Valve And Solenoid Positions - Fluke Calibration 4322-SYS-NAVAIR Service Manual

PV1 PV2
Phase or
In Out
Pressure Ctrl Ctrl
Pressure Vented CLSD CLSD
Pressure
between 4 psig to
CTRL CTRL
7.6 psig
(External Source)
Pressure
between 4 psig to
CTRL CTRL
110 psig
(External Source)
Pressure
between 110 psig
CTRL CTRL
to 1,650 psig
(External Source)
Pressure
between
1,650 psig to CTRL CTRL
10,000 psig
(External Source)
Pressure
between 0 psia to
CLSD CLSD
23.6 psia
(Internal Pump)
Pressure
between
23.6 psia to CLSD CLSD
110 psig (Internal
Pump)
Pressure
between 110 psig
CLSD CLSD
to 300 psig
(Internal Pump)
Note:
[1] − ISO 3 opens and controls during most of each downward excursion, venting into the waste bottle. Once near the downward target pressure, ISO 3
closes and either the pump or PV2 and PV1 precisely control pressure to the final target pressure
Table 2-1. Valve and Solenoid Positions
VH1 VH2 VH3 V2
S2 CPS PMP S2
ISO VLV VENT
ISO
OPN OPN OPN OPN
[1]
OPN CLSD CLSD CLSD
[1]
OPN CLSD CLSD CLSD
[1]
OPN CLSD CLSD CLSD
[1]
CLSD CLSD OPN OPN
OPN OPN CLSD CLSD
[1]
OPN OPN CLSD CLSD
[1]
OPN OPN CLSD CLSD
V3 V4 V5 V6
S3 S4 S3 S4
VENT VENT ISO ISO
OPN OPN OPN OPN
CLSD CLSD OPN OPN
CLSD OPN OPN CLSD
OPN OPN CLSD CLSD
OPN OPN CLSD CLSD
CLSD CLSD OPN OPN
CLSD OPN OPN CLSD
OPN OPN CLSD CLSD
Theory of Operation
Controller
V7 A1 C1
BARO PMP PMP PMP
3-WAY ATM CRS FNE
S4 OPN OPN CLSD
ATM OPN OPN CLSD
ATM OPN OPN CLSD
ATM OPN OPN CLSD
ATM OPN OPN CLSD
ATM CTRL CTRL CTRL
ATM CTRL CTRL CTRL
ATM CTRL CTRL CTRL
2
F1
2-9