IM 01C22T01-01E
2-10
2. HART COMMUNICATOR OPERATION
(7) Bi-directional Flow Measurement
(a)
Bi-dir mode
enables selection of 50% output at an
input of 0 mmH
2
O.
F0218.EPS
(ENTER)
EJA:
Bi-dir mode
OFF
off
on
HELP
SEND
ESC
ENTER
Call up the Bi-dir mode Display
Select on, and press ENTER (F4).
Press SEND (F2) to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
1. Device setup
4. Detailed setup
2. Signal condition
8. Bi-dir mode
SEND
Note: The measurement range changes to –3000 to 0 to
3000mmH
2
O (output 0% to 50% to 100%).
Note that LRV and URV are not changed.
Example: If measurement range is 0 to 3000mmH
2
O
(LRV = 0 mmH
2
O, URV = 3000 mmH
2
O)
(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
F0219.EPS
20 mA (100% display)
Low Cut
4 mA (–100% display)
Output mode “SQUARE ROOT”
LRV
HRV
(8) Integral Indicator Display Mode
F0220.EPS
(ENTER)
EJA:
Display fnctn
Linear
Linear
Square Root
HELP
SEND
ESC
ENTER
Select Square Root and press
ENTER (F4).
Press SEND (F2) to send data.
(SEND)
1. Device setup
4. Detailed setup
4. Display condition
2. Display fnctn
Example: Change from Linear to Sq root
(9) Integral Indicator Scale
T0204.EPS
Display
Mode
Display
Related
Parameters
NORMAL %
USER SET
USER & %
INP PRES
PRES & %
% rnge 45.6%
Description
Engr disp range
20.0M
% rnge
45.6%
Engr disp range
20.0M
Pres 456 kPa
% rnge 45.6%
Pres 456 kPa
Indicates –5 to
110% range
depending on the
set range (LRV,
URV).
Indicates user set
and % alternately
in 3 second
intervals.
Indicates input
pressure.
Indicates input
pressure and %
alternately in 3
second intervals.
Displays values
depending on
engr disp LRV
and engr disp
URV Units set
using engr disp
unit are not
indicated.
* The number of lines displayed on the LCD is determined by the
number of LRV and URV lines set on the brain terminal.
See (a) through (c) for each setting procedure.
