
Load indicators - Function:
The load indicator is intended for transformation of input analogue signals from load cells and indication of weighing results in composition of weighing devices and monitoring and control systems.
Load indicators - Functions:
Load indicators - Operating modes:
Calibration — setting of measuring limits of the indicator Setting — setting of parametres and indicator operating modes Weighing — fixed measuring of the signal of the load cell and mass evaluation
- sampling of tare mass;
- automatic and manual zeroing of the indicator
- printing of weighing results
Load indicators - Technical data:
Power supply......................................... from alternating-current network with voltage V, frequency (50 ± 1) Hz or (by request) autonomous Dimensions................................................................... not more than 182 х 110 х 90 mm Mass................................................................................................. not more than 0,8 kg Display..................................................... light-emitting diode, 8 discharges, 7 segments, sign height 14,5 mm Sensitivity................................................. 0,5 microvolt/division (0-3,3 mV/V, class 3) Range of the input analogue signal of direct voltage.......................................... 0-80 mV in ranges: 0-10, 0-20, 0-40, 0-80 (the range is selected at setting) Power supply of the load cell........................................................ 5 V direct voltage Amount of connection ports of load cells....................................... 1 or 2 Quantity of load cells...................................................................... to 8 (the common resistance of load cells — not less than 50 Ohm) Length of the load cells cable................................................. 50 m maximum of six wire and 9 m of four wire Internal resolution................................................................... 24 discharg. Industrial resolution................................................................ 40000 indications Commercial resolution........................................................... 10000 indications Counting resolution.......................................................... 1х10а; 2х10а; 5х10а, where a — the whole positive and negative number in the range from minus 3 to 3 or zero Control buttons........................................................................ 4 pieces Serial interface.................................................. galvanically isolated RS-232 or RS-485 Programmes memory.............................................................. 64 Kb Volatile memory EEPROM.................................................... 2 Kb
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