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Troubleshooting and Service
Low Battery
4
4-7
4.4 Low Battery
Go to
line:
1.
Is the instrument connected to line voltage? Is the instrument connected to line
voltage?
YES
NO
2
6
2.
Turn the instrument off. Wait a few seconds. Turn the instrument on. A
sequence of screens will appear. On the last screen, the battery voltage and
current are displayed. Is the battery current between +0.10 A and +3.00 A?
YES
NO
3
8
3.
The battery is charging. Has the instrument been plugged in for more than 8
hours?
YES
NO
4
--
4. Is the battery voltage greater than 5.9 volts?
YES
NO
5
--
5. PROBLEM: False battery low indication. See Section 4.10.
6.
Connect AC line cord. If the display goes blank or stops updating, turn the
instrument off. Wait a few seconds. Turn the instrument on. Is the battery
current between +0.10 A and +3.00 A?
YES
NO
7
8
7.
The battery is charging. "LoBat" indicator will turn off when the battery voltage
is above 5.9 volts.
8. Is the battery current between -1.00 A and -0.10 A?
YES
NO
9
18
9.
Disconnect AC line cord from rear panel. Remove line fuses from rear panel
fuse holder. Test the fuses with an ohmmeter. Are the fuses open circuited?
YES
NO
10
11
10. See Section 4.6.
11.
Reinstall fuses. Reconnect AC line cord. Is the battery current between
+0.10 A and +3.00 A?
YES
NO
12
13
12. The battery is charging.
13. Attach known operational appliance to outlet. Does the appliance work?
YES
NO
14
16
14.
Instrument or line cord is faulty. Replace cord with known good cord or
establish that the line cord is good. Is line cord good?
YES
NO
15
17
15. PROBLEM: Battery charger inoperative. See Section 4.10.
16. Outlet is faulty.
17. See Section 4.9. Order proper line cord.
18.
PROBLEM: Low battery during trickle charge. Call Fluke Biomedical for
Service.