F820

HIGH-SPEC WEIGHING INDICATOR● RoHS-compliant product● High-performance filters to attenuate vibration● Store 100 sets (codes) of settings● High-speed sampling & high-resolution
It is equipped with A/D converter with sampling rate of 1200 times/sec.
and high-speed digital processor (sampling speed can be changed to300 times/sec. as well). Also, high display resolution of 1/10000 is
guaranteed in all input range.

● Measurement sequence function
Sequential control is possible without PLC and other external devices. By setting
various parameters and using various timers, you can configure sophisticatedweighing system.
‫ڦ‬Feed and discharge gate control
F820 has sequence control functions useful for direct control of feed or discharge
gate like auto feed adjustment in case the total weight is under the target weight.
‫ڦ‬Twin net weigher mode

Weighing process can be visualized.
Weighing system can be configured in shorter time while
keeping the top-class accuracy.

F820 is equipped with functions useful for twin net weigher (bagging machines)
such as "clamp" signal output, alternative discharge and so on.

Special software‫ڦ‬Visualization of weighing process‫ڦ‬Enlarged waveform display

Fluctuation of weight can be displayed and monitored in curves.
Since waveform and I/O status can be monitored at the same time, you can find out the cycle timeand check weight fluctuations when SP1, 2, CMP. signal turns ON/OFF.

You can select and zoom a section to check in zoom.
With the enlarged view, you can check if the weightreading is stable enough and if Set Points and thesampling rate are set properly.

Set points
Weighing set points aredisplayed (SP1, SP2…).
Indicated value(readings)
Readings indicatedon F820 controller isdisplayed.

Cursors
Display cursors and selectthe type of cursors(X and Y-axis readings aredisplayed).

Curve display
Fluctuation ofreadings can bedisplayed in curves.

Enlarged view

Start conditions
You can set start
conditions for drawing curves.

I/O timing chart
Timing chart for I/Os
is displayed.

‫ڦ‬Filter effectFilter settings can be changed, and the effect of filters
can be simulated on PC to check if noise and vibration
are effectively attenuated.

■Statistics
Cumulative weight is calculated. Statistic likemaximum, minimum, average (mean) weights
are also calculated and displayed in this mode.
StatusCodes/readings

Filter setting value‫ ڦ‬Logging
Simulation

Waveform display to monitor weightfluctuations over a long period of time
A maximum of 72 hours data recording

Measurement result

Setting value
Conditions for capturing waveforms
Statistical data‫ڦ‬Edit/save settings
Settings of F820 can be edited
and saved on PC (saved in CSV format).
It is convenient to save the settings
for backup and export it to other units.

Read-outWriting

Specifications
AnalogsectionExcitation voltageSignal input range
Zero adjustment range
Gain adjustment range
Minimum input sensitivity
Accuracy
A/D converter
Min. display resolution
Theoretical calibration
Filter

Display
sectionSetting
sectionExternal
signalInterface

5 Vdc±5％ Output current: within 90mA
Ratiometric method(Up to 6 load cells at 350Ω can be connected in parallel.)−0.5 to 3.0mV/V−0.2 to 2.0mV/V(automatic adjustment by digital computation)
0.3 〜 3.0mV/V(automatic adjustment by digital computation)
0.15μV/countNon-linearity：within 0.01％/FS
Zero drift：0.025μV/ΥRTI TypGain drift：1ppm/Υ Typ
Speed:1200, 300 times/sec. (selectable)
Resolution: 24bit (binary)
1/10000
equivalent input calibration (accuracy when theoreticalcalibration is performed at ambient: 1/1,000)

Generalperformance

Dimension

192(W)×96(H)×145(D)mm (Projections excluded)
Panel cutout size: 186(W)×92(H)mm
approx. 1.7kg

WeightAttachments

AC power cable (voltage resistance:125 Vac ) (2m) ・・・1, Load cell connector(JR connector) ・・・1, Connector rubber for load cells ・・・1, 57 series connector for
external input/output ・・・1, Mini screwdriver ・・・1, Operation manual ・・・1, BCD outputconnector (when BCO option is installed) ・・・1, D/A converter connector (when DACoption is installed) ・・・1, RS-485 connector (when 485 option is installed) ・・・1

