ABB XSeriesG4 User Manual page 124

-Phillips head screwdriver
To replace the static pressure transducer:
DANGER – High pressure gas. Pressurized natural gas is present in the measurement pipeline and equipment.
!
A possibility exists for natural gas to escape from the pipeline or tubing. Only properly trained and authorized
personnel should work in hazardous locations.
Connect the PC running PCCU32 to the flow computer with either an MMI cable (RS-232), a USB cable or an
Ethernet cable.
Open PCCU.
Collect the Data from the unit as described in section 6.2.1, Data collection (page 108).
Back up configuration files as described in section 6.2.2, Back up configuration files (save) in page 108.
Ensure the J13 (Figure 89) memory backup jumper covers the top two pins.
Verify "LL" battery alarm is not being displayed on the LCD display.
Measure the lithium battery with a Multi Meter, ensure it is > 3.0V.
Disconnect the battery charger from terminals EXT CHGR +/- J5 (Figure 89).
Disconnect the Battery Cable from connector J1 (Figure 89).
Close the user installed static pressure transducer impulse line isolation valve.
Close and isolate the static pressure to transducer (Figure 93:).
Close and isolate the pressure to transducer using the user installed static pressure transducer calibration three way
valve.
Open the test port to vent static pressure from the transducer.
Remove the static pressure impulse line connections from the transducer.
!
CAUTION – Equipment damage. Do not disconnect XIMV cable with power connected. Damage may result.
Disconnect the transducer cable from the circuit board.
Remove the mounting screw from XIMV cable with a flat blade screwdriver.
Remove the cable from static pressure transducer connector. If not pipe mounted skip to step 21.
Loosen the pipe mounting bolts until the unit may be rotated.
Rotate a sufficient distance to allow removal of the static pressure transducer.
Tighten the clamps after rotation to hold the flow computer in place before removing the static pressure transducer.
Loosen the mounting bolts until unit can be lifted off of pulse box.
125 XFC G4 2103335 Rev AB