Schneider Electric STD400 Catalog Page
Duct Temperature
Sensors
STD400
Temperature Sensors
STD400
The STD400 is an electronic averaging transmitter that converts the average
measured temperature into an electric current signal 0-10Vdc. The transmitter is
used for temperature measurement in air ducts.
The STD400-04 has an immersion length of 0.4m. Measurement is made at 5
points equally spread over the length. A copper tube protects the 5 measuring
points. The tube can be bent to a minimum radius of 50 mm to allow the probe to
be shaped across the duct.
For larger ducts use the STD410-30 or STD410-60 transmitters with immersion
length of 3m or 6m. Measurements are taken over the entire sensor length. The
transmitter is delivered as a complete unit, comprising a junction box with amplier
and sensors.
The transmitters should be connected with a 3-wire cable, which serves both as
power supply and for signal transmission.
Specications
Output 2-Wire, 4-20 mA
Range -50 to +50 °C; 0 to 100 °C
Accuracy ±0.4 % of range
Supply 24Vac ±10% or 15-36Vdc
Part
number
006920681 STD400-04 0/100
006920701 STD400-04 -50/50
006920721 STD400-30 0/100
006920741 STD400-30 -50/50
006920761 STD400-60 0/100
006920781 STD400-60 -50/50
Model
number
Description
Average Duct Temperature
Sensor STD400-04 0/100
Average Duct Temperature
Sensor STD400-04 -50/50
Average Duct Temperature
Sensor STD400-30 0/100
Average Duct Temperature
Sensor STD400-30 -50/50
Average Duct Temperature
Sensor STD400-60 0/100
Average Duct Temperature
Sensor STD400-60 -50/50
Probe
length
(mm)
400
400
3000
3000
6000
6000
System
All
All
All
All
All
All
14
CAT-SENSORS-EU.BU.N.EN.2.2012.0.01.CC
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