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DO402G Dissolved Oxygen Converter
Brand: Yokogawa Electric CorporationFlexibility, reliability and low maintenance are among the benefits provided by the EXA DO402G dissolved oxygen converter.
Designed to meet the exacting requirements of measuring dissolved oxygen in the modern industrial environment, it contains many features to ensure the best precision whatever the application.
The DO402G accepts inputs from both galvanic and polarographic sensors.
Percent saturation, mg oxygen/l water, and ppm DO can be displayed and transmitted. Compensation for atmospheric pressure altitude, salinity and temperature are included for the best accuracy of measurement.
Features- Versatile sensor inputs
- On-line sensor checking monitors integrity of membrane
- Event logbook in software
- Four fully configurable SPDT contact outputs
- Two fully configurable mA outputs
- Built-in PI controller
- Easy to use EXA control panel
Specifications
Accuracy
- ± 0.05 mg/L or ± 0.5 % of Full Scale whichever is greater
- ± 0.3° C (± 0.54° F) - Pt2000, 22k NTC, PB36
- ± 0.4° C (± 0.72° F) - Pt100
Alarm
- High/Low
Ambient Temperature Range
- -10° to 55° C (14° to 131° F) - Ambient Operating Temperature
Applications
- Industrial Applications
Approvals & Certifications
- CSA C22.2 No. 94.2, CAN/CSA 61010-1
- EMC EN 61326-1 Class A, EN 61326-2-3, EN 61000-3-2 Class A, EN 61000-3-3, RCM: EN 61326-1 Class A, Korea Electromagnetic Conformity, Standard Class A
- UL Standard No. 61010-1, 50E
Burn-Out
- Burn Down 0/3.5 mA to Signal Failure
- Burn Up 22 mA
Cable Entry
- Six PG 13.5 Nylon Glands
Conduit Connection
- 1/2” NPT - Adapter
- G 1/2” - Adapter
Consumption
- 10 VA for Steady Operation - Power Consumption
Cover Material
- Flexible Polycarbonate Window
Delay Time
- 0 to 200 seconds - Relay
Diameter
- 0.24” to 0.47” (6 to 12 mm) - Cable Outside Diameter
Display
- 0.27” (7 mm) High - Message Display
- 0.49” (12.5 mm) High - Main Display
- 3-1/2-Digits - Main Display
- 6 Alphanumeric Characters, 7 mm High - Message Display
- LCD Display
Electrical Connectors
- 26 to 12 AWG (0.13 to 4 mm²)
- Cable Terminals up to 2.5 mm² Finished Wires
Electrical Contacts
- Normally Closed & Normally Open
Electrical Rating
- 100 VA, 250 Vac, 5 A, Max.
- 250 Vdc, 5 A, 50 W, Max.
Enclosure Finish
- Epoxy Baked Finish
- Moss Green (Munsell 06 GY3.1/2.0) - Cover Color
- Off-White (Munsell 2.5Y8.4/1.2) - Case Color
Environmental Protection
- IP65
- NEMA 3S
- NEMA 4X
Frequency
- 50/60 Hz (± 5 %)
Function
- 3-Digits Programmable Password Protection
Humidity
- 10 to 90 % Relative Humidity, Non-Condensing
Input
- 0 to 50 μA to for Galvanic Sensors
- 0 to 500 NA to for Polarographic or Optical Sensors
Linearity
- ± 0.03 mg/L or ± 0.5 % of Full Scale whichever is greater
- ± 0.3° C (± 0.54° F) - Pt2000, 22k NTC, PB36
- ± 0.4° C (± 0.72° F) - Pt100
Load
- 600 ohms, Max.
Materials of Construction
- Carbon Steel - Hood
- Stainless Steel - Mounting Bracket, Hood, Tag Plate
Measuring Range
- 0 to 50 mg/L (ppm) - Dissolved Oxygen
Mounting
- Panel Mount
- Pipe
- Wall Mounted
Output
- 0-20 mA
- 4 SPDT Relays with LED Indicators
- 4-20 mA
Power Requirement
- Lithium Batteries
Power Supply
- 100 Vac (85-115 Vac)
- 115 Vac (97.8-132.2 Vac)
- 230 Vac (195.5-264.5 Vac)
Pulse Range
- 5 to 100 seconds
Repeatability
- ± 0.03 mg/L or ± 0.5 % of Full Scale whichever is greater
- ± 0.1° C (± 0.18° F) - Pt2000, 22k NTC, PB36, Pt100
Resistance
- 10 ohms or Less - on Resistance for Contact Input
- 100 kiloohms or more - Off Resistance for Contact Input
Response Time
- 10 seconds for 0 to 90 %
Sensor, Probe Type
- 22k NTC
- PB36
- Pt100
- Pt1000
Span - Maximum
- 300 % Saturation
- 50 mg/L (ppm) - Dissolved Oxygen (DO) Concentration
- 50° C (122° F)
Span - Minimum
- 1 mg/L (ppm) - Dissolved Oxygen (DO) Concentration
- 10 % Saturation
- 25° C (77° F)
Storage Temperature
- -30° to 70° C (-22° to 158° F)
Temperature Range
- 0° to 50° C (32° to 122° F)
Turn-On Time
- 0.5 seconds or more - for Contact Input
