Replacing Frit Filters; Instructions; Figure 5-11 Primary Component Side Digital Controller Board - ABB NGC8206 User Manual

LCD INTERFACE
40 PIN CONNECTOR
CPU
BOOT MODE
NOT USER
CONFIGURABLE
TERMINATION INTERFACE
50 PIN CONNECTOR

Figure 5-11 Primary Component Side Digital Controller Board

5.19 Replacing Frit Filters

Several reasons exist for replacing the frit filters from a scheduled maintenance
procedure to decrease sample pressure due to clogged filters. When replacing the
filters on a regularly scheduled maintenance plan, it will most likely not require that
the sample lines be removed from the external plate. When replacing the filters as
a troubleshooting measure, remove the sample input lines and use compressed
air to clear the pathway. For the purposes of this manual, these instructions
contain steps for the worst case scenario.

5.19.1 Instructions

1) On the Analyzer Operation screen, click Hold under Next Mode. When the
2) Collect data from the unit.
3) Back up the configuration files, following the instructions detailed previously in
the section,
4) Turn off all the sample streams, calibration gas and carrier gas.
5) Using a 7/32" hex wrench, loosen and remove all 8–¼" hex socket screws (see
Figure
6) If space permits, lift the external plate away from the internal plate and view the
frit filters. If space does not permit lifting the plate away enough to view the filters,
remove the sample input lines and the carrier and calibration gas lines.
2101510 Rev. AG
J2
U11
U3
J6
2
1
unit completes the current cycle and enters hold, continue to the next step.
Backing Up Configuration Files
5-12).
SECURE DIGITAL CARD DRIVE
U10
J7
U21
U20
U18 U19
J5
U14
J1
50
49
(Save).
JTAG INTERFACE
14 PIN HEADER
LITHIUM BATTER
3 PIN HEADER
Page 5–25