loading

 Rika Sensor is a weather sensor manufacturer and environmental monitoring solution provider since 2010

RIKA SENSOR / DATA CENTER LIQUID COOLING

RK500-06LC
Liquid Cooling ORP Sensor

Online ORP monitoring for liquid cooling.

RK500-06LC ORP sensor with M16 connector
M16 Connector
RK500-06LC ORP sensor with direct cable
Direct Cable
-1500 to +1500 mVORP measurement range
±1 mVSpecified accuracy
4-20 mA + RS485Simultaneous outputs
7-30 VDCSupply voltage

OVERVIEW

Track coolant oxidation-reduction potential online

The RK500-06LC measures coolant ORP in liquid cooling systems, including data centers. It uses a platinum ring electrode and supports continuous online monitoring.

ORP stands for oxidation-reduction potential. Measured in millivolts (mV), it reflects how oxidizing or reducing the coolant is. Excessive oxidation can accelerate corrosion of metal components in the cooling system.

APPLICATION

Keep coolant ORP in view

Follow ORP changes as coolant circulates. Review readings and trends against the operating requirements for your coolant and equipment.

The conceptual diagram shows an ORP sensor on a return-line bypass, with a signal connection to a controller. Use ORP readings alongside other relevant coolant measurements and maintenance observations when deciding what action to take.

Conceptual liquid cooling loop with a CDU, server racks, bypass ORP sensor and monitoring controller
Conceptual liquid cooling loop with ORP monitoring on a return-line bypass.

PRODUCT FEATURES

Built for online ORP monitoring

Platinum ring electrode

Designed for online ORP measurement in oxidizing and reducing environments. Internal signal isolation helps reduce electrical interference.

Detailed ORP readings

Measures from -1500 to +1500 mV, with a specified accuracy of ±1 mV and a resolution of 0.1 mV. The specified response time is 14 seconds to 98% response in flowing liquid.

Two outputs at the same time

Simultaneous 4-20 mA and RS485 outputs connect to compatible monitoring equipment. The sensor operates on 7-30 VDC and consumes less than 0.2 W.

TECHNICAL DATA

Technical Specifications

Measurement Performance

Measurement range -1500 to +1500 mV
Specified accuracy ±1 mV
Resolution 0.1 mV
Response time 14 seconds98% response in flowing liquid
Sensing electrode Platinum ring

Electrical & Cabling

Supply voltage 7-30 VDC
Signal outputs 4-20 mA + RS485Simultaneous analog and digital outputs
Power consumption <0.2 W
Cable termination M16 connector or direct cable
Cable length 5 m standardOther cable lengths can be customized

Operating Conditions & Connections

Operating & Storage

Applicable media Deionized water, PG25 and EG25
Operating temperature 0 to +60°C
Pressure resistance 1 MPa (10 bar)
Probe ingress protection IP68
Storage temperature 10 to 60°C
Storage humidity 20%-90% RH

Materials & Process Connections

Main materials 316L stainless steel + titanium alloy
O-ring material EPDMG3/4 and NPT3/4 connections
G3/4 End-face seal
NPT3/4 Thread seal
50.5 chuck Gasket sealGasket supplied by the customer

Specification V5.2.0. Confirm the coolant type, concentration and material compatibility before ordering. The electrode requires KCl soaking when not in use; see the care instructions below.

INSTALLATION

Plan the installation for stable readings

Choose a stable flow location

Install on a bypass pipe for easier maintenance. Choose a location with steady flow and no obvious turbulence. Vertical upward flow is preferred; a suitable horizontal pipe is also acceptable.

Keep the ORP sensor at least 15° from the horizontal line.

Keep the sensing area clear

Avoid high-point gas traps, low-point sediment zones, vertical downward flow and positions downstream of pressure-reducing sections. Bubbles and deposits can affect readings.

For the M16 connector, leave at least 70 mm of cable outlet clearance to prevent excessive bending.

ELECTRODE CARE

Care for the ORP electrode

Before use

Remove the protective cap in front of the electrode before placing the sensor into service.

When not in use

Soak the electrode in 3 mol/L KCl solution or saturated KCl solution.

Do not store it immersed in distilled water, deionized water or tap water with very low ion content.

Routine cleaning

Follow the cleaning procedure in the product specification for the type of contamination present.

The specification recommends cleaning with tap water every 6 months, according to the working environment.

SPECIFY YOUR RK500-06LC

Tell Us About Your Cooling Loop

Share your coolant type and concentration, required ORP range, operating temperature and pressure, process connection, and controller input requirements. Include your preferred cable connection and length, if known.

Our team can help review the process connection, cable option and sensor configuration for your cooling loop.

Contact RIKA SENSOR

E-Mail: info@rikasensor.com

After-sales Service: support@rikasensor.com

WhatsApp | WeChat  +86 13367318895

Get in touch with us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
RIKA Sensor
Copyright © 2026 Hunan Rika Electronic Tech Co.,Ltd | Sitemap | Privacy Policy  
Customer service