Sigma 2008 B1, Operating Instructions Manual

Page: 21 / 34

- 18 -
save a
n
numerical and the cursor automatically moves to the a
n+1
item. Press" SET"(or"
MEAS "key) key to exist and then return to main interface or the main measurement
interface.
b. a
n
temperature coefficient value must be set from a
1
to a
12
one by one, a
n
must be
placed in the end when it is equal to zero value , otherwise when the value of a
n
set zero,
numerical value a
n+1
can not be called by measurement interface.
c. A total of 12 values of the temperature coefficient a
n
preset by users own, they are
called for measurement.
d. The valid setting range of
a
n
is
“0.0000 ～ 0.0300”
5.3.4.5 Calibration block
a.
σ
1
to σ
5
are conductivity value preset calibration block at 20
℃
, a
1
to a
5
are the
temperature coefficient corresponding to the σ
1
to σ
5
of calibration standard block . Units
of measurement of the default instrument unit, determine by the item 5.3.4.7 unit
selection.
b.
Press the upward key “ ”or downward movement key” ” to select the project to
change, press the "OK" key to move to the numerical part, use " " and " " key to
modify the value (if press and hold " " " " button can modify value quickly), press
"OK" button to save values, and the cursor automatically move to the next project. When
the cursor is moved to σ
H
, press "OK" button to confirm, use " " and " " key to choose
the number of 1 to 5(one of σ
1
to σ
5
blocks set as the instrument high value calibration
block), press the "OK" button to save the value and move the cursor to σ
L
, press "OK"
button to confirm, use " " and " " key to choose the number from 1 to 5 (select one of
σ
1
to σ
5
blocks as the instrument low value calibration block). Press the "OK" button to
save and return to the main setting interface.
c. The choice of σ
H
and σ
L
and the corresponding temperature coefficient, is provided to
the high and low conductivity block called for instrument standard ,must note that σ
H
should be greater than σ
L
value, otherwise the selection is invalid.
d. Setting range of conductivity σ is "0.300 ~ 65.0MS/m or 0.517 ~ 112.0%IACS" (when
the standard block conductivity value < 3MS/m or 5.170%IACS and the numerical should
exact to three digits and must be set in σ
4
or σ
5
). Setting range of temperature coefficient
value is"0.0000 ~ 0.0300"