ORP Online Monitor

Product Overview：

ORP Online Monitor is a commonly used instrument and equipment, mainly used to accurately measure the pH/redox potential value of liquid media, and is widely used in industry, agriculture, scientific research, environmental protection and other fields.

Measurement Principle：

The measuring electrode is immersed in the solution, and the H+ ions generate a battery voltage between the electrode membrane and the solution. The battery voltage generated by the electrode is proportional to the ORP value. The controller has a built-in microcomputer circuit to obtain the ORP value by measuring the battery voltage.

ORP Standard Solution Configuration

Weigh 10.2g of quinone hydroquinone and add it to 250mL of a standard buffer solution with a pH value of 4.01. Stir well and mix it into a standard solution of 256mV.

Weigh 10.2g of quinone hydroquinone and add it to 250mL of a standard buffer solution with a pH value of 6.86. Stir well and mix it into a standard solution of 86mV.

Instrument features:

❊Dot matrix LCD screen display

❊Intelligent menu operation

❊Various automatic calibration functions

❊Various signal output modes

❊Manual and automatic temperature compensation

❊Three groups of relay control switches

❊High limit, low limit, hysteresis control

❊Display pH/ORP, temperature, status, etc. on the same interface

Technical parameters:

Product name: Online PH/ORP meter

Product model: HM-ORP

Measuring range: pH: 0-14.00 ORP: -2000+2000mV Temperature: 0-150℃ (depending on the electrode)

Measurement accuracy: pH: ±0.02pH ORP: ±1mV Temperature: ±0.3℃

Temperature compensation: automatic or manual

Resolution: pH: 0.01pH ORP: 1mV Temperature: ±0.1℃

Stability: pH: ≤0.01pH/24h; ORP: ≤1mV/24h

Relay: three groups 5A 240VAC/5A 28VDC or 120VAC

Power supply: 85～265VAC or 9～36VDC, power: ≤3W

Current output: 2-way 4-20mA as standard

Communication output: RS485 Modbus RTU as standard

Dimensions: 215*125*80mm

Opening size: –

Protection level: IP65

Installation method: wall-mounted

Instrument weight: 1.5kg

Ambient temperature: -10～60℃; Relative humidity: ≤90%; No strong magnetic field interference around except the earth’s magnetic field