Varian 947, Руководство по эксплуатации и обслуживанию

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Models 947, 948 and 960 Leak Detectors Operations and Service Manual
2-10
2.3.2 BCD J121 Outputs
Table 2-3 provides the J121 output connections.
21 Calibrating Active High Active when Auto Cal.
23 Ready Active High Active when system is operating
(inverse of “Not Ready”).
25 Ground return for J120 only
27, 28 +24 VDC for Output Sourcing
Table 2-3 J121 Output Summary
Pin on
J121
Signal Name Momentary or Level Description
1, 2 Ground for J121
3 LSD A Active High BCD Leak Rate
4 LSD B Active High BCD Leak Rate
5 LSD C Active High BCD Leak Rate
6 LSD D Active High BCD Leak Rate
7 MSD A Active High BCD Leak Rate
8 MSD B Active High BCD Leak Rate
9 MSD C Active High BCD Leak Rate
10 MSD D Active High BCD Leak Rate
11 LSD A Active High BCD Leak Rate
12 LSD B Active High BCD Leak Rate
13 LSD C Active High BCD Leak Rate
14 LSD D Active High BCD Leak Rate
15 MSD A Active High BCD Leak Rate
16 MSD B Active High BCD Leak Rate
17 MSD C Active High BCD Leak Rate
Table 2-2 J120 Input Connections (Continued)
Pin on
J120
Input Name Momentary or Level
Description