F741-C (Weighing Indicator)

Name: F741-C (Weighing Indicator)
Availability: InStock

F741-C (Weighing Indicator)

Category: Weighing Application

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｜Setting section｜I/O section｜Display section｜General specifications｜Attachments

Analog section
Excitation voltage	DC 10 V±5% Output current: within 120 mA Remote sense type (Up to four 350 Ω load cells can be connected in parallel.)
Signal input range	-0.2 to 2.2 mV/V
Zero adjustment range	Automatic adjustment by digital operation 0 to 2.0 mV/V
Span adjustment range	Automatic adjustment by digital operation 0.3 to 2.0 mV/V
Minimum input sensitivity	0.3 μV/count
Accuracy	Non-linearity: within 0.01% FS Zero drift: within 0.2 μV/℃ RTI Gain drift: within 15 ppm/℃
Analog filter	Bessel type low-pass filter (-12 dB/oct) Cutoff frequency 2 Hz
A/D converter	Conversion rate: 100 times/sec. (Internal sampling 3200 times/sec.) Conversion resolution: 24 bit (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 20 mA ･ PRF: PROFIBUS interface (option) PROFIBUS-DP V 0 * Only 1 option can be installed

Display section
Numerical display tube	14 mm 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 digits
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 specifications
Power supply voltage	AC 100 to 240 V (+10%,-15%) [free power source 50/60 Hz]
Power consumption	Approx. 12 W
Rush current	18 A, 1.5 mSec…AC 100 V mean load state (ordinary temperature, at cold-start time) 42 A, 1.6 mSec…AC 240 V mean load state (ordinary temperature, at cold-start time)
Operating conditions	Operating temperature: -10 to +40℃ Storage temperatur: -20 to +85℃ Humidity: 85% RH or less (non-condensing)
Dimensions	144(W) × 72(H) × 160(D) mm (Not including projections)
Weight	Approx. 1.0 kg

Attachments
AC input cable (3 m)	1
Unit and status indication label	1
Mini screwdriver (for terminal block connection)	1
Jumper wire	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 3 m
CAAC3P-CEE7/7-B2	AC input cord (withstand voltage: 250 V) 2 m
CN80	Load cell input connector terminal
CN70	D/A converter connector

Please note that there are possibilities of individual differences in a color tone on display devices such as LEDs, fluorescent display tubes and LCDs due to manufacturing process or production lots.