9 Troubleshooting PROline Promag 53
116 Endress+Hauser
9.8 Replacing the device fuse
#
Warning:
Risk of electric shock. Exposed components carry dangerous voltages. Make sure that
the power supply is switched off before you remove the cover of the electronics com-
partment.
The main fuse is on the power supply board (Fig. 56).
The procedure for replacing the fuse is as follows:
1. Switch off power supply.
2. Remove the power supply board → Page 112, 114
3. Remove cap (1) and replace the device fuse (2).
Use only fuses of the following type:
– Power supply 20 - 55 V AC / 16 - 62 V DC → 2.0 A slow-blow / 250 V;
5.2 x 20 mm
– Power supply 85 - 260 V AC → 0.8 A slow-blow / 250 V; 5.2 x 20 mm
– Ex-rated devices → see the Ex documentation.
4. Assembly is the reverse of the disassembly procedure.
"
Caution:
Use only original Endress+Hauser parts.
Fig. 56: Replacing the device fuse on the power supply board
1 Protective cap
2 Device fuse
F06-xxxxxxxx-03-xx-06-xx-000