Multifunction Chemistry Controllers
The same controller can actuate equipment based on pH or oxidation reduction potential (ORP). Using two SPDT (single pole, double throw) relays, these controllers can turn pumps, valves, and other equipment on or off when a reading reaches the actuation point. They also send output signals to a PLC or other receiving device to record data and control equipment. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. These controllers are often used for water treatment, electroplating, and chemical processing.
They require a pH or ORP sensor (sold separately).
Controllers with an LED display are more visible in low-light conditions than those with an LCD display.
Controllers for washdown environments are rated IP65 for protection against low-pressure washdowns and dust.
Controllers | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
pH | Oxidation Reduction Potential (ORP) | pH Sensors | ORP Sensors | |||||||||||||||||
| No. of Control Relays | Switch Industry Designation | Mechanical Relay Switching Current @ Voltage | Analog Output Current | Range | Accuracy | Range | Accuracy | Input Voltage | Mount Type | DIN Trade Size | Ht. | Wd. | Dp. | Environmental Rating | Each | Each | Each | |||
LCD Display | ||||||||||||||||||||
| 2 | SPDT | 5 A @ 120 V AC 2.5 A @ 240 V AC | 4-20 mA | 0.0 to 14.0 pH | ±0.05 pH | -1,999 to 1,999 mV | ±0.5% | 120V AC 240V AC | Panel | 1/4 | 3 3/4" | 3 3/4" | 4 3/4" | __ | 00000000 | 0000000 | 000000000 | 0000000 | 000000000 | 0000000 |
LCD Display—For Washdown Environment | ||||||||||||||||||||
| 2 | SPDT | 5 A @ 120 V AC 2.5 A @ 240 V AC | 4-20 mA | -2.0 to 16.0 pH | ±0.17 pH | -2,500 to 2,500 mV | ±0.1% | 120V AC 240V AC | Panel | 1/4 | 3 3/4" | 3 3/4" | 6 5/8" | IP65 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
LED Display | ||||||||||||||||||||
| 2 | SPDT | 5 A @ 120 V AC 2.5 A @ 240 V AC | 4-20 mA | 0.0 to 14.0 pH | ±0.05 pH | -1,999 to 1,999 mV | ±0.5% | 120V AC 240V AC | Panel | 1/4 | 3 3/4" | 3 3/4" | 4 3/4" | __ | 00000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |