Digital pH sensor SZ-HJ-PH

Modbus RTU

SZ-HJ-PH Industrial Digital pH Sensor ■ Summary SZ-HJ-PH Series of online pH electrode, adopt electrode measuring method, and realizes the automatic temperature compensation in the interior of the electrodes, Automatic identification of standard solution. Electrode adopt imported composite electrode, high precision, good stability,long lifetime, with rapid response, low maintenance cost, real-time online measurement characters etc.. The electrode using standard Modbus RTU (485) communication protocol, 24V DC power supply, four wire mode can very convenient access to sensor networks. ■ Characters ·The characteristics of industrial sewage electrode, can work stably for a long time ·Built in temperature sensor, real-time temperature compensation ·RS485 signal output, strong anti-interference ability, the output range of up to 500m ·Using the standard Modbus RTU (485) communication protocol ·The operation is simple, the electrode parameters can be achieved by remote settings, remote calibration of electrode ·24V DC power supply. ■ Technical specifications Model: SZ-HJ-PH Parameter measurement: pH、Temperature Measure range:pH：0.0~14.0 Temperature：（0~50.0）℃ Accuracy: pH：±0.1pH ,Temperature：±0.5℃ Resolution: pH：0.01pH,Temperature：0.1℃ Power supply:24V DC Power dissipation: 1W Communication mode:RS485(Modbus RTU) Cable length:Can be ODM depend on user’s requirements Installation:Sinking type, pipeline, circulation type etc. Overall size:230mm× 30mm Housing material:ABS