Inside the Type 146 Unit Cha
ter Three: Overview
50
Pirani/Convection
On the end of the Pirani/Convection board are two 9-pin female Type “D” connectors, since the
board can support up to two gauges. Table 10 shows the connector pinout. The top connector is
the lower numbered channel, and the bottom connector is the higher numbered channel. For
example, if this board is installed in slot 1, the top connector is channel 1, and the bottom
connector is channel 2.
Pirani/Convection Connector Pinout
Pin Number Assignment
1 Drive +
2 Chassis Ground
3 Signal +
4 Signal -
5 Power Ground
6 Drive +
7 Bridge Delta +
8 Bridge Delta -
9 Power Ground
Table 10: Pirani/Convection Connector Pinout
Pirani Sensors and Cables
Sensor Type Part Number
Pirani Tube with KF-16 103150010
Pirani Tube with ¹/
8
” NPT 103150011
Pirani Tube with ½” VCR 103150012
Pirani Tube with 1
1
/
3
” CF 103150013
Pirani Tube with 2¾” CF 103150014
Cable Type Part Number
10 foot cable for all HPS Pirani sensors CB146-15, CB146S-15
146 to HPS CEP gauge CB146-37, CB146S-37
146 to G.P. Convectron
®
CB146-14, CB146S-14
146 cable adapter for G.P. Convectron cable CB146-1, CB146S-1
Table 11: Pirani Sensors and Cables
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