Caution, 400 series, En - 18 – HT instruments SPEED418 User Manual

Page 19

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400

Series

EN - 18

10. By using the AUTO mode,

once test is completed, in
case the average value
between R+ and R- is lower
than the set limit, the
instrument gives a double
acoustic signal which signals
the positive result of the test
and displays a screen similar
to the one reported here to
the side

L O W

0 . 2 5

R +

R -

0 . 2 6

 0 . 2 4 

2 1 2 m A

2 1 3 m A

Average value between R+
and R-

Values of the test currents for
R+ and R-

Values of R+ and R-,
respectively

AUTO

4.00

0.21

Func

Lim

CAL

11. By using the R+ or R- mode,

once test is completed, in
case the detected value is
lower than the set limit, the
instrument gives a double
acoustic signal which signals
the positive result of the test
and displays a screen similar
to the one reported here to
the side

L O W

0 . 2 5

2 1 2 m A

1 s

Value of resistance R+ (or R-)

Values of test current and test
time

R+

4.00

1s

0.21

Func

Lim Temp

CAL

12.

The results displayed can be saved by pressing the SAVE key twice or
the SAVE key and, subsequently, the ENTER key (§ 9.1)

6.2.1. CAL

mode

Fig. 7: Calibration of single cables and remote probe

1.

Use the arrow keys ,  to select the virtual Func key and set the CAL test
mode by means of the arrow keys , .
It is not necessary to confirm the selection with ENTER

.

2. Short the leads of the measurement cables as in Fig. 7 making sure that the

conductive parts of alligator clips are well in contact.

3.

Press the GO/STOP key on the instrument or the START key on remote
probe. The instrument starts the calibration procedure of the cables
immediately followed by the verification of the compensated value.

CAUTION

If message “Measuring…” appears on the display, the instrument is
performing measurement. If message “Waiting verify” appears on the
display, the instrument is verifying the calibrated value. During this whole
stage, do not unshort the test leads of the instrument.

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