Dpm instruments offers capacitance type controller/indicator. Specifications: display - 2x4 digits [9999] 7 segment led display; keypad - membrane; calibration - by software; range - programmable; input type - 4 to 20 ma, 0 to 10 volts dc; decimal point - programmable; accuracy - ±0.1 per cent; control o/p - relay 1/2/3/4 [5 amp. Rating]; control action - on/off; control mode - high/low; enclosure - 96 x 96 x 110 or flameproof [optional]; and supply voltage - 110/230v ac, 50 hz.
