Baker Hughes Panametrics Sentinel LCT8, Руководство пользователя

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3.8 Calibrating the analog output
To calibrate the 4-20 loop, refer to Figure 69 below and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
Figure 69: Calibrating the analog output
Legend
Green At least user 3 level access required to follow the step.
Dotted
green
Not all transitional screens are shown (at least user 3 level
access required).
Green Option only visible to user 3 or above.
NOTE 1: Make sure the
equipment used is properly
calibrated.
NOTE 2: After completing
calibration set the mode
selection to normal
Use

or

arrow to highlight the
preferred option and press 
twice to confirm selection.
To calibrate 4mA (0%),
set percent value to 0
1. If the base trim
value is not 4mA set
to 4mA
2. Enter the value read
in ammeter into the
base trim
3. Verify the ammeter
reads 4mA +/-
0.02mA. If not,
repeat steps 2 and 3
To calibrate 20mA
(100%), set percent
value to 100
1. If the span trim
value is not 20mA
set to 20mA
2. Enter the value read
in ammeter into the
base trim
3. Verify the ammeter
reads 20mA +/-
0.02mA. If not,
repeat steps 2 and 3


69