pH Controller & Analyzer PH101
Model PH101
Online pH controller with 0–14.00 pH range, ±0.01 pH accuracy, 3 alarm relays, 4–20 mA and RS485 Modbus RTU output. IP65, panel or wall mount, supplied with pH sensor.
- 0–14.00 pH and ±1999 mV in one unit
- ±0.01 pH accuracy, 0.01 pH resolution
- 3 relays for dosing and alarms
- 4–20 mA + RS485 Modbus RTU
- IP65 front, 96 × 96 mm panel size
PH101 specifications
| Measuring range | 0–14.00 pH; −1999 to +1999 mV |
|---|---|
| Accuracy | ±0.01 pH, ±2 mV, ±0.2 °C |
| Resolution | 0.01 pH, 1 mV, 0.1 °C |
| Relay alarm output | 3 relays, high/low point trigger |
| Signal output | 4–20 mA / RS485 Modbus RTU |
| Power supply | 100–240 VAC or 24 VDC, 50/60 Hz |
| Dimensions | 96 × 96 × 128 mm (H × W × D) |
| Panel cut-out | 92 × 92 mm (H × W) |
| Protection | IP65 |
| Calibration | 2-point calibration |
| Installation | Wall or panel mounting |
| Weight | 0.5 kg |
| Temperature compensation | PT1000, NTC10K, manual |
The PH101 is an online pH controller and analyzer for continuous pH monitoring and dosing control in sewage treatment plants, effluent treatment plants, RO pre-treatment, cooling towers and process water. It reads pH and mV (ORP) from the supplied electrode, compensates for temperature automatically and shows the live value, output current, date and time on a clear backlit display.
Three independent relays can be set as high/low set points to start and stop acid or alkali dosing pumps or to raise an alarm. The 4–20 mA output and RS485 Modbus RTU port send readings straight to your PLC, SCADA or Senvolt online monitoring system.
Typical applications
- pH correction and neutralisation in ETPs
- Aeration and final outlet monitoring in STPs
- RO feed and reject water
- Cooling tower and boiler feed water
- Food, beverage and pharma process water
Why plant teams choose the PH101
A standard 92 × 92 mm cut-out fits existing panels, two-point calibration takes a few minutes, and PT1000 or NTC10K temperature compensation keeps readings stable as the process temperature changes. Send us the application details and we will confirm the right configuration and lead time.
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Get a quote for the PH101
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