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Data Acquisition Unit 2100 (DAU 2100)
- DAU 2100 is used together with an associated radar level gauge for local read-out and for connection of temperature sensors.
- A multiple spot temperature sensor with up to 14 temperature elements can be connected to the DAU. The unit is powered from, and communicates through the radar gauge to which it is connected. The DAU is intrinsically safe using zener barriers on the Transmitter Interface Card (TIC) in the gauge.
- The weatherproof box houses a printed circuit board with a cable terminal for connection of the temperature sensors, as well as the power and communication cable. Cable glands are located at the bottom of the box
Ambient operating temperature:
-40 °C to 70 °C (-40 °F to+158 °F)
Number of sensor elements:
Max. 14 per DAU
Temperature ranges:
Range 1: -50 to 125 °C (-58 to 257 °F)
Range 2: -50 to 300 °C (-58 to 572 °F)
Range 3: -200 to +150 °C (-330 to 302 °F)
Note: Temperature range for PTB approval is -20 to +90 °C (-4 to +194 °F)
Temperature resolution: 0.1 °C (0.18 °F)
Accuracy (excl. sensor): ±0.2 °C (±0.36 °F), for temperature range -20 to 100 °C (-4 to 212 °F)
±0.5 °C (±0.9 °F), for other ranges
Sensor elements: Pt-100 single or multiple spot
Display (optional): LCD with 6 digits
Available data on display: Level, Ullage, Spot Temperature, Average Temperature, Level Rate, Signal Strength
Ingress protection: IP 66 & 67
Hazardous location certifications:
ATEX: II 1G Ex ia IIB T4 Ga (Tamb. -40 °C to +65 °C)
IECEx: Ex ia IIB T4 (Tamb. -40 °C to +65 °C)
UL/UL-C: Class I, Div 1, Groups C&D
See also the list on page 46, “Certificates”
Power supply: Intrinsically safe supply from gauge
Field bus: Intrinsically safe local line from gauge
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