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Series 979 ATV Transducer
Gas Type Calibration – GT
The GT command sets gas type for measurement on the MicroPirani. The
MicroPirani measures thermal conductivity; using the gas calibration
compensates for gas errors.
Values:
NITROGEN, AIR, ARGON, HYDROGEN, HELIUM,
H20 (default: NITROGEN)
Query:
@001GT?;FF
Query Response:
@001ACKAIR;FF
Command:
@001GT!NITROGEN;FF
Command Response:
@001ACKNITROGEN;FF
Gas Correction – GC
The GC command returns or sets the Hot Cathode gauge’s sensitivity for use
with gasses other than air or nitrogen. For example, if Argon is the system
gas then the gas correction value would be 1.29. See the
Gas Correction
Factor Table
for values.
Values:
0.10 to 50.1 (default: 1)
Query:
@001GC?;FF
Query Response:
@001ACK1.00;FF
Command:
@001GC!1.50;FF
Command Response:
@001ACK1.50;FF
Summary of Contents for 979 Series
Page 1: ...Operation and Maintenance Manual Series 979 Atmosphere to Vacuum Transducer ...
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Page 3: ...Series 979 ATVTransducer Part 100014438 Series 979 Atmosphere to Vacuum Transducer ...
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Page 48: ...48 Series 979 ATVTransducer Notes ...
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