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98MANALIDP10AV Rev. A 8/16/11
Calibration
To access the Calibration mode (from normal operating mode), press the
Next
button. The dis-
play reads
CALIB
, the first item on the menu. Acknowledge your choice of this selection by press-
ing the
Enter
button. The display will show the first item in the Calibration menu. You can then
calibrate the items shown in Table 2.
Table 2. Calibration Menu
(For IDP10-V, substitute 1 volt for 4 mA and 5 volts for 20 mA.)
Item
Description
CAL AT0
Calibrate with zero pressure.
CAL LRV
Calibrate with pressure at 0% of transmitter range (LRV)
CAL URV
Calibrate with pressure at 100% of transmitter range (URV)
ADJ 4MA
Adjust nominal 4 mA output
ADJ20MA
Adjust nominal 20 mA output
ADJ 4MA causes the following four submenus
A 4mA
∆∆
Increase 4 mA output by large step
A 4mA
∇∇
Decrease 4 mA output by large step
A 4mA
∆
Increase 4 mA output by small step
A 4mA
∇
Decrease 4 mA output by small step
ADJ 20MA causes the following four submenus
A 20mA
∆∆
Increase 20 mA output by large step
A 20mA
∇∇
Decrease 20 mA output by large step
A 20mA
∆
Increase 20 mA output by small step
A 20mA
∇
Decrease 20 mA output by small step
For IDP10-V, substitute 1 volt for 4 mA and 5 volts for 20 mA.
NOTE
1.
It is not necessary to use the
ADJ4MA
or
ADJ20MA
menu selections unless there
is a plant requirement to make the 4 and 20 mA output values exactly
match readings on certain plant calibration equipment and the “zero”
and “span” operations done result in a small but unacceptable difference
between the transmitter mA output and the test equipment mA readout
values.
2.
The IDP10-A transmitter can be re-ranged without the application of
pressure. See
EGU LRV
and
EGU URV
in Figure 24.
Proceed to calibrate your transmitter by using the
Next
key to select your item and the
Enter
key
to specify your selection per Figure 23. At any point in the calibration you may
Cancel
,
restore your prior calibration and return to the online mode or
Save
your new
calibration.
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