Altometer
14
3 Replacement of mains fuse
Before opening the converter housing:
Note the warnings in the beginning of section 4 !
After opening of the window cover, move the display-unit forward by means of the
two metal pullers left and right. Slip the display-unit side wards. Loosen the two cross
headed screws with which the electronic unit is fixed. Now carefully slide the
electronic unit forward. When them unit is almost completely moved out of the
housing, the long rectangular (14-pole) blue connector at the back-end of the unit
must be released. This connector is for the connection of the electrode- and coil
circuits. Now the unit can be completely moved from the housing.
The mains fuse is placed in a fuse holder at the back-end of the electronic unit.
Replacement types must have a high breaking capacity to IEC 60 127. The rated
nominal values must be
=
1,6 A for the 100..230 V
ac
version and
=
2,0 A for the
12..24 V
dc
version. Consult the standard Installation and Operating Instructions for
the correct nominal value.
4 Maintenance
The compact flowmeter Optiflux 4300 C-EEx is maintenance free with respect to the
flowmetering properties. Within the scope of periodic inspections required for
electrical equipment installed in hazardous areas it is recommended to check the
flameproof converter housing and covers on signs of damage or corrosion.
For flowmeters sizes DN25-100 with EEx d primary head housing this housing should
also be included in the inspection.
