F741-C

Weighing Indicator for PROFIBUS

Product outline

Compatible with a fieldbus (PROFIBUS), and serial and analog outputs, it can be combined with a wide variety of plant devices.

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｜INPUT/OUTPUT SECTION｜DISPLAY SECTION｜GENERAL SPECIFICATIONS｜ACCESSORIES

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	－0.2～2.2mV/V
Zero adjustment range	0～2.0mV/V Automatic adjustment by digital operation
Span adjustment range	0.3～2.0mV/V Automatic adjustment by digital operation
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-232C interface.''
Memory of set values	NOV RAM (nonvolatile RAM)
Setting item	・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.

INPUT/OUTPUT SECTION
Output signals(3points)	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(1point)	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 4～20mA 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 1～100.
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	AC100 ~ 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～＋40℃ ; Storage：－20～＋85℃ Humidity: 85%RH or less （non-condensing）
External dimensions	144（W）×72（H）×160（D）mm（Projections excluded）
Weight	Approx. 1.0kg

ACCESSORIES
AC input cable (3 m)	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	Description
PRF	PROFIBUS interface
DAC	D/A converter interface

Optional accessories

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

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