Operation
28
GA09420_002_C0 – (2016-10) –
Leybold
4.5 Display
The transmitters with part numbers
120 91 and
120 94
have a built-in two-line display with an LCD matrix of 32×16 pixels. The first line
shows the pressure, the second line the pressure unit, the function and possible
errors. The background illumination is usually green, in the event of an error, it
changes to red. The pressure is displayed in mbar (default), Torr or Pa. The pres-
sure unit can be changed via RS232C interface (
→
29).
Pressure display
Pressure reading, pressure unit
Function display
(none) Pirani operation
Emission 25 A
Emission 5 mA
Degas
1000 mbar adjustment (Pirani)
Error display
BA sensor error
(red background illumination)
Internal data connection failure
(red background illumination)
What to do in case of problems
→
39.
no error
(green background illumination)
Pirani sensor error
(red background illumination)