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7.2.3
Ready Function (rAEdY)
The second relay per channel makes according to standard a ready signal available.
Alternatively, this relay can be used in addition, as the second switching function.
Display
Description
Ready signal function activeted
Switching function activeted
Table 11
–
Values for the parameter rEAdY
7.2.4
Type of Gas Correction (Cor)
Sensors have normally been calibrated for measurements in nitrogen or air. With the aid of
the parameter Cor you can adjust the measurement channel to other type of gases
(PENNINGVAC sensors PTR81N, PTR225, PTR225N, PTR225S, PTR225SN, PTR237 and
PTR237N only).
For this proceed as follows
Select the parameter Cor.
Press the key marked PARA.
The correction factor is displayed.
Use the arrow keys to change the correction factor.
The value of the parameter is changed.
You can adjust the correction factor for a sensor within the range of 0.1
– 1.0 – 9.9. The
setting of 1.0 supplies the uncorrected measured values (for nitrogen or air).
7.2.5
Sensor Switch-on type (S-on)
This parameter defines how the PENNINGVAC sensors PTR81N, PTR225, PTR225N,
PTR225S, PTR225SN, PTR237 and PTR237N are switched on.
You can set up the switch-on type to the following:
HAnd
Manual. The sensor can be switched on by pressing the key marked UP.
(
Chapter 6.4.3.3 Switching on the High Vacuum Measurement Circuit, page 24)
ECt
Externally through optocoupler (static 12
– 24 V DC)
Hot
Warm start. The sensor is switched on automatically upon switching on the instrument. After
a power failure the measurement is started automatically.
CH 1
Through measurement channel 1. With the aid of the next parameter t-on you can define a
switch-on threshold. As soon as the pressure in measurement channel 1 drops below the
switch-on threshold, the sensor will be switched on.
