ABB STT04 - Page 128

PTS PRESSURE TRANSMITTER
CALIBRATION
E - 6
Enter the low calibration pressure value and press
. Enter the high calibration pressure value.
Apply the low calibration pressure to the input of
transmitter as specified earlier.
Apply the high calibration pressure to the input of
transmitter as specified earlier.
Adjust transmitter output using the up and down
arrow keys. If configured digitally this adjust display
does not appear.
NOTE: When increasing or decreasing the mA sig-
nal, the increments of change increase with succes-
sive depressions until the maximum level of change
is reached. By changing direction the smallest incre-
ment of change returns. This technique speeds up
the adjustment process without affecting fine
adjustment.
Adjust the transmitter output using the up and down
arrow keys.
Key Display Comments
ENTER
LOW CALIB PRESSURE
nn.nn UNITS
HIGH CALIB PRESSURE
nn.nn UNITS
ENTER
ENTER
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER
ENTER
APPLY PRESSURE OF
nn.nn UNITS
THEN HIT ENTER
ENTER
ADJUST TO 4 mA
THEN HIT ENTER
ENTER
ADJUST TO 20 mA
THEN HIT ENTER
ENTER
ID TAGNAME
READY