Inside the Type 146 Unit Cha
ter Three: Overview
48
Capacitance Manometer Board
The Capacitance Manometer board has one 15-pin female Type “D” connector. Table 8 shows
the connector pinout. Refer to Table 9, page 49, for a list of MKS capacitance manometers
supported, along with their cables.
Capacitance Manometer Pinout
Pin Number Assignment
1 +15 Volts
2 Signal +
3
Remote Zero
*
4
x0.1 Range Select
*
or
PROM Clock**
5 Power Ground
6 -15 Volts
7 +15 Volts
8 Remote Zero Out-of-Range *
9 -15 Volts
10 PROM Write**
11 Digital Ground
12 Signal -
13
Range Identification
*
or
PROM Read**
14
Bypass Remote Zero
*
15 Chassis Ground
* Feature on the 120 transducer only
** Feature on the 107 transducer only
Table 8: Capacitance Manometer Pinout
Note
If a pin has a function that is not supported by your transducer, do not
connect a signal to it. Circuitry on the Capacitance Manometer board
may be damaged if an inappropriate signal is connected.
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