Optional
accessories

CAAC3P-P2： AC power cable 2m
CAAC3P-CEE7/7-P1.5： AC power cable (voltage resistance: 250 Vac) 1.5m
CN3P-2P：3P-2P converter plug for AC input cord
CA4131：(6-wired)cable with JR connector at one end 3m
CA4230：JR-PRC (6-wired)conversion relay cable 0.3mCA4311：JR-PRC (6-wired)conversion relay cable (4-wired to 6-wired)(for 520A use)1m
CN10：Loadcell connector (JR connector)
CN21：BCD output connector
CN22：57 series 50p connector for external input/output
CN34：D-Sub 9p connector for RS-232
CN70：D/A converter connector

Low-pass filter：
When A/D conversion rate is 1200 times/sec: 6, 8, 10, 12, 16, or 20Hz (selectable)
When A/D conversion rate is 300 times/sec: 1.5, 2, 2.5, 3, 4, 5Hz (selectable)
Moving average filter： 1 to 512 times

Display unit

Main display: numerical display (7-digit) with a character heightof 18 mm by fluorescent display tube
Code (blend)：Character height 8mm, numerical display by
7-segment green LED (2-digit)
Weight display
5-digits (signs: minus sign on the highest numerical digit)
Display frequency
1, 2, 5, 10 and 20 times/sec (selectable)
Scale capacity
5-digit numerical values
Minimum scale division/increment
1 to 50(selectable)
Unit of measurement
NONE, g, kg, t, or lb (selectable)
Decimal place0, 0.0, 0.00, or 0.000 (selectable)
Over scale display LOAD (A/D converter input over),
OFL1; (Net weight > Net over set value) ,OFL2: (Gross weight >Capacity +9 scale divisions),
OFL3; (Gross weight > Gross over set value)
Center zerodisplay true zero point or the center of each value
Status display
CLAMP, SP3, SP2, SP1, HOLD, COMPL., ZT, ZALM, STAB,TARE, NET, GROSS, NZ, D.CHG, HI, GO, LO, HI LIM, LO LIM, LOCK

Model Constitution

F820①① Standard unit□②② Interface
SignInterface
Standard USBࠊSI/F↓ Optional interface can be addedin addition the standard interface.

232
BCODAC
485

Setting method : Can be edited with using membrane switches. Setting can be performed byexternal devices as well via USB, RS-232C and RS-485 interface and so on.
Setting value memory : Parameter, calibration and part of other settings are stored on NOV.RAM(non-volatile memory), and all other settings are stored on F.RAM(another non-volatile memory).
Setting value protection : Overwrite protection by "LOCK" switch
External output (16 points) Transistor open collector output. Isolation : photo coupler,Rated voltage : 30V, Maximum current : 120mA
External intput (24 points) The signal can be outputted by making short-circuit between
input and common terminal.
Isolation : photo coupler

RS-232CBCD output (Sink type)
D/A converter(Current output)
RS-485

There is an option board slot only for RS-232C.
1 function can be carried in addition to a standard.

Example of application
MasterSlave

F820

F820

・USB: USB interface
・SIF: 2-wire serial interface
・232: RS-232C communication interface (option)
・BCO: BCD parallel data output interface (option)
・DAC: D/A converter interface (option)
・485: RS-485 communication interface (Option)F820

ͤThere is a option board slot only for RS-232C. Another option interface (only one option) can be installed as well.

GeneralOperating voltage
performance Rush current

100 to 240 Vac 㸩10 㸫15% (50/60Hz)
2A, 1msec:AC100V average load condition(cold start at room temperature)ࠉ
4A, 1msec:AC200V average load condition(cold start at room temperature)
Power consumption 6W typ
Operating conditions Operation temperature range:㸫10 to 40Υ
Storage temperature range:㸫20 to 㸩85Υ
Humidity: 85㸣RH or less (non-condensing)Twin net weigher(bagging)

Discharge measurement

External dimensions（Front）（Side）（Rear）

Panel cutout size
Panel thickness 1.6〜3.2mm

Unit: mm