8
NT311 ETH
TPU SENSOR
The TPU sensor has been designed with the aim of monitoring the environmental conditions of:
temperature, dust deposit
and humidity.
Place the sensor in an area protected from air flows, typically 2/3 of the total height of the environment to be
monitored (choice of installer according to the characteristics of the system). The area above the dust sensors should be
kept clear up to a distance of approximately 30cm.
Fix the TPU sensor on a flat surface using the appropriate anchoring holes, M4 screws with washer.
1) Fixing hole
2) P1 sensor
3) P2 sensor
4) P3 sensor
5) Left side of TU sensor hole
6) Fixing hole
TPU SENSOR NOTES
: do not fix the sensor upside down and do not cover the P1-2-3 dust detection sensors. Never
block the TU sensor input. Do not place near strong magnetic fields or excessive heat sources (higher than the product
specifications). Remove the dust with a brush and clean the sensor only with a dry cloth.
.
1) NT311 digital TPU IN input
2) TPU sensors digital TPU OUT
output (*)
(*) TPU sensors digital TPU OUT
output not available, planned for future
developments
Connections:
Connect the TPU IN input to the NT311 control unit, respecting the numbering
B1-B2-B3-B4
,
info on pages 12 and 13.
2
1
3
4
5
6
1
2
1MN0198 REV. 0
1MN0198 REV. 0
POWDER DEPOSIT IDENTIFICATION NOTES:
The response of the dust sensor depends on the characteristics of the dust deposit, such as: thickness,
colouring and material. It should be noted that: coarse deposits, dark colours (carbon black type) or the
formation of condensation can alter reading of the dust deposit sensors.
