AUTOMATIC BALANCE RECORDERUNICORDER
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Specifications are subject to change without notice.

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1641-00-0001C

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CONTENTS
1. OVERVIEW......................................................................................................

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2. SPECIFICATIONS............................................................................................

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3. EXTERNAL VIEW............................................................................................

9ＰＡＮＴＯＳＣＯ．，ＬＴＤ1. OVERVIEWThe Unicorder U-1641 is a pen type recorder, provided with maximum 16 channels.
The input unit is a plug-in type.
2. SPECIFICATIONSBasic specifications
Model:

U-1641

Number of channels:

8 to 16

Operation method:

Automatic balancing system(digital servo system)

Type or input unit:

Plug-in type (2 channels for 1 unit)

Reference point:

Right end of chart paper ( Left end is also
possible by changing the setting.)

Recording
Recording Pens:

Felt-point pen (Recording Length approx.5km)

Effective recording width:

250 mmPen interval:

4 mm

Pen name:

NDL-＊＊

Accuracy:±0.25% of measurement accuracy and effective recording width including linearity anddead band.
（For measurement accuracy, refer to thespecification of input units.）

Maximum pen speed:

Approx. 1600 mm/s

Synchronizer:

ON, OFF 20 data/mm

Measurement ON/OFF:

Each channel independent

Chart paper:

Roll paper
No.25020P50 (50 m), No.2501P50 (20 m)

Chart speed:

10 to 2400 mm/min, /h
Set in 1 mm increments

Resolution of time axis:

0.05 mm

Sampling speed:

Max. 4 ms

Paper winding-up:

Equipped (option)

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Superimposed marker:

Operates by operation switch and external
remote controller
Link with ON/OFF of synchronizer.
Amplitude: approx. 10 mm
On time: approx. 50 ms

Auto pen cap:

Pen is automatically stored at the specified
position when power is OFF, measurement
is OFF and paper ends.

Printing
Printing method:

Wire dot-impact method, 5 x 7 dots

Ink ribbon:

Cassette type (black), model P1101

Printing speed:

Approx. 1.5 sec/line

Mode

Time

Status○Manual

○

Start

○

Chart speed

○

SYNC

○

Limiter○

Logging

○

Scale

○

Input
value

Range

SYNC

○

○

Limiter

Limiter
value

Chart
speed

Comment○

○

○
○

○
○

○
○
○
○

Status mode:

Prints the setting description
Range, SYNC ON or OFF, Limiter value andComment (Max. 60 characters, 3 types)

Manual mode:

Prints Time and Measurement value for allchannel

Start mode:

Prints Time, SYNC ON or OFF and Chart
speed

Chart speed mode:

Prints chart speed and Time after chart
speed was changed.

SYNC mode:

Prints Time when synchronizer is ON or
OFF and ON or OFF indication.

Limiter mode:

Prints Channel No. and ON or OFF time

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Logging mode:

Prints Time, Chart speed, Channel No.,
Measurement value and Unit at constant.
When logging mode is set to ON, printing ispossible even if the paper drive is stopped.

Chart speed

Printing interval

10 mm/sec or more

30 sec5 mm/sec to9 mm/sec

1 min

1 mm/sec to4 mm/sec

5 min

30 mm/min to 59 mm/min

10 min10 mm/min to 29 mm/min

30 min5 mm/min to9 mm/min

1 hour

1 mm/min to4 mm/min

2 hour

40 mm/hto 59 mm/h

3 hour

20 mm/hto 39 mm/h

6 hour10 mm/hto 19 mm/h

12 hour

Scale mode:

Prints the range scale when a fixedamount of chart paper is fed. Printing
interval varies according to chart speed.
Chart speed

Printing interval

40 mm/sec to 10 mm/sec

1200 mm

9 mm/sec to5 mm/sec

600 mm

4 mm/sec to 10 mm/sec

300 mm

Display section
Display:5" EL display, 320 x 256 dots

Display mode:(1) Range display
Simultaneous display for all channels(2) Digital measurement value display
6 digits (Mark, measurement data,decimal point)
Date, chart speed(3) Wave(4) AUX (optional screen)
Limiter, Chart feed trigger, Scaling(physical amount), Time, Tag name,Logging printing, Pen adjustment, Comment, Printing, IC card, and Floppy disk
(extra-cost option)Drawing NumberPage

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Limit switch (output is extra-cost option)
Number of level:

2 for each channel

Type:

Both upper and lower limit

Alarm:

The warning buzzer sounds if it exceeds thelimit value. With ON/OFF function.

Output (option):

2 contact points/ch, photo-MOS output
Max. 8 channels
Capacity of contact: DC 400 V, 0.1 A

Chart feed trigger
Remote mode:

Paper is fed by turning on the remote mode.

Trend:

No. of speeds: 3 (3 stages are set.)

