Fluke 1623 [22/30] Fluke 1623

Fluke 1623

Users Manual

Troubleshooting

Follow the steps in Table 4 and refer to Figure 9 for steps 1-5.

Table 3. Troubleshooting

Step Description

1 External voltage (Uext) too high

If the external voltage applied to the instrument is too high, usually

from leakage currents in the system under test, no measurement can

be started (see “Technical data” for Uext limit).

Hint: Reposition probe (S/P2) and restart measurement.

2 Auxiliary earth electrode resistance (RH) too high

If the auxiliary earth electrode resistance is too high it is not possible

to drive the current necessary for reliable measurements. The

measurement is blocked (see “Technical data” for Rh limit).

Hint: Check connection of test lead with terminal H/C2, check

auxiliary earth stake.

3 Probe resistance (Rs) too high

If the probe resistance is too high measurements are not reliable.

The measurement is blocked (see “Technical data” for Rs limit).

Hint: Check connection of test lead with terminal S/P2, check

probe stake.

4 Weak batteries

If the batteries are weak the supply voltage may break down during

measurement. If there is enough energy to complete the

measurement “

” symbol is displayed - measuring results are

valid. If not, a reset occurs.

Hint: Replace batteries. Use 6 alkaline AA-type (LR6) batteries.

5 Is your R

measurement result reliable?

Probe S/P2 must be outside the potential gradient areas of E/C1 and

H/C2 for accurate measurements. Normally a probe distance of

more than 20m is sufficient. However in some environmental