5080A
Getting Started Manual
14
3. Remove the fuse from the compartment for replacement or verification. Be sure the
correct fuse is installed.
4. Reinstall the fuse compartment by pushing it back into place until the tab locks.
Selecting Line Voltage
The Calibrator arrives from the factory configured for the line voltage normally
appropriate for the country of purchase, or as specified at the time of your purchase order.
You can operate the 5080A Calibrator from one of four line voltage settings: 100 V, 120
V, 220 V, and 240 V (47 Hz to 63 Hz). To check the line voltage setting, note the voltage
setting visible through the window in the power line fuse compartment cover (Figure 1).
The allowed line voltage variation is 10% above or below the line voltage setting.
To change the line voltage setting, complete the following procedure:
1. Disconnect line power.
2. Open the fuse compartment by inserting a screwdriver blade in the tab located at the
left side of the compartment and gently pry until it can be removed with the fingers.
3. Remove the line voltage selector assembly by gripping the line voltage indicator tab
with pliers and pulling it straight out of its connector.
4. Rotate the line voltage selector assembly to the desired voltage and reinsert.
5. Verify the appropriate fuse for the selected line voltage (100 V/120 V, use 5 A/250 V
slow blow; 220 V/240 V, use 2.5 A/250 V slow blow) and reinstall the fuse
compartment by pushing it back into place until the tab locks.
Connecting to Line Power
XW Warning
To avoid shock hazard, connect the factory supplied three-
conductor line power cord to a properly grounded power outlet.
Do not use a two-conductor adapter or extension cord; this will
break the protective ground connection.
If there is any question about the effectiveness of instrument
earth grounding through the line power cord ground wire, use
the rear-panel AUX EARTH GROUND terminal for a protective
grounding wire.
The Calibrator is shipped with the appropriate line power plug for the country of
purchase. If you need a different type, refer to Table 3 and Figure 2 for a list and
illustration of the line power plug types available from Fluke.
After you verify the line voltage selection is set correctly and the correct fuse for the
selected line voltage is installed, connect the Calibrator to a properly grounded three-
prong outlet.
Selecting Line Frequency
The Calibrator is shipped from the factory for nominal operation at 60 Hz line frequency.
If you are using 50 Hz line voltage, you should re-configure the 5080A for optimal
performance at 50 Hz. To do so from the front panel, go to SETUP, INSTMT SETUP,
OTHER SETUP, and then select MAINS 50 HZ to “on”. Store the change. After the
instrument is warmed up (on for 30 minutes or longer), you must re-zero the complete
instrument. For details, see the section on “Zeroing the Calibrator” in Chapter 4.
riešenia na presné meranie
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