Dynisco ATC770, Installation And Operation Manual

Page: 33 / 88

ATC770 Microprocessor-Based Pressure/Process Controller 33
Fig. 8 Input/Output Jumper Location
6.1.2 S
ETTING THE
S
HUNT
C
ALIBRATION FOR
S
TRAIN
G
AGE
T
RANSDUCERS
AND
A
MPLIFIED
T
RANSMITTERS
The Dynisco strain gage transducers and amplified transmitters (if so equipped) have an internal
shunt to allow the ATC770 to set the internal scaling for correct display. To Access the Shunt
Calibration parameter, press the
FUNC key until
nonE and GROUP show on the display. Press the
▲
key until 4 shows in the upper display. Press the
FUNC
key and the upper display will show OFF
while the lower display shows SHUNT. Press the
▲
or
▼
key until the upper display changes to the
ON. Press the
FUNC
key to set the value and move to the next Shunt parameter.
The upper display will show 80.0 while the lower display shows SHNT%. In most cases, the