MIK-ORP6.0 Industrial online ORP meter controller

The MIK-PH6.5 is an online industrial pH/ORP analyzer used in chemical, metallurgy, environmental protection, food, agriculture and water treatment applications. It provides 4–20 mA, RS485 (Modbus-RTU) and relay outputs for pH control and remote data transmission.

It measures pH or ORP, together with temperature for compensation.

• pH: 0.00–14.00 pH, accuracy ±0.02 pH
• ORP: -2000 to +2000 mV; accuracy ±1 mV from -1000 to +1000 mV, and ±2 mV from -2000 to -1000 mV and +1000 to +2000 mV

Yes. The MIK-PH6.5 is the analyzer (transmitter/controller) and works with a pH or ORP electrode. Asmik offers a full range of pH electrodes for different media such as sewage, pure water and drinking water, including the MIK-pH6001, MIK-pH6002 and MIK-PH5013A.

pH glass electrodes have a very high internal resistance. A high input resistance of at least 10¹² Ω ensures the meter draws almost no current from the electrode, so the measured potential is accurate and stable.

• NTC10K: -10 to 60 °C (accuracy ±0.3 °C); 60 to 130 °C (accuracy ±2 °C)
• Pt1000, or Pt100 (customized): accuracy ±0.3 °C
• Compensation range: -10 to 130 °C, manual or automatic

• Analog output: 4–20 mA, maximum loop 750 Ω, ±0.2% FS
• Digital output: isolated RS485, Modbus-RTU
• Relays: 2 channels, pickup/breakaway, AC 250 V / 3 A

Yes. The two relays can be used for pH control, for example to start or stop acid or alkali dosing pumps at set points. The 4–20 mA output can also be used by a PLC or controller for proportional control. See our metering pumps for dosing.

Yes. The isolated RS485 Modbus-RTU interface allows the pH/ORP values to be transmitted to a PLC, SCADA or remote monitoring system.

• AC: 220 V ±10%, 50/60 Hz
• AC: 110 V ±10%
• DC: 24 V ±10%

Input power is ≤6 W.

It has a 2.8-inch monochrome LCD with a resolution of 128×64.

• Overall dimensions: 100 × 100 × 150 mm
• Panel cutout: 92.5 × 92.5 mm
• Weight: 0.58 kg

The ingress protection rating is IP5X. For outdoor or wet locations, please install the meter in a suitable protective enclosure and tell us your site conditions.

• Working temperature: 0 to 60 °C
• Relative humidity: 10% to 85% (no condensation)
• Storage temperature: -15 to 65 °C; storage humidity 5% to 95% (no condensation)
• Altitude: below 2000 m

Both share the same specification table, with slightly different overall dimensions (MIK-PH6.8: 100 × 100 × 150.5 mm). Please contact us to confirm which model best suits your project, or see the MIK-PH6.8 product page.

Calibration is performed with standard buffer solutions that bracket your process pH. Asmik standard pH calibration solutions are available in sets of 4.00 / 7.00 / 10.00 or 4.00 / 6.86 / 9.18. Follow the calibration procedure in the manual.

• Mount the meter in a panel using the 92.5 × 92.5 mm cutout.
• Keep the electrode cable as short as practical and away from power cables and motors.
• Install the electrode where the sample is representative and the glass membrane stays wet.
• Wire the temperature sensor for automatic compensation.

Please follow the installation manual or contact our engineers for site-specific requirements.

It is used in chemical, metallurgy, environmental protection, food, agriculture, and industrial and water treatment processes for pH monitoring and control.

To help us select the correct configuration, please provide:

• Measured parameter (pH or ORP) and medium
• Process temperature and required temperature sensor type
• Electrode requirements (if needed)
• Output and relay requirements
• Power supply (220 VAC, 110 VAC or 24 VDC)
• Installation environment
• Quantity

Send your requirements to info@asmik.com or contact us via WhatsApp at +86 13325716921.