DPM Instruments has a wids range of products that have applications in chemical, pharmaceutical, drugs and intermediates, cold storages, textiles, plastic, petrochemical, cement, steel processing, engineering industries. The company offers a micro-controller based circular chart recorder, series MTR. Featrues: micro-controller based; calibration by software; LED/LCD display; RS 232C,/RS 485PC communication port; stepper motor for chart and pointer movement; easily replaceable fibre tip disposable pens; retransmission output; and Hi/Low alarm relay. Technical specifications: display - 6 digit seven segment red LED/8 x 1 alphanumeric LCD display with backlit/16 x 1 alphanumeric LCD display with backlit; keyboard: 4 keys tactile type; input - PT 100 sensor [three wire], all type thermocouple, VDC and mA DC; chart size - 6", 9" and 11" chart paper; chart speed - programmable, 8 hrs, 24 hrs, and 168 hrs [one week]; calibration - by keys on front panel; alarm output - high low potential free relay contact rated 6 amp at 230 VAC 50 Hz. For each; serial port - RS 485 or RS 232 for communication with PC [optional]; retransmission output - 4-20 mA [optional]; connection - screw type conector on back panel; cabinet - M.S. powder coated/S.S.304; and supply - 90 to 230 V AC 50 Hz [24 V DC optional].