- Isolated and reversible 4 to 20 mA output allow for proportional output, SPDT relays for On/Off control
- Graphic LCD for clear measurement display
- Automatic buffer recognition of US and NIST buffers
- Automatic temperature compensation
- Password protected ensures security of system
- RS-485 output for remote access allows multiple unit control from your computer
Cole-Parmer online controllers offer features found in more expensive models. Graphic LCD simultaneously displays measurement, temperature, electrode status, relay status, and transmitter current output. Calibration data is stored in memory; making the unit ready for measurement. Password protection, RS-485 for remote access, and the isolated and reversible 4 to 20 mA output offer extended data options with security.
The pH/ORP 500 (05802-22) controller has one isolated and reversible 4 to 20 mA output and five programmable on/off relays: four for pH and one for temperature--ideal for high/low control to activate an alarm, a pump, or another device. ATC element is a 10K NTC or 3K Ohm Balco or 1000 Ohm PT RTD user selectable.
SPECIFICATIONS
Control Type On/Off
Display Type LCD
Housing Material 1/4-DIN
Min pH (pH) 0
Max pH (pH) 16
pH Resolution 0.01
pH Accuracy ±1% 1 digit
Min mV (mV) -2500
Max mV (mV) 2500
mV Resolution 1Mv
mV Accuracy ±2mV
Min Temperature (
° C
) -10
Max Temperature (
° C
) 120
Min Temperature (
° F
) 14
Max Temperature (
° F
) 248
Temperature Resolution 0.1°
Temperature Accuracy ±0.3°C
Temperature Compensation Automatic
Password Protection Yes
Output Current 4-20mA
Output Relay 5 SPDT relays
Power (VAC) 115 / 230
Power (Hz) 50/60
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