DIGITAL TRANSDUCER INDICATOR

TD-275T
OPERATION MANUAL
Please read this book carefully before using this product

TEAC CORPORATION

September , 2011

D01137600B

Introduction
Thank you very much for purchasing TD-275T digital indicator unit.
To ensure optimum performance and proper and safe operation, please read this book carefully and understand it
thoroughly before using the instrument.

Information and data about this product, contained in this book, are simply for reference purposes; the Company
does not guarantee any intellectual property rights or any other rights of a third party regarding this information ordata. Accordingly, the Company does not bear any responsibility for infringement of the intellectual property rights
of a third party, and any problems incurred by the use of the products listed herein.

●Company names and product names in this document are the trademarks or registered trademarks of their respective
owners.

-1-

For Your Safety
This document describes the safety instructions for the operation of the TD-275T. Before operating the product,
read this document carefully to familiarize yourself with the product.

Warning

Follow the instructions below to avoid risk of serious personal injury and death.

Never use beyond the rated specifications as there is a danger of property damage, injury, fire or electrical shock.
Never use in flammable gaseous environments including the following locations as there is a danger of explosion.
• Locations subject to corrosive or flammable gases• Locations subject to water, oil or chemical splash
If the product malfunctions (any smoke, odor or noise is present), stop operating the product immediately and unplug
the power cord as there is a danger of fire or electrical shock.
Never attempt to disassemble the product.
Carefully check connections and wiring before applying power.
Be sure to ground the product (with ground resistance of 100 Ω or less).
The electric shock protection class of this product is Class I. The product must be grounded to the protective groundterminal for protection against electric shock.
To allow the operator to immediately shut off the power to the product, install a switch or circuit breaker that complies
with both IEC60947-1 and IEC60947-3 requirements near the product. The switch or breaker installed must also
indicate that it functions to shut off the power to the TD-275T.
Double insulation or reinforced insulation must be provided between the TD-275T and an external device connected toit and between the external device and its power source.

CautionFollow the instructions below to avoid risk of personal injury or property damage.

Disconnect the power cord when performing the following.
• Attaching or detaching optional connectors• Wiring or connecting cables to terminal blocks• Connecting the ground line
Wait for at least five seconds between turning on and off.
Never touch the rear panel or connectors while the product is turned on.
When connecting to the signal I/O connector, check the signal name and the pin assignment to prevent a false
connection. Be sure to shut off the power to the product as well when making a connection.
Use a shielded cable when connecting to a load-cell, external I/O or option.
Take adequate measures when operating in the following locations.
• Near a power line
• Where a strong electric or magnetic field is present• Where static electricity or noise such as from a relay is generated
Do not install under the following environments.
• Locations subject to temperatures exceeding the specified temperature and humidity ranges• Locations with high salt or iron content• Locations under direct vibration or shock• Outdoor, or locations with an altitude of higher than 2,000 m
Do not operate a damaged unit.
The TD-275T is classified as an open-type (built-in) device and must be installed inside a control panel.
If the top cover and the panel are dirty, wipe them with a soft cloth lightly dampened with a solution of a neutral
detergent and water, and then wipe them again with a damp, well wrung-out cloth. DO NOT use a chemically treateddust cloth, paint thinner, or other flammable solvents. Using any of them could damage the coating of the product.
If the product is used in a manner unintended by the manufacturer, the product safety may be adversely affected.

-2-

Repair of failures
This product has passed exhaustive inspections before being shipped from the factory.
Broken or defective TD-275T shall be repaired or replaced in accordance with the service standards set out by
TEAC. In any case, our liability for damages resulting from any defect or deficiencies in TD-275T shall be limited
to repair or replacement of TD-275T.
However, this shall not apply to cases in which the manufacturer is liable under the product liability law.

TEAC Corporation
1-47 Ochiai, Tama-shi, Tokyo 206-8530 Japan
Measurement Products Sales Section, Information System Sales Department,
Information Products Division
Phone: +081-42-356-9161 , Fax: +081-42-356-9185
Web site

http://www.teac.co.jp/industry/measurement/index.html-3-

Contents
1. NAMES OF PARTS AND FUNCTIONS ····································· - 9 1-1 Front Panel ··········································································· - 9 1-1-1 Digital Display Screen (TOP Screen) ················································· - 9 1-1-2 Graph Display Screen ····························································· - 11 1-1-3 Display of Operation Panel························································· - 12 -1-2 Rear Panel ··········································································· - 13 1-2-1 Protective Ground Terminal ························································ - 13 1-2-2 Shield Terminal (SHIELD) ·························································· - 13 1-2-3 Option Slot ······································································· - 13 1-2-4 AC power Source Input Terminal (AC IN) ············································ - 13 1-2-5 Sensor Signal Input Connector ····················································· - 14 1-2-6 Control Signal Input/Output Connector ············································· - 15 1-2-7 Input Signal Timing ······························································· - 16 -2. CONNECTION ························································· - 17 2-1 Connecting Strain Gauge Sensor ······················································ - 17 -2-2 Connecting TEDS Memory ···························································· - 17 -2-3 Connecting Voltage Output (V-OUT) ··················································· - 18 -2-4 Connecting Control Signal Input/Output················································ - 18 2-4-1 Connecting External Output························································ - 18 2-4-2 Connecting External Input ························································· - 19 -3. SETTING MODE CONFIGURATION ······································ - 20 3-1 Screen Configuration ································································· - 20 -3-2 Setting Screen Hierarchy ····························································· - 21 --4-

4. CALIBRATION OF SENSOR ············································· - 22 4-1 Calibration of Load ··································································· - 22 -4-2 Before Calibration ···································································· - 23 -4-3 Sensor Calibration ··································································· - 23 4-3-1 Equivalent Input Calibration························································ - 24 4-3-2 Real Load Calibration ····························································· - 24 4-3-3 TEDS Calibration·································································· - 25 4-3-4 Selecting Load Unit ······························································· - 27 4-3-5 Adjusting Zero Point ······························································ - 27 4-3-6 Selecting BV (Bridge Voltage) ······················································ - 27 4-3-7 Setting Digital Offset (Tare) ························································ - 28 -4-4 Setting Measuring Time······························································· - 28 -5. SENSOR SETTINGS ···················································· - 29 5-1 Minimum Scale Settings ······························································ - 29 -5-2 Zero Limit Settings ··································································· - 29 -5-3 Analog Filter Settings································································· - 30 -5-4 Digital Filter Settings ································································· - 30 -5-5 Constant Judge Settings······························································ - 30 -5-6 Load Value Color Display Settings ····················································· - 30 -6. MEASUREMENT DISPLAY SETTINGS···································· - 31 6-1 Graph Range Settings ································································ - 31 -6-2 Grid Settings········································································· - 31 -6-3 Strain Display ········································································ - 32 -5-

7. WORK SETTINGS ······················································ - 33 7-1 Setting Work and Switching to a Different Work ········································ - 33 -7-2 Various Settings for Each Work ······················································· - 33 7-2-1 Measuring Start Condition Settings················································· - 34 7-2-2 Measuring Stop Condition Settings ················································· - 34 7-2-3 Measuring Time Settings ·························································· - 37 7-2-4 Setting Hold Conditions ··························································· - 37 7-2-4-1 Sample Hold··································································· - 38 7-2-4-2 Peak Hold ····································································· - 39 7-2-4-3 Inflection Point Hold ··························································· - 40 7-2-4-4 Maximum/Minimum Value Hold ················································· - 42 7-2-5 Setting the Load Limits ···························································· - 44 7-2-6 Measuring Display Settings ························································ - 45 7-2-6-1 Graph Range Settings ·························································· - 46 7-2-6-2 Grid Settings ·································································· - 46 7-2-6-3 Measuring Display Settings from the Graph Screen ······························· - 47 -8. CF (COMPACT FLASH) SETTINGS ······································ - 48 8-1 Auto Store and Capture Settings ······················································ - 48 -8-2 Filename Settings ···································································· - 49 -8-3 Remaining Alert and Limit Settings ···················································· - 50 -8-4 Decimation ·········································································· - 51 -8-5 Saving a Setup File ··································································· - 51 -8-6 Loading a Setup File·································································· - 52 -8-7 Installing and Removing a CF Card ···················································· - 53 -8-8 File Erase and Format ································································ - 54 -6-

8-9 Recorded Data Format ································································ - 54 -9. SYSTEM SETTINGS ···················································· - 55 9-1 LCD Settings········································································· - 55 -9-2 IN/OUT (IN/OUT check)································································ - 55 -9-3 Initializing Settings ··································································· - 56 -9-4 Backlight Off Timer Settings ·························································· - 57 -9-5 Clock Settings ······································································· - 57 -9-6 System Information··································································· - 57 -9-7 Buzzer Settings ······································································ - 58 -9-8 LANG (言語)·········································································· - 58 -9-9 Key Lock Select ······································································ - 58 -10. SETTINGS WHEN AN OPTIONAL BOARD IS INSTALLED ················· - 59 10-1 Setting D/A Converter ······························································· - 59 10-1-1 DA Output Adjustment ··························································· - 60 10-1-2 Output Test······································································ - 60 10-1-3 Voltage and Current Output Connections ·········································· - 61 10-1-4 Resolution ······································································ - 61 10-1-5 D/A Output Error ································································· - 61 -10-2 Setting RS-232C Interface···························································· - 62 10-2-1 Baud Rate Settings······························································· - 62 10-2-2 Flow Control Setting ····························································· - 62 10-2-3 Parity Settings ··································································· - 63 10-2-4 Communication Specifications ···················································· - 63 10-2-5 Communication Format ·························································· - 65 -7-

10-2-6 Control Commands ······························································ - 65 -11. OVERSCALE/ERROR DISPLAYS ······································· - 70 11-1 Errors Related to Load Sensor ······················································· - 70 -11-2 Errors During Load Sensor Calibration················································ - 71 -12. HARDWARE INSTALLATION··········································· - 72 13. SPECIFICATIONS ····················································· - 73 14. DIMENSIONS ························································· - 75 --8-

1. Names of Parts and Functions
1-1 Front Panel
1-1-1 Digital Display Screen (TOP Screen)
Hold display

Power Lamp
HI-HI/LO-LO limit values
HI/LO limit values
Judgment result

Status display

Judgment result detail button
Measuredvalue display

Reset button

Work display
Start button
Change view button

CF card slot

Setting button

Digital zero (load) button

Time display

Power Lamp : Turns on when power is supplied.
HI-HI/LO-LO limit values : Indicates the settings of HI-HI/LO-LO limit values.
HI/LO limit values : Indicates the settings of HI/LO limit values.
Status display : Indicates the operational state of this indicator.

StatusDescription

STOP

Indicates that measurement is stopped.

RDY

Indicates that the system is waiting for the measuring start conditions (if set) toREC

Indicates that measurement is started.

Hold display : Gives a display as shown below when a hold condition is met during measurement.

Hold setting

Display

Sample

HOLD

Peak

PEAK

-9-

Judgment result : If you set the judgment function, a measured value is judged to display the result.

Judgment settings

Display

None

Description
Judgment is not performed.

Load: HI/LO limitsH

The measured value is larger than the HI limit

OK

The measured value is within the HI and LO

value.

limit values.
L

The measured value is smaller than the LO
limit value.

Load: HI/LO limits,

HH

HI-HI/LO-LO limits

The measured value is larger than the HI-HI
limit value.

H

The measured value is larger than the HI limit
value.

OK

The measured value is within the HI and LO
limit values.

L

The measured value is smaller than the LO
limit value.

LL

The measured value is smaller than the
LO-LO limit value.

Judgment result detail button : Displays details of the comparison result.

Example of “Judgment
result detail” screen
Measured value display : Indicates a load value that the indicator receives.
Reset button : Stop measurement; and also to clear measured data, hold values, and judgment
results.
Start button : Starts measurement.
Work display : Indicates a selected work number. A number followed by the letter “M” indicates thatthe number is manually set.
Time display: Usually, indicates measuring time. However, hold time is indicated when peak hold or
external sample hold is set.

