Troubleshooting and Service

4

 

 

 

Low Battery

4.4 Low Battery

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Go to

 

 

 

 

 

 

line:

 

 

1.

Is the instrument connected to line voltage? Is the instrument connected to line

YES

2

 

 

voltage?

 

NO

6

 

 

 

 

 

 

 

Turn the instrument off. Wait a few seconds. Turn the instrument on. A

YES

3

 

 

2.

sequence of screens will appear. On the last screen, the battery voltage and

 

 

NO

8

 

 

 

current are displayed. Is the battery current between +0.10 A and +3.00 A?

 

 

 

 

 

 

 

3.

The battery is charging. Has the instrument been plugged in for more than 8

YES

4

 

 

hours?

 

NO

--

 

 

 

 

 

 

4.

Is the battery voltage greater than 5.9 volts?

 

YES

5

 

 

 

NO

--

 

 

 

 

 

 

 

5.

PROBLEM: False battery low indication. See Section 4.10.

 

 

 

 

 

 

 

 

 

 

 

Connect AC line cord. If the display goes blank or stops updating, turn the

YES

7

 

 

6.

instrument off. Wait a few seconds. Turn the instrument on. Is the battery

 

 

NO

8

 

 

 

current between +0.10 A and +3.00 A?

 

 

 

 

 

 

 

 

 

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

9

 

 

NO

18

 

 

 

 

 

 

 

9.

Disconnect AC line cord from rear panel. Remove line fuses from rear panel

YES

10

 

 

fuse holder. Test the fuses with an ohmmeter. Are the fuses open circuited?

NO

11

 

 

 

 

 

10.

See Section 4.6.

 

 

 

 

 

 

 

 

 

 

 

 

11.

Reinstall fuses. Reconnect AC line cord.

Is the battery current between

YES

12

 

 

+0.10 A and +3.00 A?

 

NO

13

 

 

 

 

 

 

12.

The battery is charging.

 

 

 

 

 

 

 

 

 

 

 

 

13.

Attach known operational appliance to outlet. Does the appliance work?

YES

14

 

 

NO

16

 

 

 

 

 

 

 

14.

Instrument or line cord is faulty. Replace cord with known good cord or

YES

15

 

 

establish that the line cord is good. Is line cord good?

NO

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.

 

 

 

 

 

 

 

 

 

 

 

4-7

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Image 65
Fluke 35040 manual Low Battery, Hours? Is the battery voltage greater than 5.9 volts?