Knowledge Base
Isolated front-endYes 
pH input current4 (max)pA
pH Resolution0.005pH
pH connectionOn board BNC connector, plastic threaded for isolation 
Supply voltage range12 – 24Volts DC
Supply current65/70mA (12/24 VDC)
RTD typePT1000 
RTD resolution0.13°C
RTD accuracy1%
Thermistor resistance2K – 10K, 10K preferredKohms
Thermistor resolution0.3°C (10K thermistor, 0 – 60°C)
Thermistor Excitation Voltage10Volts
Thermistor Source Resistance39KKOhms
Xwire interfaceTTL and RS485Pin Jumper selectable
Xwire address range0 – 249Pin jumper selectable
Xwire pH dataFloating point number normalised to 1.0 
Xwire Thermistor dataFloating point number normalised to 1.0 
Xwire RTD dataFloating point number normalised to 1.0