DYNISCO UPR800 Series Instruction Manual
Page | 50
9.0 OPERATION
9.1 Primary Input Calibration
NOTE: In this section the word
Calibration
means to match the Instrument to the input
device, so that a specific signal from the input device is equated to a specific pressure
and no other, (to the capabilities of its input resolution)
Apply power to the cabinet and allow the system to stabilize for about 30 minutes. Allow
the transducer or other input device to come up to operating conditions.
9.1.1 Calibration of Pressure Transducers Equipped with an Internal Shunt
Resistor
Be sure that the full scale and low scale values (
PI.FSV
and
PI.LSV
) have been set to
match the range of the transducer and that the
SHUNT
function is
ON
and set to the
correct percentage (80% for a typical Dynisco transducer).
To calibrate the transducer to the instrument, press the
FUNC
key until
nonE
and
GROUP
show on the display. Press the
t
key until
2
shows in the upper display. Press
the
FUNC
key and the lower display changes to
ZERO.C
. The upper display shows
OFF
.
Press the
u
or
t
keys until the upper display changes to
ON
. Press the
FUNC
key to
calibrate the zero value. The lower display changes to
SPAN.C
. The upper display
shows
OFF
. Press the
u
or
t
keys until the upper display changes to
ON
.
Press the
FUNC
key to calibrate the span value. When the legend
DSP.FL
appears in
the lower display, calibration is complete. Press
RESET
to return to the operating screen.
9.1.2 Calibration of Amplified Pressure Transmitters with an Internal Shunt
Resistor
Be sure that the full scale and low scale values (
PI.FSV
and
PI.LSV
) have been set to
match the range of the transducer and that the
SHUNT
function is turned
OFF
.
To calibrate the transducer to the instrument, press the
FUNC
key until
nonE
and
GROUP
show on the display. Press the
t
key until
2
shows in the upper display. Press
the
FUNC
key and the lower display changes to
ZERO.C
. The upper display shows
OFF
.
Press the
u
or
t
keys until the upper display changes to
ON
. Press the
FUNC
key to
calibrate the zero value. The lower display changes to
SPAN.C
. The upper display
shows
OFF
. Press the
u
or
t
keys until the upper display changes to
CLEAr
. Press
the
FUNC
key to calibrate the span value. When the legend
DSP.FL
appears in the lower
display, calibration is complete. Press
RESET
to return to the operating screen.
9.1.3 Calibration of Pressure Transducers with External Shunt Resistors
Install the external shunt resistor across terminals 13 (signal -) and 14 (Cal 2). Be sure
that the full scale and low scale values (
PI.FSV
and
PI.LSV
) have been set to match the
range of the transducer and that the
SHUNT
function is
ON
and set to the correct
percentage (as supplied by the transducer manufacturer. If the values supplied is an
actual pressure value, convert to a percentage and enter in
SHNT.%
).
Содержание UPR800 Series
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