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Large dual LCD shows both pH (or mV) and temperature
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Two set point, two SPDT relay operation- choose from lo/lo, lo/hi, hi/lo or hi/hi control
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Separate alarm relay
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0 to 2000 second time delay adjustment on all relays
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Separately adjustable high and low set point hysteresis bands
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0-20/4-20 mA transmitter/recorder output
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Push button two-point calibration
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On-line electrode offset adjustment
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Hold feature lets you connect flow or level switches to protect your pump
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Two level password protection
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LED indicators signal control activities
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Battery back-up of memory
Control your process with three available control strategies: On/off, proportional pulse length, or proportional pulse frequency. Use proportional control to gradually increase or decrease pump or valve response, depending on the deviation from the set point.
Manually control test relays with the touch of one button. Relays include programmable time delay to minimize false alarms. Hold relay feature lets you connect other controllers, flow switches, or level switches for failsafe operation.
Controller is compatible with a variety of electrodes, including glass and antimony. Symmetrical electrode inputs eliminate electricalnoise problems when used with a solution ground. Connections are made through the two removable terminal strips for easy installation.
| Measures
|
pH, mV, °C |
| pHRange
|
0.00 to 14.00 pH |
| pHResolution
|
0.01 pH |
| pHAccuracy
|
±0.01 pH |
| pHCalibration
|
one or two points (select from pH 1.00, 4.00, 7.00, 9.00, 10.00) |
| mVRange
|
±1000 mV |
| mVResolution
|
1 mV |
| mVAccuracy
|
±1 mV |
| mVCalibration
|
offset for ORP mV calibration, or two points (20% and 80%) for ORP % calibration |
| TemperatureRange
|
-9.9 to 125°C |
| TemperatureResolution
|
0.1°C |
| TemperatureAccuracy
|
±0.1°C |
| TemperatureCalibration
|
offset up to ±5°C |
| Control type
|
on/off or proportional (selectable) |
| Number of inputs
|
one |
| Number of set points
|
two (high and low) |
| Separate alarm relay
|
yes |
| OutputControl
|
2 SPDT relays, 6 A at 110 VAC, 250 VAC maximum |
| OutputAlarm
|
1 SPDT relay, 6 A at 110 VAC, 250 VAC maximum |
| OutputPulse
|
pulse length (0.5 to 20 sec) or pulse frequency (60 to 120 pulses per min) |
| OutputCurrent
|
isolated 0-20.4-20 mA, with 20% to 100% full-scale scalable boundaries, 600 W maximum load |
| Hysteresis
|
0.1 to 1.0 pH, 10 to 100 mV, or 1 to 10% |
| Relay delay
|
selectable, 0 to 2000 seconds |
| Input impedance
|
10^12 MW
|
| Electrical isolation
|
yes, galvanically |
| Temperature Sensor
|
100 W or 1000 W Pt RTD |
| Temperature Compensation
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Automatic or manual from -9.9 to 125°C |
| Password protection
|
two level password |
| Display
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dual line LCD, 4-digit upper and 3 1/2 digit lower |
| Operating Temperature
|
-10 to 60°C |
| Housing
|
1/4 DIN |
| Dimensions
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3.8" x 3.8" x 6.9" (9.6 x 9.6 x 17.5 cm) |
| Shipping weight
|
2.5 lbs (1.2 kg) |
Select from three control modes: on/off, proportional pulse length or proportional pulse frequency.
