Fuse Requirements
An AC input fuse is necessary when powering the instrument. Below is a table of the fuse
required for all models operating with either 110 VAC or 220 VAC input.
Table 1 - Fuse Requirements
Fuse Specification (110 VAC)
Fuse Specification (220 VAC)
2.2 Line Voltage Selection
The power supplies can be selected to operate with 110 V input or 220 V input. To ensure that
your instrument is properly configured to operate at the desired AC line voltage, please follow
the steps below:
For safety, no power should be applied to the
instrument while changing line voltage operation.
Disconnect all cables connected to the instrument
before proceeding.
Step 1 - Check and/or Change Fuse
- Locate the fuse box next to the AC input connector in the rear panel.
- With a small flat blade screwdriver, insert into the fuse box slit to pull and slide out the fuse
box as indicated below.
- Check and replace fuse (if necessary) for the desired line voltage operation (see Table 1).
Figure 5 - Fuse replacement
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