Change view button : Changes the view to the graphic screen.
Setting button: Navigates you to the settings screen, from which you can perform various settings.
Selecting this button clears measured data, hold values, and judgment results.
- 10 -

Digital zero load button : Sets an input load value as digital zero.
CF card slot : When you insert the CF card to or remove it from the indicator, pull the cover toward
you to open it.

1-1-2 Graph Display Screen
Cursor button

Start button

Graph range
Load HI-HI limit value
Load HI limit value
Judged load value
Load LO limit value
Load LO-LO limit value
Graph range

Change view button

ChangeMeasuring time display

Load value display

measuring display

Start button : Starts or stops measurement.
Cursor button : Displays a cursor. You can move the cursor, display a cursor value, and scale up or
down the waveform. Also you can scale up or down the horizontal axis with a cursor
position centered.
Graph range : Indicates a predetermined graph range. Graph is plotted within this graph range.
Load HI-HI limit value : Indicates the settings of the load HI-HI limit value.
Load HI limit value : Indicates the settings of the load HI limit value.
Judged load value : Indicates a load value which was judged and time, when a load judgment function is
set.
Load LO limit value : Indicates the settings of the load LO limit value.
Load LO-LO limit value : Indicates the settings of the load LO-LO limit value.
Change view button : Changes the view to the digital display screen (TOP screen).
Change measuring display : Enables you to change measuring display (axis, scale, grid, etc.)
Measuring time : Indicates measuring time.
Load value display : Indicates a load value that the indicator receives.

- 11 -

1-1-3 Display of Operation Panel
TD-275T is equipped with the touch panel LCD display for initializing sensors or performing various operations.
On this panel, the setting selection display, the strain display, the graph display, or other can be selected.

Settings screen

Strain screen

Load sensor calibration screen

Use your finger to push the touch panel lightly. Do not push
the touch panel using a firm object or a sharp-tipped object.
Otherwise, the touch panel might be damaged.

Caution

Do not push more than one location of the touch panel at atime. If you do so, TD-275T may not recognize your operation
correctly.

Note:- 12 -

1-2 Rear PanelAC power source input terminal
AC電源入力端子
保護接地端子Protective
ground terminal

SERIAL NO.

MADE IN MALAYSIA

Shieldterminal
シールド端子

センサ信号入力

Sensor signal input connector
コネクタ

制御信号入出力

オプション

Control signal input/output connector
slot
コネクタ Option
スペース

1-2-1 Protective Ground Terminal
This is a protective ground terminal screw. Be sure to ground the protective ground terminal to prevent electric
shocks and failures due to static electricity.
1-2-2 Shield Terminal (SHIELD)This is a frame ground terminal.
1-2-3 Option Slot
Either of the following options can be mounted (Factory pre-installed option).
・ D/A converter
・ RS-232C interface
1-2-4 AC power Source Input Terminal (AC IN)
The AC power input voltage is 100–240 V AC.
2
For power supply connection, use power wires that are 0.326 to 2.081 mm in cross-sectional area (22 to 14
AWG).
Connect those wires to the terminal block by using crimp connectors (for M4, 8.5 mm or less in width).
・ Power cord wire colors (for the provided AC power cord)
L : Black
N : White
FG : Green/yellow (protective ground)・ The provided AC power cord is only intended for use within Japan, rated for 10 A at 125 V AC. If you want to
use the TD-275T at a voltage exceeding the specified voltage or overseas, be sure to use another AC power
cord that is more appropriate for your operating
・ The frequency is 50 / 60 Hz.

黒
白
緑

Black
White
Green/Yellow- 13 -

1-2-5 Sensor Signal Input Connector
Strip about 5 mm of insulation off each signal wire andlightly twist the bare wire to fit the terminal hole.
Use a mini screwdriver to connect the wires.
Applicable wire is 1.5φ or less (AWG 28 – 16).
Pull the connected cable lightly and check that the cable issecurely clamped.
In particular, make sure that the sensors are firmly
connected.

Approx. 5 mm
約５ｍｍ

緩む
loosening

Compatible connector

締めるtightening

Phoenix Contact (supplied with this instrument)
MC 1.5/12-STF-5.08
ＡＷＧ１６～２８
AWG16-28

1

TEDS

2

GND

3

+EXC (A)4-SIG (B)5-EXC (C)6+SIG (D)

7

V-OUT

8

COM

9

RESERVED10

RESERVED11

RESERVED

12

F.G

1, 2: TEDS Sensor Data Input
A TEDS sensor has an NDI-7P output, and so a TEDS
conversion cable is used for connection.
1･････ +2･････ COM(Orange)(Green)3－6: Terminal for connecting a strain gauge sensor.
3･･････ +EXC
4･･････ -SIG
5･･････ -EXC
6･･････ +SIG

(Red A)(Black B)(Blue C)
(White D)7, 8: Terminal for outputting a voltage proportional to the sensor input.
Output voltage is approx. 1 V per 1 mV/V sensor input.
7･･････ Voltage output (0 to approx. ±3 V）
8･･････ COM

9－11: Reserved
Reserved. Leave unconnected.

12: F.G (Frame Ground)Terminal for connecting the shield (outer sheath) of a load sensor.

- 14 -

1-2-6 Control Signal Input/Output Connector
Pin

In/OutSignal Name

Pin

No.

In/OutSignal Name

No.

A1

IN

Load Digital Zero

B1

IN

Work Select 1

A2

－

A3

IN

Reserved

B2

IN

Work Select 2

Measurement Start/Stop

B3

IN

A4

Work Select 3－

Reserved

B4

IN

A5

Work Select 4

IN

Hold Command

B5

IN

External Judgment Reset

A6

IN

Reset

B6

－

Signal COM

A7－

Reserved

B7－

Signal COM

A8－

Reserved

B8－

Signal COM

A9

Out

B9

－

Signal COM

A10

Out

LO

B10

－

Reserved

A11

Out

Judgment

GO

B11

－

Reserved

A12

Out

Output

HI

B12

Out

Judgment Completed

A13

Out

HH

B13

Out

Measurement Completed

A14－

Reserved

B14

Out

Load Normal

A15－

Reserved

B15－

Reserved

A16－

Reserved

B16－

Reserved

LL

Compatible Connector:

Signal Name and Function
A1 : Load Digital Zero

Fujitsu Connector FCN-361J032-AU
Cover
FCN-360C032-B

Performs digital zero for a load value on the ON edge.
However, the digital zero function is not available if the current load value exceeds the“zero limit setting” when the “zero balance” value of a load sensor calibration is set as
zero.

A3

: Measurement Start/Stop
Typically, measurement is ready on the ON edge and measurement is terminated on
the OFF edge.
An actual measurement is started based on the conditions for starting/stopping themeasurement which are set on a work-by-work basis.
A measurement can be started based on either (1) the start signal or (2) a combinationof the start signal and load values.
A measurement can be stopped in the same fashion.

A5: Hold Command

Functions as a load value hold timing contact signal. During “Sample Hold”, holds anddetermines the load value at the ON timing.
However, when a signal makes an ON-OFF-ON transition, the load value is held at thefirst ON timing of the measurement.
Indication of load values is also held, but the waveform (data) continues to beisplayed.

A6: ResetUsed to abort all the current operations, regardless of whether they completed
successfully or not, and discard the measurement data, if errors or other abnormal
conditions occur.
The indicator will return back to the state it was when last powered on (The settings are
retained).

A9 (LL) : Load Judgment Output
A10 (LO)
Compares a load value held in each hold mode with the load judgment values to
A11 (GO)produce a NO/GO result, during measurement.
A12 (HI)A13 (HH)
A2,A4,A7,A8,A14,A15,A16: Reserved

Reserved. Leave unconnected.
- 15 -

B1: (Work Select 1)
B2 (Work Select 2)
B3 (Work Select 3)
B4 (Work Select 4)
B5

External entry of a work number. It is necessary to set this entry prior to A3“Measurement Start/Stop.”
Note that this entry is available only if “SETTINGS”→”WORK INPUT”→”EXT INPUT”
is chosen.

: External Judgment Reset
Resets a Load Judgment Output (A9, A10, A11, A12, A13).
Resets the load judgment output of a hold value and switches to continuous judgment
output when continuous judgment is “enabled.”
Hold and judgment indications in the screen remain unaffected.

B6,B7,B8,B9: Signal COM
COM (common) terminal for input/output signals.

B12: Judgment Completed
Available in a Hold mode which uniquely determines a load hold point, such as Sample
Hold. Turns ON when the Hold mode is completed. Turns OFF when a newmeasurement start/stop signal is received.

B13: Measurement Completed
Turns ON when measurement is completed and data is stored in CF.
Now ready for a new measurement.

B14: Load Normal

B10,B11,B14,B15: Reserved

Turns OFF when errors associated with load cells, such as digital zero limit, sensor
errors, or display value overflow, are detected.

Reserved. Leave unconnected.

1-2-7 Input Signal Timing
For input/output signal timing, see a timing chart for each hold mode.
To check the status of each input and output signal, select “SETTINGS”→”DETAIL SET”→”SYSTEM”→”IN/OUT”→”INPUT” to monitor the status of each external input contact of the indicator in real time.
Status signals output from the indicator and each judgment output line of the load contacts can be individuallyturned on or off by selecting “IN/OUT”→”OUTPUT.”- 16 -

2. Connection
2-1 Connecting Strain Gauge Sensor◇ Setting bridge voltage
Set a bridge voltage in accordance with the specifications of a sensor before connecting the sensor.
Note that selecting an incorrect bridge voltage may damage the sensor.
From the TOP screen, choose “SETTINGS”→“DETAIL SET”→“SENSOR CAL.”→“LOAD-CELL”→“BV” to set a bridge voltage.
Select a bridge voltage in accordance with the specifications of asensor to be connected to TD-275T.
Bridge voltage can be set to 2.5 V or 10 V.

Load B.V select screen
Be sure to set a bridge voltage before connecting a sensor.
Incorrect connection may damage the sensor.
Caution◇ Connecting Sensor

TD-275T

For 6-wire load cell, short-circuit +EXC with +SENSE and -EXC with –SENSE; and connect to terminal No.3(+EXC) and terminal No.5 (-EXC).

2-2 Connecting TEDS Memory
TD-275T←InsideTEDS
GND

You need to connect TEDS memory to TD-275T
when using a TEDS sensor.
Otherwise, leave it unconnected.

Outside→

1
2

Data
GND

TEDS
Memory- 17 -

2-3 Connecting Voltage Output (V-OUT)
TD-275T←Inside Outside→
V-OUT
COM

7

＋

8

－

External
deviceF.G/GND

V-OUT is not isolated from the internal circuit. Use ashield cable for connecting V-OUT with an external
device and keep an extended wiring cable as short as
possible.
Do not short-circuit the voltage output; and do not
applying external voltage.
Doing so may cause a failure.
When you do not use the voltage output, leave it
unconnected.
Output voltage is approx. 1 V per 1 mV/V (sensor
input). This value is voltage output after zero balanceof a sensor is achieved.

2-4 Connecting Control Signal Input/Output
2-4-1 Connecting External Output
Output equivalent circuit
Vcc

+5V

Vext

TD-275T←InsideOpen collector output capacity: 30 V (max), 30mA(max).

Outside→Every control signal output is designed to beelectrically isolated from the internal circuit by thephotocouplers.

COM

State of output transistor
Output data Transistor
０

OFF

１

OＮ

- 18 -

2-4-2 Connecting External Input
Input equivalent circuit

Open → OFF

Toggle switch

Short → ON
Vcc

+5V

TD-275T←InsideOutside→Relay contact

Approx. 8mA
PUSH switch
Transistor
COM

COM

+5V power supply is electrically isolated
TTL open collector

from TD-275T internal power supply

IN

ON when IN is ‘H’

Because a current of approx. 8 mA flows into the external contact when it is turned ON, use a contact element
which withstands 10 mA or more.
Avoid applying external voltage.
Every control signal input is designed to be electrically isolated from the main circuit by the internal isolated
power supply (5 V).

