Yokogawa Wireless Temperature Transmitter YTA510 - Manual (Page 22)

3. OPERATION
IM 01C50T01-01E 3-9
3.4.4 PV Range
The range for PV corresponding to the 4 to 20mA
output signal is set at the factory before shipment.
Following are the procedures to change the range.
Example: To change the range from “ 0 to 100 ° C ” to
“ 50 to 200
°
C ”.
(1) Changing the range with Keypad
– LRV, URV –
YTA :
Hot key
1. Range values
2. Chng Wrt Protect
HELP SAVE ESC ENTER
1
YTA :
Range values
1 PV LRV 0.00 degC
2 PV URV 100.00 degC
3 PV Unit degC
4 PV LSL -200.00 degC
5 PV USL 850.00 degC
HELP DEL ESC ENTER
2
YTA :
LRV
0.0 degC
50.0
HELP DEL ESC ENTER
3
YTA :
Range values
1 PV LRV 50.00 degC
2 PV URV 100.00 degC
3 PV Unit degC
4 PV LSL -200.00 degC
5 PV USL 850.00 degC
HELP SEND ESC ENTER
4
YTA :
URV
100.00 degC
200
HELP DEL ESC ENTER
5
YTA :
Range values
1 PV LRV 50.00 degC
2 PV URV 200.00 degC
3 PV Unit degC
4 PV LSL -200.00 degC
5 PV USL 850.00 degC
HELP SEND
6
SEND
Press Hot key and call up “ Range
values ”.
Select the “ 1. PV LRV ” to set the
Lower Range Value.
Setting limit dependig on the
selected sensor type is shown as
“
4. PV LSL .” And “ 5. PV USL ”.
Enter “ 50 ”, and press ENTER[F4] .
To set the Upper Range Value,
select the “
2 PV URV ”.
Setting limit is shown as “ 4 PV
LSL ” and “ 5 PV USL ”.
Press SEND[F2] to send the new
range value to the transmitter.
Confirm that disappears.
Enter “ 200 ” , and press ENTER[F4] .
NOTE
It is possible to set LRV>URV. This setting
reverses the 4 to 20 mA output signal.
Setting Conditions:
LSL <= LRV <= USL
LSL <= URV <= USL
|URV – LRV| >= Recom
mended Min. span