68
Retransmission base scale (Setting range: -100.0 to 100.0%) (Option)
Retransmission span scale (Setting range: -100.0 to 100.0%) (Option)
[Description]
• The retransmission base scale and span scale can be set
as shown below. Unit for the setting is %.
Outputtype Descriptionofpercentage
PV/SV/DV Percentage of input measurement
range (Note 1)
MV Output value
Note 1: Calculate the set value by using the following for-
mula (refer also to the setting example shown below).
Set value (%) = (A ÷ B) × 100 [%]
A = Temperature to be set – Set value of parameter "P-SL"
B = Set value of parameter "P-SU" – Set value of "P-SL"
Related parameters:
(page 67)
[Note]
• Be sure to always set smaller than .
[Setting example] At K thermocouple input of 0 to 400˚C, make the setting so that the PV (value
of retransmission output type) becomes 0% at 100˚C, and 100% at 300˚C.
Press the key to display .
Press the or key to flicker and to display .
Press the key once.
will be displayed and will be registered for the retransmission base scale.
Press the key once.
will be displayed and will be registered for the retransmission span scale.
Press and hold the for five seconds.
will be displayed.
Press the or key to flicker and to display .
(Repeat the procedure from 7 to 9 to check the set value.)
(Repeat the procedure from 3 to 5 to check the set value.)
Press the key once. The current setting value will be displayed.
Press the key to display .
SEL
SEL
SEL
1.
8.
If you want to display the operation status, press and hold the key for two seconds.
The SV will be displayed on the display area.
10.
6.
7.
SEL
9.
SEL
5.
Press the key once. The current setting value will be displayed.
SEL
3.
2.
4.
Display Operating procedure
PV indication
PV indication
SV indication
If unoperated state continues, the PV will be displayed.
• When the value of retransmission output (example: SV)
becomes equal to the set value of Ao-L, the retransmis-
sion output becomes 0% (output).
• When the value of retransmission output (example: PV)
becomes equal to the set value of Ao-H, the retransmis-
sion output becomes 100% (output).
Since the measurement range is 0 to 400˚C, P
–
SL = 0 (lower limit value of measurement range), and P
–
SU = 400 (upper
limit value of measurement range). So, from the formula shown above,
A = (100˚C
–
0) or (300˚C
–
0), B = 400
–
0 = 400
1) Setting Ao-L : What position is 100˚C in the temperature range from 0 to 400˚C ? = 25% (=(100
–
0) ÷ 400 × 100 [%]) → Ao-L = 25.0 (%)
2) Setting Ao-H : What position is 300˚C in the temperature range from 0 to 400˚C ? = 75% (=(300
–
0) ÷ 400 × 100 [%]) → Ao-H = 75.0 (%)
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