Introduction MS—H375 communicator is handed remote communication device, it uses Bell202 standard frequency excursion technique, conforming to HART protocol. This communicator could communicate with Micro Sensor's MPM486, MDM3051 intelligent pressure with HART protocol; interface connecting is easy, 3 AA change up nickel-manganese-hydrogen battery power supply, no outer power needed. The communicator is used for local or remote communication conveniently. Basic Function Inspection-self The communicator inspects itself when power on, and searches transmitter as well. Transmitter and Loop Testing Testing function verifies if transmitter, interface and loop are working normally. Configuration Function Setting relative parameter for transmitter. Parameter Relative to Output Display 14 units, calibrate 4mA and 20mA setting value, change linearity or evolution output and input damp. Parameter Un-relative to Output Setting transmitter SN, description signal, date, information, indicator type, isolated diaphragm and port material. Formating Function Adding pressure on sensing part to get one relative value, save this value in HART intelligent transmitter electronic circuit's EEPROM. Keyboard Function Keyboard includes integrated letter keyboard, 6 special function keys and 3 signal keys and conversion key. MS—H375 Hand Communicator Connection The communicator could connect with transmitter through any terminal in control room or MICRO SENSOR CO.,LTD http: //www.microsensor.cn Add: No.18,Yingda Road Baoji,P.R.China, 721006 Tel:+86 917 3600739/3600832 Fax: 3609977

local place or loop, but there should be resistor between 2500 and 5000. Wiring has no polarity difference, please pay attention that terminal must be connected with transmitter two sides or load resistors'two sides, but not power's two sides. MS—H375 Hand Communicator Application -(A-Current meter MICRO SENSOR CO.,LTD http: //www.microsensor.cn Add: No.18,Yingda Road Baoji,P.R.China, 721006 Tel:+86 917 3600739/3600832 Fax: 3609977