Introduction and Description
Heater current
165 mA ± 10% (TC models)
Calibration
1.3 x 10
-1
Pa /1 x 10
-3
Torr (vacuum)
(two points)
1.0 x 10
5
Pa/7.6 x 10
2
Torr (atmosphere)
Auto-on threshold
1.3 x 10
-1
Pa to 6.6 Pa (1 x 10
-3
Torr to 5 x 10
-2
Torr)
(available on TC1 only)
Analog output
1 V/decade
1 V at 1.3 x 10
-1
Pa /1 x 10
-3
Torr
7 V at 1.3 x 10
5
Pa /1000 Torr
10 V for “03E” condition
Optional Linear Recorder Out available
Set Points (all models with Set Point option)
Set Points
floating SPDT relays with NO, NC, and C terminals
Contact rating
3 A at 24 VDC/250 VAC, gold-flashed
Remote Input (all models)
Input
3 to 32 VDC, 500 ohms minimum to activate high-vacuum gauge
(optically-isolated and floating level-sensitive)
Options Available
Bayard-Alpert Configurations
Up to three optional plug-in printed circuit boards can be user-installed in the UHV, UHV2c, BA2,
BA2c, and BA configurations, with the following restrictions: one set point board, one degas board, and
one communications board, either RS232 or RS485/422.
Cold Cathode Configurations
Up to two optional plug-in printed circuit boards can be user-installed in the CC2, CC2c, and CC con-
figurations, with the following restrictions: one set point board and one communications board, either
RS232 or RS485/422
1-3
FRONT PANEL
The front panel display of the senTorr 7-segment, LED digits and LED annunciators. These provide con-
tinuous, crisp readings, with no directional bias. The display uses three LED colors to group information.
Green
pressure data and parameter values
Yellow
set point and parameter annunciators
Red
operational status legends
1-3
