Eutech DO 1000, Dissolved Oxygen, Controller, Oakton Instruments

Eutech DO 1000 Dissolved Oxygen Controller from Oakton Instruments

Eutech DO 1000, Dissolved Oxygen, Controller, Oakton InstrumentsUse for accurate dissolved oxygen control in your wastewater or aquaculture process.

  • Large dual LCD shows DO plus temperature simultaneously

  • Two set point,two SPDT relay operation- choose from lo/lo hi/lo or hi/hi control

  • Select between three control modes: on/off, proportional pulse length or proportional pulse frequency

  • Separate alarm relay

  • Push button one- or two-point calibration

  • Key in salinity and pressure manually, the controller automatically calculates offset values

  • Selectable readout in mg/l, ppm or % saturation

  • Separately adjustable high and low set point hysteresis bands

  • Transmitter/recorder output for hard copy recording

  • Two level password protection

  • LED indicators signal control activities

  • Built-in memory backup

Eutech Instruments 1000 series 1/4 DIN dissolved oxygen controller features independent 100% and zero adjustment calibrations and offset adjustment capabilities to ensure high accuracy for your exact conditions. Its 0 to 2000 second selectable time delay and adjustable set point hysteresis bands means you can tailor control relay action to your specifications.

Each unit is selectable for isolated 0-20 or 4-20 mA transmitter/recorder output; 110 or 220 VAC; normally open or closed relays; and manual or automatic temperature compensation. The compact 1/4 DIN size fits into standard panel cutouts. The IP54 rated front panel keypad is weather resistant. Includes mounting hardware.

Click below to download Acrobat (.pdf) file of:
DO 1000 controller product bulletin
DO 1000 controller manual
Tech Tip: Comparison between Polargraphic and Galvanic DO sensor technologies

Measures Dissolved oxygen, °C
% saturationRange 0.00 to 200%
% saturationResolution 1%
% saturationAccuracy ±1.5% full-scale
mg/l (ppm)Range 0.0 to 20.00 mg/l (ppm)
mg/l (ppm)Resolution 0.01 mg/l (ppm)
mg/l (ppm)Accuracy ±1.5% full-scale
TemperatureRange 0 to 50°C
TemperatureResolution 0.1°C
TemperatureAccuracy ±0.5°C
CalibrationDissolved oxygen one or two points (100% and 0% saturation)
CalibrationTemperature offset up to ±5°C
Control type on/off or proportional (selectable)
Number of inputs one
Number of set points two (high and low)
Separate alarm relay yes
OutputControl 2 SPDT relays, 6 A at 110 VAC, 250 VAC maximum
OutputAlarm 1 SPDT relay, 6 A at 110 VAC, 250 VAC maximum
OutputPulse pulse length (0.5 to 20 sec) or pulse frequency (60 to 120 pulses per min)
OutputCurrent isolated 0-20.4-20 mA, with 20% to 100% full-scale scalable boundaries, 600 maximum load
Hysteresis 0.1 to 1.0 mg/l; 1 to 10%
Relay delay selectable, 0 to 2000 seconds
Input impedance 10^12 M
Electrical isolation yes, galvanically
Salinity correction manual input from 0.0 to 50.0 ppt; automatic correction
Barometric pressure correction manual input from 0.0 to 50.0 ppt; automatic correction
Temperature Sensor 100 Pt RTD
Temperature Compensation Automatic or manual from -9.9 to 125°C
Password protection two level password
Display dual line LCD, 4-digit upper and 3 1/2 digit lower
Operating Temperature -10 to 60°C
Housing 1/4 DIN
Dimensions 3.8" x 3.8" x 6.9" (9.6 x 9.6 x 17.5 cm)
Shipping weight 2.5 lbs (1.2 kg)

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