Section 7
Page 127
UVTOCMaintenance.fm Replacing the Fuses
7.13 Replacing the Fuses
D
Danger: Remove power to the
analyzer if any electrical work is
to be performed. See Safety Note
2 on page 183 for Spanish,
French, German, or Italian
translations.
The analyzer contains a total of six fuses. See Figure 52 for their location. and
the text below for their specifications.
Remove power to the analyzer and to the relays before replacing fuses.
Important Note: The analyzer circuit board components are sensitive to
static electricity damage in a powered or unpowered state. Do not touch
circuit boards or their components without wearing a properly grounded
wrist strap. See Electrostatic Discharge (ESD) Considerations on page 111.
DANGER: For continued
protection against fire hazard,
replace the fuse only with a fuse
of the same type and rating. See
Safety Note 12 on page 186 for
Spanish, French, German, or
Italian translations.
Figure 52 Fuse Locations
1. PCB
2. F3-Con25 & fan fuse: 1 A anti-surge 250 V (IEC127 Sheet III Type 2)
3. F2-External valve fuse: 1 A anti-surge 250 V (IEC127 Sheet III Type 2)
4. F5-Power supply terminal fuse: 2 A anti-surge 250 V (IEC127 Sheet III Type 2)
5. Perforated power supply fuse: 4 A quick blow 250 V (IEC127 Sheet II Type 2)
6. F4-RS422/485 fuse: 4 A anti-surge 250 V (IEC127 Sheet III Type 2)
7. F1-UV lamp fuse: 4 A anti-surge 250 V (IEC127 Sheet III Type 2)
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