Note:- 19 -

3. Setting Mode Configuration
3-1 Screen Configuration
Graph display screen

Digital display screen (TOP screen)

Settings screen
From “WORKINPUT” and"HIGH ““HI LOW LIMT”

From“DETAIL SET”

Detail settings screen

Meas. display (COMMON) screen

To Graph range, Grid settings,
Strain display, etc.

Sensor calibration screen

CF card settings screen

Sensor settings screen
Work No. selection screen

To minimum scale, analog filter,
digital filter, zero limit settings
for sensor

Work input settings screen

System settings screen

A method of switching work No.
can be selected.

“MANUAL”

allows you to select a work
number without external contact
input.

HI LO limit settings screen
In this screen, load HI LO limit
values can be set and changed
on a work-by-work basis.

“TOP” button (if available) on each screen allows you to return to the digital display screen (TOP screen).
- 20 -

3-2 Setting Screen Hierarchy

TOP

Settings

HI LO Limit
Detail settings

Meas. display

WORK settings

Graph range
Grid settings
Strain display
Operating condition 1

Grid settings
Measuring start
Measuring stop
Hold settings
Criterion settings

Measuring time
Meas. display

Measuring start load
Measuring stop load
Inflection point
Maximum,Minimum selectLoad detection

Meas. Time
Meas. display

Operating condition 16

Sensor calibration

Load sensor

CF

System settings

Load sensor

Equiv. input cal.
Real load calibration
TEDS calibration
Load unit
Load unit
BV select
DIGITAL OFFSET SETTING

Meas. Time
Load minimum scale
Load zero limit
Analog filter
Digital filter
Const. judge settings
LOAD COL. SETTING
CF auto storing
CF file nameCF remaining alert
Decimation
CF Save settings
CF Load settings
LCD settings
Backlight off timer
IN/OUT check

Minimum scale value

CF remaining alert

Backlight off timer
IN check
Out check

System initialize
Clock settings
System information
OptionBuzzer settings
LANG (言語)Key lock selectSystem reboot
Work Input settings

OFFSET VALUE SETTING

Manual WORK Select- 21 -Out Status
OUT Load

Maximum,Minimum
Load HI LO limit
Load HI_HI LO_LO
HYSTERESIS SETTING
Graph range
Grid settings

Load HI_HI LO_LO

Grid settings

4. Calibration of Sensor
4-1 Calibration of Load
“Calibration” refers to an operation for matching between the TD-275T and a strain gauge sensor.
The TD-275T offers the three calibration methods as described below.

◇ Equivalent input calibration
This approach uses no actual loads but key entry of the rated output value (mV/V) of the strain gauge sensor andthe rated capacity (value to be displayed). This method is simple and employed when actual loads cannot beapplied.
For example, gain will be automatically determined and displayed by entering the values indicated as follows:
For load: 2.001 mV/V-100 N
For pressure: 2.002 mV/V-10.00 MPa
For torque: 2.502 mV/V-15.00 N･m

At the time of factory shipment, a data sheet is attached to a strain gauge sensor, indicating
the following values.
Rated Capacity ･････････････････････ Load (Unit: kg, ton, etc.)
Rated Output ･･･････････････････････ Voltage (Unit: mV/V)
Nonlinearity････････････････････････ %R.O
Hysteresis･･････････････････････････ %R.O
Input Terminal Resistance ･･･････････ Ω
Output Terminal Resistance ･･････････ Ω-6Zero Balance････････････････････････ x10 strain

The rated capacity and rated output are the necessary values for equivalent calibration.
For a TEDS sensor, these data are stored on the internal memory.

◇ Real load calibration
It is an accurate and low-error calibration method by applying a real load to the strain gage sensor and entering thedisplay value (load value) set on the equivalent input calibration screen.

◇ TEDS calibration
It is a calibration method using the data stored in a TEDS memory in which the rated output value (mV/V) and therated capacity of a strain gage sensor are recorded.
Two types of TEDS-compatible memories are available: 1 kBit and 4 kBit. TD-275T supports only 4 kBit memory.

- 22 -

4-2 Before Calibration◇ Setting bridge voltage
Set a bridge voltage in accordance with the specifications of a sensor.
Note that selecting an incorrect bridge voltage may damage the sensor.
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“SENSOR CAL.”→“LOAD-CELL”→“BV” to set a
bridge voltage.

Load B.V select screen (with 2.5 V selected)

Be sure to set a bridge voltage before connecting a sensor.
Incorrect connection may damage the sensor.
Caution◇ In case that indication is “unstable”/Zero balance is not achieved
If indication is unstable when a sensor is connected and powered on or if zero balance is not achieved at the
moment of calibration, the zero adjustment range (0 to ±2 mV/V) may be exceeded.
In this case, switch to the “Strain display” mode (by choosing “SETTINGS”→”DETAIL SET”→”VIEW”→”STRAIN”) and check the indicated value.
In this mode, a strain value which includes offset is shown as a sensor output. A sensor output of ±3 mV/V isindicated as 0 to ±6000 µst.

4-3 Sensor Calibration
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“SENSOR CAL.”
In the Sensor calibration screen, specify settings for load sensor calibrations
and measuring time.
From the Sensor calibration screen, select “LOAD-CELL” to display the Loadsensor screens.
In the Load sensor screen, specify settings for equivalent calibration, TEDS
Sensor calibration screen

calibration, zero adjustment, real load calibration, unit select, BV select, anddigital offset.

- 23 -

Pushing

on the Load sensor 1 screen advances to the Load sensor 2 screen, and pushingon the Loadsensor 2 screen returns to the Load sensor 1 screen.

Load sensor 1 screen

Load sensor 2 screen

Prior to each calibration, select “ZERO BAL” on the Load sensor screen to perform zero adjustment. Be sure to
perform the zero adjustment to record an initial zero point of a connected sensor. This zero point serves as a basepoint of “zero limit” value, which is available in the Load sensor screen.
Further, push the “UNIT” button to set the unit of a load sensor.
Seven types of units are supported: N, kN, g, kg, MPa, kPa, and Nm.
4-3-1 Equivalent Input Calibration
From the Load sensor 1 screen, select “EQUIV. INPUT.”Enter a rated output based on the data sheet of the connected sensor.
Next, enter a rated capacity on the entry screen based on the data sheet of thesensor as well.
Set values by selecting “R.O.” or “DISPLAY” (“R.O.” is selected in the figure on
the left), using theEquiv. input cal. screen

key to place the cursor over a digit you want tochange, and using the

key to set a desired value, and then push

the “Update” button to confirm.
To change the decimal point position of the indicated value, place the cursor
over the decimal point, and use thekey to move the decimal

point.

4-3-2 Real Load Calibration
Prior to performing a real load calibration, select “EQUIV. INPUT” and set an actual load value as “DISPLAY” value inthe Equivalent input calibration screen. This load value is reflected in “Real load calibration.”
From the Load sensor 1 screen, select “REAL LOAD” to perform “ZERO” and“MEASURE.”

ZERO (Zero point measurement): With the load sensor unloaded, push the“ZERO” button to set the zero point of the sensor.
A bar is displayed indicating the zero point amount. The
Real load calibration screen

indicated value is zero.
If the indicated value is stable or non-zero is indicated,check the sensor and sensor cable.
Zero point is adjustable within a range of about ±2 mV/V.
- 24 -

MEASURE (Span adjustment): Place a weight to be measured on the sensor
and push the “MEASURE” button.
A bar is displayed indicating the amount of displacement.
When your desired display appears, push the “OK”
button to terminate the processing.
Just as in the case of zero point measurement, if theindicated value is stable or non-zero is indicated, checkthe sensor and sensor cable.

Perform “ZERO” and “MEASURE” and then push the “UPDATE” button. The real load calibration will take effect.
4-3-3 TEDS Calibration
From the Load sensor 1 screen, select “TEDS.”TEDS calibration screen

Example of screen after data read

Push the “READ” button on the TEDS calibration screen.
When read is completed, the rated output of the sensor as well as display value (rated capacity) and its unit are
displayed on the screen. Then push the “UPDATE" button to complete the calibration.
Caution) You need to connect a TEDS-capable sensor to TD-275T if performing TEDS calibration.

- 25 -

◇ Rated capacity display digit in TEDS calibration
A TEDS calibration performs a sensitivity calibration by retrieving the memory data in the sensor. A sensor is available
in various rated capacities (display values).
In TEDS calibration, TD-275T displays rated capacity values as shown in the table below.
The TEDS calibration data is stored in TD-275T. Thus, if any changes to display values are required after thecalibration is performed, return to the Equivalent input calibration screen and change the value of “DISPLAY” and its
decimal point position.

TEDS calibrated data

Indicator display(mV/V) display values

number of digits after
the decimal point
1N

1.000

2N

2.000

3N

3.000

4N

4.000

5N

5.00

10N

10.00

20N

20.00

30N

30.00

40N

40.00

50N

50.0

100N

100.0

200N

200.0

300N

300.0

400N

400.0

500N

500

1KN

1.000

2KN

2.000

3KN

3.000

4KN

4.000

5KN

5.00

- 26 -

4-3-4 Selecting Load Unit
From the Load sensor 1 screen, select “UNIT.”

Set the unit of load.
Available settings: N, kN, g, kg, kPa, MPa, Nm, or NONE.

Load unit screen

4-3-5 Adjusting Zero Point
From the Load sensor 1 screen, select “ZERO BAL.”

Be sure to perform the zero adjustment to record an initial zero point of aconnected sensor. The zero point serves as a base point for measurement.

Zero adjustment screen
4-3-6 Selecting BV (Bridge Voltage)
From the Load sensor 1 screen, select “BV.”
Set a bridge voltage (EXC) in accordance with the specifications of the sensor.
Available settings: either 2.5 V or 10 V.

Load BV select screen

Be sure to set a bridge voltage before connecting a sensor.
CautionIncorrect connection may damage the sensor.

- 27 -

4-3-7 Setting Digital Offset (Tare)
From the Load sensor 2 screen, select “DIG. OFFSET.”The digital offset function displays a value obtained by subtracting a set digital
offset value from a measured value.
This function is disabled for the real load calibration.

INVALID: The digital offset function is disabled.
VALID: The digital offset function is enabled.
DIGITAL OFFSET SETTING screen

Select “SEETINGS” on the DIGITAL OFFSET SETTING screen to set a digital
offset value.

Set values by using the

key to place the cursor over a digit you

want to change, and using the
OFFSET VALUE SETTING screen

key to set a desired value, andthen push the “Update” button to confirm.
Set the sign by placing the cursor to the leftmost position, and using the
key to determine the sign.

4-4 Setting Measuring Time
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“SENSOR CAL”→“TIME.”
Measuring time is set along the time axis (horizontal axis) of the graph display screen.
A measuring time of 0.1 to 99.9 seconds can be set.
A set time serves as the maximum time (from the start of measurement).
Set the maximum measuring time in the Meas. Time (COMMON) screen.
A measuring time of 0.1 to 99.9 seconds can be set.
Set values by using the

key to place the cursor over a digit you

want to change, and using the

key to set a desired value, andthen push the “Update” button to confirm.
Meas. Time (COMMON) screen

The measuring time which is set here is applied when you select “COMMON”
in measuring time setting for each work.
To select ”COMMON,” from the TOP screen, select “SETTINGS”→”DETAIL
SET”→”WORK”→”Work No.” (1 to 16)→”MEAS.TIME” to access the
Measuring time screen.
If you want to set a measuring time on a work-by-work basis, select “BY
Measuring time screen of each work

WORK”→”SETTINGS” in the Measuring time screen to enter a desired value.

- 28 -

5. Sensor SettingsSpecify load sensor settings for a minimum scale value, digital and analog filters, a zero limit value, constant judgment, andload color display.
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“SENSOR SET.”The Load sensor screen allows you to determine settings for “MIN SCALE”,“ZERO LIMIT”, “ANALOG FLT”, “DIGITAL FLT”, “CONST. JUDGE” and“LD COL DISP.”

Load sensor screen

5-1 Minimum Scale Settings
From the Load sensor screen, select “MIN SCALE.”
Select whether the minimum scale settings for load value display are enabledor disabled.

