Cleaning Screen; Protective Membrane - Siemens SIMATIC HMI OP 73micro Operating Instructions Manual

Maintenance and servicing
10.1 Maintenance and service
10.1.1

Cleaning screen

Cleaning screen
Only applies to HMI devices with touch screen.
The HMI device touch screen can be cleaned when it is switched on and a project is running.
The configuration engineer must configure an operator control object for calling the Cleaning
Screen. Once the Cleaning Screen is activated, touch screen operation is locked for a
configurable period of time. The configuration engineer can lock the touch screen for a
duration between 5 and 30 seconds. The time remaining for the lock out is indicated by a
progress bar.
Locking operator control objects
Always open the Cleaning Screen or switch off the HMI device, before you clean the touch
screen while the system is running!
Pay attention to the end of the operating lock by the Cleaning Screen function. Ignoring this
instruction may lead to inadvertent wrong operation.
10.1.2

Protective membrane

Protective membrane
A protective membrane is available for the HMI device touch screens. The relevant ordering
information is provided in the Siemens Catalog ST 80. The protective membrane is not
included in the HMI device package.
The self-adhesive membrane prevents the screen from being scratched and soiled. The mat
surface of the membrane reduces reflections under unfavorable lighting conditions.
The protective membrane can be removed without leaving any adhesive residue on the
screen.
CAUTION
Removing the protective membrane
Never use sharp or pointed tools, such as a knife, to remove the protective membrane. This
may damage the touch screen.
138
WARNING
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0