3-5
Chapter 3 Starting and Stopping this Device
[Software Write Protection]
For information regarding software write protection, see the operation manual for the communicator.
CommStaff Section 2-1, “Menu List”
HART Communicator Section 2-3, “Device Menu Tree”
(3) Indicator Settings
The settings for display format (linear / square root) and display units (% / real pressure/
engineering unit scale) of the indicators can be checked. “Real pressure” displays actual measured
values in the selected pressure units.
“Engineering unit scale” displays values for flow rate, level, etc., in the specified scale and units. If
engineering unit scale is set, EULO (value at 0% output) and EUHI (value as 100% output) are set
as well. With engineering unit scale, units can be selected or, alternatively, arbitrarily defined units
can be displayed.
(4) Damping Time Constant Setting
The values which can be specified for the damping time are as follows.
During SFN communication:
0, 0.16, 0.32, 0.48, 1, 2, 4, 8, 16, 32 (unit: seconds)
During HART communication:
Specify a value (to two decimal places) in the 0.00–120.00 second range.
Note:
Transmitter responsiveness varies with each model. When replacing an instrument, adjust the
damping time constant as necessary so that it is appropriate for the instrumentation loop.
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