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F741-C

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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
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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