Product outline

The F741-C is a high-noise-resistant weighing indicator by which stable indicated values can be obtained. Compatible with a fieldbus (PROFIBUS), and serial and analog outputs, it can be combined with a wide variety of plant devices.

Specifications

Analog section
Excitation voltage DC10V±5% Output current: within 120mA
Remote sense type (Up to four 350Ω load cells can be connected in parallel.)
Signal input range -0.2 to 2.2mV/V
Zero adjustment range Automatic adjustment by digital operation
0 to 2.0mV/V
Span adjustment range Automatic adjustment by digital operation
0.3 to 2.0mV/V
Minimum input sensitivity 0.3μV/count
Accuracy Non-linearity: within 0.01%/FS
Zero drift: within 0.2μV/℃ RTI
Gain drift: within 15ppm/℃
Analog filter Bessel type low-pass filter (-12dB/oct) Cutoff frequency 2Hz
A/D converter Conversion rate: 100 times/sec. (Internal sampling 3200 times/sec.)
Conversion resolution: 24bit (binary)
Minimum indication resolution 1/10000
Secondary calibration Equivalent input calibration
Minimum indication resolution for secondary calibration 1/1000 (ordinary temperature)
 
Setting section
Setting method Settings are made by operating the membrane keys.
Also, settings can be made from a host computer through the RS-485 interface.
Memory of set value NOV RAM (nonvolatile RAM)
Setting items ・Upper/lower Limit Comparison Mode: Upper Limit/ Lower Limit/ Hold Time/ Near Zero/ Tare Setting/ Tare Display
・Over/Under Comparison Mode: Target Value/ Over/ Under/ Hold Time/ Near Zero/ Tare Setting/ Tare Display
・Discharging Control Mode: Final/ Compensation/ Set Point 1/ Comparison Inhibit Time/ Judging Time/ Complete Output Time/ Near Zero/ Tare Setting/ Tare Display
Password/ Digital Filter/ Motion Detection(Period)/ Motion Detection(Range)/ Zero Tracking(Period)/ Zero Tracking(Range)/ Weighing Function 1/ Weighing Function 2/ Function Key Invalid・LOCK/ Balance Weight Value/ Capacity/ Min. Scale Division/ DZ Regulation Value/ Display Selection/ Gravitational Acceleration/ Equivalent Input Calibration/ Zero Calibration/ Span Calibration/ RS-232C I/F/ D/A Output Mode/ D/A Zero Output/ D/A Full Scale/ PROFIBUS I/F/ PROFIBUS Baud Rate/ Station No.
 
I/O section
Output signals (3) HI/ GO/ LO (Can be changed to COMPL/ SP2/ SP1)
With short-circuit current limiting function by external power source.
Transistor open collector output (Emitter=COM terminal)
Output LO with transistor ON.
Input signals (1) TARE
ON when shorted with COM terminals by contact (relay, switch, etc.) or non-voltage-contact (transistor,TTL open-collector output, etc.)
Interface ・ 232: RS-232C communication interface
・ DAC: D/A converter (option) Current output 4 to 20mA
・ PRF: PROFIBUS interface (option) PROFIBUS-DP V0
* Only 1 option can be installed
 
Display section
Numerical display tube 14mm in character height
Numerical display by 7-segment green LED (6 digits)
Indicated value 6-digit, sign: negative display at the highest digit
Display frequency Select from 3, 6, 13 or 25 times/sec. (The system speed is 100 times/sec.)
Unit g, kg, t, lb, N, oz, and kN selectable
(kg printed: Others are changed by the attached label.)
Capacity 5 digit
Min. scale division Setting allowable in the range of 1 to 100.
Decimal point Select from 0, 0.0, 0.00 or 0.000
(Zero blanking display by decimal point position)
Over display LOAD: A/D converter input over,
OFL1: Net over,
OFL2: Capacity +9 scale division,
OFL3: Gross over
Center zero A true zero point or the center of each value is displayed.
Status display NZ/ HOLD/ ZALM/ STAB/ TARE/ NET/ CZ/ HI/ GO/ LO/ COMPL/ SP2/ SP1
 
General performance
Power supply voltage AC100 to 240V (+10%,-15%) [free power source 50/60Hz]
Power consumption Approx. 12W
Rush current 18A, 1.5mSec…100V AC mean load state (ordinary temperature, at cold-start time)
42A, 1.6mSec…240V AC mean load state (ordinary temperature, at cold-start time)
Operating conditions Temperature: Operation: -10 to +40℃; Storage: -20 to +85℃
Humidity: 85%RH or less (non-condensing)
Dimensions 144(W)×72(H)×160(D) mm (Projections excluded)
Weight Approx. 1.0kg
 
Attachments
AC input cable (3m) 1
Unit and status indication label 1
Mini screwdriver for terminal block connection 1
Jumper line 2
Connector for D/A converter (with D/A converter option) 1
Operation manual 1
 

Option

Model
PRF PROFIBUS interface
DAC D/A converter interface
 

Optional accessories

Model
CAAC2P-B3 AC input cord 3m
CAAC3P-CEE7/7-B2 AC input cord (withstand voltage: 250V) 2m
CN80 Loadcell input connector terminal
CN70 D/A converter connector

Download

Product catalogue(PDF)
GC2015_F741-C(290 KB)
Operation manual(PDF)
F741-C Rev.1.01(2 MB)
External dimention
DXF
(ZIP)
PDF
Support tools
F741-C GSD(671 B)
Software
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