IM 01C25T01-01E
3-11
3. OPERATION
3.5 Detailed Setup
3.5.1
Bi-directional Flow Measurement
(a)
Bi-dir mode
enables selection of 50% output at an
input of 0 mmH
2
O.
F0317.EPS
(ENTER)
EJX:YOKOGAWA
Bi-dir mode
Off
off
on
HELP
SEND
ESC
ENTER
1. Device setup
4. Detailed setup
2. Signal condition
9. Bi-dir mode
Example: If measurement range is 0 to 3000mmH
2
O
(LRV = 0 mmH
2
O, URV = 3000 mmH
2
O)
Press
SEND (F2)
to send the data
to the transmitter, then check to
confirm that disappears.
Note: The measurement range changes to
3000 to 0 to
3000 mmH
2
O, corresponding the output of 0% to 50%
to 100%. Note that LRV and URV values are not
changed.
(SEND)
SEND
Call up the
Bi-dir mode
display
Select
on
, and press
ENTER (F4)
.
EJX:YOKOGAWA
Signal condition
5 Pres Damp 0.50 sec
6 Low cut 20.00 %
7 Low cut mode Zero
8 H/L swap Reverse
9 Bi-dir mode On
HELP
SEND
HOME
1
2
(b) Combining
Bi-dir mode
with
Xfer fnctn
provides
a square root output computed independently for
0% to 50% output and for 50% to 100% output.
20 mA (100% display)
4 mA (–100% display)
Output mode “LINEAR”
LRV
HRV
F0318.EPS
20 mA (100% display)
Low Cut
4 mA (–100% display)
Output mode “SQUARE ROOT”
LRV
HRV
3.5.2
Integral Indicator Display Mode
The mode setting for the output signal and the integral
indicator can be performed independently.
The output mode for the integral indicator is set as
specified in the order when the instrument is shipped.
Follow the procedure below to change the mode.
Example: Change from
Linear
to
Sq root
.
F0319.EPS
(ENTER)
EJX:YOKOGAWA
Disp Pres % fnctn
Linear
Linear
Sq root
HELP
SEND
ESC
ENTER
1. Device setup
4. Detailed setup
4. Display condition
2. P disp condition
1. Disp Pres % fnctn
Press
SEND (F2)
to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
SEND
Call up the
Disp Pres % fnctn
Display. Select
Sq root
, and press
ENTER (F4)
.
EJX:YOKOGAWA
P disp condition
1 Disp Pres % fnctn
2 Disp Pres % Reso
3 Pres disp point 2
HELP
SEND
HOME
1
2
If the instrument is equipped with an integral indicator
and the transfer function is sq root, “
” is displayed
on the integral indicator.
