CHAPTER 6
(cont)
TELEVAC
2A
Display
Conditions
Traditional Analog
Output (Volts)
Linear
Analog Output (Volts)
-OLd
<-1 micron
+10.59
-0.05
-1
Incorrect ZERO adjust
+10.16
-0.01
0 microns
Lowest Reading
+10.00
0.00
20 Torr
Highest Reading
+0.88
+10.20
CabL
> 20 Torr
+0.00
+10.20
4A
Display
Conditions
Traditional
Recorder Output
Fact Option
(Volts)
Linear
Decade
Analog Output
(Volts)
Linear Analog
Output (Volts)
-OLd
<-5 microns
-0.07
+3.50
<-.05
-1
Incorrect ZERO
adjust
-0.01 +3.90 -0.01
0 microns
Lowest Reading
0.00
+4.00
0.00
990 Torr
Highest
Reading
+10.23 +9.99 +13.50
CAbL
>990 Torr
>+10.50
+10.11
+13.50
CHAPTER 7
TELEVAC
Calibration
All TELEVAC instrumentation is calibrated at the factory. No further calibration at the
customer’s facility should be required.
For a reliable re-calibration at a later date, it is necessary to have a reference standard
vacuum system whose pressure is known very accurately. For such a calibration, the
instrument, sensor tube and cable should be returned to TELEVAC for re-certification.
However, if the vacuum calibration certification is to be done at the customer’s facility,
equipment of certifiable accuracy should be used by a knowledgeable electronics
technician trained in vacuum calibration.
Phone:(215) 947-2500 fax:(215) 947-7464 e-mail: [email protected] web site:www.televac.com
6-8000-002 REV A
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