Introduction

Principle & Structure

The ORP online analyzer is a composite electrode composed of a glass indicator electrode and a reference electrode. The measurement of ORP is based on the potential difference measured in the solution of the working battery composed of the measuring electrode and the reference electrode, and the linear relationship between the ORP value of the solution to be measured and the potential of the working battery is used to realize the online monitoring of ORP.

Features

● Simple cleaning and activation, and fast balancing;

● Visual alarm system;

● Sensor connection status display (online/offline);

● Built-in self-diagnosis function to ensure accurate data;

● The distance between sensor and transmitter can reach over 100 meters;

● Standard digital signal output;

● Modular installation of sensors to achieve plug and play;

● English and Chinese display can be switched, and it is more convenient to use Chinese.

application

Online monitoring of ORP in the process flow of sewage treatment plant inlet and outlet, sedimentation tank, biochemical reaction tank, etc.;

ORP monitoring of municipal water supply industry, surface water, aquaculture and other industries;

On-line monitoring of ORP for various industrial process water and wastewater treatment processes.

technical parameter


sensor

Measuring range:­2000 ...2000mV
measurement accuracy:±5 mV
Pressure range:≤6 bar
Zero mV value:86±15mV (25℃) (in pH7.00 solution with saturated quinhydrone)
Very bad:≥170mV (25℃) (in pH4 solution containing saturated quinhydrone)
Response time:≤10 seconds (reaching 95% of the end value, stirring state)
Sensor main material:Black polypropylene, Ag/Agcl reference gel
Medium temperature:0...80℃
size:Diameter 30mm*Length 195mm
weight:0.2KG
Protection class:IP68/NEMA6P
cable length:Standard cable length: 10 meters, up to 100 meters
transmitter
AC power supply:AC220V、50HZ
DC power supply:DC24V
Main material:Flame retardant ABS
storage temperature:20...70℃
Operating temperature:15...60℃
Installation method:Pinch Pipe/Wall Mount/Panel
Protection class:IP65/NEMA4X
size:100mm*100mm*150mm (length*width*height)
weight:0.58KG
output:One channel of 4...20mA analog output, program setting response parameters and corresponding ranges 
Relay:Set up two-way relays, program setting response parameters and response values
Digital communications:Equipped with MODBUS RS485 communication function, which can transmit measured values ​​in real time

Selection table

AP31A-ORP redox potential sensor

Probe Material

polypropylene

Measuring range

­1000...1000mV

cable length

Standard matching cable length 10 meters

M stands for meters, followed by items to represent the actual cable length, up to 100 meters.
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.
AP31B-Redox Potential ORP Transmitter

Power supply

DC24V

AC220V,50HZ,5W

output signal

Standard: 4...20mA current output + relay Relay output * 2 channels

Optional: 4...20mA+Relay*2ch+MODBUS RS485 communication

Alternatives: Additional Equipment

No additional accessories

Matching ABS material instrument protection box

Matching 1.4301 (304) material instrument protection box (indoor)

Matching 1.4435 (316L) material instrument protection box (outdoor)
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.

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