Multifunction Chemistry Controllers
The same controller can actuate equipment based on pH or oxidation reduction potential (ORP). Attach pH and ORP sensors (not included) and set the current measurement type with the selection switch. Controllers turn equipment on or off when the reading reaches the actuation point. They have one control relay and two alarm relays. Relays are SPDT (single pole, double throw) and can be set to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed). Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures.
Controller with LED display is more visible in low-light conditions than controller with LCD display.
pH | Oxidation Reduction Potential (ORP) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIN Trade Size | Range | Accuracy | Range | Accuracy | AC Voltage (Phase) | Mount Type | Ht. | Wd. | Dp. | Fasteners Included | Each | |
LCD Display | ||||||||||||
| 1/4 | 0.0 to 14.0 pH | ±0.01 pH | -1,999 to 1,999mV | ±0.1% | 120 (Single) | Panel | 3 3/4" | 3 3/4" | 4 3/4" | No | 00000000 | 0000000 |
LED Display | ||||||||||||
| 1/4 | 0.0 to 14.0 pH | ±0.01 pH | -1,999 to 1,999mV | ±0.1% | 120 (Single) | Panel | 3 3/4" | 3 3/4" | 4 3/4" | No | 00000000 | 000000 |
Conductivity Controllers
Turn pumps, mixers, valves, and other equipment on or off based on the conductivity of a solution. These controllers compare input from a sensor (sold separately) to a programmed actuation point and react when the reading reaches the actuation point. They’re often used in water treatment and electroplating. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures.
Controllers with mechanical relay output directly turn equipment on or off with two SPDT (single pole, double throw) relays.
Controllers with analog output send 4-20mA signals to a PLC or other receiving device (not included) to record data and control equipment.
Controllers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Conductivity | Sensors | ||||||||||||||
| No. of Control Relays | Switch Industry Designation | Range | Accuracy | Actuation Points | Actuation Tolerance | Input Voltage  | Ht. | Wd. | Dp. | Mounting Location | DIN Trade Size | Each | Each | ||
LCD Display | |||||||||||||||
| 2 | SPDT | 0 to 2.000 µS 2.000 µS to 20.000 µS 20.000 µS to 200.000 µS 200.000 uS to 2,000.000 uS 2.000 mS to 20.000 mS | ±0.5% Full Scale ±1 Digit | 2 | 0 to 0.2 µS 0 to 2 µS 0 to 20 µS 0 to 200 µS 0 to 2 mS | 100-240V AC | 1 3/4" | 3 3/4" | 4 3/4" | Panel, Wall | 1/8 | 00000000 | 0000000 | 000000000 | 0000000 |
Controllers | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Conductivity | Sensors | |||||||||||||
| Output Current | Range | Accuracy | Actuation Points | Actuation Tolerance | Input Voltage | Ht. | Wd. | Dp. | Mounting Location | DIN Trade Size | Each | Each | ||
LCD Display | ||||||||||||||
| 4-20mA | 0 to 2.000 µS 2.000 µS to 20.000 µS 20.000 µS to 200.000 µS 200.000 uS to 2,000.000 uS 2.000 mS to 20.000 mS | ±0.5% Full Scale ±1 Digit | 2 | 0 to 0.2 µS 0 to 2 µS 0 to 20 µS 0 to 200 µS 0 to 2 mS | 100-240V AC | 1 3/4" | 3 3/4" | 4 3/4" | Panel, Wall | 1/8 | 000000000 | 0000000 | 000000000 | 0000000 |