INVALID: The minimum scale settings are disabled.
VALID : The minimum scale settings are enabled.
Load minimum scale screen

On the “Load minimum scale” screen, select “SETTINGS” to enter a minimum
scale value.
All load values are truncated according to the specified value.

Set values by using the

key to place the cursor over a digit you

want to change, and using the
Minimum scale value screen

key to set a desired value, andthen push the “Update” button to confirm.

5-2 Zero Limit Settings
From the Load sensor screen, select “ZERO LIMIT.”Specify a range where the “DZ” (Digital Zero) function is effective.
The Digital Zero function performs comparison based on a load value set in“ZERO BAL” on the Load sensor 1 screen (accessible from the Sensor
calibration screen). If the load value detected when the DZ button is pressed
exceeds the zero limit value specified here, the Digital Zero function will notwork. This will prevent possible failures of the load sensor, such as a shift ofthe zero point.
Load zero limit screen

Set values by using the

key to place the cursor over a digit you

want to change, and using thethen push the “Update” button to confirm.

- 29 -

key to set a desired value, and5-3 Analog Filter Settings
From the Load sensor screen, select “ANALOG FLT.”This analog filter has a cutoff frequency of 10Hz, 30Hz, 100Hz or 300Hz, and isconnected upstream of the A/D converter.
When necessary, such as when load values are unstable, select an appropriate
frequency.

Analog filter screen
5-4 Digital Filter Settings
From the Load sensor screen, select “DIGITAL FLT.”This digital filter utilizes the moving average technique. Select the number ofmeasurements: NONE, 4, 16, 64, 128, 256, 512 or 1024.

Digital filter screen
5-5 Constant Judge Settings
From the Load sensor screen, select “CONST. JUDGE.”
When enabled, until a measured value is held, results obtained by judging thepresent value according to the judgment conditions are always output.
After a measured value is held, results obtained by judging the held value
according to the judgment conditions are output.
When “NONE” is selected on the Criterion select screen, judgment results are
not output.

Const. judge settings screen

INVALID : After a value is held, results obtained by comparing the held value
with the load H_H/L_L limits and HI/LO limits are always output(Before a value is held, results are not output).
VALID : Results obtained by comparing the present value with the load
H_H/L_L limits and HI/LO limits are always output.
After a value is held, results obtained by comparing the held value
with the load H_H/L_L limits and HI/LO limits are always output.

5-6 Load Value Color Display Settings
From the Load sensor screen, select “LD COL DISP.”
When enabled, load values are displayed in different colors according to the
judgment results. Red indicates H_H and L_L limit values, yellow indicates HI
and LO limit values, and green indicates a normal value.
INVALID: Values are displayed in pale yellow.
VALID: Values are displayed in different colors according to the judgment
results.＊Note
LOAD COL. SETTING screen- 30 -

6. Measurement Display Settings
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“VIEW.”
The Meas. Display (COMMON) screen allows you to determine settings for“GRAPH SET.”, “GRID”, and “STRAIN.”

Meas. display (COMMON) screen
6-1 Graph Range Settings
From the Meas. display (COMMON) screen, select “GRAPH SET.”
Set the graph range.
X1: Set the plot start time along the horizontal axis. In most cases, enter
0.0 s.
X2: Set the plot stop time along the horizontal axis. In most cases, enter themeasuring time.
Y1: Set the plot value along the load axis. In most cases, enter “0.”Y2: Set the maximum plot value along the load axis. In most cases, enter theGraph range screen

maximum load value of the load sensor.
Set values by selecting an axis (X1, X2, Y1, Y2), using the

key toplace the cursor over a digit you want to change, and using the
key to set a desired value, and then push the “Update” button to confirm.
Signs are set by moving to the leftmost position and using thekey (Y1, Y2).
6-2 Grid Settings
From the Meas. display (COMMON) screen, select “GRID.”The Grid setting screen allows you to specify whether or not to display gridlines.
NOT DISPLAY: Grid lines are not displayed on graph screens.
DISPLAY: Grid lines are displayed on graph screens.

Grid settings screen
Select “SETTINGS” to set grid values.
X: Grid lines are plotted along the X axis which you set in “Graph range.”
When you select “Time” as the horizontal axis, about 1/5 to 1/10 of thetime setting is suggested.
Y: Grid lines are plotted along the Y axis which you set in “Graph range.”
About 1/5 to 1/10 of the maximum plot value is suggested.
Grid settings screen

Set values by selecting an axis (X, Y), using the
cursor over a digit you want to change, and using the- 31 -

key to place thekey to set a

desired value, and then push the “Update” button to confirm.

6-3 Strain Display
The screen allows you to check the load sensor, and displays signals from the load sensor in units of the amount ofstrain.
It is recommended that you note down the strain value shown in “Strain display” when integrating TD-275T with yoursystem.
From the Meas. display (COMMON) screen, select “Strain.”
An incoming value is displayed in strain mode (µst).

Strain display screenNote:- 32 -

7. Work Settings
7-1 Setting Work and Switching to a Different WorkTo select a work number and set the work, select “SETTINGS” →”DETAIL SET”→“WORK”→“Work No.” (1 to 16).
Set the operating condition for each work number.
Work settings allow you to program a maximum of 16 operating conditions.

To switch to a different work, select “SETTINGS”→”WORK INPUT” from the TOP screen.
Select either “EXT. INPUT” or “MANUAL.” When you select “MANUAL”, specify your desired Work number (1 to16).
When you want to select a work number by using external signals (control signal inputs: B1, B2, B3, B4), select “EXT.
INPUT.” In the external input mode, the external input signal given immediately before the measurement starts is
applied. Once the measurement starts, if a different external input is given, the work number remains unchanged.

Settings screen

WORK Input settings screen

Manual WORK Select screen

When using an external input signal to select a work number, make sure that a
Cautionwork number is selected before measurement starts.

7-2 Various Settings for Each WorkYou can define various settings, such as measuring start/stop conditions, hold mode, and load criterion, for each work.

From the TOP screen, select “SETTINGS“→“DETAIL SET”→“WORK”→“WORK No.” (1 to 16) to set the operating conditions for each work number.
Up to 16 works can be set.
The Operating condition screen contains “MEAS. START”, ”MEAS.
STOP”, ”MEAS. TIME”, ”HOLD SET.”, ”CRITERION”, and “MEAS. DISP.”
Operating condition screen- 33 -

7-2-1 Measuring Start Condition Settings
As a measuring start condition, select “START SIGNAL” (the START button on the screen or an external measuring
start/stop signal) or “START+LOAD.”
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“MEAS. START.”START SIGNAL : Measurement is started through a start signal (when the
START button on the screen or an external measuring
start/stop signal is turned ON).
START+LOAD : Measurement is started through a start signal and when theload value set in “LOAD SET.” is exceeded (ANDcondition).
Measuring start screen

7-2-2 Measuring Stop Condition Settings
As a measuring stop condition, select “STOP SIGNAL” (when the measuring time expires or when an externalmeasuring start/stop signal is turned OFF), or “STOP+LOAD.”
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“MEAS. STOP.”STOP SIGNAL : Measurement is stopped through a stop signal (when themeasuring time expires or an external measuring start/stop
signal is turned OFF).
STOP+LOAD : Measurement is stopped through a stop signal or when thefollowing conditions are met (OR condition).
Measurement is stopped differently depending on which
Measuring stop screen

value (measuring start load or measuring stop load) is large.
The value set in “LOAD SET.” on the “Measuring start”
screen is referred to as a measuring start load value, evenwhen “START SIGNAL” is selected.
・ Measuring start load ≤ measuring stop load:
Measurement is stopped when the load value is larger
than the measuring start load and measuring stop load
values.
・ Measuring start load > measuring stop load:
Measurement is stopped after the load value is equal to or
larger than the measuring start load value and when theload value is equal to or less than the measuring stop load
value.
LOAD : Measurement is stopped when the measuring time expires orwhen the above-listed load setting conditions are met(irrelative of whether or not an external measuring start/stop
signal is turned OFF).
STOP+CONT. : Measurement is performed continuously (continuous
measurement).
During continuous measurement, measurement data can not- 34 -

be recorded on a CF card.
Select the “CONT.SET.” button to set the wait time. The
wait time is a time interval between when a measuring time
expires and when the next measurement is performed.
On the graph display screen, each time a measuring time
expires, erase the plotted graph so that a new graph isplotted for each measurement.
Wait time settings screen
You can set a wait time between 0.0 and 99.9 seconds. Set values by using theover a digit you want to change, and using the

key to place the cursor

key to set a desired value, and then push the “Update”

button to confirm.
・ When you select “STOP+CONT.”, measurement data can not be recorded on a CF card.

In addition, DZ (Digital Zero) is disabled during continuous measurement.
Caution・ When you set a wait time of 0 seconds, a measurement completed output signal is turned

ON for about 0.5 milliseconds.

Note:- 35 -

◇ Stopping Continuous Measurement
Continuous measurement can be stopped in the following ways:
・ Turn OFF the external measuring start/stop signal.
・ When the continuous measurement is started through the START button, push the START button again.

◇ Switching to a Different Work Number during Continuous Measurement
When you select “STOP+CONT.”, you can switch to a different work number for each measuring time.
A work number is checked on completion of measurement (when the measuring time expires). Therefore, the next
work number needs to be determined at least 0.1 seconds before the present measurement is completed. Whenswitching to a different work number and performing continuous measurement, set “STOP + CONT.” in all work
numbers which you want to use.

◇ Judgment Result Display and Completed Signal
・ When HOLD is PEAK or INF.PNT, too short wait time does not allow for enough time to check judgment result ofheld values on the screen. After judgment result is displayed, the next measurement may be started immediately.
・ During continuous measurement, judgment completed signal (if the judgment condition is true) and measurement
completed signal are turned ON for each measuring time. When you set a wait time of 0 seconds, a completed
signal is turned ON for about 0.5 milliseconds.

Example of continuous measurement when constant judgment is enabled, measuring time is 5 seconds, wait time is 2 seconds, and HI/LO limits is enabled

LoadFirst Measurement Data

Wait Time

Next Measurement Data

5 seconds

2 seconds

5 seconds

HI

HI

LO

LO

Time

External judgment reset (IN)
Measuring start/stop (IN)HI judgment (OUT)
GO judgment (OUT)

LO judgment (OUT)
Measurement completed (OUT)- 36 -

7-2-3 Measuring Time Settings
Set the maximum measuring time.
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“MEAS. TIME.”COMMON : The measuring time which is set by selecting”SETTINGS”→“DETAIL SET”→“SENSOR CAL.”→“TIME” fromthe TOP screen is applied.
BY WORK: The measuring time which is set by using the “SETTINGS” button in
the Measuring time screen is applied. Select when you want to seta measuring time on a work-by-work basis.
Measuring time screen

Select “SETTINGS” in the Measuring time screen to set a measuring time forthis work. The measuring time set here is applied when “BY WORK” isselected.

You can set a measuring time between 0.1 and 99.9 seconds.
Set values by using theMeas. time (BY WORK) screen

key to place the cursor over a digit you

want to change, and using the

key to set a desired value, and thenpush the “Update” button to confirm.

7-2-4 Setting Hold Conditions
Select how load values are held during a measuring period and specify the settings.
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“HOLD SET.”NONE : Tracking display without peak or other hold.
SAMPLE : Holds the load value when an external “Hold Command” signal isturned ON during a measuring period. If a signal makes acontinuous ON/OFF transition during a measuring period, the load
value at the first ON transition is held.
PEAK : Holds the maximum load value obtained during a measuring period.
Hold settings screen

INF.PNT : Captures an inflection point of load values during a measuring period
and hold the load value at the moment.
MAX, MIN : According to the conditions set by choosing “MAX, MIN” on theHold settings screen, when the difference between the peak andvalley loads multiplied by the scaling factor exceeds the predefinedlevel, holds the value at the peak as the maximum value and thevalue at the valley as the minimum value.

