alpha,pH800,1/4 DIN,pH,ORP,Controller,Eutech,Instruments

alpha-pH800 1/4 DIN pH/ORP Controller From Eutech Instruments

alpha,pH800,1/4 DIN,pH,ORP,Controller,Eutech,Instruments

Industrial Process Controllers & Monitors

alpha,pH800,1/4 DIN,pH,ORP,Controller,Eutech,Instrumentsalpha-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

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

  • 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


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.


Product Specification

pH Range 0.00 to 14.00 pH
Resolution & Accuracy 0.01 pH & 0.01 pH
mV Range -999 to 1000 mV
Resolution & Accuracy 1/ 2 mV
Temperature Range -10 to 110 C
Resolution & Relative Accuracy 0.1 C & 0.5 C
Temperature Sensor Pt 100 (3-wire)
Temperature Compensation Auto / Manual (0C to 100C)
Set Point and Controller Functions
Function Limit Control
Switching pH/ORP Hysteresis 0.00 to 2.00 pH or 0 to 100 mV
Contact Outputs, Controller 2 SPDT relays
Switching Voltage/ Current/ Power Max 250 VAC/ Max 3A/ Max 600 VA
Electrical Data and Connections
Power Requirement 85 to 260 VAC, 50/60 Hz or DC
Signal Output/ Load 4-20mA galvanically isolated / 200Ω
pH/ORP Input BNC (1012 Impedence)
Connection Terminals 3 detachable connectors (3-pin; 7-pin & 9-pin terminal blocks)
Main Fuse 250mA, Anti-surge (BUSSMAN S504 + 250mA)
Environmental Conditions
Maximum Relative Humidity 80% up to 31C decreasing linearly to 50% at 40C
Ambient Temp. Operating Range -10 to 50 C (14 F to 122F)
Mechanical Specifications
Dimensions 96 x 48 x 150 mm
Weights 300 g (boxed)