Yokogawa Wireless Temperature Transmitter YTA510 - Manual (Page 23)

3. OPERATION
IM 01C50T01-01E 3-10
(2) Changing the range while applying an
actual input – Apply values –
This feature allows the lower and upper range
values to be setup automatically with the actual
input applied.
YTA:
WARN-Loop should be
removed from
automatic control
HELP SAVE ABORT OK
1
YTA :
Set the:
1 4mA
2 20mA
3 Exit
HELP SEND ABORT ENTER
2
1. Device setup
2. Diag/Service
3. Calibration
1. Apply values
YTA :
Apply new 4ma input
HELP SEND ABORT OK
3
YTA :
Current applied
process value:50.10 degC
1 Set as 4mA value
2 Read new value
3 Leave as found
HELP SEND ABORT ENTER
4
YTA :
Set the:
1 4mA
2 20mA
3 Exit
HELP SEND ABORT ENTER
5
4
3
Press OK[F4] to make the control
loop manual.
Call up “ Apply Values ” display.
To set the lower range value, select
“
1. 4mA ” and press ENTER[F4] .
Apply the input which corresponds
to 4mA. After obtaining stable input,
press
OK[F4] .
Select “ 2. 20mA ” and press
ENTER[F4] . Apply the value which
corresponding to 20mA and enter it
as URV. (Refer to procedures
and .)
After completing the range change,
select “
3.Exit ” and press ENTER[F4] .
The LRV to be changed is 50.10
degC.
• Selecting item 1 sets LRV to
50.10degC.
• Selecting item 2 reads LRV
again.
To set LRV to “ 50.10 ”, select item 1
and press ENTER[F4] .
3.4.5 Damping Time Constant
Setting the response time of each Process Variable to
make it vary slowly with a rapid change in input. Set
the value from 0 to 99 seconds.
If the time constant is set to 2 seconds, Transmitter
calculates a reading every cycle time using the damp-
ing equation, to make the output 63 percent of the
input range after 2 seconds.
This damping time constant is normally set to work
when the temperature makes a step change within 2
percent of the output range. The damping can be
changed using the “PV damp point” parameter .
YTA :
PV Unit&Damp
1 PV Unit degC
2 PV Damp 2 s
3 PV damp point 2 %
HELP SAVE HOME ENTER
1
YTA :
Snsr1 damp
2 s
5
HELP SAVE ABORT ENTER
2
1. Device setup
1. Process variables
2. Variable setting
Unit & Damp
1. PV Unit&Damp
YTA :
PV Unit&Damp
1 PV Unit degC
2 PV Damp 5 s
3 PV damp point 2 %
HELP SEND HOME ENTER
3
SEND
Example: To set the damping time constant for PV to “ 5 ”
seconds.
Enter “ 2 ” to call up “ PV damp ”
display.
Enter new value, and press
ENTER[F4] .
Press SEND[F2] to send the
setting to the transmitter.
Check that disappears.
# When necessary, change the
setting of “PV damp point”.
Call up “ PV Unit&Damp ” display.