Device maintenance and repair   
7.3 Cleaning the Device Front 
  SIMATIC IPC PX-39A 
78  Operating Instructions, 08/2022, A5E51699601-AA 
7.3  Cleaning the Device Front 
The device is designed for low-maintenance operation. You should still clean the device front 
regularly, however. 
 
Unwanted reactions when cleaning the device 
You risk unintentional actuation of control elements if you clean the device while it is 
switched on. 
You may possibly trigger unwanted actions of the device or controller that are liable to 
cause personal injury or damage to the machinery. 
 
Always switch off the device before you clean it. 
Cleaning Agents 
 
Damage to the HMI device caused by impermissible cleaning agents 
Impermissible and unsuitable cleaning agents may cause damage to the HMI device. 
Use only a damp cloth to clean the device. 
 
See the notes under "Notes on ambient and environmental conditions (Page 23)". 
Cleaning the Device Front 
1.  Switch off the device. 
2.  Dampen the cleaning cloth. 
3.  Clean the device with the cleaning cloth.