Product Details

Alpha COND 1000 1/4 DIN Conductivity Controller / Transmitter



Product Features


:: Ten Selectable Conductivity 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 controllers functions to suit individuals specific requirement

:: Choice of Cell Constant (0.01, 0.1, 1.0, 10.0) 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 measurement 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




Product Specification


Conductivity Range

0- 1.999, 19.99, 19.99,199.9,199.9, 1999, 5000 mS/cm; 19.99, 199.9 , 199.9 mS*/cm


±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


P control (pulse length/pulse frequency); limit control

Switching Hysteresis

0 to 10% full scale

Pickup / Dropout Delay

0 to 2000 seconds

Contact Outputs

3 SPDT relays

Switching Voltage / Current / Power

Max 250 VAC / Max 3A / Max 600VA

Alarm Functions

Function (Switchable)

Steady or fleet (pulse)

Pickup Delay

0 to 2000 seconds

Electrical Data and Connections

Power requirement

220 VAC (jumper selectable) ;48 to 62 Hz ; max. 7 VA

Transmitter Function

0/4 to 20 mA scalable outputs for Conductivity, galvanically isolated

Conductivity input

2-pin terminal


Max. 600 Ω

Connection Terminal

5-pole, 17-pole terminal, detachable blocks

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 EN 50082-1

Environmental Conditions

Maximum Relative Humidity

80 % up to 31 oC decreasing linearly to 50 % at 40 oC

Ambient Temp. Operating Range

0 to 50 °C

Mechanical Specifications


96 x 96 x 175 mm


Max. 0.7kg


IP 54 (Front Panel)


Ordering Information


Order No.



Alpha COND 1000 Controller / Transmitter with 0/4-20mA output and 220VAC setting (unit only)


Download Brochure

Alpha 800 & 1000 Series


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Calibration Solutions

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