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PRESYS
Instruments
a) Application of mV signal:
For the calibration below, leave terminals RTD3 (+) and RTD4 (+) short-circuited.
mV Signal
V_OHM3
V_OHM4
b) Application of standard resistors:
Connect a decade box or standard resistors on terminals RTD1, RTD2, RTD3 and
RTD4 (4-wire connection).
Resistors
The cold junction calibration (CJC) is performed measuring the mV(-) terminal
temperature. Store only the 1
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Terminals
RTD3(+) e mV(-)
RTD4(+) e mV(-)
OHM3
OHM2
OHM1
st
point.
Cold Junction
CJC
TE -25N / TE-35N / TE-50N
st
1
point
90,000 mV
90,000 mV
st
1
point
20.000
100.000
500.000
st
1
point
32,03 ºC
nd
2
point
120,000 mV
120,000 mV
nd
2
point
50.000
500.000
2200.000
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