14
Probe/Tip
Replacement
If the probe cannot be calibrated, or if it does not
hold the calibration for a reasonable amount of time,
the probe or tip must be replaced. Current versions
of the 24” T-handle probe come with a replaceable
tip (item 2266). With these probes, the cable and
shaft do not need to be replaced.
An “OR” reading on the LCD (see Appendix 5) may
indicate a failed probe or simply that the probe has
come unplugged from the meter. See
Checking
Probe Connection
(p. 16) before replacing the
probe or tip.
Replacing a tip (24” probes only)
The replaceable tip (left) is designed to thread
in and out of the end of the probe. A new tip
has two flat faces on opposite sides. This
allows the tip to be tightened onto the probe
with a pliers or 5/16” wrench.
I. Removing a direct-insert probe
The 8” probe and older 24” probes do not have a
replaceable tip. The replacement procedure is
outlined below.
1. Remove the black nut from the strain-relief
where the cable feeds into the meter.
2. Remove the tan nut on the cable end of the
meter.
3. Detach the probe cable plug from the socket in
the meter.
4. Remove the tan nut and large o-ring. For the 24”
probe, also remove the strain relief from the
larger plastic assembly.