Replacing The Device Fuse - Endress+Hauser Proline Promass 84 MODBUS RS485 Operating Instructions Manual

Proline Promass 84 MODBUS RS485
#
Endress+Hauser
10.6.2

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 compartment.
The main fuse is on the power unit board → å 49.
The procedure for replacing the fuse is as follows:
1. Switch off power supply.
Remove the power unit board → ä 87.
2.
3. Remove the protection cap (1) and replace the device fuse (2).
Only use the following fuse type:
– 20 to 55 V AC / 16 to 62 V DC → 2.0 A slow-blow / 250 V; 5.2 x 20 mm
– Power supply 85 to 260 V AC → 0.8 A slow-blow / 250 V; 5.2 x 20 mm
– Ex-rated devices → see the Ex documentation
4. Installation is the reverse of the removal procedure.
"
Caution!
Use only original Endress+Hauser parts.
Fig. 49: Replacing the device fuse on the power unit board
1 Protective cap
2 Device fuse
2
1
Troubleshooting
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