RK500-12LC
Liquid Cooling pH Sensor

pH measurement

A low-impedance glass membrane and automatic temperature compensation support online pH measurement. Specified accuracy is ±0.1 pH at 25°C, with 0.01 pH resolution.

Protection against interference

Internal signal isolation helps reduce electrical interference. The glass membrane is resistant to hydrolysis and can be used in alkaline conditions.

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.

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 pH 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.

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.