INFICON BPG402-SD ATM to Ultra-High Vacuum Gauge (DeviceNet) - Manual (Page 25)

tira46e1 (2004-11) BPG402-SDv1.cp
25
Service
Code
Service Name Description of Service
61
h
Set Degas State Activates/deactivates degas mode according to
the parameter Degas State. Degas mode may
be terminated either automatically by device
timeout (3 min) or remotely by this service.
Parameter Data Type Semantics of Values
Degas
State
BOOL 0 switches Degas OFF
1 switches Degas ON
Degas is switched on only if the pressure is below 7.2E-6 mbar.
Service
Code
Service Name Description of Service
62
hex
Set Emission
State
Turns the filament on and off according to the
parameter Emission State
Parameter Data Type Description Semantics of Values
Emission
State
BOOL → below 0 turns emission OFF
1 turns emission ON
If the gauge is in the Emission User Mode “Manual”, please keep attention at the
following points:
The service SET EMISSION STATE Î ON may be executed only, if the pressure
is below 2.4E-2 mbar. If the pressure is higher, an Object State Conflict error mes-
sage will be returned.
If the pressure rises above 3.2E-2 mbar, the gauge will switch off the emission
automatically. The gauge will then show the pirani value.
If the gauge is measuring in the ion gauge measuring range and the service Set
Emission State
Î OFF ist executed, the emission will be switched off and the mi-
nimum Pirani value 1E-3 will be displayed.
2.4.5 Object-Specific Services
on Instance 2 / Hot
Cathode Ion Gauge
2.4.5.1 Set Degas State
Set Degas State Request
Service Data Field
parameters
2.4.5.2 Set Emission State
Set Emission State Request
Service Data Field
parameters