- 37 -

7-2-4-1 Sample Hold
Holds the load value at a certain point when the hold command signal (external A5 signal pin) is turned ON during ameasuring period.
The limits are set as discussed in “7-2-5 Setting the Load Limits.”
Compares the held load value against the HI LO limits and HI_HI LO_LO limits and outputs the judgment result.
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“HOLD SET.”→“SAMPLE.”
Control timing example of sample hold

Sample hold
Load value

Load sensor input value

Load indicated value

Time
Measuring start/stop (IN)
TRUE

Measuring start condition true
(Internal settings)

TRUE

Measuring stop condition true
(Internal settings)

Hold command
t5
off
on

Judgment output

offon(During sample hold)

t1

off

Measurement completed (OUT)ont2

CF card recordingt3 Measuring period(CF card recording period)t4

t1: A delay time between the moment when the measuring start input is detected and themoment when the load indicated values and internal data hold are released and judgment
output and measurement completed signal are turned OFF. 1ms (MAX)t2: A delay time between the moment when the hold command is entered and the moment when theindicated values and internal data are held, or between the moment when the measurement iscompleted and the moment when judgment output and judgment completed output are validated.
1ms (MAX)t3: Measuring period, up to a maximum of 99.9 seconds (depending on the measuring time
settings (horizontal axis))
t4: CF card recording time, up to a maximum of 20 seconds (measuring time: 99.9 seconds)
t5: External hold signal input time

10ms (MIN)- 38 -

7-2-4-2 Peak Hold
Holds the maximum load value obtained during a measuring period.
Compares the peak held load value against the HI LO limits and HI_HI LO_LO limits and outputs the judgment result.
The limits are set as discussed in “7-2-5 Setting the Load Limits.”
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“HOLD SET.”→“PEAK.”

Peak holdControl timing example of peak hold

Load value

Load indicated value

Load sensor input value

Time
Load peak point
Measuring start/stop (IN)offon

Judgment output

on

off

Judgment completed (OUT)

on

t1

t2
off

Measurement completed (OUT)on

CF card recordingt3 Measuring period (CF card recording period)t4

t1：A delay time between the moment when the measuring start input is detected and themoment when the load indicated values and internal data hold are released and judgment
output and measurement completed signal are turned OFF. 1ms (MAX)t2：A delay time between the moment when the measurement is completed and the moment when
judgment output and judgment completed output are validated. 1ms (MAX)t3：Measuring period, up to a maximum of 99.9 seconds (depending on the measuring time
settings (horizontal axis))t4：CF card recording time, up to a maximum of 20 seconds (measuring time: 99.9 seconds)- 39 -

7-2-4-3 Inflection Point Hold
Captures the change of the slope of the load value during a measuring period and holds the value.
Compares the load value held at the inflection point against the HI LO limits and HI_HI LO_LO limits and outputs the
judgment result.
The limits are set as discussed in “7-2-5 Setting the Load Limits.”
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“HOLD SET.”→“INF.PNT.”

Control timing example of inflection point

Load sensor input value

Load value

Inflection point hold

Load indicated valueTime
Detection of
inflection point
Measuring start/stop (IN)offon

Judgment output

on

off

Judgment completed (OUT)

on

t1

t2
off

Measurement completed (OUT)on

CF card recordingt3

Measuring period (CF card recording period)t4

t1: A delay time between the moment when the measuring start input is detected and themoment when the load indicated values and internal data hold are released and judgment
output and measurement completed signal are turned OFF. 1ms (MAX)t2: A delay time between the moment when the measurement is completed and the moment when
judgment output and judgment completed output are validated. 1ms (MAX)t3: Measuring period, up to a maximum of 99.9 seconds (depending on the measuring time
t4: CF card recording time, up to a maximum of 20 seconds (measuring time: 99.9 seconds)- 40 -

◇ Detection of Inflection Point

In the Inflection point screen, set the load difference E, detection time A,
detection time B and detection start load value.

START : Set a start load value from which the inflection point detection isstarted.
When the measuring start conditions are met and the load value
Inflection point screen

exceeds the detection start load value, the inflection point hold isstarted.
A : Set the detection time A, specified in hours.
B : Set the detection time B.
DIFF : Set the difference (D) between the load changes.

Set values by selecting an item (“A” is selected in the figure on the left), using
thekey to place the cursor over a digit you want to change, andusing thekey to set a desired value, and then push the “Update”

button to confirm.

Let C be load change in detection time A and E be load change
in detection time B. When subtracting C from E, if thedifference (D) exceeds the value specified in “DIFF”, point a isＥａＤ

held as the inflection point.

Ｃ’

The inflection point is normally detected with A = B, but it may

Ｃeasily be detected with A < B where the slope is gradual.

Detection startload value
Detection interval B
Detection interval A- 41 -

7-2-4-4 Maximum/Minimum Value Hold
Holds the load value at the moment when the maximum or minimum value is attained during a measuring period.
Compares the held load value against the HI LO limits and HI_HI LO_LO limits and outputs the judgment result.
The limits are set as discussed in “7-2-5 Setting the Load Limits.”
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“HOLD SET.”→“MAX, MIN.”

Select “MAXIMUM” to set the maximum hold mode, or “MINIMUM” to set theminimum hold mode.

Maximum, Minimum select screen
Control timing example of maximum/minimum value hold

Load value

Maximum/minimum hold

Load sensor
input value
Internal load value

Time
Maximum
Minimumload value load point
Measuring start/stop (IN)offon

Judgment output

on

off

Judgment completed (OUT)

on

t1

t2
off

Measurement completed (OUT)on

CF card recordingt3

Measuring period (CF card recording period)t4

t1: A delay time between the moment when the measuring start input is detected and themoment when the load indicated values and internal data hold are released and judgment
output and measurement completed signal are turned OFF. 1ms (MAX)t2: A delay time between the moment when the measurement is completed and the moment when
judgment output and judgment completed output are validated. 1ms (MAX)t3: Measuring period, up to a maximum of 99.9 seconds
t4: CF card recording time, up to a maximum of 20 seconds (measuring time: 99.9 seconds)- 42 -

◇ Maximum and Minimum Settings
When you select the “Max, Min” button on the Hold settings screen, the Maximum, Minimum select screen isdisplayed.

Select “MAXIMUM” to set the maximum hold mode, or “MINIMUM” to set theminimum hold mode.
Then, determine the following settings.

Maximum, Minimum select screen

DIFF : Set the difference between the maximum and minimum load values.

× : Enter the detection condition for the maximum and minimum values,
specified as a scaling factor.

Set values by selecting “DIFF” or “X” (“DIFF” is selected in the figure on the left),using theMaximum, Minimum screen

key to place the cursor over a digit you want to change,

and using the

key to set a desired value, and then push the“Update” button to confirm.

Detection of the Maximum and Minimum Values
When the maximum and minimum values are detected and the difference
exceeds the product of “Diff” and “×”, point A is held in the maximum value
hold and point B is held in the minimum value hold.

ScalingfactorA
DifferenceB- 43 -

7-2-5 Setting the Load Limits
Criteria for comparison and judgment can be set for load values (HI/LO and HI_HI/LO_LO limits) on a work-by-workbasis. Comparison and judgment are performed against values held under each hold condition.

From the TOP screen, select “SETTINGS”→“DETAIL SET”→“WORK” →”Work No.” (1 to 16)→“CRITERION.”NONE : No comparison and judgment are performed.
LOAD : Comparison and judgment are performed for a load value at the
moment of being held.
Criterion Select screen◇ Setting the Limits
Load detection function allows you to specify HI/LO limits and HI_HI/LO_LO limits. For HI_HI/LO_LO limits, youhave the option of enabling or disabling it. In the HYSTERESIS SETTING screen, you can set the width ofhysteresis.

In the Criterion settings screen, select “LOAD”→“SETTINGS” to set the HI
LO limit, HI_HI LO_LO limit, and HYSTERESIS SETTING.

Load detection screen
Load HI LO limit screen
Set values by selecting “HI” or “LO” (“HI” is selected in the figure on the left),using thekey to place the cursor over a digit you want tochange, and using the

key to set a desired value, and thenpush the “Update” button to confirm.

Load HI LO limit screen

・ Comparison and judgment conditions
HI or HH

ON condition: indicated value > HI or HH limit value

LO or LL

ON condition: indicated value < LO or LL limit value

・ Setting conditions for each limit value
LL limit value ≤ LO limit value ≤ HI limit value ≤ HH limit value
Load HI_HI LO_LO screen
HH and LL limit values can be disabled when not used.

Select “SETIINGS” to set HH and LL limit values in the same manner as HI
and LO limit values.

Load HI_HI LO_LO screen- 44 -

HYSTERESIS SETTING screen
When constant judgment is enabled, the hysteresis function for judging
against HI and LO limit values and HH and LL limit values becomes effective.
Set a hysteresis value by using the

key to place the cursor overa digit you want to change, and using the

key to set a desired

value, and then push the “Update” button to confirm.
Load HI LO limit screen
When constant judgment is enabled in the Load sensor
screen, the hysteresis function becomes effective.
CautionWhen you set a value other than 0.0 in “HYS”, the hysteresis function becomes effective.
・ Once the HI judgment output becomes ON, the state continues until a measured load value falls below a value
obtained by subtracting the hysteresis value from the HI limit value.
・ Once the LO judgment output becomes ON, the state continues until a measured load value exceeds a value
obtained by adding the hysteresis value to the LO limit value.
HH judgment and LL judgment function similarly.
A hysteresis setting value is common to all load limit values.
If a hysteresis value is large, for example, so that a value obtained by subtracting the hysteresis value from the HI limit
value overlaps the LO limit value, a judgment result based on the HI and LO limit values takes precedence over a
judgment result in which a hysteresis value is considered.

◇ Shortcut to load HI and LO limit value setting
To set load HI and LO limit values, usually access the TOP screen → “SETTINGS”→“DETAIL SET”→“WORK” →“Work No.” (1 to 16)→“CRITERION”→“LOAD” - “SET.” Alternatively, you can use“SETTINGS” →“HI LO LIMIT” as a shortcut.
The load HI and LO limit values set in this screen apply to the settings made on
a work-by-work basis.

Set values by selecting an item (“WORK” is selected in the figure on the left),using theExample of HI LO Limit for load

key to place the cursor over a digit you want to change,

and using the

key to set a desired value, and then push the“Update” button to confirm.

7-2-6 Measuring Display Settings
Set the measuring display conditions.
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“WORK” →“Work No.”(1 to 16)→“MEAS. DISP.”COMMON: The graph and grid settings defined bychoosing ”SETTINGS”→“DETAIL SET”→“VIEW” from TOP
screen is applied.
BY WORK: The measuring display set by using the “SETTINGS” button in the
Meas. display screen is applied. Select when you want to set themeasuring display conditions on a work-by-work basis.
Meas. display screen- 45 -

From the “Meas. display” screen, select “SETTINGS.”
In the “Meas.display (BY WORK)” screen, set the measuring display conditions(“GRAPH SET.”, “GRID”, “GRAPH DISP.”, “ANALYSIS”) for this work.

Meas.display (BY WORK)
7-2-6-1 Graph Range Settings
From the Meas. display (COMMON) screen, select “GRAPH SET.”
Set the graph range.
X1 : Set the plot start time along the horizontal axis. In most cases, enter
0.0 s.
X2 : Set the plot stop time along the horizontal axis. In most cases, enter
the measuring time.
Y1 : Set the plot value along the load axis. In most cases, enter “0.”Y2 : Set the maximum plot value along the load axis. In most cases, enter
the maximum load value of the load sensor.

Graph range screen

Set values by selecting an axis (X1, X2, Y1, Y2), using the

key toplace the cursor over a digit you want to change, and using the
key to set a desired value, and then push the “Update” button to confirm.
Signs are set by moving to the leftmost position and using thekey (Y1, Y2).
7-2-6-2 Grid Settings
From the Meas. display (COMMON) screen, select “GRID.”The Grid setting screen allows you to specify whether or not to display gridlines.
NOT DISPLAY: Grid lines are not displayed on graph screens.
DISPLAY: Grid lines are displayed on graph screens.

