WIKA CPG2500 - Manual (Page 51)

Mensor/WIKA Operating Instructions Series CPG 2500 51
Digital Pressure Gauge
SERIES CPG 2500
SPAN SPAN sp lf Use the SPAN command to correct the pressure
reading at FS. This command first requires the
PW password to be issued. Send the true pres-
sure value while maintaining at least 50% of the
FS pressure on the pressure port. (Refer to the
Maintenance and Calibration sections for details
on calibrating an instrument.)
Where is true pressure value in current
engineering units.
SPAN? SPAN? lf The SPAN query will return the span correction
scale factor. Returns where
is a multiplication factor from 0.90000 to
1.10000.
TARE TARE sp lf TARE sets the tare offset in the current engineering
units. Either the PWT or the PW password must
be sent before the first occurrence of the TARE
command. Where is a value between +/-
7.0000 psi.
TARE? TARE?lf Returns the current tare calibration variable.
Returns where is the
current TARE offset in the current units.
TYPE? type?lf Returns the type of pressure sensor in the instru-
ment:
ABSOLUTE PRESSURE for an absolute
sensor,
or: GAUGE PRESSURE for a gauge pres-
sure sensor.
UNITS UNITS sp lf This command selects the engineering units to be
output on the bus and the display for all subse-
quent pressure readings.
Where is a one or two digit units code
number from the ‘n’ column of Table 7.1.3.6.
UNITS? units?lf This query returns the units code and the ASCII
string for the units as
where is: the units code from column “n”
(see Table 7.1.3.6) and where is the corre-
sponding ascii string listed under ‘Output Format.