Hioki LR8400-20, Инструкция по эксплуатации

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3.3 Input Channel Settings
58
Follow this procedure to configure thermocouple temperature measurement channels.
Make these settings on the
[CH] screen.
See:
"Key Setting Procedure" (p .55)
Temperature Measurement Settings (using thermocouples)
1
Temperature Measure-
ment Range
(Depends on thermocouple
type)
With type B, the display shows
0 to 400°C, but accuracy is not
guaranteed.
K -200°C to 1350°C
J -200°C to 1200°C
E -200°C to 1000°C
T -200°C to 400°C
N -200°C to 1300°C
R 0°C to 1700°C
S 0°C to 1700°C
B 400°C to 1800°C
W 0°C to 2000°C
2 3 4
5
: On
: Off
6
1
Select the input unit ( UNIT1 to 4 ) and channel ( 1-1
to 4-15 ), and check the box to enable the channel.
2
Select [Tc] .
3
Select the type of thermocouple to be used.
4
Select the temperature measurement range.
The type-B thermocouple setting is disabled when the 100
°
C
or 500
°
C range is selected. To use a type-B thermocouple,
first set the range to 2000
°
C.
5
Select the reference junction compensation
(RJC) method.
:
6
Enable/disable burn-out detection.
Setting options:(
∗
: default setting)
K
∗
, J, E, T, N, R, S, B, W
Setting options:(
∗
: default setting)
100
°
C
, ∗
500
°
C
, 2000
°
C
Setting options:(
∗
: default setting)
INT
∗
Use the HiLogger's internal compensation.Select
this when connecting the thermocouple (or com-
pensating leads) directly to the HiLogger. Mea-
surement accuracy is the sum of the temperature
measurement accuracy and the RJC accuracy.
EXT Use an external RJC method instead of the
HiLogger's internal compensation. Select this
when using an external cold junction reference
(e.g., ice water). HiLogger measurement accu-
racy is equivalent to the temperature measure-
ment accuracy.
Setting options:(
∗
: default setting)
OFF
∗
Disable burn-out detection. Normally when
the thermocouple is disconnected, the value
will fluctuate, etc. and will not be stable.
ON Detect burn-out during thermocouple measure-
ment. When a burn-out occurs, “BURNOUT” is
displayed as the numerical, cursor, or calcula-
tion value, and the following values are applied
to calculations and data storage: 327.66,
1638.3, and 3276.6°C for the 100, 500, and
2000°Cf.s. ranges, respectively. Note that the
recording interval setting is limited.
See:
"About the Recording Interval" (p .54)