2100-900-01 Rev. D / September 2011 Return to Section Topics 2-9
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 2: Getting Started
WARNING Before connecting power to the Model 2100, ensure that the fuse is intact.
Refer to “
Changing the fuses” later in this section if the fuse is open/blown.
WARNING The main power input voltage to the unit must be selected correctly according
to the local installation’s power supply. Check the voltage indication window
on the power module at the back of the unit to verify the voltage setting is
correctly set. If the voltage is not correctly set, refer to “
Setting the line
voltage” below.
WARNING The power cord supplied with the Model 2100 contains a separate ground wire
for use with grounded outlets. When proper connections are made, the
instrument chassis is connected to power line ground through the ground
wire in the power cord. Failure to use a grounded outlet may result in personal
injury or death due to electric shock.
Changing the fuses
WARNING Before replacing the power-line fuse or current input fuses, verify that the
multimeter is disconnected from AC power. You must be qualified personnel
to perform this action.
CAUTION For continued protection against fire or instrument damage, only replace the
fuses with the same type and rating. If the instrument repeatedly blows fuses,
have the unit serviced at an authorized repair facility.
Power line fuse
A power-line fuse located next to the AC receptacle (in the voltage setting selector) protects the
power line input of the instrument. Verify that the power-line fuse is good and replace it with a new
one if it is damaged. The Model 2100 is shipped from the factory with a 0.25A/250V, 5×20mm
slow-blow glass fuse installed (Keithley Instruments part number FU-96-4). This is the correct fuse
type for all line voltage settings; use only this type of replacement fuse.
To change the power line fuse:
Step 1: Disconnect the AC power
Verify that the meter is disconnected from AC power as shown in Figure 2-13.
To Next Page
Loading...
Need help?
General
