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PRESYS
Instruments
7 - Calibration
Warning: Enter the following options only after understanding them completely.
Otherwise, it may be necessary to return the instrument to the factory
for recalibration!
Select CAL option from the main menu and press the ENTER key. You should
then enter the password (PASSWORD) 9875 to access the calibration menu.
The password functions as a protection to calibration ranges. After the password
is entered, the menu displays the options:
You should then choose the input range (IN) as the output range (OUT) is not
available for the user. DATE is an option which allows you to record the date on which
the calibration was performed and once it has been filled in, it will be displayed every
time the calibrator is turned on.
Options for IN calibration are:
7.1 - Input Calibration
Select the corresponding mnemonic and apply the signals presented in the tables
below.
When calibrating inputs, the display shows on the 2
the calibrator and on the 1
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
points, by pressing keys 1 (1
mV Input
mA Input
Single range
IN
OUT
mV
mA
PROBE
st
line the same value is expressed as a percentage.
st
point) and 2 (2
G4
G3
G2
G1
600.000 mV
0.0000 mA
DATE
OHM
nd
point).
st
1
point
0.000 mV
0.000 mV
0.000 mV
st
1
point
CJC
nd
line the value measured by
st
nd
and 2
nd
2
point
70.000 mV
120.000 mV
600.000 mV
2400.000 mV
nd
2
point
20.0000 mA
T-1200PH
calibration
Page 19
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