<7. Operation>
7-10
IM 01C25K01-01E
7.7.7 Damping Time Constant Configuration
The damping time constant for the amplifier assembly can be set. Quick Response Parameter is automatically
set to ON when the damping time constant is set to less than 0.5 seconds. Damping time constant is rounded
off to two decimal places.
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screw
Change the first digit
Set all other
characters in the
same way
Setting range: 0.00 to 100.00 (seconds)
Blinking
Blinking
Blinking
Save ?/
Cancel ?
push
Go to the next Character
7.7.8 Output Mode Configuration
Pressure Output Mode (Linear or Sq root) can be
selected by turning the external adjustment screw.
Please refer to 7.7.5 Pressure Unit Configuration for
how to select and set the enumerated value.
7.7.9 Display Out 1 Configuration
Display Out1 can be selected by turning the
external adjustment screw. Please refer to 7.7.5
Pressure Unit Configuration for how to select and
set the enumerated value.
7.7.10 Re-range by applying actual
pressure (LRV/URV).
This feature allows the lower and upper range
values to be setup with the actual input applied.
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Follow the procedure below to change the LRV and
URV settings.
[Example]
Rerange LRV to 0 and URV to 3 MPa.
1) Connect the transmitter and apparatus as
shown in Figure 8.1 and warm it up for at least
five minutes.
2) Press the push-button. The integral indicator
then displays “LRV.SET.”
3) Apply a pressure of 0 kPa (atmospheric
pressure) to the transmitter.
(Note 1)
4) Turn the external adjustment screw in the
desired direction. The integral indicator displays
the output signal in %.
(Note 2)
5) Adjust the output signal to 0% (1 V DC) by
rotating the external adjustment screw. Press
the push button to save the value. Doing so
completes the LRV setting.
(Note 3)
6) Press the push-button. The integral indicator
then displays “URV.SET.”
7) Apply a pressure of 3 MPa to the transmitter.
(Note 1)
8) Turn the external adjustment screw in the
desired direction. The integral indicator displays
the output signal in %.
(Note 2)
9) Adjust the output signal to 100% (5 V DC)
by rotating the external adjustment screw.
Press the button to save the value.Doing so
completes the URV setting.
10) Press the push-button. The transmitter then
switches back to the normal operation mode
with the measurement range of 0 to 3 MPa.
Note 1: Wait until the pressure inside the pressure-detector
section has stabilized before proceeding to the next
step.
Note 2: If the pressure applied to the transmitter exceeds the
previous LRV (or URV), the integral indicator may
display error number “AL.30” (In this case, the output
signal percent and “AL.30” are displayed alternately
every two seconds). Although “AL.30” is displayed,
you may proceed to the next step. However, should
any other error number be displayed, take the
appropriate measure in reference to , “Errors and
Countermeasures” in each communication manual.
Note 3 : Changing the lower range value (LRV) also
automatically changes the upper range value (URV),
keeping the span constant. New URV=previous
URV+(new LRV–previous LRV)
