VR2250
Page 16 of 131
TEST LEADS
Before each measurement always make sure that
the calibration is applicable to the test leads in
use. During a continuity test, if the resistance
value free of calibration (that is the resistance
value is less than the calibration offset value) is
negative
, the symbol
is displayed. Probably
the calibration resistance value stored in the
instrument memory is not applicable to the test
leads in use; therefore a new calibration must be
performed.
6.1.1.1. Procedure to reset test leads calibration parameters
To cancel calibration
parameters it is
necessary to perform a
calibration procedure
with a resistance of
test leads higher than
5
Ω
(for example with
open test leads). When a
cancellation is performed
the screen nearby
is
displayed along side:
LOW
Ω
05.06.01
Message
>99.9
Ω
:
means that the
instrument detected a
resistance higher
than 5
Ω
therefore it
will proceed with
Reset procedure.
>
99.9
Ω
R+ R-
----
Ω
----
Ω
---mA ---mA
AUTO 0.11
Ω
FUNC
CAL