Global Water In the US, call toll free: 1-800-876-1172
International phone: 1-979-690-5560
Fax: 1-979-690-0440
E-mail: Globalw*
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Remote Monitoring

Industrial Control

pH controllers to monitor and control pH in process water or wastewater.
pH controllers,pH controller FEATURES:
  • Automatic temperature compensation
  • Dual ON/OFF relays
  • Large LCD screen
  • Front panel adjustment
To Order Call 1-800-876-1172
pH Controllers Options & Prices
On this page:

. pH Controllers Description
. pH Controllers Specifications
. pH Controllers Options & Prices

Downloads (PDF):

. pH Controllers Brochure
. pH Controllers Manual

Additional Information:

. pH Controller Connection Diagrams
. pH Controller pH electrode calibration methods
. pH Controller pH measurement values explained
. pH Controller pH electrode calibration explained
. pH Controller electrode maintenance explained
. pH Controller electrode reference systems and diaphragms explained
. Product Support
. Water Quality Sensors

pH Controllers Description
Global Water's pH Controllers are packaged in a 1/4 DIN panel mount controller box with dual SPDT Hi/Lo relays, manual set points and calibration potentiometers set into the front of the pH controller panel.  The pH controllers feature an isolated 4-20 mA current output and an external pH/ORP select switch.  The pH Controller's display is a large 0.5 inch LCD screen.  pH controller sensor connectors are a BNC input and spade lug screw type connector block.  The pH Controllers require a Pt-100 ATC probe or a simulation resistor for temperature compensation.

Global Water's pH Controllers are precise instruments for the measurement and control of pH and mV (ORP).  Two output relays are provided on the pH Controllers for ON/OFF control.  The pH Controller's isolated 4-20 mA current output covers the input control range of 0 to 14 pH and 0 to 1400 mV.  The pH Controller's DIN housing allows each pH controller to fit into standard panel cutouts, while providing industrial weatherproof and environmental housings for your pH control system.
pH Controllers Specifications
pH Controller:
     pH: 0 to 14.0 pH
     mV: +1999 mV
     pH: 0.01 pH
     mV: 1.0 mV
     pH ( digit): +0.01 pH
     mV ( digit): 0.1 %

Controller Input Range:
Relay Outputs:
     pH: 0 to 14.00 pH
     mV: 1999 mV
Current Output:
     pH: 0 to 14.00 pH
     mV: 0 to 1400 mV
Relay Outputs:
     Maximum rated load: 5 Amp at 115 VAC, 2.5 Amp at 230 VAC resistive load
     Isolated 4-20 mA output
     Range: Over input span

Accuracy: 0.1% of span
Isolation voltage: 500 VDC minimum
Load Resistance: 550 Ohms minimum
Input Impedance: >1012 ohms
Temperature Compensation: Auto 0.0 to 100.0 C
Temperature Sensor: PT-100, Alpha = 0.00385
Readout: " high LCD display
Power Source: 115 VAC, 230 VAC 15% 50/60 Hz
Dimension: 3.75x3.75x4.75 (96x96x119.3mm)
Weight: 2 lbs (0.77 kg)
Mounting: 1/4 inch DIN
pH Controllers Options & Prices
Prices listed are for United States and Canada only.  Call or e-mail us for pricing in other countries.
Terms and Conditions

3675 pH Controller (PN# HB0100)
Does not include pH/Ref Electrode or ATC probe
600P pH Controller pH/Ref Electrode (PN# DO0010)
pH sensor: epoxy with BNC connector.  Comes with a 3 ft cable.  Max Temp. 60 C
Pricing Industrial pH probe,Industrial pH controller
600A-ST Pt-100 ATC probe, SS (PN# HB0110)
Banana Plugs, 30 inch cable.
Pricing Industrial pH sensor
600E-ORP pH Controller ORP Electrode (PN# DO0510)
ORP sensor: epoxy with BNC connector, Max Temp. 60 C, 3-ft cable.
Pricing Industrial ORP sensor,Industrial ORP controller
3671 pH/ORP Controller Pricing
6309POT pH/ORP Controller Pricing
PC320 pH Controller Pricing
WQ Water Quality Sensors Pricing
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