WIKA CPG2500 - Manual (Page 51)

Mensor/WIKA Operating Instructions Series CPG 2500 51
Digital Pressure Gauge
SERIES CPG 2500
SPAN SPAN sp <value> 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 <value> is true pressure value in current
engineering units.
SPAN? SPAN? lf The SPAN query will return the span correction
scale factor. Returns <value><cr><lf> where
<value> is a multiplication factor from 0.90000 to
1.10000.
TARE TARE sp <value> 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 <value> is a value between +/-
7.0000 psi.
TARE? TARE?lf Returns the current tare calibration variable.
Returns <value><cr><lf> where <value> is the
current TARE offset in the current units.
TYPE? type?lf Returns the type of pressure sensor in the instru-
ment:
ABSOLUTE PRESSURE<cr><lf> for an absolute
sensor,
or: GAUGE PRESSURE<cr><lf> for a gauge pres-
sure sensor.
UNITS UNITS sp<value> lf This command selects the engineering units to be
output on the bus and the display for all subse-
quent pressure readings.
Where <value> 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 <value><text><cr><lf>
where <value> is: the units code from column “n”
(see Table 7.1.3.6) and where <text> is the corre-
sponding ascii string listed under ‘Output Format.