Total pressure gauge and controller TPG 300 - Fergutec.com
Total pressure gauge and controller TPG 300 - Fergutec.com
Total pressure gauge and controller TPG 300 - Fergutec.com
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4.7.5 »PE measurement underrange control«<br />
group<br />
The behavior of switching functions assigned to the cold cathode<br />
measuring circuit (PE) can be adjusted when underrange occurs<br />
(→ section 4.5.2) (except in the case of self assignment).<br />
0 10<br />
Display Meaning<br />
1 2 3 4 A B<br />
Pu 0 »UnderRng« is interpreted as valid measured<br />
value; the switching function remains »on«<br />
Pu 1 »UnderRng« is interpreted as an error; the<br />
switching function changes to »off«. The switching<br />
function does not change to »on« until the<br />
measured value has remained within the<br />
measurement range of the cold cathode measuring<br />
circuit for at least 10 seconds.<br />
Cold cathode measuring circuits for 10 -11 mbar sometimes<br />
require more than 10 seconds for the transition<br />
«OverRng» «UnderRng» <strong>and</strong> thus lead the switching<br />
function being »on« for a short time.<br />
4.7.6 »Measurement unit« group<br />
Select the desired measurement unit:<br />
0 10<br />
BG 800 <strong>300</strong> BE / A (0105) <strong>TPG</strong> <strong>300</strong> 28<br />
mbar<br />
Torr<br />
Pa<br />
1 2 3 4 A B<br />
The modification is made immediately.<br />
The threshold values for the switching functions are<br />
adapted automatically.