Operation
Scaling:

Range: -10000 to +10000
Decimal point and unit are set arbitrarily

GP-IB interface (extra-cost option)
Standard:

Based on IEEE standard 488-1978

Mode:

Both input and output of setting value andmeasurement value

RS-232C interface (extra-cost option)
Standard:

Based on EIA RS-232C

Mode:

Both input and output of setting value andmeasurement value

Speed:

1.2K, 2.4K, 4.8K, 9.6K bps

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AmendmentIC memory card
Function:Set value

Capacity:

16 K bytes (8 files)

Mode1:

BS-16D1-A-262

Battery:

2016 series
When the battery is run out, the message"NO BATTERY" is displayed.
Battery life: 5 years or more (at 25℃, andstate that the battery isremoved from the mainframe.
The BR-2016 is used in thiscase.)

Floppy disk (extra-cost option)
Disk used:

3.5" 2HD

Format:MS-DOS

Data capacity:

1.2 M bytes (Approx. 500 K data)

External remote controller 1
Type of signal:

TTL level
Transistor switch
Contact signal

Following functions can be operated from the external devices: operation
panel and OR.
Chart paper feed:

Start-up and stop
Falling: start-up
Rising: stop(Not respond to signal of 3 ms or less)Chart paper rapid feed:

Start-up and stop (feed)
L: start-up
H: stop

Select of clock for

Select the external clock or internal clock.

chart-paper feed:

Chart paper can be fed in synchronization
with the external clock.
L: external
H: stop

External clock input:

50 μm/1 clock TTL
Max. frequency: 800 Hz
Min. pulse width: 10μs
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AmendmentWeight marker:

Simultaneously for all channels
L: ON

Chart paper feed:

Used when operating the units in parallel

Synchronous output:

1 clock / 50μm TTL

U-1641

U-1641synchronous

external clock input

output(Select of clock: L)

Manual printing:Prints the setting items for printing ON.
L:print

Mesurement ON/OFF:

Simultaneously for all channels
Falling: Measurement ON
Rising: Measurement OFF (Not respond tothe signal of 5 ms or less.)

External remote controller 2 (extra-cost option)
EXT. Chart speed 1EXT. Chart speed 2
Built-in clock
Accuracy:±4 seconds by day

Recording digit:

NN year NN month NN day NN hour
NN minute NN second

Back-up
Item:

Each setting, built-in clock

Battery:

Two lithium batteries, built in the body

Storing time:

Approx. 1 month (at 25℃)

Operation
Pen lift:

All pens move to the pen rest when thepower is turned OFF. (All pen simultaneousoperation type)Measurement ON/OFF switch
Measurement OFF -- Pen up -- Pen-rest(During this operation, pens other than theone that is in the measure OFF operation
does not move.)
Measurement ON -- Pen up -- Moves torecording position -- Pen down
(During this operation, pens other than theone that is in the measure ON operation
does not move.)

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Standard specification
Withstand voltage:

Between power supply and chassis (GND):
AC 1500 V, 1 minuteBetween analog input and chassis (GND):
AC 500 V, 1 minuteBetween each an analog input:
AC 500 V, 1 minuteInsulation resistance:

Between power supply and chassis (GND):
100 MΩ or more at DC 500 V Megger
Between I/O control and chassis (GND):
20 MΩ or more at DC 250 V Megger
Between analog input and chassis (GND):
100 MΩ or more at DC 500 V Megger

Operating environment:

Temperature 5 to 40℃, Humidity 35 to 80%RH

Storage environment:

Temperature -5 to 50℃, Humidity 35 to 80%RH

Vibration:

8 to 50 Hz 0.1G or less

Impact:Not allowable

Power supply:

90 to 132 VAC/ 170 to 265 V (Changeovermethod), 47 to 440 Hz
9 to 16 VDC (extra-cost option)

Power consumption:

Maximum
8 pens, 240 W
10 pens, 240 W
12 pens, 250 W
14 pens, 260 W
16 pens, 270 W
At balanced
8 pens, 150 W
10 pens, 155 W
12 pens, 160 W
14 pens, 165 W
16 pens, 170 W

Dimensions:

Approx. 438(W) x 290(H) x 520(D) mm

Weight8 ch: 18.0 kg
10 ch: 19.5 kg
12 ch: 21.0 kg
14 ch: 22.5 kg
16 ch: 24.0 kg(including AC voltage/temperature input unit)
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Accessories:
Power cable:

1

20 m chart paper #2501P50:

1

Ribbon cassette P1101:

1

IC card BS-16D1-A-261:

1

Pens (various colors) NDL-**:

1 eachDust cover:1

5A fuse (built-in type):

1

Input cover:1

Input cover stay:4

Dropping pipet:

1

Grounding adapter TM-100:

1

Remote connector 57-30360:

1

Instruction manual:1

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3. EXTERNAL VIEW

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