<7. HART Communication>
7-12
IM 01C25W05-01EN
• Recalling and setting the differential pressure/
pressure decimal place parameters
Recall
parameters
[Root menu] → Detailed setup →
Display condition → Disp condition →
DP disp point
Set the decimal place for differential
pressure to 0, 1, 2, 3, or 4.
Pres 1 disp
point
Set the decimal place for module 1 side
pressure to 0, 1, 2, 3, or 4.
Pres 2 disp
point
Set the decimal place for module 2 side
pressure to 0, 1, 2, 3, or 4.
(4) Setting the user set PV scale unit and range
The Engr disp range parameter can be used to
select a unit from registered units or the user’s
original unit.
Recall
parameters
[Root menu] → Detailed setup →
Display condition → Engr disp range →
Set Engr Unit
(method)
Select the unit from the table below.
Modify Engr
Unit (method)
Create a unit symbol using
alphanumeric characters.
See the notes below.
Engr LRV
Lower range value
Engr URV
Upper range value
Engr exp
Exponents for user scale display
Engr point
Decimal place for user scale display.
(0, 1, 2, 3 or 4)
The following units are registered.
kPa
MPa
mbar
bar
psi
psia
mmH
2
O
mmHg
mmHgA
mmAq
mmWG
Torr
inH
2
O
inHg
inHgA
ftH
2
O
gf/cm
2
kgf/cm
2
kg/cm
2
G
kg/cm
2
A
atm
kg/h
t/h
m
3
/h
m
3
/min
l/h
l/min
kl/h
kl/min
Nl/h
Nl/min
Nm
3
/h
Nm
3
/min
ACFH
ACFM
SCFH
SCFM
GPH
GPM
m
mm
in
ft
kg/m
3
g/cm
3
If you specify Modify Engr Unit and create your
original unit, note the following when entering the
unit directly.
Up to eight characters can be set using
alphanumeric characters and a slash, but only the
first six characters are displayed. If two or more
slashes or any of the following characters are used,
“-- -- -- -- -- --” is displayed.
# % & < > . * : + - , ’ ( )
7.2.3.8 Display Temperature Unit Setup
When the instrument is shipped, the temperature
units are set to deg C.
To check the display temperature unit, follow the
procedure below.
• Recalling the display temperature unit parameter
(Temp Unit)
Recall
parameters
[Root menu] → Detailed setup →
Sensors → Temp setup →
Temp unit
Select deg C, deg F or K (Kelvin).
Check that °C (deg C) is selected with the Temp
unit parameter.
7.2.3.9 Zero Point Adjustment and Span
Adjustment
The transmitter is adjusted accurately according
to specifications at the factory before shipment,
but minute errors may appear depending on the
installation environment or mounting position. Zero
adjustment and span adjustment are available for
finely adjusting these errors. Zero point adjustment
is a single point adjustment for aligning the low limit
of the measuring range to 0% output. It is used to
correct differential pressure errors caused by the
mounting position of the transmitter body section
or pressure. Span adjustment defines the input/
output characteristics between two points with one
of the two being the zero point reference. This is
used to align the transmitter with customer’s original
pressure standards. It is also used when span drift
is suspected or when a zero condition cannot be
created such as in absolute pressure.