Grid settings screen
Select “SETTINGS” to set grid values.
X : Grid lines are plotted along the X axis which you set in “Graph
range. ”When you select “Time” as the horizontal axis, about 1/5 to 1/10of the time setting is suggested.
Y : Grid lines are plotted along the Y axis which you set in “Graph range.”
About 1/5 to 1/10 of the maximum plot value is suggested.
Grid settings screen
Set values by selecting an axis (X, Y), using the
cursor over a digit you want to change, and using thedesired value, and then push the “Update” button to confirm.

- 46 -

key to place thekey to set a

7-2-6-3 Measuring Display Settings from the Graph Screen
When you push the TIME mark on the Graph screen, a shortcut to the Meas. Display screen is provided.
This shortcut allows you to change the display range or grids directly from the Graph screen.

When you push the TIME mark on the Graph screen, a shortcut to the Meas.
Display screen is provided.
TIME markGraph screen

Even when the settings are changed from this screen, the measurement data is
not discarded.
When “COMMON” is selected, the common settings are changed.
When “BY WORK” is selected, settings by work are changed.
The figure on the left is displayed when “COMMON” is selected.

Meas. display (COMMON) screenNote:- 47 -

8. CF (Compact Flash) Settings
The CF screen allows you to determine settings for storing onto a compact
flash card.
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“CF.”When recorded data is stored, the filename (if date is set) andtimestamp are generated based on the system clock. Make
sure that the system clock is accurate.
CautionCF screen
8-1 Auto Store and Capture Settings
From the CF screen, select “AUTO STORE.”
Specify whether recorded data is automatically stored (“VALID”) on a CF cardor not (“INVALID.”)

INVALID : Recorded data is manually stored.
VALID: Data recorded from measuring start to stop is automaticallystored onto a CF card once the measurement is stopped.

CF auto storing screen

When you select “VALID”, select “SETTINGS” next to “VALID” and specify
whether previous data is overwritten (“VALID”) or not (“INVALID.”)

INVALID : Previous data is not overwritten.
VALID: Previous data is deleted so that approx. 10 MB of free capacity
is available when new data is stored or a CF card is inserted.
Data to be deleted is files which are of the same file format in

CF Overwrite setting screen

the recording working folder.
・ When the overwrite function is enabled, previous data is deleted and then new data is written

Cautionon completion of measurement. Wait awhile before starting the subsequent measurement.
In this case, format the CF
card.

・ Repeated write and deletion of data may cause slower access.

◇ Manually storing recorded data
When a CF card isinserted, a CF markis displayed.
To store on the CF
card, push the CF

TOP screen for manual storing

CF menu displayed

To manually store data recorded from measuring start to stop, begin by pushing the CF
display the CF screen.
- 48 -

mark on the screen toWhen you select “STORE”, the recorded data is stored on the CF card. Once the store has been finished, thefilename is displayed. Push “OK” to confirm.

Caution) The CF

mark is displayed to indicate that a CF card is inserted.

During the CF card is being accessed, the CF mark is shown inyellow.
Do not remove the CF card while accessing the card. Doing so
Caution may cause the CF card or files stored in the card to be damaged.

◇ Capture
To store a digital display screen or a graph display screen, begin by pushing theCFmark * on the screen to display

the CF menu.
When you select “CAPTURE”, the menu image is stored in the bitmap format on the CF card. Once the store has
been finished, the filename is displayed. Push “OK” to confirm.

The file is saved in the BMP format in a folder as follows:
Target directory: ¥BMP
Filename: MMDDnnnn.BMP
MM : Month
DD : Daynnnn : serial number, starting at 0001

8-2 Filename Settings
From the CF screen, select “FILE NAME.”
Select the format of files you want to store on a CF card.

DATE : Files are given a name of hhmmss (where hh, mm, and ss represent
the hour, minute, and second when the measurement was started,
respectively) and saved under a folder with a name of YYYYMMDD
CF file name screen(where YYYY, MM, and DD represent the year, month, and day
when the measurement was started, respectively).
Example: Under Work No. 1, measurement started on January 03,
2008 at 12:54:16\WORK1\20080103\125416.CSV
COUNT : Files are named sequentially beginning with TD0001 and saved
under a folder which is named sequentially beginning with TD001.
Example: Under Work No. 2, the first file to be recorded\WORK2\TD001\TD0001.CSV

When you select “COUNT”, one folder can contain a maximum of 5,000 files. Subsequent files are saved under aspecific folder with the number incremented by one every 5000 files and again are named sequentially beginning with
TD0001.

- 49 -Example: If 6000 files are recorded under Work No. 2, the files are saved under two different folders as follows:stth
1 to 5000 files¥WORK2¥TD001¥TD0001.CSV to TD5000.CSV

stth5001 to 6000 files¥WORK2¥TD002¥TD0001.CSV to TD1000.CSV

If more than one measurement was performed in one second or less, select“COUNT.” If you select “DATE”, files with the same date and time are not
Cautionsaved.

8-3 Remaining Alert and Limit Settings
From the CF screen, select “REMAIN ALERT.”The CF remaining alert screen allows you to select whether or not an alert isissued before the CF card is full and, if you select that such an alert is issued,
to define when the alert is issued.

INVALID : Alert is not issued.
VALID : Alert is issued.
CF remaining alert screen

When you select “VALID”, select “SETTINGS” next to “VALID” and then define
the minimum remaining capacity below which an alert is issued.

Set values by using the

key to place the cursor over a digit you

want to change, and using the

key to set a desired size (MB), andthen push the “Update” button to confirm.
CF remaining alert screen◇ Remaining capacity alert
When the remaining capacity of your CF card falls below the specified size,
an indication of how much capacity remains on the card is given.

CF remaining alert
CF remaining alert displayed

Even after the capacity of your CF card falls below the predefined size, you can save additional
files. However, if your CF card is full, you can no longer save files and an alert is issued to
Cautionindicate that there is no capacity left on the CF card.

Files are saved until the CF card is full. Even after the CF card is full, measurement can be still performed.
However, files can be no longer saved.
In this case, use another new CF card or erase the files stored on the CF card or format the card (refer to Section
8-8).
- 50 -

8-4 Decimation
From the CF screen, select “Decimation.”
This function allows you to decimate measurement data and then store thereduced data on a CF card.
Before performing measurements, set 2 k, 1 k, 500 Hz, 200 Hz, 100Hz, or 10
Hz. Data with a specified sampling rate will be written.
The actual sampling rate is 2 k. When you specify not to decimate data,
select “2 k.”
Decimation screen
8-5 Saving a Setup File
From the CF screen, select “SAVE SETTING.”

Various setting information of TD-275T is saved in a setup file (TD-CNF.PRM)
on a CF card.
Filename: TD_CNF.PRM
Target directory: ¥(root directory)

CF Save settings screen
When you push “Save” button on the CF Save settings screen, a confirmation
dialog is displayed asking whether to continue. Push the “OK” button to savethe setup file.
If the setup file already exists, a confirmation dialog is displayed asking whether
to overwrite the file. Push the “OK” button to overwrite the file.
Any existing setup file is renamed to TD_CNF.BAK. If the TD_CNF.BAK file
Save confirmation

already exists, the existing file is deleted.
Once the setup file has been saved, the filename (TD_CNF.PRM) is displayed.
Push “OK” to confirm.

Settings saved- 51 -

8-6 Loading a Setup File
From the CF screen, select ”LOAD SETTING.”

You can load the setup file from the CF card and change the settings.
Filename: TD_CNF.PRM
Target directory: ¥(root directory)

CF Load settings screen

When you push the “Load” button on the CF Load settings screen, theinformation about the setup file is displayed. Push the “OK” button to readthe setup file.

Load confirmation

Once the setup file has been read, the filename (TD_CNF.PRM) is displayed.
Push “OK” to confirm.

Settings loaded◇ Cautions when loading settings
・ The sensor calibration values in TD-275T are not changed.
After determining the settings for sensor calibration, load the settings.
・ It is recommended to use a setup file with the same version of firmware currently installed in
TD-275T. Using firmware with a different version can lead to errors because of the differencein specifications.
Caution・ If the number of digits after the decimal point used to display load values is different from thatused in the setup file, errors will occur.
・ After the setup file is loaded, check the settings of TD-275T.
・ If the setup file fails to be loaded, the settings are not changed.
・ Do not edit the setup file.

- 52 -

8-7 Installing and Removing a CF Card
◇ Installing a CF carda) Open the CF card slot cover on the front panel.
b) Insert a CF card into the CF card slot.
c) Make sure that the LED indicator, located to the right of the CF card slot, goes up.
d) Close the CF card slot cover on the front panel.

When a CF card is recognized by TD-275T, a CF mark is displayed on the screen.

When a CF card isinserted, a CF markis displayed.

CF mark displayed

CautionWhen you insert a CF card, 16 folders (WORK1 to WORK16) are created under theroot directory of the CF card.

◇ Removing a CF Carda) Push the CF mark to display the CF MENU.

Touch the CF markto display the CFMENU.

CF mark displayed

CF MENU displayedb) Select “EJECT” on the CF MENU.
c) Open the CF card slot cover on the front panel.
d) Make sure that the LED indicator, located to the right of the CF card slot, is off.
e) Push the eject button, located to the left of the CF card slot, gently to remove the CF card.
h) Close the CF card slot cover on the front panel.

During the CF card is being accessed, the CF mark is shown inyellow.
Do not remove the CF card while accessing the card.
Caution

Doing so may cause the CF card or files stored in the card to bedamaged.

- 53 -

8-8 File Erase and Format
TD-275T supports a CF card formatted with FAT16 and FAT32.
FAT32 is recommended.
Before using a CF card with TD-275T, format it on your PC.

To erase files stored on the CF card or format the CF card, use your PC.
You can not erase files stored on the CF or format the CF card directly from TD-275T.
If the CF card is full, use another new CF card or erase the files stored on the CF card or format the card.

8-9 Recorded Data Format
Files are stored on a CF card in CSV format.
A file consists of header and data sections.
◇

Header section
The header section contains measurement date, work No., judgment result, hold settings, judgment status, andother configuration information.

◇

Data section
The data section contains load data.

Data recording sample
Data format version[TD FMT01.00]
measurement date,2008.05.22 15:57:10

work

,1

Judgment result,HH

Measurement date
Work No.
Judgment result

hold settings,peak

Hold settings,Load[kN]
Header section,101.9hold position,14161
Hold data position

Judgment condition

,Load

U

,70

L

,30

UU

,100

LL

,0

,Load[kN]
Judgment conditions

Data beginning mark[data]
Number of Data
Load[kN]
Data section

Number of data
,20000
Load [Unit]

0
0

Data

・
・
・

- 54 -

9. System Settings
The System settings screen allows you to determine settings for the backlight and contrast of the LCD, the backlight timer,
check of external IN/OUT signals, the clock, the system information, the buzzer, key lock, system reboot, and optional board(if installed).

From the TOP screen, select “SETTINGS”→”DETAIL SET”→“SYSTEM.”
Pushing

on the System settings 1 screen advances to the System settings 2 screen and pushingon the Systemsettings 2 screen returns to the System settings 1 screen.

System settings 1 screen

System settings 2 screen

9-1 LCD Settings
From the System settings 1 screen, select “LCD.”
Adjust the brightness and contrast of the LCD.
The optimal values are factory pre-set, however you may need to change thevalues according to the ambient temperature. In this case, set the brightness andcontrast as appropriate, and then push the “APPLY” button to confirm.
LCD screen
9-2 IN/OUT (IN/OUT check)
From the System settings 1 screen, select “IN/OUT.”
The IN/OUT check screen allows you to check whether the externally connected
input signals are ON or OFF, and to turn the output signals ON or OFF, regardlessof the status given from the indicator, and check the connections easily.

IN/OUT check screen◇ IN (Input check)
From the IN/OUT check screen, select “INPUT.”
You can check the status of the externally connected input signals.
When an input signal is turned on, the signal will have a status of “ON.”IN check screen- 55 -◇ OUT (Output check)
The Out check screen allows you to turn the contact outputs ON or OFF, regardless of the status given from theindicator, and check the connections easily.

