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Type 8745 Ethernet, 8745 Analogue
11 MAINTENANCE................................................................... 55
11.1 Maintenanceforoperationwithheavilycon-
taminateduids........................................................ 55
11.1.1 Inspectandcleanthestainlesssteel
mesh-lter ...................................................... 56
11.2 Cleaning and recalibration at the factory ................. 57
11.3 Replacethememorycard........................................ 57
12 TROUBLESHOOTING ......................................................... 58
12.1 Problemsshownbytheproductstatusindicator .... 58
12.1.1 Product status indicator is red (MFM
Analogue) ....................................................... 58
12.1.2 Product status indicator is red (MFM
Ethernet)......................................................... 59
12.1.3 Product status indicator is red (MFC
Analogue) ....................................................... 59
12.1.4 Product status indicator is red (MFC
Ethernet)......................................................... 59
12.1.5 Product status indicator is orange
(MFM Analogue)............................................. 60
12.1.6 Product status indicator is orange
(MFMEthernet)............................................... 60
12.1.7 Product status indicator is orange
(MFC Analogue) ............................................. 60
12.1.8 Product status indicator is orange
(MFCEthernet) ............................................... 60
12.1.9 Product status indicator is yellow
(MFM Analogue)............................................. 60
12.1.10 Productstatusindicatorisyellow
(MFMEthernet)............................................... 61
12.1.11 Product status indicator is yellow
(MFC Analogue) ............................................. 61
12.1.12 Product status indicator is yellow
(MFCEthernet) ............................................... 61
12.1.13 Product status indicator is blue ..................... 62
12.2 ProblemsshownbythestatusLEDofthe
motor valve............................................................... 62
12.2.1 LEDisredandashes,LEDisredandON ... 62
12.2.2 LEDisyellowandashes .............................. 62
12.3 Miscellaneousproblems .......................................... 62
12.3.1 Productstatusindicatoriso ....................... 62
12.3.2 Productstatusindicatorashes .................... 62
12.3.3 Product status indicator goes out
periodically..................................................... 62
12.3.4 Replacementproductadoptsnone
ofthevaluesfromthedefectiveproduct ....... 63
12.3.5 Replacementproductdoesnot
adoptallofthevaluesfromthe
defectiveproduct ........................................... 63
12.3.6 Nomassowrate(MFM) ............................... 63
12.3.7 Nomassowrate(MFC)................................ 63
12.3.8 Unstable measured value (MFM) ................... 64
12.3.9 Unstable measured value (MFC).................... 64
12.3.10 Set-pointvalueat0%,butoperating
uidstillows(MFC)...................................... 64
12.3.11 Set-pointvalueat0%,control
valveisclosed,nomassow,buta
non-zeromassowrateismeasured(MFC) . 64
12.3.12 Set-pointvalueisnotreached(MFC) ............ 65
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