pH Controllers
pH controller supply and OEM cooperation for equipment manufacturers and engineering partners.
Application & product range
For projects that require a pH controller as part of a wider water treatment equipment package. Product selection begins with the application and integration requirements.
Product series
- A10PR and A11PR pH / ORP controllers
- A20PR and RP-3000 larger-format controllers
- A30PR compact-format controller
Product views
Configuration & specifications
- Power supply versions listed: 100–240 VAC or 24 VDC
- Wall or panel mounting, as listed for the model
- Signal outputs and relay count vary by controller model
| Parameter | Catalogue reference |
|---|---|
| Reference model | A10PR (the values below refer to this model) |
| pH range | 0–14.00 pH |
| ORP range | −1999 to +1999 mV |
| Listed accuracy | ±0.01 pH; ±2 mV |
| Signal output | 4–20 mA / RS485 Modbus RTU |
| Relay alarm output | 3 relays, high / low point trigger |
| Power supply | 100–240 VAC or 24 VDC; catalogue lists 50/60 Hz |
| Overall dimensions (H × W × D) | 96 × 96 × 132 mm |
| Panel cut-out (H × W) | 92.5 × 92.5 mm |
| Calibration | 2-point calibration |
| Ingress protection listed | IP65 |
Controller formats at a glance
Catalogue reference values. Confirm the selected model and configuration before ordering.
| Model | Size H × W × D (mm) | Panel cut-out (mm) | Relay count | Listed signal output |
|---|---|---|---|---|
| A10PR | 96 × 96 × 132 | 92.5 × 92.5 | 3 | 4–20 mA / RS485 |
| A11PR | 96 × 96 × 128 | 92 × 92 | 3 | 4–20 mA / RS485 |
| A20PR | 144 × 144 × 115 | 138 × 138 | 3 | 4–20 mA / RS485 |
| A30PR | 48 × 96 × 110 | 42 × 90 | 1 | 4–20 mA |
| RP-3000 | 144 × 144 × 115 | 138 × 138 | 2 | 4–20 mA & RS485 |
Source: APURE water quality instrument catalogue, printed pages 01–02 (PDF page 6).
Supply & customization scope
Supply scope
- pH / ORP controller supply and OEM discussions for the model and quantity specified in the inquiry.
- Sensor selection, installation accessories and documentation are identified in the quotation.
Final scope, configuration and responsibilities are confirmed for the specific requirement.
To begin product selection
- Application and measurement requirements
- Existing equipment or reference model
- Power supply and required signal connections
- Expected quantity and purchasing schedule
Product literature
Request product documentation
Please include the documents you need in your inquiry.
Related purchasing guides
Start with a conversation
Your requirements.
A clearly defined next step.
Tell us what you are building, sourcing or planning.