- 10 -
b.
When the current temperature TA=□□□
℃
sets as manual input temperature (automatic
temperature compensation set as manual input temperature, see 5.3.4.3), TA value is
obtained from the following operations: press "
η(φ)
T
A
" button, select TA, press "OK" key
enter the digital part, then press the " " or " " button to modify the numerical, press
the "OK" button again, σ(Tc) values in brackets is modified to current TA value and saved
until next modification. This method is used for no temperature sensor or automatic
temperature compensation mode when tested temperature has been known already.
Remark: When T
A
≦
0.4
℃
or T
A=
???, compensation temperature value Tc will be
modified into zero which is the default value.
c.
When temperature compensation mode select pseudo temperature compensation (see
5.3.4.3), if TA=None ,σ (TC) compensated temperature values in brackets is always
20
℃
, σ (TC) conductivity value is the same as conductivity of middle row, press"
η(φ)
T
A
"
key can’t select TA Value.
5.3.2.6 Methods of temperature coefficient
a.
When temperature compensation mode select automatic temperature compensation (a
0
value meaningless in pseudo temperature compensated mode or continuity measurements
interface), should be selected a
0
value based on test piece temperature coefficient. If
unknown test temperature coefficient, can refer to Appendix 1: "common materials
temperature coefficient" or refer to standard data which the relevant authority provided.
b.
In measuring interface, according to the temperature coefficient press key“a
0
”to select
a
0
value (appear the circle around a
0
), press the "OK" button, the cursor moves into digital
line, press the superscript key” ” or subscript keys “ ” to select temperature numerical
stored in the instrument (a
1
to a
12
) , selected a needed value then press the "OK" button to
confirm, the instrument default the a
0
value until the next election. If you do not press the
"OK" button to confirm, 5 seconds after, the instrument automatically restore the original
a
0
value.
c.
This instrument has storage space full of 12 groups (a
1
to a
12
) temperature coefficient
for the user to save the a
0
value (see the 5.3.4.4 temperature coefficient setting) for
measurement call.
5.3.2.7 Methods of curvature compensation coefficient
If open camber compensation function (see 5.3.4.2 measurement interface mode) , if appear η(φ)
=□□□□ curvature correction coefficient, press the "
η(φ)
T
A
" key select η(φ) value (appear the
circle around η(φ)), press "OK" key into the digital part line, according to " " or " " button
to modify the numerical (curvature coefficient selected refer to 6.4 curve surface effects), press
the "OK" key confirmation again, the instrument default the η(φ) value until the next election.
