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Industrial Process Controllers & Monitors

alpha-pH800 1/4 DIN pH/ORP Controller

  • User-Customization through Advanced Setup Menu offers flexibility in matching the controller's functions to suit individual's specific requirement

  • Automatic Calibration with Auto-Buffer Recognition eliminates mistakes during calibration

  • Symmetrical Mode Operation eliminates electronic noise problems when used with solution ground

  • One-Point Online Calibration without shutting down the line

  • Hold Relay for use with float switches/flow switches and other controllers as a failsafe function

  • 0 to 2000 Second Time Delay Adjustment on control and alarm delays

  • Two Galvanically Isolated Scaleable 0-20/4-20 mA Outputs for pH/ORP and temperature

  • Hysteresis Band Protection against rapid control switching of relays from wear and tear

  • Non-Volatile Memory retains all stored parameters and calibration data even if power fails

  • Large Dual Display shows pH (or ORP) with temperature simultaneously - features clear multiple icons, set points, and status messages 
  • Choice of Temperature Sensor Pt100/Pt1000 with 2-wire or 3-wire temperature input selection
  • Easy Installation and Wiring with detachable plug-in connectors

Applications

General: Useful for any batch or on-line type application that requires accurate pH or ORP control.

Water Purification/Treatment: Use for batch and on-line control of incoming process water, rinse water treatment, recirculating system and waste water treatment.

Industrial: Ideal for chemical processing, food processing. aquarium, pharmaceutical, hydroponics and waste control industries.

Specifications of alpha-pH800 Controller

Product Code

EC-PHCTP0800
pH Range 0.00 to 14.00 pH
Resolution & Accuracy 0.01 pH & ± 0.01 pH
Slope Range 40 to 70 mV
Offset Adjustment Range ± 120 mV
pH Buffer Options pH 1.00, 4.00, 6.86, 7.00, 9.00, 9.18, 10.00
No. of pH Calibration Points Up to 2 points
Temperature Range -9.9 to 125.0 oC
Resolution & Accuracy 0.1 oC & ± 0.5 oC
Sensor (for ATC) PT100/PT1000
Type of Controller Setting Limit
Pickup/Dropout Delay 0 to 2000 seconds
Signal Input Asymmetrical / Symmetrical
No. of Relays
Maximum Voltage
Maximum Current
High/Low  Hysteresis Band
2 SPDT; 1 Alarm
250 VAC
3A; 
0.1 to 1.0 pH; 10 to 100mV
Contact Set-points Lo/Lo; Lo/Hi; Hi/Lo; Hi/Hi (selectable)
Alarm Function Latching / Pulse (software)
Power 120 or 240 VAC/DC, 50/60 Hz
Dimensions 1/4 DIN (96 x 96 mm)



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