Replacing The Main Power Fuses - Thermo Scientific VH-D20 Operating Manual

7.9

Replacing the Main Power Fuses

When
Parts required
Tools required
Preparations
Follow these steps
Charged Aerosol Detectors (VH-D20, VF-D20)
Operating Manual
Blown fuses
Fuses (2 fuses, 3.15 AT, 250 V AC, slow-blow, 5 x 20 mm) from Fuses Kit
Slotted screwdriver, any size between 3.3 mm and 5.5 mm is
appropriate
WARNING—Electric Shock
High voltages are present inside the device that could cause an electric
shock or damage to the device.
• Turn off the device with its main power switch. Disconnect the
power cord from both the power source and the device.
• Use only the fuses of the type and current rating specified for the
device by Thermo Fisher Scientific.
• Do not use repaired fuses and do not short-circuit the fuse holders.
The fuse holder is located next to the main power switch.
Figure 35: Fuse holder
No. Description
1 Main power switch (on/off control)
2 Fuse holder
3 Power-inlet connector
7 • Maintenance and Service
Page 139