TP48200A-HX09A2, TBC300A-TCA2 Outdoor Power
System
User Manual
4 Maintenance
Issue 02 (2019-02-26)
Copyright © Huawei Technologies Co., Ltd.
75
4.4.12 Replacing a Temperature and Humidity Sensor
Prerequisites
An ESD wrist strap, ESD gloves, ESD box or bag, cabinet door key, and required tools
are available.
The new temperature and humidity sensor is intact.
Procedure
Step 1
Connect the ground cable of the ESD wrist strap, and wear the ESD wrist strap and ESD
gloves.
Step 2
Remove the temperature and humidity sensor cable from the user interface module (UIM), as
shown in
Figure 4-25
Removing the temperature and humidity sensor cable
Step 3
Remove the temperature and humidity sensor, as shown in
1.
Hold down the button on the sensor and remove the upper cover.
2.
Record the positions where cables connect to the base and remove the cables.
3.
Unscrew the sensor base.