alpha,RES1000,1/4 DIN,Resistivity,Controller,Eutech,Instruments

alpha-RES1000 1/4 DIN Resistivity Controller From Eutech Instruments

alpha,RES1000,1/4 DIN,Resistivity,Controller,Eutech,Instruments

Industrial Process Controllers & Monitors

alpha,RES1000,1/4 DIN,Resistivity,Controller,Eutech,Instrumentsalpha-RES1000 1/4 DIN Resistivity Controller

  • Two Selectable Resistivity Measurement Ranges in one controller via its IP54 front panel. High-level accuracy of ±1% of full scale can be obtained with appropriate cells and correct temperature coefficient

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

  • Choice of Cell Constant (0.01, 0.1) for accurate control in any solution

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

  • Two Level Password Protection prevents un authorized tampering with settings

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

  • Galvanically Isolated Scalebale 0-20/4-20 mA Outputs

  • Wash Contact Relay controls electrodes cleaning systems at desired duration and frequency

  • Adjustable Hysteresis (Dead Band) prevents rapid contact switching near set point

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

  • Line Resistance Compensation against intrinsic cable resistance for longer cable connection

  • Large Dual Display shows DO 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: Use for virtually any batch or online applications where rapid, accurate control. Great for OEM/system integrator.

Water Purification/Treatment: Suitable for pure, ultrapure, and reagent grade water batches of incoming process water.

Regulatory: Hook to recorder to document data for regulatory compliance.


Product Specification

Conductivity Range 0.00 to 19.00 mΩ/cm
0.000 to 1.999 mΩ/cm
0.01 mΩ/cm
0.001 mΩ/cm
Accuracy 1 % full scale
Temperature Range -9.9 to 125 C
Resolution &
Relative Accuracy
0.1 C &
0.5 C
Temperature Sensor Pt 100/ Pt 1000 (jumper selectable)
Temperature Compensation Auto / Manual (reference at 25 C)
Set Point and Controller Functions
Function Limit / Proportional (pulse or frequency) controller
Switching Hysteresis 0 to 10% full scale
Pickup / Dropout Delay 0 to 2000 seconds
Contact Outputs, Controller
2 potential free change-over contacts
Switching Voltage / Current / Power Max 250 VAC / Max 3A / Max 600VA
Alarm Functions
Function (Switchable) Launching or Pulse
Pickup Delay 0 to 2000 seconds
Switching Voltage / Current / Power Max 250 VAC / Max 3A / Max 600VA
Electrical Data and Connections
Power requirement 110/ 220 VAC (jumper selection)
Frequency 48 to 62Hz
Signal Output 0/4 to 20mA, galvanically isolated
Load Max. 600 Ω
Connection Terminal Terminal blocks 5-pole/ 17-pole, removable
Main Fuse/ Fine Wire Fuse Slow-blow 250 V/ 100 mA
EMC Specifications
Emitted Interference
According to EN 50081-1
Immunity to Interference According to EN 50082-1
Environmental Conditions
Maximum Relative Humidity 10 to 95%, non-condensing
Ambient Temp. Operating Range 0 to 50 C
Mechanical Specifications
Dimensions 175 x 96 x 96 mm
Weights Max. 0.7kg
Material ABS with polycarbonate
Insulation IP 54/ IP 65