SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
103
Replacing the fuse
NOTICE
If the O-ring gasket is seated incorrectly or damaged, this
may have an adverse effect on the housing protection class.
Follow the instructions in
Opening and closing the housing
on page 44 to open and close the housing safely.
Note
For devices for use in potentially explosive atmospheres in
Zone 1 / Div. 1, the fuse is sealed and cannot be replaced.
1
Fuse
Figure 59: Fuse in the terminal box
There is a fuse in the transmitter terminal box (order number:
3KQR000443U0100).
Perform the following steps to replace the fuse:
1.
Switch off the power supply.
2. Open the transmitter terminal box.
3.
Pull out the defective fuse and insert a new fuse.
4.
Close the transmitter terminal box.
5.
Switch on the power supply.
6.
Check that the device is working correctly.
If the fuse blows again on activation, the device is defective and
must be replaced.
Returning devices
Use the original packaging or a secure transport container of an
appropriate type if you need to return the device for repair or
recalibration purposes.
Fill out the return form (see
Return form
on page 106) and
include this with the device.
In accordance with the EU Directive governing hazardous
materials, the owner of hazardous waste is responsible for its
disposal or must observe the following regulations for shipping
purposes:
All devices delivered to ABB must be free from any hazardous
materials (acids, alkalis, solvents, etc.).
Address for returns:
Please contact Customer Center Service according to page 5 for
nearest service location.