From the IN/OUT check screen, select “OUTPUT.”The Out check screen allows you to turn each contact output of status signals,
load comparison ON/OFF. Therefore, TD-275T in combination with theconnected system can be checked.

OUT check screen

Load (Contact) check screen

Status (Contact) check screen

You can turn a signal output ON or OFF by pushing the ON or OFF button next to the output.

9-3 Initializing Settings
From the System settings 1 screen, select “INITIALIZE.”This function is used to reset various settings of TD-275T to their defaults.

System initialize screen

Push the “INITIALIZE” button on the System initialize screen and then push the“OK” button to initialize the system.

System initialize screen- 56 -

9-4 Backlight Off Timer Settings
From the System settings 1 screen, select “BACKLIGHT.”
Specify whether or not you should set a timer for your screen backlight so thatyour LCD screen becomes dark when a specified time is elapsed after nooperation takes place on the touch panel.
INVALID : Disable the backlight off timer.
VALID : Enable the backlight off timer.
Backlight off timer screen

Select "SETTINGS” next to “VALID” to set time.
You can set, in steps of one minute, to a maximum of 999 minutes.

Set values by using the

key to place the cursor over a digit you

want to change, and using the

key to set a desired time, and thenpush the “Update” button to confirm.
Backlight off timer screen

9-5 Clock Settings
From the System settings 1 screen, select “CLOCK.”
Set the system clock. This clock function is used to indicate
the name (date) and timestamp of files, which are stored on a CF card.
If necessary, use the function to adjust the system time.

When the “Update” button is pushed, a cursor should appear. Set values by
Clock settings screen

using thekey to place the cursor over a digit you want to change,

and using the

key to set the present date (year.month.day) andtime values, and then push the “Update” button to confirm.

・ The clock is backup with an embedded battery.

When you need to replace the battery, contact your local office orservice representative.

9-6 System Information
From the System settings 2 screen, select "SYSTEM INFO."
This should display various version and configuration information for your
TD-275T.
When you contact us for help, you may need to provide the system information.

System information screen- 57 -

9-7 Buzzer Settings
From the System settings 2 screen, select “BUZZER.”
Specify whether or not the buzzer sounds when pushing on the touch panel.
INVALID : The buzzer does not sound.
VALID : The buzzer sounds.

Buzzer settings screen
9-8 LANG (言語)
Select which language you want to use: Japanese or English.
日本語 : Screen text is displayed in Japanese.
ENGLISH : Screen text is displayed in English.

Language select screen
9-9 Key Lock SelectThe Key lock select screen allows you to prevent changes in the settings on theWork settings screen, the Sensor calibration screen, and the Sensor settings
screen.
WORK SET. : Prevents changes in the settings on the Work settings screen.
SENSOR CAL. : Prevents changes in the settings on the Sensor calibration
screen.
SENSOR SET. : Prevents changes in the settings on the Sensor settings
Key lock select screen

screen.

Caution: Key locked settings are prevented from being modified, but are allowed to be displayed.

9-10 Reboot
When this button is pushed, the system is rebooted.
When you select “REBOOT” on the System settings 2 screen, a confirmation dialog is displayed
a confirmation dialog is displayed asking whether to reboot the system.
Select “OK” to reboot the system or “Cancel” to cancel the operation.
A few seconds after you select “OK”, a system reboot will start and the reboot screen will open.

System reboot screen

System reboot confirmation- 58 -

10. Settings When an Optional Board Is Installed◇ Option settings
The option settings are enabled only when an optional board is installed in the option slot provided on the back of
TD-275T.

Select “SETTINGS”→”DETAIL SET”→“SYSTEM.” When an optional board is installed, a button for setting theoption appears.

Example: when a D/A converter is installed
Displayed whenan optional board
is installed

System screen

10-1 Setting D/A Converter
This function applies to a device with an optional D/A converter installed.
This D/A converter is provided to obtain an analog output which is linked with indicated values from the indicator.
The analog output has a range of 0 to ±10 V for voltage output or from 4 to 20 mA for current output.
For any digital value you have set with the D/A zero setting and the D/A full scale setting functions, you can obtain an
analog output of zero (0 V, 4 mA) to full scale (±10 V, 20 mA).
The D/A output circuit and the main circuit are isolated. The resolution is 1/±10000 for 0 to ±10 V and the conversion
rate is 500 times per second. The output has an over range of about +10%.
A current output of 4 mA corresponds to a voltage output of 0 V, and a current output of 20 mA corresponds to a voltage
output of 10 V.
Use a current output of 4 mA (0 V) to 20 mA (+10 V).
Current output and voltage output are not set independently to zero or full scale.
◇ DA Settings
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“SYSTEM”→“DA.”DA settings screen- 59 -

10-1-1 DA Output Adjustment
From the DA settings screen, select “ADJUST” to adjust DA output.
The DA output adjust screen allows you to set load values at DA zero and at
DA full scale.
Set values by selecting an item (“ZERO” is selected in the figure on the left),using thekey to place the cursor over a digit you want to change,

and using the

key to set a desired load value, and then push the“Update” button to confirm.

DA settings screen

Current output and voltage output are not set independently to zero or
full scale.
CautionUse a current output of 4 mA (0 V) to 20 mA (+10 V).

Setting Examples
Example 1
DA zeroDA full scale
Indicated

Example 2000.00DA zero100.00DA full scale

DA output

Indicated

Example 3
DA zero100.00DA full scale－100.00

DA full scale

Indicated

DA output

Indicated

DA output

100.0010V

020.00120.0010V

DA zero－10.0020.00
DA output

value

value

value

value

Example 4020.00120.00

－10V

10.00

:

:

:

:

:

:

:

000.000V

020.000V

020.00

0V

0.00

:

:

:

:

:

:

:

-100.00－10V-80.00－10V-80.00

10V-10.0010V(20mA)
5V(12mA)
0V(4mA)

10-1-2 Output Test
From the DA settings screen, select “TEST” to allow a DA output test.
A DA output test is performed by outputting any specified voltage (±10 V, ±5 V,
or 0 V) from the D/A converter.
Select the button representing the voltage you want to be output from the D/Aconverter (in this case, 0 V).

DA output test screen- 60 -

10-1-3 Voltage and Current Output Connections
・ Connect an external device (with a load resistance of 2 kΩ or more) to the "V"+ (plus) and the "V"- (minus) forvoltage output.
・ Connect an external device to the "I"+ (plus) and the "I"- (minus) for current output.

TD-275T←InsideOutside→++External device--

Load resistance
2 kΩ or more

Ｖ
GND

+

+

External device--

Load resistance350 Ω or lessＩ
GND

10-1-4 Resolution
The D/A converter provides a frequency of 1/±10000 for 0 to ±10 V and 1/10000 for 4 to 20 mA.

10-1-5 D/A Output Error
This is an overflow alert which is output only when a D/A option is provided.
The alert is issued when the DA output is +10 V higher and -10 V lower thanthe linear limits.
”RESET” will clear the alert.

Overflow alert
DA alert display

display- 61 -

10-2 Setting RS-232C Interface
This function applies to TD-275T with an optional RS-232C interface installed.
RS-232C interface is used to read out the indicated values or recorded data from TD-275T.
It is useful when connecting TD-275T with a computer, a process controller or a sequencer, etc. to perform tasks suchas control, aggregation, recording, etc.
The internal and external circuits are electrically isolated via a photocoupler.

◇ RS-232C Settings
From the TOP screen, select “SETTINGS”→”DETAIL SET”→“SYSTEM”→“RS-232C settings.”

RS-232C settings screen

10-2-1 Baud Rate Settings
From the RS-232 settings screen, select “Baud Rate” and set a communication
speed.
Available settings: 4800 bps, 9600 bps, 19200 bps, 38400 bps, 57600 bps, or
115200 bps.

Baud Rate Settings screen

10-2-2 Flow Control Setting
From the RS-232C settings screen, select "FLOW CONTROL” to set whether
or not hardware flow control is enabled.
Available settings: “NONE” or “RS/CS.”

Flow Control Screen- 62 -

10-2-3 Parity Settings
From the RS-232C settings screen, select “PARITY” to set a communication
error detection code.
Available settings: None, Odd, or Even.

Parity setting Screen

10-2-4 Communication Specifications◇ Standard
Signal level: Based on RS-232C

Transmitting distance : Approx. 10 m
Transmitting method: Asynchronous, Full duplex

Transmitting speed: 4800, 9600, 19200, 38400, 57600, 115200 bps

Bit configuration: Start bit 1
Character length 8 bit
Stop bit 1 bit
Parity none, odd, or even

Code

: ASCII

Flow control: none or RS/CS◇ Connector Pin Assignment

Adaptable plug: 25-pin D-sub connector (ex. JAE DB-25P-NR)
No.
1
2
3
4
5
6
7
8
9
10
11
12
13

OutputInput
Output
Input
Input

ＦＧ
ＴxＤ
ＲxＤ
ＲＴＳ
ＣＴＳ
DSR
ＳＧ

No.
14
15
16
17
18
19
20
21
22
23
24
25

- 63 -

OutputＤＴＲ◇ Cable connection sample

Cross cable connection sample
D-Sub

D-Sub

RS-232C

9-pin

25-pinoptionfemale

male

8

4

RTS

7

5

CTS

2

2

TxD

3

3

RxD

4

6

DSR

5

7

SG

6

20

DTR

1

8

NC

9

1

FG

SHELL

SHELL

Note:

- 64 -

10-2-5 Communication Format
Request is a command sent from a host computer to TD-275T and Response is data sent from TD-275T to a hostcomputer. All characters are ASCII, except [CR] and [LF].
([CR]:Carriage Return (0x0D)､[LF]:LineFeed (0x0A))

RequestResponse

S C A NC 1 CRLF#- 1 2 3 . 4

CR

LF

・・・

10-2-6 Control Commands
Communication conditions are set in the RS-232C settings screen (accessible from the System settings screen).
Caution: Control commands are entered, using uppercase or lowercase single-byte characters.
◇ HD command
Function: To acquire the model number, hardware version, and ROM version

Argument: noneDescription
The command sends the model number, hardware version, and ROM version.
◇ SCAN command
Function: To acquire the current value

Argument: frequency or STOP

Description
The command returns the current values at the specified frequency.
When you set the horizontal axis to “displacement”, load and displacement are returned.
When the settings screen is being displayed and when DZ (Digital Zero) or displacement adjustment is being
performed, no data is transmitted.
During the current value is transmitted, any commands other than HD and SCAN STOP are ignored.
Arguments

Transmission

Remarks

Frequency [Hz]C1 to C9

1 to 91 pitch (C1,C2,C3,…)

C10 to C100

10 to100

10 pitches (C10,C20,C30,…)

STOP

－

Stop the transmission

If no argument is taken, the current value is returned only once.
If STOP is taken as an argument, the transmission is stopped and * is returned.
Command examples
Example 1 SCAN C1Example 2 SCAN STOP
Data examples
Load only (7 letters + CR +LF)
# 12.3#-123.4
Load and displacement (Only TD-280T: 14 letters + CR +LF)#-123.4,- 12.3#

0.0, 123.4- 65 -

Communication speed
On a transmission of load and displacement, C54 or beyond requires a communication speed of 19200 bps or
more.
Processings when the transmission is stopped by flow control
When the transmit buffer has enough free space, the current value is written into the transmit buffer.
After the transmit buffer is full, the current value is not written into the transmit buffer.
Therefore, the number of data and the measuring time may be inconsistent.
About data transmission
The RS-232C controller has its built-in FIFO transmit/receive buffers and transmits data collectively for efficient
data transmission.
Transmission

Data to be transmitted [Sampling]frequency [Hz]Load only

Load and displacement(Only TD-280T)

1 to 10

1

20

2

30

3

40

4

2

50

5

3

60 to 100

63

In case of load only, 9 bytes/sampling
In case of load and displacement, 16 bytes/sampling (Only TD-280T)
If the transmission is stopped by flow control, a maximum of 2 K byte of consecutive data will be transmitted ona restart of transmission.

