PPCH-G™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 138
5.9.2
MECHANICAL MODULE
1.
Hi Q-RPT or utility sensor
2.
TEST vent valve
3.
Lo Q-RPT and its isolation and vent
valve (optional, not show)
4. Supply
accumulator
5. Front
panel
6.
Electrical cable track (to electronic module)
7.
Supply actuation valve
8.
Supply pressure transducer
9.
Inlet valve, servo-controlled
10. Outlet valve, servo-controlled
11. Thermal pressure control unit (TPCU)
Figure 17.
Mechanical module, internal view
5.9.2.1
SUPPLY PRESSURE TRANSDUCER
The supply pressure transducer is a 4 to 20 mA output strain gauge transducer
associated with a board that reads its output, applies compensation coefficients
and converts it to a digital signal. The range of the pressure transducer depends
upon the range of the pressure controller. The transducers readings are used to
indicate the pressure available at the PPCH-G
SUPPLY
port and the value of the
supply pressure is used in the PPCH-G pressure control algorithm.
Содержание PPCH-G
Страница 10: ...PPCH G OPERATION AND MAINTENANCE MANUAL 2007 DH Instruments a Fluke Company Page VIII N NO OT TE ES S...
Страница 96: ...PPCH G OPERATION AND MAINTENANCE MANUAL 2007 DH Instruments a Fluke Company Page 86 N NO OT TE ES S...
Страница 154: ...PPCH G OPERATION AND MAINTENANCE MANUAL 2007 DH Instruments a Fluke Company Page 144 N NO OT TE ES S...
Страница 158: ...PPCH G OPERATION AND MAINTENANCE MANUAL 2007 DH Instruments a Fluke Company Page 148 N NO OT TE ES S...