Chlorine ppm Sensors
- Product Details
- Range Options
- Installation
- Maintenance
- Amplifier
- Membrane Replacement Video
PPM Sensors for Precise Chlorine Measurement
CHEMTROL® offers advanced PPM sensors for accurate chlorine level measurement in water, expressed in parts per million (ppm) or milligrams per liter (mg/L).
Our solid-state sensors provide unmatched precision, reliability, and low maintenance compared to traditional chlorine sensors. They are easy to install and come with a 2-year warranty.
A Selection of Range Options
Available in multiple ranges, these amperometric sensors can be used independently or with an ORP sensor for complete water quality control. We also offer membrane-less sensors for chlorine salt generators.
Chlorine ppm Sensor Range
0…2 ppm
| Sensor Item# | Measuring Range | Description |
|---|---|---|
| PPMFC002 | 0… 002 PPM | |
| PPMTC002 | 0… 002 PPM | |
| PPMAC002 | 0… 002 PPM | |
| PPMBR002 | 0… 002 PPM | |
| PPMOZ002 | 0… 002 PPM | |
| PPMCD002 | 0… 002 PPM | |
| PPMAC002HP | 0… 002 PPM |
0…10 ppm
| Sensor Item# | Measuring Range | Description |
|---|---|---|
| PPMFC010 | 0… 010 PPM | |
| PPMTC010 | 0… 010 PPM | |
| PPMAC010 | 0… 010 PPM | |
| PPMBM010 | 0… 010 PPM | |
| PPMFC010S | 0… 010 PPM | |
| PPMCD010 | 0… 010 PPM | |
| PPMAC010HP | 0… 010 PPM |
0…100/200 ppm/Industrial Water
| Sensor Item# | Measuring Range | Description |
|---|---|---|
| PPMAC100 | 0… 100 PPM | |
| PPMAC200 | 0… 200 PPM | |
| PPMHP200 | 0… 200 PPM | |
| PPMPA200 | 0… 200 PPM |
* Active Chlorine Sensors – Comparison table
** These amperometric sensors measure hypochlorous acid in hot water systems and are specifically designed for pressure measurements (up to 8 bars). Typically, these probes are used for monitoring chlorination systems, particularly for Legionella control.
Chlorine Sensor Installation: Step-by-Step Guide for Optimal Performance
Sensor Cell Installation Guide
The chlorine sensor should be installed in a designated flow cell to ensure controlled water flow, with a recommended rate of 50 L/hr (approx. 1 L/min).
Package Contents:
- Chlorine sensor (serial number required for warranty)
- Compression fitting with O-ring and disk
- Electrolyte cap with membrane
- Electrolyte bottle with filling tip
- Screwdriver (not needed if pre-wired)
Installation Instructions:
Handle with care – Avoid touching the membrane or electrodes.
Prepare the sensor – Before use, fill the electrolyte cap without air bubbles.
Assemble – Secure the sensor into the cap until fully tightened.
Install in flow cell – Attach the compression fitting and tighten by hand.
For additional electrolyte, contact CHEMTROL®.
Flow-cell Fitting:
Sensor Calibration
Calibrate the sensor using a DPD #1 test kit for free chlorine. Perform the initial calibration two hours after startup and repeat it after 24 hours. After that, check and adjust calibration as needed, typically every four weeks.
Maintenance & Warranty
Routine maintenance is minimal—just ensure the membrane stays clean and remove the sensor to prevent freezing in winter.
The sensor comes with a standard 2-year manufacturer’s warranty. Under proper water conditions, the membrane typically lasts around one year, depending on water quality. If the membrane is removed, it must be replaced with a new one and cannot be reused.
Important information
Can the membrane be reused?
No, once used, it must be discarded.
Are the electrodes fragile?
Yes, avoid rubbing them. Gently dab if needed.
Can the electrolyte bottle be reused once opened?
Yes, but ensure it is tightly closed after each use. It remains usable until its expiry date. One bottle can fill up to three membranes.
Should the membrane be fully tightened on the probe?
Yes, tighten it completely until it cannot be turned further.
ppm Amplifier Enclosure
The CHEMTROL® PPM Amplifier Enclosure connects chlorine PPM sensors to PLCs, supporting a 4-20mA signal output and 24VDC connection.
Electronic water measurement requires proper isolation to prevent interference from stray ground currents. This amplifier unit ensures reliable signal transmission by providing necessary isolation, improving accuracy and system stability.
