<3. Parameter Setting >
3-10
IM 01C50T01-02EN
3.2 Parameter Description
The followings outline the functions of the HART
parameters for YTA.
• Review (→ 3.3)
Before starting operation, review all the
configuration of the transmitter to confirm that it
meets the current application.
• Sensor Configuration (→ 3.4.1)
When changing the sensor type from the
current setting to another, it is necessary to
change some parameter settings.
• Process variable mapping (→ 3.4.2)
Process variable is to be assigned as primary
(PV), secondary (SV), tertiary (TV) and fourth
(QV) Variable and can be monitored on the
Integral indicator or Handheld terminal. Primary
variable (PV) is output as the 4 to 20mA analog
signal.
• Unit (→ 3.4.3)
Choose the engineering unit for the process
variables assigned as PV,SV, TV, QV and the
device variables from °C, Kelvin, °F and °R .
When mV or ohm is specified as an input type,
the unit is automatically set as mV or ohm.
• PV Range (→ 3.4.4)
Change the range of PV to be output as the 4
to 20mA DC. There’s two ways to set the range
value.
<a> Setting by keypad <b> Setting by applying
value
• Damping time constant (→ 3.4.5)
Setting the response time of the transmitter
smooths the output with rapid changes in input.
• Device Information (→ 3.5.1)
Set data in Tag, Message, and Descriptor
parameters.
• Test Output (→ 3.5.2)
Make the transmitter output a fixed current from
-2.5 through 110 % in 0.1% increments for loop
checks.
• Burnout Function (→ 3.5.3)
Configure the current output value in sensor
failure. Select from High, Low and User setting
value.
• Integral Indicator Display Mode (→ 3.5.4)
To change items to be displayed on the Integral
Indicator.
• Write Protect (→ 3.5.5)
To enable / disable write protection of
parameters.
• Sensor trim (→ 3.5.6)
The trim adjustment function allows the user
to add a compensation to the factory set
characterization curve to more closely match
the input signal.
• Analog Output trim (→ 3.5.7)
Adjust the output value.
• Sensor Backup Function (→ 3.5.8)
Configure a transmitter to automatically transfer
the input from Sensor1 to Sensor2 when
Sensor1 fails.
• Burst Mode (→ 3.5.9)
In the burst mode, a transmitter continuously
sends a selected set of data.
• Multidrop Mode (→ 3.5.10)
Up to 63 transmitters can be connected when
set in the multidrop mode.
• Sensor Matching Function (→ 3.5.11)
This function is available only when optional
specification /CM1 is specified.
• CJC Selection (→ 3.5.12)
For thermocouple input, the terminal
temperature measured by an internal sensor is
used for Cold Junction Compensation function.
• TC User Table (→ 3.5.13)
This function enables users to calculate
temperature by creating their own table for
TC sensors for the conversion between
temperature and electromotive force.
• Simulation (→ 3.5.14)
Using the simulation function, the output signal
can be confirmed by setting any value and
status to the selected device variable. Test
device variable and Test status are available.
• Squawk (→ 3.5.15)
This feature can be used to identify the
communicating transmitter by remotely causing
LCD to display the particular pattern.
• Output Fluctuation Suppression (→ 3.5.16)
Set when you do not want to reach alarm level
due to sudden output fluctuation such as sensor
disconnection.
