Dpm instruments pvt. Ltd. Is a reputable instrument maker. Their products are used in chemical, pharmaceutical, drugs and intermediates, cold storages, textiles, plastic, petrochemical, cement, steel processing and engineering industries. Their one such product is the programmable temperature controller. It has a 2 x 4 digits [9999] 7 segment led display. It has a membrane keypad. The calibration is done by software. Type of input is universal [thermocouple, pt-100, linear, 0 to 10 volt dc]. The resolution is pt-100, thermocouple-1°c or 0.1°c up to 900°c, 4 to 20 ma- adjustable. The accuracy is pt-100, j/k, and 0 /4 to 20 ma 0.25%. The o/p is controlled by either 1/ 2 / 3 / 4 / 5 relay [5 amp. Rating] or ssr or hi or lo alarm o/p. Control action is time proportional and on/off. The sock timer is ranging from 0 to 9999 min and 99.59 min. The control mode is available in heat and cool. The enclosure is din std / flameproof aluminium die casting certified by cmrs dhanbad as per is 2148 of group ii a and group ii b. The supply voltage is about 230 volt ac, 50 hz.
