HT instruments SIRIUS89N - Manual (Page 17)

SIRIUS89N
EN - 15
6.1.1.1. Procedure to reset test leads calibration parameters
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.
o
>
99.9
Ω
R+ R-
----
Ω ----Ω
---mA ---mA
AUTO 0.11
Ω
FUNC CAL
To cancel calibration
parameters it is
necessary to effect a
calibration procedure
with a resistance of
test leads higher than
5
Ω (for example with
open test leads). When
a cancellation is effected
the screen nearby is
displayed first
, followed
by the screen below:
6.1.2. Measurement Procedure
1. Select the desired mode by means of the
F1 key.
2. Connect the black and blue test leads to
B1 and B4 input terminals respectively
Connection of the test leads during LOW Ω test.
3. If the cables supplied with the instrument are not long enough for the
measurement you can extend the blue cable.
4. Short-circuit the test leads making sure that the conductive parts of the
crocodiles make a good contact to each other. Press the START key.
If the
displays doesn't show 0.00 Ω repeat the test leads calibration (see
paragraph 6.1.1).
5. Connect the instrument terminals to the ends of the conductor under test (see
previous picture).
6.
If the mode "RT+" or "RT-" was selected use the F3, F4 keys to set the
duration of the test.
7. Press the START key. The instrument will execute the measurement. In
RT+/RT- (Timer mode) you can press START key again if you want to stop the
test before the duration set is expired.
CAUTION
Never disconnect the test leads when the message "MEASURING" is
displayed.
START
STOP