54
Operating Instructions - CPA2501
Air Data Test Indicator
CPA2501
Sensorid?
<sp>Mensor,SN XXXXXXXX,
VN.NN
Returns the active transducer’s serial
number and firmware version
Span
desired pressure or ?
Sets span on active transducer or for
?, clears previous value, must be >
50% FS and has a 1% limit. CALDIS-
ABLE must be OFF/NO.
Span?
<sp>XXXXXXX<cr><lf>
Returns span scale factor for active
transducer
Sparity
Even, ODD, NONE
Sets the serial parity
Sparity?
<sp>CCCC<cr><lf>
Returns the serial parity
Sstop
1 or 2
Sets the serial stop bits
Sstop?
<sp>X<cr><lf>
Returns the serial stop bits
SUBUNITS?
<sp>XXXX<cr><lf>
Returns the instrument auxiliary dis-
play units in a text string
Tare
ON / OFF
Tares the reading to zero
Tare?
<sp> n.nn <cr><lf>
Returns value of Tare
Transfer_factory_to_lin-
earity
Copy factory linearity coefficients to
customer
Units
units code or text in table below
Sets the instrument engineering units
Units?
<sp>CCCC<cr><lf>
Returns the instrument units in a text
string
Unlock
None
Releases Acquire locks (see: Acquire? )
or (see: Release?)
Window
Value in current units
Sets the exponential filter window for
the active transducer
Window?
<sp>n.nn
<cr><lf>
Returns the exponential filter window
for the active transducer
Zero
desired pressure or ?
Sets zero to set pressure or for ?,
clears previous value. CALDISABLE
must be OFF/NO
Zero?
<sp>n.nn
<cr><lf>
Returns zero offset for active trans-
ducer