pH/ORP selection* Auto Calibration- pH4,7,9- Improved measuring precision by auto operation of liquidtemperature- Full duplex communication by RS-485- Available for recorder, indicator, PLC, computer* Dead Band Setting- Securing the stability of pump operation* Data Memory- Back up data memory by EEPROM* LCD back lighting display- Recognized at dark place* Self-Diagnostic function* OPTION-Temperature compensation- Communication- Isolated DC 4~20mA PROCESS Temperature ApplicationMASTER-H •pH : lighting for pH measuring/auto calibrating•mV : lighting for ORP measuring/auto calibrating•HIGH : flickering for HIGH value setting lighting for ALARM•LOW : flickering for LOW value setting lighting for ALARM•℃ : flickering for temperature setting•CAL : lighting for calibrating→ flickering•HIGH & LOW : flickering for deadband settingFunction selection, pH/ORP selection AUTO Calibration- pH4, 7, 9 Auto cal. DEAD BAND setting- FULL SCALE (0~5
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