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2-wire room temperature transmitter
- Room temperature measurement
- Complete with sensor and transmitter
- 4...20 mA output in 2-wire connection
- Easy mounting
- Measurement range 0...70°C
- Supply 8...35 VDC
- Electronic temperature measurement in for instance control rooms, offices, heating plants, factories, living rooms, and similar dry rooms.
- Suitable as a transmitter for controllers, trip amplifiers, displays, or superior SCADA systems.
- A precision Pt100 sensor with a small mass is mounted on the transmitter input thereby achieving a fast response time.
- The 2-wire output signal of 4...20 mA is proportional and linear to the temperature value that influences the built-in sensor.
- A reversed output signal of 20...4 mA may be ordered.
- A number of different sensor error detection options may be ordered.
- Protected against polarity reversal.
- The bottom of the cabinet can be attached to a wall by two screws.
- Visible or hidden cable access.
|Operating temperature||0°C to +70°C|
|Relative humidity||< 95% RH (non-cond.)|
|Dimensions (HxWxD)||70 x 121 x 25 mm|
|Weight approx.||95 g|
|Wire size||1 x 1.5 mm|
|Supply voltage||8.0...35 VDC|
|Internal power dissipation||25 mW…0.8 W|
|Response time||10 s (@ 0.5 m/s)|
|Voltage drop||8.0 VDC|
|Warm-up time||5 min.|
|Signal / noise ratio||Min. 60 dB|
|Accuracy||Better than 0.3°C|
|Signal dynamics, input||17 bit|
|Signal dynamics, output||16 bit|
|Effect of supply voltage change||< 0.005% of span / VDC|
|Temperature coefficient||< ±0.01% of span / °C|
|Linearity error||< 0.1% of span|
|EMC immunity influence||< ±0.5%|
Common input specifications
|Max. offset||50% of max.°C|
|Sensor current||> 0.2 mA, < 0.4 mA|
|Min. measurement range||25°C (span)|
|Signal range||4…20 mA|
|Min. signal range||16 mA|
|Load (@ current output)||≤ (Vsupply - 8) / 0.023 [Ω]|
|Load stability||≤ 0.01% of span / 100 Ω|
|NAMUR NE43 Upscale/Downscale||23 mA / 3.5 mA|
Common output specifications
|Updating time||135 ms|
|of span||= of the presently selected range|
Observed authority requirements