Chapter 1 Overview Chapter 1 Overview The online pH/ORP controllers are suitable for continuous monitoring of pH or ORP values of aqueous solutions in various industries. 1.1 Technical Parameters pH: 0~14pH Display Range ORP: -2000mV~2000mV Temp.:-10~+150℃ Resolution pH: 0.01pH ORP: 1mV Temp.: 0.1℃...
Chapter 2 Mechanical Installation Chapter 2 Mechanical Installation 2.1 Dimension Figure 2-1 Instrument dimension 2.2 Installation When the controller is selected for panel mounting, the user passes the fixing clips through the back of the instrument until it is tightened, and the mounting dimensions and diagram are shown below: Figure 2-2 Panel mounting Figure 2-3 The minimum opening spacing...
Chapter 3 Electrical Installation Chapter 3 Electrical Installation 3.1 Power Connection After unscrewing the screws on the back of the meter, remove the cover and see the terminal blocks. According to the power supply type of the instrument, access 100~240VAC or 18~36VDC. Note: Before connecting AC power, be sure to cut off the power supply Figure 3-1 Two types of power terminals Two kinds of power terminals are defined in the Table:...
3.2 Terminal Definition The electrode cable is connected to the ACT, REF, SG ,TEMP terminals, and the rest are connected according to actual needs. Figure 3-2 terminal blocks The terminal locations and names are shown in the table below: pH(ORP) probe indication RS485 signal D+(A) RS485 pH(ORP) probe reference...
Chapter 4 User Interface Chapter 4 User Interface 4.1 Panel Button Button Function In the main menu, long press to return to the measurement mode In the sub menu, return to the previous menu When setting the value, abandon the modification and return to the previous menu During calibration, cancel the calibration process In measurement mode, long press to enter the main menu In measure mode, switch between two secondary display modes...
4.2 Display Screen The meter normally displays the measurement interface after power-on. The specific information is as follows: Relay State Relay State Range Indication Measurement Internal Temp. Alarm Sub-display bar Probe Type TEMP. Relay state: indicate the current relay state: on or off ...
Chapter 5 Menu Description Chapter 5 Menu Description In the measurement interface, long press the button to enter the menu. This chapter describes the main features. 5.1 Probe Setting Perform sensor calibration and view sensor status. After the probe is connected to the controller, it needs to be calibrated first due to the error between the signal of the actual electrode and the standard.
ORP Calibration 1. Preparation before calibration In the menu [ Select Probe ], select [ ORP Probe ] ORP 86mV, 256mV standard solution Deionized cleaning solution and absorbent paper Zero Calibration (1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it into a standard solution with ORP 86mV;...
5.3 Current Setting Use a current signal to output the measured value. Set the measured value for the current in [ Channel Select ]. The measured values corresponding to the current output “ 20mA ” and “ 0mA/4mA ” are set in “...
Chapter 5 Menu Description Appendix ModBus Register Introduction The instrument acts as a slave on the network and supports the Modbus RTU communication protocol. The main unit can use function code 04 to read the measurement results. The parameters corresponding to the register address are defined as follows: Function Number of Register Start...
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__ __ ITEM DETAILS Name pH Indicating Controller Transmitter Make MicroSet Model MS pH 97 Serial No __ __ __ __ __ Input pH Sensor Model : MS pH __ __ SN : __ __ __ __ __ pH Simulator READING...
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WARRANTY CERTIFICATE MicroSet warrants each instrument to be free from defects in material & workmanship. This obligation to servicing or part returned to the company for that purpose & making good any parts thereof which shall be within warranty period, returned to the company under a written intimation &...
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