Input Calibration - Presys T-1200PIR Technical Manual

PRESYS
 Instruments

7.1 - Input Calibration

Select the corresponding mnemonic and apply the signals presented in the Select the corresponding mnemonic and apply the signals presented in the Select the corresponding mnemonic and apply the signals presented in the
tables below.
When calibrating inputs, the display shows on the 2
by the calibrator and on the 1
Note that the applied signals just need to be close to the values shown in the Note that the applied signals just need to be close to the values shown in the Note that the applied signals just need to be close to the values shown in the
table.
Once the signal has been applied, store the values of the 1 Once the signal has been applied, store the values of the 1 Once the signal has been applied, store the values of the 1
points, by pressing keys 1 (1
mV Input
mA Input
Single range
Input calibration for  is performed in two steps:
a) Application of mV signal: a) Application of mV signal: a) Application of mV signal:
For the calibration below, leave terminals RTD3 (+) and RTD4 (+) short-circuited. For the calibration below, leave terminals RTD3 (+) and RTD4 (+) short-circuited. For the calibration below, leave terminals RTD3 (+) and RTD4 (+) short-circuited.
mV Signal mV Signal mV Signal
V_OHM3 V_OHM3 V_OHM3
V_OHM4 V_OHM4 V_OHM4
b) Application of standard resistors: b) Application of standard resistors: b) Application of standard resistors:
Co Connect a decade box or standard resistors on terminals RTD1, RTD2, RTD3 Connect a decade box or standard resistors on terminals RTD1, RTD2, RTD3 nnect a decade box or standard resistors on terminals RTD1, RTD2, RTD3
and RTD4 (4-wire connection). and RTD4 (4-wire connection). and RTD4 (4-wire connection).
resistors resistors resistors
OHM3 OHM3 OHM3
OHM2 OHM2 OHM2
OHM1 OHM1 OHM1
The cold junction calibration (CJC) is performed measuring the mV (-) terminal The cold junction calibration (CJC) is performed measuring the mV (-) terminal The cold junction calibration (CJC) is performed measuring the mV (-) terminal
temperature. Store only the 1 temperature. Store only the 1 temperature. Store only the 1
st
line the same value is expressed as a percentage. line the same value is expressed as a percentage. line the same value is expressed as a percentage.
st
point) and 2 (2
1
G4 0.000 mV 0.000 mV 0.000 mV
G3 0.000 mV 0.000 mV 0.000 mV
G2 0.000 mV 0.000 mV 0.000 mV
G1 600.000 mV 600.000 mV 600.000 mV
1 1 1
0.0000 mA 0.0000 mA 0.0000 mA
is performed in two steps: is performed in two steps:
Terminals Terminals Terminals
RTD3(+) and mV( RTD3(+) and mV(-) RTD3(+) and mV(- - ) )
RTD4(+) and mV( RTD4(+) and mV(-) RTD4(+) and mV(- - ) )
1
20.000 
100.000 
500.000 
st
point.
Cold Junction
CJC
nd
nd
point). point). point).
st
point point point
120.000 mV 120.000 mV 120.000 mV
600.000 mV 600.000 mV 600.000 mV
2400.000 mV 2400.000 mV 2400.000 mV
st st st
point point point
20.0000 mA 20.0000 mA 20.0000 mA
st
1 point
90.000 mV
90.000 mV
st
point
2200.000 
st
1 point
32.03 ºC
T-1200PIR
line the value measured line the value measured line the value measured
st st st nd nd nd
and 2 and 2 and 2 calibration calibration calibration
nd n n d d
2 2 2 point point point
70.000 mV 70.000 mV 70.000 mV
nd nd nd
2 2 2 point point point
nd
2 point
120.000 mV
120.000 mV
nd
2 point
50.000 
500.000 
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