
Maintenance, Troubleshooting and Warranty
Maintenance
Rev. D Dimension 3100 Manual 343
18.1.4 Fuse Characteristics and Replacement
• NanoScope Controller: 6 fuses; 3 identical fuses in use and 3 spare fuses. The fuse
characteristics are silk-screened on the back of the NanoScope controller (see Table
18.1a).
Table 18.1a NanoScope Controller Fuse Characteristics
• Illuminator Circuit board: 2 fuses; one fuse is non-replaceable (281-000-024), while
the other fuse is replaceable and is shipped with a spare (see Table 18.1b).
• Vacuum Pump Board: 2 fuses; each has a spare (see Table 18.1b).
Table 18.1b Illuminator Circuit Board and Vacuum Pump Board Fuse Characteristics
Fuse Replacement Procedure
1. Remove all power from the system.
2. Remove the lid of the appropriate control box (4 screws).
Line
Voltage
Fuse Selection
F1 F2 F3
100V 2.0A 800mA 800mA
120V 2.0A 800mA 800mA
220V 1.0A 400mA 400mA
240V 1.0 400mA 400mA
All Fuses: 250V, Time-lag, 5mm x 20mm
Illuminator
Board
Part Number Current Dimensions
Max
Voltage
Time
Delay
Other
100V 281-000-026 1.25A 5 x 20mm 250V Yes IEC
120V 281-000-032 1.00A 5 x 20mm 250V Yes IEC
240V 281-000-031 0.5A 5 x 20mm 250V Yes IEC
Vacuum Pump
Board
100V 281-000-030 0.25A 5 x 20mm 250V Yes IEC
120V 281-000-029 0.2A 5 x 20mm 250V Yes IEC
240V 281-000-028 0.125A 5 x 20mm 250V Yes IEC
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