Damping Time Constants; Output Signal Low Cut Mode Setup - YOKOGAWA Dpharp vigilantplant EJA Series User Manual

(5) Damping Time Constants

The damping constant is set to 2.0 seconds at the
factory. When changing the damping constant, proceed
as follows:
Example: To change from 2.0 seconds to 0.2 seconds
Call up the Damp display.
1. Device setup
3. Basic setup
6. Damp
1
EJA:
Damping
2.00 s
2.00
(ENTER)
HELP DEL ESC ENTER
Enter 0.2 and press ENTER (F4).
2
EJA:
Basic Setup
1 Unit kPa
2 Re-range
3 Device information
4 Xfer fncfn Linear
5 Damp 0.20s Press SEND (F2) to send the data
HELP SEND HOME ENTER
to the transmitter.
3
EJA:
Set to nearest
possible value
occurred writing Pres
damping
Press OK...
A confirmation display appears.
DEL SET ESC OK
Press OK (F4), then check to
confirm that
NOTE
1. Only the damping constants listed in Table 2
are available. When a value not listed in
Table 2 is entered, the value in Table 2
nearest the entered value is set.
2. The damping constant set with the procedure
here is of the damping constant in the trans-
mission part (electric circuit). The damping
constant of the capsule assembly shall be
added to obtain the overall damping constant
of the transmitter.
Table 2
0.2 Sec
0.5 Sec
1.0 Sec
2.0 Sec
4.0 Sec
8.0 Sec
16.0 Sec
32.0 Sec
64.0 Sec
T0203.EPS
'0 . 2'
(OK)
disappears.
SEND

(6) Output Signal Low Cut Mode Setup

Low cut can be used on the output signal to stabilize
the output near the zero point.
The low cut point can be set in a range from 0 to 20%
of output. (Hysteresis of cut point: ±1%)
Either LINEAR or ZERO can be selected as the low
cut mode.
Unless otherwise specified, the cut mode is set to
LINEAR at the factory.
Example: To set the low cut range to 20% and the cut mode
to ZERO, proceed as follows:
(%)
50
20
0
For low cut in linear mode
Figure 2.2.2 Low Cut Mode
1. Device setup
F0215.EPS
3. Basic setup
7. Low Cut, 8. Cut mode
EJA:
Low cut
10.00%
10.00
HELP DEL
EJA:
Cut mode
Linear
Linear
Zero
HELP SEND
EJA:
Basic Setup
4 Device information
5 Xfer fnctn Linear
6 Damp
7 Low cut
8 Cut mode
DEL SEND
2-9
2. HART COMMUNICATOR OPERATION
(%)
50
20
0
50
Input (%)
For low cut in zero mode
'2 0'
(ENTER)
ESC ENTER
Call up the Low cut, and set to
20%.
ESC ENTER
(ENTER)
Select the Cut mode, and set to
Zero.
(SEND)
0.50s
20.00 %
Zero Press SEND (F2) to send the date,
HOME OK
then check to confirm that
disappears.
50
Input (%)
F0216.EPS
SEND
F0217.EPS
IM 01C22T01-01E