This file is the alpha ph 200 1/8 din ph/orp controller user manual
This user manual explains how to operate and configure the alpha pH 200 1/8 DIN pH/ORP Controller. It covers measurement modes, calibration, setup, relays, and specifications. The controller features two set points, automatic/manual temperature compensation, and isolated 4-20 mA output. Safety precautions and wiring instructions are included for proper installation and operation.
The manual also details front and back panel components, including LED displays, annunciators, and terminal blocks. It provides step-by-step guidance for calibration, setup modes, and troubleshooting, including error messages and hysteresis settings. Specifications cover pH, mV, and temperature ranges, resolution, and environmental conditions.
| pH Range | 0.00 to 14.00 pH |
|---|---|
| pH Resolution/Accuracy | 0.01 / ± 0.01 pH |
| mV Range | -999 to 1000 mV |
| mV Resolution/Accuracy | 1 / ± 2 mV |
| Temperature Range | -10 to 110 oC |
| Temperature Resolution/Accuracy | 0.1 / ± 0.5 oC |
| Sensor | Pt 100 (3-wire) |
| Temperature Compensation | Automatic / Manual (0 to 100 °C) |
| Set-point Hysteresis | 0.00 to 2.00 pH / 0 to 300 mV |
| Contact Outputs | 2 SPDT relays |
| Power Requirements | 85 to 260 VAC, 50/60 Hz or DC |
| Signal Output | 4-20 mA galvanically isolated |
| Dimensions | 96 x 48 x 150 mm |
| Weight | 300g (350g boxed) |
The pH range is 0.00 to 14.00 pH.
The temperature range is -10 to 110 oC.
The controller uses a Pt 100 (3-wire) sensor.
The controller requires 85 to 260 VAC, 50/60 Hz or DC.