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35040
Operators Manual
4-6
4.3 Display Will Not Light
Go to
line:
1. Is the instrument connected to line voltage?
YES
NO
2
4
2.
Disconnect the line cord. Check the fuse. (See Section 4.6.) Is the fuse
filament intact?
YES
NO
3
11
3. Attach known operational appliance to outlet. Does the appliance work?
YES
NO
4
12
4.
Connect instrument to AC line. Press the Power button.
Did the display light up?
YES
NO
5
7
5. Is the battery current between +0.10 A and +3.00 A?
YES
NO
6
13
6.
The fault has been cleared. The battery is charging. Leave the instrument
plugged in for at least 2 hours. When the battery is less than 5.4 volts and the
instrument is running on battery, the instrument will turn itself off. This is to
protect the battery from becoming severely discharged.
7.
Replace cord with known good cord or establish that the line cord is good. Is
line cord good?
YES
NO
8
14
8. Was the battery low the last time the instrument was stored?
YES
NO
9
16
9. Has the instrument been plugged in for more than 24 hours?
YES
NO
10
15
10. PROBLEM: Instrument will not power up after 24 hours. See Section 4.10.
11. See Section 4.6.
12. Faulty Outlet. Use a different outlet.
13. See Section 4.2 to isolate problem.
14. ORDER: Proper line cord. See Section 4.9.
15.
The battery may take more than 18 hours to recharge if the battery was in the
low battery condition and was not recharged before storage. Leave the
instrument plugged in and try again in 18-24 hours.
16. PROBLEM: Instrument will not power up. See Section 4.10.