![Land 4500 MKII Premier Скачать руководство пользователя страница 124](http://html1.mh-extra.com/html/land/4500-mkii-premier/4500-mkii-premier_operation-and-maintenance-manual_3476555124.webp)
Model 4500 Premier Dust and Opacity Monitor
124
C6
Testing and Checking
C6-1 Identifying Faults
The Land Model 4500 Premier Dust/Opacity Monitor has been designed to allow the user to troubleshoot
a number of possible problems and faults. If a fault condition occurs, the system OK LED on the
transmissometer will not be illuminated and the System OK relay will reset to Fault condition.
Error messages may be read by pressing the Maintenance switch for 3 seconds to enter Maintenance
mode, and pressing the
↵
ENTER key at the Faults menu. The display will show the number of faults,
further depression of the
↵
ENTER key will display a series of fault messages.
NOTE
Non-fatal faults are reset once they have been viewed.
ERROR
DESCRIPTION
DIAGNOSIS
NUMBER
-
LEDs off.
No power at T-Box - check power supply.
Display blank.
Check fuse.
-
LEDs on
Adjust contrast with Contrast key.
Display blank.
-
Instrument reads constant
Beam blocked - check fail-safe shutters.
high opacity value
Check for beam blockage.
Transceiver not connected.
Umbilical cable damaged.
0
Checksum error
Fault in instrument memory call LAND
Combustion Service Dept.
1
EEPROM Write error
2
OP0 fault
Zero check failed. Repeat cal. check.
3
OPc fault
Span check failed. Repeat cal. check.
4
OP0 limited
Zero cal. value out of range- several causes:
Dirty window - clean optics (see Maintenance).
Instrument drift - check and re-calibrate.
Repeat cal. check.
5
Fail in cal.
Calibration failed or aborted.
Repeat cal. check.
Check cal. motors and micro-switches.
Содержание 4500 MKII Premier
Страница 2: ......
Страница 4: ......
Страница 10: ......
Страница 28: ...Model 4500 Premier Dust and Opacity Monitor 28...
Страница 135: ...Model 4500 Premier Dust Opacity Monitor Appendix Part No 770 084...
Страница 136: ......