WMF 800 - Water Tank Inlet Assembly; Flow Meter

Boiler water system
T2-9
© WMF800 / 900 / 1000S / 1000proS Edition 07/2014 - KMT
2/3.2 Water tank inlet assembly
Thewaterisfedviathewatertank
couplingundernopressureand
bywayoftheowmetertothe
oscillationpump.Aninlinelter
isinstalledbetweenthewater
tankcouplingandtheowmeter
forcoffeemachinesuptoserial
number9115.Thisshouldprevent
contaminationcloggingtheow
metercover.Thehosefromthe
owmetertothepumpislong
enoughtopreventoscillations
fromcausingerroneousmeasure-
mentsintheowmeter.
*Startingwithserialnumber9116,atankvalvettingwithascreeninsertisinstalled.
2/3.3 Flow meter
WMF800 / 900 WMF1000S / 1000proS
DFM
Theowmeterisattachedbelowonthebasepan.Itmeasurestheamountofwater
forcoffee.Thismeasurementcontrolsthemeteredquantity,orindirectly,theheating
ofthehotwaterboiler.
Technical data: flow meter
Ratedvoltage 5V
ccm/digit about1ccm/1digit
Nozzlejet 1.2mm
Pressurerange maximum1bar
Service life: water tank inlet assembly
O-ringsupplyunion 1year,maximum10,000brewingcycles
Flowmeterandhoses 6years,maximum90,000brewing
cycles
Error without display message
• Flowmeterdoesnotturn
• Flowmeternotproperlyconnected
• Hosekinkedbeforeorafterowmeter
• Flowmetercoverclogged
See flow errors chapter 2/3.7
See instructions, error messages, troubleshooting
Part 6