Unipulse F701 basic weighing controller
F701 is a general-purpose weighing controller that is compatible with all weighing systems. This is a practical device excellent in cost effectiveness, which is equipped with the final discharge function allowing high-accuracy feeding and discharging weighing control, the weighing sequence function essential to hopper and packing scales, and the interface connectable to various peripherals such as RS-232C and BCD output.
ANALOG SECTION |
Excitation voltage | 10V DC ±5%, Output current; within 120mA, remote sense type (Up to 4 loadcells at 350Ω are parallel-connectable.) |
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Zero adjustment range | 0 - 1.5mV/V for HI gain 0 - 3.0mV/V for LO gain (digital adjustment) Input of approx. 0.5mV/V or 1.0mV/V, Selectable adjust to zero [by dip switch on the rear panel] |
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Gain adjustment range | 2 stages of gain selectable according to the output of loadcell [by dip switch on the rear panel] 0.5 - 1.5mV/V for HI gain, 1.0 - 3.0mV/V for LO gain (digital adjustment) |
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Min. input sensitivity | 0.5μV / count |
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Accuracy | Non-linearity: within 0.01%/FS Zero drift: within 0.2μV/°C RTI (Typ: 0.15μV/°C) Gain drift: within 15ppm/°C (Typ: 7ppm/°C) Noise: within 0.1μVp-p RTI (0.1 - 10 Hz) |
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Analog filter | Bessel low-pass filter (-12dB/oct.) selectable from 2, 4, 6, 8 Hz |
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A/D converter | Speed: 100 times/sec Resolution: 16 bit |
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Min. display resolution | 1/10000 |
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Secondary calibration | Calibration can be carried out without an actual load by connecting a resistor to one of the bridges of a loadcell. |
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SETTING SECTION |
Setting method | ? Keyboard operation (membrane switch with a key click buzzer) ? External setting is available by installing a setting point option or RS-232C option |
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Setting value storage | ? Initial set values: NOV RAM (Non-volatile RAM) ? Other set values: C-MOS RAM with backup of a lithium battery (Effective for more than 7 years depending on usage conditions and storage environment.) |
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Setting value protection | Setting operation can be locked to prevent unauthorized modifications of default values and calibration by malfunction |
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INPUT/OUTPUT SECTION |
External output signal | Transistor’s open collector output (Emitter = COM terminal); Output is LO when transistor is ON (Near zero, SP1, SP2, SP3, go or comp, over, under, high limit, Low limit, stable, weight alarm or error, run) |
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External input signal | ON when shorted to COM terminal by TTL-level relay, switch, transistor, or open collector output. (Feed / discharge, tare ON, tare OFF, zero, gross / net, hold or judgment, start, stop) (Drive current: 10mA or less) |
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Output Conditions | - SP1: Net weight >= final weight-SP1 - SP2: Net weight >= final weight-before final - SP3: Net weight >= final weight-FF - Under: Net weight < final weight-underweight - Over: Net weight > final weight-overweight - Go: Final weight+overweight >= netweight >= final weight-underweight |
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Interface | ? SIF: 2-wire type serial interface (standard); Interface to link with Unipulse printer or external display ? SPI: Interface for set-point units (Optional); Interface to enter various set values via digital switches ? BCO: BCD parallel data output interface (Optional): Parallel interface to transmit weight data to a printer, external display, PC or sequencer. ? 232: RS-232C communication interface (Optional): Write (change) / read weight data, various statuses and setting values from a PC or sequencer. ? 485: RS-485 communication interface (Optional): Allows longer-distance communication than RS-232C. ID numbers are set, and multiple units of F701 are parallel-connectable. ? DAC: D/A converter interface (Optional); Interface to convert weight data to current signal and output it.
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DISPLAY SECTION |
Display unit | Numerical display (7 digits) with a character height of 18.5 mm by fluorescent display tube |
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Display value | 5 digits, Minus sign displayed on most significant digit |
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Scale capacity | 5-digit numerical values |
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Min. scale division | 1 to 100 |
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Decimal point | Selectable from 0, 0.0, 0.00, 0.000 (with zero blanking function) |
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Over-scale display | Input of A/D converter overflow, Net weight over the set net value, scale capacity + 9 scale divisions, Gross weight over the set gross weight |
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Center zero | True zero point or the center of each value is displayed. |
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Unit display | Selectable from t, kg, g, N, lb, none |
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Status display | SP3, SP2, SP1, LOCK, ZT, ZALM, STAB, TARE, NET, GROSS, HI LIM, HI, GO, LO, LO LIM, HOLD, NZ |
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GENERAL SPECIFICATIONS |
Power supply voltage | 85 - 110V, 102 - 132V, 170 - 220V, 187 - 242V AC (Please specify when ordering), 50/60 Hz |
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Power consumption | Approx. 15VA |
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Operating conditions | Temperature: Working temperature range -10°C - +40°C; Storage temperature range -20 - +85°C Humidity: 85% RH or less (non-condensing) |
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External dimensions | 192 (W) x 96 (H) x 160 (D) [mm] (protruding parts not included) |
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Panel cutout dimensions | 186(+2 / -0) (W) x 92 (+1 / -0)(H) mm (protruding parts not included) *Installation panel thickness: 1.6 mm or more |
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Weight | Approx. 2.2 kg |
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ACCESSORIES |
AC input cord (2m) | 1 |
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Spare fuse (1A) | 1 |
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Loadcell input connector | 1 |
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Control signal I/O connector | 1 |
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Flathead screwdriver | 1 |
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Operation Manual | 1 |
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Set point unit connector (when set point unit option is installed) | 1 |
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BCD output connector (when BCD output option is installed) | 1 |
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D/A converter connector (when D/A converter option is installed) | 1 |
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Option
Model | Description |
SPI | Set point unit interface |
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BCO | BCD parallel data output interface |
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232 | RS-232C communication interface |
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485 | RS-485 communication interface |
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DAC | D/A converter interface |
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Optional accessories
Model | Description |
E780 | Set point unit |
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LB01-NH | Lithium battery (with NH connector) |
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CAAC2P-P2 | AC input cord 2 m |
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CAAC3P-CEE7/7-P1.5 | AC input cord (250V withstand voltage) 1.5 m |
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CN3P-2P | 3P-2P conversion plug for AC input cord |
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CA4131 | (6-core) cable with JR connector at one end (cable end is separated) 3 m |
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CA4230 | JR-PRC conversion relay (6-core) cable 0.3 m |
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CA4311 | JR-PRC conversion relay (6-core) 4-wire type / 6-wire type (for 520A) 1m |
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CA7 | Coaxial cable with BCN on both ends 1.5 m |
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CA8 | BNC-alligator clip cable 1.5 m |
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CA3150 | Flexible flat cable with 57F 36 pins at both ends |
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CN21 | 57 series 36p connector for BCD output / set point unit |
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CN23 | 57 series 24p connector for external input / output |
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CN35 | D-sub 25p connector for RS-232C |
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