Varian sentorr Instruction Manual - page 11
To determine the ordering number, select the desired configuration as follows:
Basic Configurations
One Ion Gauge
BA – Bayard-Alpert (563, 564, 571, 572, 580) . . . . . L 9 1
2 0 3 0 1 X X 0 X
CC – Standard Cold Cathode (524, 525) . . . . . . . . . L 9 1
2 1 3 0 1 X X 0 X
UHV – Ultra-High-Vacuum Nude Gauge (UHV-24) . . L 9 1
1 0 3 0 1 X X 0 X
IMG – Ultra-High-Vacuum Inverted Magnetron . . . . . L 9 1
1 1 3 0 1 X X 0 X
One Ion Gauge, Two Thermocouple Gauges
BA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
2 0 3 0 2 X X 0 X
CC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
2 1 3 0 2 X X 0 X
One Ion Gauge, Two ConvecTorr Gauges
BA2c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
2 0 3 0 3 X X 0 X
CC2c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
2 1 3 0 3 X X 0 X
UHV2c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
1 0 3 0 3 X X 0 X
IMG2c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 9 1
1 1 3 0 3 X X 0 X
Setpoint Options
No Setpoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Degas Options
No Degas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
Degas (BA resistive, UHV E-Beam) . . . . . . . . . . . . . 1
Communications Options
No Communications . . . . . . . . . . . . . . . . . . . . . . . . . 0
RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
RS-232 Fiber Optic. . . . . . . . . . . . . . . . . . . . . . . . . . . 2
RS-422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction and Description
A single pressure display features four digits, two for the mantissa and two for the exponent. There is a
pressure readout for each gauge, with the Bayard-Alpert or Cold Cathode display labeled “IG” and the
two thermocouple or ConvecTorr displays labeled “TC1” and “TC2”, as applicable to the senTorr model.
Label
pressure displayed
IG
Bayard-Alpert or Cold Cathode
(depending on the model)
TC1
Thermocouple one or ConvecTorr one
TC2
Thermocouple two or ConvecTorr two
The column of red LED legends indicates the following operational states.
Degas
hot filament ion gauge is degassing
Emis On
ion gauge is on
Auto-On
auto-on feature is programmed
mBar
pressure measurements units are mBar
Torr
pressure measurement units are Torr
Cal
calibrating thermocouples or ConvecTorrs
Hyst
programming set point hysteresis
The keypad is a sealed membrane-type, with tactile feedback. There are eleven keys, some of which
are dual function.
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