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134
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<For KR31 1>
(1) In case of the DC voltage input
The 2
nd
terminal of each input terminal unit
is for the terminal for adjustment.
For the adjustment, connect to the 2
nd
terminal as shown in the right figure.
All terminals of its unit are adjusted by the
adjustment of the 2
nd
terminal.
(2) In case of the resistance thermometer
input
The 2
nd
terminal of each input terminal unit
is for the terminal for adjustment.
For the adjustment, connect to the 2
nd
terminal as shown in the right figure.
All terminals of its unit are adjusted by the
adjustment of the 2
nd
terminal.
(3) In case of the thermocouple input
The 1
st
, 6
th
and 12
th
terminals of each input terminal unit are the terminals for adjustment. For the
adjustment of thermocouples, connect to the 1
st
, 6
th
and 12
th
terminals independently as shown in the
right figure.
The electromotive force of the thermocouple input becomes small by the electromotive force equivalent
to the temperature at terminals. The instrument itself compensates for its value. This is called the
reference junction compensation. The input for the adjustment is entered with the reference
electromotive force (0°C at reference). Accordingly, the reference junction compensator is used for
reducing the reference junction compensated value.
DC standard voltage generator
Input terminal block
(+)
(-)
Standard variable resistor
Input terminal block
(B)
(B)
(A)
The 1
st
, 6
th
and 12
th
terminals are used for
adjusting 3 elements for measuring the
terminal temperature.
Ice + distilled water
Vacuum bottle
Reference junction compensator
Input terminal block
(+)
(-)
Thermocouple wire *
Test tube
Silicon oil