Eutech Instruments

Eutech Instruments

alpha-DO1000 1/4 DIN Dissolved Oxygen Controller
From Eutech Instruments

2-Wire,pH,ORP,Conductivity,Dissolved,Oxygen,Temperature,Transmitters,Eutech,Instruments

Industrial Process Controllers & Monitors

alpha,DO1000,1/4 DIN,Dissolved,Oxygen,Controller,Eutech,Instrumentsalpha-DO1000 1/4 DIN Dissolved Oxygen Controller

  • Built-In Programmable Limit, Proportional (Pulse Length or Pulse Frequency) - ideal for precision process control applications

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

  • Readout in mg/L, pm or % saturation

  • Barometric and Salinity Automatic Compensation after manual input

  • 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

  • Choice of General Purpose or Low DO measurement for wider applications

  • 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

  • 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

alpha,DO1000,1/4 DIN,Dissolved,Oxygen,Controller,Eutech,Instruments E-Brochure

alpha,DO1000,1/4 DIN,Dissolved,Oxygen,Controller,Eutech,Instruments Instruction Manual

Applications:

General: Useful for monitoring temperature and control of DO in wastewater treatment and aquaculture applications. Use with valves, blowers or aerators to ensure proper system operation.

Specifications:

Product Specification

 Description
DO Range mg/l of oxygen: 0.00 – 20.00 mg/l
% saturation of oxygen: 0.0 to 200.0% saturation
Resolution & Accuracy 0.01 mg/l or 0.1%
± 1.5% of full scale reading
No. of calibration Points 1 (100% saturation) or
2 (100% and 0% saturation) points
Flow rate ±1 – 2 cm/sec
(dependent on both Temperature & Oxygen level)
Response Time 40 – 50 secs to attain 95%
Temperature Range -9.9 to 125 °C
Resolution & Relative Accuracy 0.1 °C & ±0.5 °C
Temperature Sensor Pt 100
Temperature Response Approx. 1 min/ °C
Temperature Compensation Auto / Manual (reference at 25 °C)
Pressure Input K. Pas/mm Hg (Manual input and Automatic correction)
Salinity Input 0.0 to 50.0 ppt (Manual inout and Automatic correction)
Set Point and Controller Functions
Function Limit / Proportional (pulse or frequency) controller
Adjustable Period with Pulse Length Controller 0.5 to 20 secs
Adjustable Period with Pulse Frequency Controller 60 to 120 pulses/min
Switching Hysteresis 0.1 to 1.0 mg/l or 0 to 10.0%
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 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 40

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