pH Controllers with Dual Setpoint

pH Controllers with Dual Setpoint

pH 500 series of controllers offer exceptional value for your money. They are simple-to-operate, microprocessor-based process meters packed with features for the biological laboratory. For more flexibility and better resolution than chart recorders, any two points between 0 and 14 pH can be chosen to correspond to the analog output spans. Several pH 500 models are equipped with a bi-directional RS232C port. Push button password programming prevents tampering. The microprocessor memory is fully programmable and has 3 months backup power supply. The Fail Safe Alarm system protects the pH 500 against the pitfalls of process control, like power interruption or line failure. With pH 500 quick 1, 2 or 3 point calibration at pH 4.01, 7.01 and 10.01 comes standard. The temperature can be manually or automatically compensated for. Increased automation has made computer compatibility a necessity for process control instrumentation.

Item# Description U.S. List Price Quantity
72-2018 pH 500 Controller, Dual Setpoint, RS232 Output, Proportional Controls, 230 VAC, 50 Hz
72-2017 pH 500 Controller, Dual Setpoint, RS232 Output, Proportional Controls, 115 VAC, 60 Hz
72-2016 pH 500 Controller, Dual Setpoint, Analog Output, Proportional Controls, 230 VAC, 50 Hz
72-2015 pH 500 Controller, Dual Setpoint, Analog Output, Proportional Controls, 115 VAC, 60 Hz
72-2013 pH 500 Controller, Dual Setpoint, RS232 Output, On/Off Controls, 115 VAC, 60 Hz
72-2012 pH 500 Controller, Dual Setpoint, Analog Output, On/Off Controls, 230 VAC, 50 Hz
72-2011 pH 500 Controller, Dual Setpoint, Analog Output, On/Off Controls, 115 VAC, 60 Hz
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• Hi-tech pH 500 controller
• The new measure of value
• Simple to operate
• Microprocessor-based
pH 500 series of controllers offer exceptional value for your money. They are simple-to-operate, microprocessor-based process meters packed with features for the biological laboratory. For more flexibility and better resolution for chart recorders, any two points between 0 and 14 pH can be chosen to correspond to the analog output spans. Several pH 500 models are equipped with a bi-directional RS232C port. Push button password programming prevents tampering. The microprocessor memory is fully programmable and has 3 months backup power supply. The Fail Safe Alarm system protects the pH 500 against the pitfalls of process control, like power interruption or line failure. With pH 500 quick 1, 2 or 3 point calibration at pH 4.01, 7.01 and 10.01 comes standard. The temperature can be manually or automatically compensated for. Increased automation has made computer compatibility a necessity for process control instrumentation.
This unit can be adapted to control the pH of biological preparations such as cell cultures by controlling flow of a pH reducing gas such as CO2. The CO2 gas can be regulated by on/off proportional control to save gas.
Specifications72-201872-201772-201672-201572-201372-201272-2011
Analog OutputGalvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)Galvanically isolated 0 to 1mA, 0 to 20mA and 4 to 20mA (max resistive load 1 KW), 0 to 5 VDC, 1 to 5 VDC and 0 to 10 VDC (min resistive load 1 KW)
Battery Type230V 115V 230V 115V 115V 230V 115V
Digital OutputRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolatedRS232 bi-directional opto-isolated
Environment (RH)85% non-condensing85% non-condensing85% non-condensing85% non-condensing85% non-condensing85% non-condensing85% non-condensing
Environment (
Environment (
Input Impedance1012?1012?1012?1012?1012?1012?1012?
LoggingAutomatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9Automatic (with Pt 100) or manual from -9.9
Meter Dimensions (H x W x D) English6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in6.7 x 5.7 x 5.7 in
Meter Dimensions (H x W x D) Metric170 x 144 x 144170 x 144 x 144170 x 144 x 144170 x 144 x 144170 x 144 x 144170 x 144 x 144170 x 144 x 144
Panel Output English5.5 x 5.55.5 x 5.55.5 x 5.55.5 x 5.55.5 x 5.55.5 x 5.55.5 x 5.5
Panel Output Metric140 x 140 mm140 x 140 mm140 x 140 mm140 x 140 mm140 x 140 mm140 x 140 mm140 x 140 mm
Readout4444444
Setpoint Relays1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)1 or 2; SPST NO contact outputs 5 A-250 VAC, 5 A-30 VDC (resistive load)
Temperature Range (
Temperature Resolution (
Typical EMC Deviation of Temperature (
Typical EMC Deviation of mV
Typical EMC Deviation of pH
Weight English3.5 lb3.5 lb3.5 lb3.5 lb3.5 lb3.5 lb3.5 lb
Weight Metric1.6 kg1.6 kg1.6 kg1.6 kg1.6 kg1.6 kg1.6 kg
mV Range-600.0 t0 600.0-600.0 t0 600.0-600.0 t0 600.0-600.0 t0 600.0-600.0 t0 600.0-600.0 t0 600.0-600.0 t0 600.0
mV Resolution0.20.20.20.20.20.20.2
pH Calibration1, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.011, 2 or 3 point with buffers 4.01, 7.01 and 10.01
pH Range0.00 to 14.000.00 to 14.000.00 to 14.000.00 to 14.000.00 to 14.000.00 to 14.000.00 to 14.00
pH Resolution0.010.010.010.010.010.010.01