Trouble Shooting
If the instrument looks to be buggered, check battery, fuses, leads, etc., and replace as
necessary. Double check operating procedure as described in this user’s manual
Battery:
1.5V AAA Size battery x 2
240 hours continuous use on
Alkaline cells
Fuse F1 for
AmA current input:
0.4A/1000V DC/AC, IR
30kA FAST fuse or better;
Dimension: 6 x 32 mm
SIBA 70-172-40 FF400mA
Fuse F2 for A current input:
11A/1000V DC/AC, IR 20kA F
fuse or better; Dimension: 10 x
38mm
Bussman DMM-B-11A
Littlefuse FLU011
Battery and Fuse replacement:
Loosen the screw from the
access cover of the case bottom. Lift the access cover. Replace the batteries or
fuse(s). Re-fasten the screw.
Both fuses can be tested by inserting a probe into the A or mA/uA jack. If the IrEr
warning message and beep is not displayed, then the fuse on that input is blown.
Dave's Note: Proper ceramic HRC (High Rupture Capacity) fuses are expensive,
but they are designed to fail safe and not explode. That makes you safer.
Don't be a tight arse and put cheap glass fuses in there instead! If you wanted
cheap you should have bought a cheap arse meter instead of this one.
Beware the fakes on ebay!
The 400mA will still be able to handle a 600mA (full scale) input for some time,
so no worries measuring full scale mA current. Fuses don't magically blow at
their rated current, it's a more complicated process than that!
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