Yokogawa EJA440E - Manual (Page 29)

<3. Parameter Setting>
3-16
IM 01C25T01-06EN
3.3.2 Analog Output Signal Adjustable
Range
Output signal adjustable range at normal operating
condition are set as shown below at the factory
when the instrument is shipped, and output signal
are limited by these value.
Lower limit Upper limit
Standard
Option code /C1
3.6 mA 21.6 mA
Option code /C2 and /C3 3.8 mA 20.5 mA
Output signal range can be changed between
3.6mA and 21.6mA to match it to the equipment on
the receiving side.
Lower value is set at AO lower limit and upper
value is set at AO upper limit respectively.
Follow the procedure below to change the upper
and lower values.
• Procedure to call up the display
DD and DTM
(excluding EJX_
HART 5[1.2])
[Root Menu] → Detailed setup →
Output condition → Analog output
→
EJX_HART 5[1.2]
DTM
Configuration → Analog output →
→ AO lower limit Set the lower value (mA)
→ AO upper limit Set the upper value (mA)
Set the values as below.
Lower value < Upper value
3.3.3 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.
• Procedure to call up the display
DD and DTM
(excluding EJX_
HART 5[1.2])
[Root Menu] → Detailed setup
→ Display condition → P disp
condition →
EJX_HART 5[1.2]
DTM
Configuration → Local Display
→
→ Disp Pres % fnctn Select “Linear” or “Sq root”
If the instrument is equipped with an integral
indicator and the transfer function is sq root, “ ” is
displayed on the integral indicator.
3.3.4 Integral Indicator Scale Setup
The following five displays are available for integral
indicators: input pressure, % of range, user set
scale, input static pressure* 1 , and % of static
pressure range* 1 . A cycle of up to four displays can
be shown by assigning variables to the parameters
at Disp select.
F0305.ai
Available displays
Input pressure
(PRES)
% of range
(PRES %)
User set scale
(ENGR. PRES)
Input static pressure
(SP)* 1
% of static pressure range
(SP %)* 1
Indicates values of input pressure
with the indication limits –99999 to
99999.
Indicates input pressure in –2.5 to
110% range depending on the
set range ( LRV and URV).
Indicates values depending on the
engineering range ( Engr LRV and
Engr URV) with the unit (Engr Unit).
Indicates input static pressure with
the indication limits –99999 to 99999.
Reference pressure is factory-set in
absolute.
Indicates input static pressure in
–10 to 110% range depending on
the set range ( SP LRV and SP
URV).
PRES 456 kPa
Description
and related parameters
PRES % 45.6 %
SP 4.000 MPa
SP % 52.6 %
Engr LRV 0.0
Engr URV 45.0
Engr exp ×100
Engr Unit m3/min
Engr point 1
*1: Available for differential pressure transmitter.
See (a.) through (d.) shown below for the setting
procedures.