ABB STT04 - Page 140

BCN PRESSURE TRANSMITTER
CALIBRATION
G - 7
Enter the low calibration pressure using the number
keypad. Press . Then enter the high calibra-
tion pressure.
Apply the low range value to the input of transmitter
as specified earlier.
Apply the high range value to the input of transmitter
as specified earlier.
Apply the middle range value. This value is calcu-
lated by STT04 terminal using low and high values.
If configured digitally this adjust selection does not
appear. Adjust transmitter output using up and down
arrow keys.
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 process without affecting fine adjustment.
Adjust the transmitter output using 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
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