946 Controller Instruction Manual
pg. 97
9.5 Capacitance Manometer Control Commands
Command
Parameter Response Function
RNGn
(n=1 to 6)
d.dd E
ee
d.dd E
ee
Query or set the full-scale pressure measurement range
for a capacitance manometer. Valid range is from 0.01
to 10000, and default range is 1000 Torr.
CMTn
(n=1 to 6)
ABS
or
Diff
ABS
or
Diff
Query or set the Capacitor Manometer type,
either absolute or differential.
BVRn
(n=1 to 6)
5 or 10
for
ABS
1B, 5B,
1U, 5U or
10U
for Diff
5 or 10
for
ABS
1B, 5B,
1U, 5U or
10U
for Diff
Query or set the full scale voltage output
range for a capacitance manometer. Default
= 10V.
ATZn
(n=1 to 6)
OK
or
NAK
Zero a differential Capacitance Manometer on channel
n.
VACn
(n=1 to 6)
OK
or
NAK
Zero a capacitance manometer on channel n. Execute
only when the signal is less than 5% of the full scale.
AZn
(n=1 to 6)
A1, B1,
A2, B2,
C1, C2, NA
A1, B1,
A2, B2,
C1, C2, NA
Query or set capacitance manometer autozero control
channel n, or disable autozero (NA). Execute only when
the signal is less than 5% of the full scale.
Table 9-5 946 Capacitance Manometer Serial Commands
9.6 Convection Pirani, Convectron and Pirani Control Commands
Command Parameter Response Function
ATMn
(n=1 to 6)
d.ddE+ee
(ambient
pressure)
d.ddE+ee
Send an atmospheric pressure to perform ATM
calibration. The PR/CP must be at atmospheric pressure
when running ATM calibration. Valid range is from 100
to 1000.
VACn
(n=1 to 6)
OK
or
NAK
Zero a PR/CP on channel n. Execute only when the
pressure reading is less than 1X10
-2
Torr.
AZn
(n=1 to 6)
A1, B1,
A2, B2,
C1, C2, NA
A1, B1,
A2, B2,
C1, C2, NA
Query or set an autozero (CC or HC) control channel n
for a PR/CP, or disable autozero (NA). Execute only
when the pressure reading is less than 1X10
-2
Torr.
GTn
(n=1 to 6)
Nitrogen
Argon
Helium
Nitrogen
Argon
Helium
Query or set a gas type for PR/CP on channel n.
CPn
(n=1 to 6)
ON
or
OFF
ON
or
OFF
Query the channel power status for PR, CP, HC or high
voltage status for CC.
Turn ON/OFF the channel power for PR, CP, HC, or
high voltage for CC).
PTn
(n=1 to 6)
AUTO
PR
CP
AUTO
PR
CP
AUTO-PR
AUTO-CP
Query or set Pirani sensor type on channel n.
If Pirani type is set to PR or CP, the PTn command will
respond PR or CP. If the Pirani is set to AUTO, the PTn
command will response with the Pirani type it auto
detects, i.e. AUTO-PR, when it detects the PR.
Table 9-6 946 Pirani and Convection Pirani Control Commands