Replacing Ximv - ABB XSeriesG4 User Manual

6.11 Replacing XIMV

NOTICE – Warranty Violation. Under no circumstances shall the XIMV cover be removed. Removal of this cover,
and entry into interior of XIMV, voids XIMV warranty. If the XIMV requires servicing, the entire assembly, including
cable, must be removed from flow computer, securely packaged for shipping and returned to Totalflow.
Equipment needed:
-Flat blade screwdriver
-Crescent wrench
To replace the XMV:
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 to 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).
Equalize the pressure to the XIMV using the meter run installed Manifold high/low control valves, (Figure 92:).
Close off both lines using the high/low tap valves. These two valves connect the meter run high/low output lines to the
flow computer.
Vent the manifold to atmosphere using the vent valve.
Disconnect the high/low manifold lines from the XIMV.
!
CAUTION – Property damage. Do not disconnect the XIMV cable with power connected. Damage may result.
Disconnect the XIMV cable J9 (Figure 89) from the panel.
Remove the screws holding the XIMV cable to the panel using a slotted screwdriver.
Loosen the 2" mounting post clamps.
Rotate the flow computer a sufficient distance to allow removal of the XIMV. Clearance of approximately 7" is required
for removal.
Tighten the clamps after rotation, to hold the flow computer in place before removing the XIMV.
! CAUTION – Property damage. When rotating the flow computer, be careful not to place twisting stress on
attached cables.
Access the mounting hardware from underside of the flow computer enclosure.
Remove the eight mounting screws, washers and lock washers securing the XIMV to the cabinet, using a Phillips
screwdriver.
Tilt the XIMV slightly upwards.
Remove the unit.
123 XFC G4 2103335 Rev AB