- 66 -

◇ TR_ACQ_DAT command
Function: To acquire the recorded data

Argument: noneData is transmitted as characters (ASCII)BIN Data is transmitted as binary (float)
BIN_S

Data is transmitted as binary (short)

Description
・ When no argument is specified, the recorded data is transmitted as characters.
Order in which data is transmitted
the number of data per line, the number of lines transmitted
Measurement data・・・*
When the number of data per line is 1, load is transmitted.
When the number of data per line is 2, load, followed by displacement, are transmitted (Only TD-280T).
When no measurement data is available, the number of lines transmitted is 0.
Command examples
TR_ACQ_DAT
Data examples
2,20000-123.4,- 12.3
・・・
200.1,- 50.3*
・ When BIN is taken as argument, the measurement data is transmitted as float (4 bytes).
Order in which data is transmitted
the number of data per line, the number of lines transmitted (character)
Measurement data (float)・・・* (character)・ When BIN_S is taken as argument, the measurement data is transmitted as short (2 bytes).
Order in which data is transmitted
the number of data per line, the number of lines transmitted, n, n (character; when the number of data perline is 1, a single “n” appears)
Measurement data (short)・・・* (character)
Caution: Measured value = Measurement data × 10n- 67 -

◇ VERBOSE command
Function: To set how the status is transmitted

Argument: Mode 0 or 1

Description
When Mode 0 is specified, !ACQ_START and !ACQ_END messages are not returned.
When Mode 1 is specified, !ACQ_START and !ACQ_END messages are returned.
When no argument is specified, the VERBOSE mode setting (0 or 1) and OK are returned.
Messages!ACQ_START: a message when the measurement is started.
!ACQ_END: a message when the measurement is ended.
The messages are transmitted each time the measurements are started or ended.
Command examples: When Mode 1 is specified
VERBOSE 1(Request)

OK(Response）◇ HOLD_POS command
Function: To acquire the hold position

Argument: noneDescription
The command returns the position of data which is held in the specified hold mode (i.e. the number of data fromthe beginning).
When no data is held, -1 is returned.
Get the measurement data using the TR_ACQ_DAT command.
The command has no effect during measurement is being performed.
◇ ACQ_START command
Function: To start the measurement

Argument: noneDescription
The command is effective only when the measurement screen is displayed.
When measurement is being performed, ERR-48 is returned.
Command examples
ACQ_START(Request)

OK(Response)◇ ACQ_END
Function: To end the measurement

Argument: noneDescription
The command is effective only when the measurement screen is displayed.
When no measurement is being performed, ERR -48 is returned.
Command examples
ACQ_END(Request)

OK(Response)- 68 -

◇ ACQ_RESET command
Function: To reset the measurement status

Argument: noneDescription
The command is effective only when the measurement screen is displayed.
The command is equivalent to pushing the RESET button on the screen where the measured values are
displayed.
Command examples
ACQ_RESET(Request)

OK(Response)◇ SET_DATE command
Function: To set the date and time

Argument:

Date and Time

Description
The command sets a specified date and time.
YYYY.MM.DD hh:mm:ss
・ YYYY : Year・ MM

: Month

・ DD

: Day

・ hh

: Hour・ mm: Minute

・ ss: Second

Command examples
SET_DATE 2008.10.01 01:30:00(Request)

OK(Response)

Caution: Do not attempt to set an irrelevant date and time, such as 15 month.
◇ GET_DATE command
Function: To acquire the date and time

Argument: noneDescription
The command returns the current date and time.
For the format of argument, refer to the SET_DATE command.
Command examples
GET_DATE(Request)

2009.10.01 01:30:00(Response)

OK(Response)- 69 -

11. Overscale/Error Displays
This section describes overscales and errors which may be displayed on each screen.
11-1 Errors Related to Load Sensor
LOAD:
This error indicates that an input signal from the load sensor exceeds+3.0 mV. It also indicates that a sensor signal exceeds 3.0 mV/V. The
sensor and the cables require to be checked.
If you encounter this error during use of the system, possible causes
include an overload on the sensor, etc.
From the TOP screen, select “SETTINGS”→“DETAIL SET”→“VIEW”→“STRAIN” and then check an indicated value. If the indicated value
is larger than a rated output (4000 to 6000) of the connected sensor,
a failure may occur in the sensor.

−LOAD:
This error indicates that an output from the load sensor goes beyond thenegative limit value. The sensor and the cables require to be checked.
As in the LOAD error, select “STRAIN” so as to check an indicated value.
For possible causes, refer to the description of the LOAD error.

FuLL:
This alarm indicates that an overflow of a positive indicated value occurs.
For example, suppose that a sensor rated-output of 1.234 mV/V is set to anindicated value of 5000. If an input from the sensor goes beyond 2.468 mV/V,
the indicated value exceeds 9999, which causes the indicated value error“FuLL.”
This error relates to an indicated value. However, note that when
“FuLL”occurs, the sensor also is overloaded (i.e. an output from the sensor
exceeds the rated output).

-FuLL:
This alarm indicates that an overflow of a negative indicated value occurs.

- 70 -

11-2 Errors During Load Sensor Calibration◇ Errors during real load calibration
Input-range over error
This error shows that the signal from the sensor exceeds the input range(3 mV/V) of the indicator. This 3 mV/V includes the zero point of the sensor.

Input-range over error screen

Zero balance error
This error shows that during zero point measurement, the signal from thesensor is larger than ±2 mV/V. Check a zero balance value, and then adjust it
to 2 mV/V or less.

Zero balance error screen◇ Error during equivalent input calibration
Refer to the sensor data to enter the correct rated output. A rated output lager
than 3 mV/V is an input over and therefore cannot be set.

Input over error screen◇ Error during TEDS calibration
This error shows that a TEDS sensor is not connected to the indicator.
Check the connection between the sensor and the indicator. Further, makesure that a TEDS-capable sensor is used.

TEDS unconnected error screen- 71 -

12. Hardware Installation
Follow these steps to install the TD-275T inside a control panel.
1. Cut out the panel according to the dimensions in the panel cut-out drawing.

Recommended panel
thickness: 1.6 - 3.0 mm

2.Remove the two screws, and then remove the guide rails on the right and left sides.

Guide rail

ScrewsGuide rail

3.Push the TD-275T into the panel cut-out area from the front side of the panel.

4. Put the guide rails that were removed in Step 2, back in place from the rear side, and then secure them with the twoscrews.
( Recommended tightening torque: 0.6 ± 0.1 N ∙m [6 ± 1 kgf ∙ cm] )- 72 -

13. Specifications
Load Sensor Input
1) Input/Range: Strain gauge sensor

Input connector±3.0 mV/V: Screw connection-type terminal (pitch 5.08 mm, 12P)

2) Excitation Voltage: 2.5 V DC (±10%)/10 V DC (±10%)3) Calibration method: Equivalent Input/TEDS/Real Load

Calibration range

Current: 30 mA: 0.5 to 3.0 mV/V

Calibration Accuracy
4) Zero balancing: ≤0.1%F.S (excitation voltage = 10 V): 0 to ±2.0 mV/V

5) Accuracy Nonlinearity: ≤0.02%F.S±1 digit (excitation voltage = 10 V, Input ≥1.0 mV/V)

Zero drift: ≤0.5µV/ºC (Input conversion value)

Gain drift: ≤0.01%F.S/ºC (excitation voltage = 10 V, Input ≥1.0 mV/V): Selectable from 10, 30, 100 (default), 300 Hz

6) Analog filter

Low pass filter
7) A/D convertingrate8) TEDS function

Attenuation -6 dB/OCT: 2000 times per second

Quantization 16 bits

: IEEE 1451.4 Class 2 mix mode interface

9) Peak-hold function10) Analog output: Digital hold: Approx. 1.0 V (per sensor input 1.0 mV/V)

Note) F.S in this specification is about ±32768 (16 bit).
Common Section
1) Display/Operation: 3.5 inch STN color LCD model (320×240 dot)

Operation: Touch panel

Load display range: 0 to ±9999

Decimal point: Selectable display position

Display timing: 3 times/sec.

Time axis setting2) Indication items: 0.1 to 99.1 sec.
: Digital load value, Waveform, Setting, Distortion, etc.

3) Setting items
Comparison judgment value setting
Load
Hold function: HI/LO/HI-HI/LO-LO limit: Inflection point, Sample, Peak, Maximum value,
Minimum value

Other function settings: Analog/Digital filter, Digital zero, Measurement start/end conditions,
Graph setting, CF card setting, Minimum scale, etc.

Measurement work setting memory: Selectable 16 kinds (Comparison value judgment, Hold setting,
Measurement start/end conditions)

Clock function: Management and storage of data by a real-time clock4) Judgment output signal
Load
Point of contact: HI/LO/HI-HI/LO-LO limit, GO output, each “a” contact: Rating voltage: 30 V

Current: 50 mA

Insulation: Photocoupler5) Control input/output signal : Measurement Start/End, Sample Hold, Reset, Load Digital Zero,Work Select inputs; Measurement Completed, Judgment Completed outputs
Connector
Rated input signal: Multi-electrode connector (FCN-365P032-AU): Dry contact input (Contact, Transistor opening collector, etc.)
Outflow current: Approx. 10 mA

Output signal
Insulation
6) CF card

: Rated Voltage: 30 V

Current: 50 mA: Photocoupler: Saving data to CF card on CSV format.
Saving load data, their settings, judgment results, etc.
from start to stop, or from automatic start level to judgment output.
Supporting CF cards with capacities of 256 MB to 16 GB.

- 73 -

7) Options: Only one option can be installed (except CF card)
RS-232C: Signal level

RS-232C Conformity

Electrical transmission distanceStart/Stop synchronization, Full duplex

Transfer speed

4800/9600/19200/38400/57600/115200 bps

Bit pattern

D/A converter

Approx. 10m

Transfer method

Start bit

1 bit

Character length

8 bitsStop bit

1 bit

Parity bit

Selectable from Nothing/Odd number/Even number

Code

ASCII

: D/A Zero setting (For a digital value by full scale setting)
Voltage output 0 to ±10 V (Load ≥ 2 kohms)
Current output 4 to 20 mA (Load ≤ 350 ohms)
CAL function: 0 or 10 V cal signal, and 4 or 20 mA cal signal can be output
by operating the indicator, regardless of sensor input.

8) Power supply: 100 to 240 V ±10% 50 / 60Hz AC, Approx. 13 W

9) Ambient Temperature/Humidity
Temperature: Operation

0 to +40℃

Storage-20 to +60℃

Humidity10) Dimension (W×H×D): ≤85%RH (Non-condensing): Approx. 105 mm×108 mm×145.1 mm11) Weight: Approx. 1.05 kg

12) Accessories: Instruction Manual (CD-ROM)

1

Brief Instruction Manual1

Sensor input connector

1

Phoenix Contact MC1.5/12-STF-5.08
Control input/output connector/plug (FUJITSU)
Connector

FCN-361J032-AU

1

Cover

FCN-360C032-B

1

AC power cord

1

Safety standard

Installation class I, EN61010-1 Pollution degree 2 Overvoltage category II, CE marking

EMC

VCCI (Class A), EN61326 (Class A), EN61000-3-2, EN61000-3-3- 74 -

14. Dimensions
＋０．５
０

Panel
cutout dimensions
パネルカット寸法

９２ ＋０．５
０

（９９）

４
－
Ｒ

３
～
Ｒ
５

９２

※推奨板厚：１.６ｍｍ～３.０ｍｍ* Recommended
board thickness: 1.6 to 3.0 mm
２３.６

９１

１０８

（推奨板厚範囲以外は別途相談下さい。）(Pleaseconsult us regarding other baord thicknesses.)

SERIAL NO.
MADE IN JAPAN

２４.１(１７.５)（１２１）

９１

ＴＤ－２７５Ｔ

ＶＣＣＩラベル１０５

質量：１.０５ｋｇ（接続ケーブルを除く）