ZWQ-CT1 Residual Chlorine Sensor
ZWQ-CT1
The ZWQ-CT1 measures residual chlorine from 0-2 mg/L with ±1% accuracy using a Clark-type amperometric electrode. It requires a continuous sample flow of 250-500 mL/min and operates within a pH range of 4-9, and is intended for tap water, secondary water supply and swimming pool applications. MetSensor UK supplies the ZWQ-CT1 in the UK as part of the Zata IoT sensor range.
- ✓ Clark current (amperometric) measurement principle
- ✓ High resolution, 0.001 mg/L
- ✓ CPVC housing suited to chlorinated water contact
- ✓ Defined operating pH range (4-9) and conductivity range (10-50,000 µS/cm)
- ✓ 3-metre integral electrode cable
Specifications
| Measuring principle | Clark current |
|---|---|
| Measure range | 0-2 mg/L |
| Resolution | 0.001 mg/L |
| Accuracy | ±1% |
| Required flow rate | 250-500 mL/min |
| Operating pH range | 4-9 |
| Operating conductivity range | 10-50,000 µS/cm |
| Interface | RS485 (Modbus RTU) |
| Material | CPVC |
| Electrode dimensions | D25mm x L188mm |
| Electrode cable length | 3m |
| Power supply | DC 12/24V |
| Measure resolution | 0.001 mg/L |
| Electrode dimension | D25mm x L188mm |
| Power | DC12/24V |
Applications
- Tap water and secondary water supply
- Swimming pool
Frequently asked questions
Does the ZWQ-CT1 need a continuous water flow?+
Yes, it requires a sample flow rate of 250-500 mL/min to take an accurate reading.
What pH range does it operate within?+
4-9. Readings outside this range are not covered by the stated specification.
What is the measurement range?+
0-2 mg/L, with a resolution of 0.001 mg/L and accuracy of ±1%.
Is the ZWQ-CT1 suitable for swimming pool water?+
Yes, tap water, secondary water supply and swimming pool are the listed applications for this sensor.
What material is the sensor body made from?+
CPVC, chosen for compatibility with chlorinated water.
