Large dual LCD shows pH (or ORP) and temperature simultaneously
Two set point, two SPDT
relay for on/off control
Symmetrical mode
operation eliminates electrical noise
HOLD feature deactivates
relays on contact closure; ideal for float switches or dual controller
applications
0 to 2000 second time
delay adjustment on all relays
Separately adjustable
high and low set point hysteresis bands prevent rapid contact switching
near set points
Push button two-point
calibration and electrode offset adjustment
Protected against
electromagnetic interference
LED indicators signal
control activities to monitor controller status
Battery back-up of
memory maintains set-up if power fails
The pH 800 controller provides ±0.01 pH accuracy for reliable,
easy-to-use on/off control of your pH and mV process. Two separately
programmable relays are ideal for acid feed/base feed applications. Use
the isolated 4-20 mA output to send data to your recorder or data
acquisition system for hard copy reports.
Customize your controller to fit your exact application! This unit is
selectable for pH or ORP (mV) control and manual or automatic
temperature compensation. The 1/4 DIN size fits into standard panel
cutouts. IP54 rated front panel keypad is weather resistant. Mounting
hardware included.
Click below to download Acrobat (.pdf)
file of:
pH
800 controller product bulletin
pH
800 controller manual
| 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, 4.01,
6.86, 7.00, 9.00, 9.18, or 10.00) |
| mVRange |
±1000 mV |
| mVResolution |
1 mV |
| mVAccuracy |
±1 mV |
| mVCalibration |
mV offset |
| TemperatureRange |
-9.9 to 125°C |
| TemperatureResolution |
0.1°C |
| TemperatureAccuracy |
±0.1°C |
| TemperatureCalibration |
offset up to ±5°C |
| Control type |
on/off |
| Number of inputs |
one |
| Number of set points |
two (high and low) |
| Separate alarm relay |
no |
| OutputControl |
2 SPDT relays, 6 A at 110 VAC, 250 VAC maximum |
| OutputCurrent |
isolated 4-20 mA, 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 |
10^6 MW |
| Electrical isolation |
yes, galvanically |
| Temperature Sensor |
100 W or 1000 W
Pt RTD |
| Temperature Compensation |
Automatic or manual from -9.9 to 125°C |
| Password protection |
two level password |
| Display |
dual line LCD, 4-digit upper and 3 1/2 digit
lower |
| Operating Temperature |
-10 to 60°C |
| Housing |
1/4 DIN |
| Dimensions |
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) |
| 