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CH 2
Through measurement channel 2. With the aid of the next parameter t-on you can define a
switch-on threshold. As soon as the pressure in measurement channel 2 drops below the
switch-on threshold, the sensor will be switched on.
CH 3
Through measurement channel 3. This setting is only available in the case of the DISPLAY
THREE. With the aid of the next parameter t-on you can define a switch-on threshold. As
soon as the pressure in measurement channel 3 drops below the switch-on threshold, the
sensor will be switched on.
7.2.6
Sensor Switch-on Value (t-on)
This parameter will only appear when the sensor switch-on time has been set to CH 1, CH
2 or CH 3 (
Chapter 7.2.5 Sensor Switch-on type (S-on), page 31).
Through the parameter t-on you can define a switch-on value. If the pressure in the
respective measurement channel drops below the switch-on value, the PENNINGVAC
sensors PTR81N, PTR225, PTR225N, PTR225S, PTR225SN, PTR237 and PTR237N are
switched on.
7.2.7
Sensor Switch-off type (S-oFF)
This parameter defines how the
PENNINGVAC sensors PTR81N, PTR225, PTR225N,
PTR225S, PTR225SN, PTR237 and PTR237N are switched off.
You can set the switch-off type to the following:
HAnd
Manual. The sensor can be switched off by pressing the key marked DOWN.
(
Chapter 6.4.3.4 Switching off the High Vacuum Measurement Circuit, page 25)
ECt
Externally through optocoupler (static 12
– 24 V DC)
SELF
Self monitoring. With the aid of the next parameter t-off you can define a switch-off threshold.
When the pressure at the sensor exceeds the switch off threshold, the sensor will be
switched off.
CH 1
Through measurement channel 1. With the aid of the next parameter t-off you can define a
switch-off threshold. As soon as the pressure in measurement channel 1 exceeds the
switch-off threshold, the sensor will be switched off.
CH 2
Through measurement channel 2. With the aid of the next parameter t-off you can define a
switch-off threshold. As soon as the pressure in measurement channel 2 exceeds the
switch-off threshold, the sensor will be switched off.
CH 3
Through measurement channel 3. This setting is only available in the case of the DISPLAY
THREE. With the aid of the next parameter t-off you can define a switch-off threshold. As
soon as the pressure in measurement channel 3 exceeds the switch-off threshold, the
sensor will be switched off.
