Controller pH/ORP 1/4 DIN

• 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