24
The Interface Solution Experts
THZ
2
&
TDZ
2
Programmable Smart HART
Temperature Transmitter and Display
Smart Range Selection–
Select whether you choose
to view the process variable, use a custom curve table
or scale the input. Custom curve and input scaling
configuration are performed in the
Configure Range
menu.
C. Configure Range
Within the
Configure Range
menu are the capabilities
to configure Smart Ranging and capture the input.
1 Smart Ranging–
Configuration steps will vary
depending on whether
PV, Custom Curve
or
Input
Scaling
was selected in the
Configure Options
menu.
PV
1 LSL–
Displays the lower sensor limit (LSL) of the
attached sensor.
2 USL–
Displays the upper sensor limit (USL) of the
attached sensor.
3 Min Span–
Indicates the allowable minimum
difference between the upper range value (URV) and
lower range value (LRV).
4 LRV–
Enter the value you wish displayed as your
low range value when your process variable is output
at its lower end (0%).
5 URV–
Enter the value you wish displayed as your
upper range value when your process variable is
output at its upper end (100%).
Input Capture–
To match your input (zero) and output
(full scale) to a known value, use the
Input Capture
feature.
Apply your 0% value to your THZ
2
or TDZ
2
and press
Enter
at the prompt. This will set your 4mA value.
Repeat this step with a 100% value in order to set
your output to a known 20mA. Press
Exit
when you
have finished.
If Custom Curve is Enabled
1 LSL–
Displays the lower sensor limit (LSL) of the
attached sensor.
2 USL–
Displays the upper sensor limit (USL) of the
attached sensor.
3 Min Span–
Indicates the allowable minimum
difference between the upper range value (URV) and
lower range value (LRV).
4 CC Points–
Displays the number of Custom Curve
points you have enabled (2 to 128 points).
5 Custom Curve LRV–
Enter your Custom Curve
lower range value (LRV) for the lower end output value
(0%).
6 Custom Curve URV–
Enter your Custom Curve
upper range value (URV) for the upper end output
value (100%).
7 CC EGU–
Select the EGU you wish displayed for
your Custom Curve values.
If Scaling is Enabled
1 LSL–
Displays the lower sensor limit (LSL) of the
attached sensor.
2 USL–
Displays the upper sensor limit (USL) of the
attached sensor.
3 Min Span–
Indicates the allowable minimum
difference between the upper range value (URV) and
lower range value (LRV).
4 Sensor LRV–
Enter the sensor’s lower range value
(LRV).
5 Sensor LRV Scaled–
Select the value you wish as
your scaled LRV (for 0% value). Allowed span is from
-99999 to 99998.
6 Sensor URV–
Enter the sensor’s upper range value
(URV).
7 Sensor URV Scaled–
Select the value you wish as
your scaled URV (for 100% value). Allowed span is
from -99998 to 99999.
8 Scaling EGU–
Select the EGU you wish displayed
for your scaled input values.
D. Configure Output
This menu allows you to configure your instrument’s
analog and HART outputs.
Analog Output
Use this portion of the menu to set the
Output Zero
and Output Full
values, to trim the output and to reset
the trimmed output.
1 Output Zero–
Enter your lower range output current
value. Allowed values range from 3.6mA to 23.6mA.
2 Output Full–
Enter your upper range output current
value. Allowed values range from 3.6mA to 23.6mA.
