ZERO-n 
Signal Zeroing Enable 
Syntax: 
ZERO-n 
<state> 
where 
n 
is either 
A 
or 
B 
Parameters: 
The parameter <state> 
is 
a <number> which can be 
0 
or 
1. 
If 
the number is 
0, 
then readings are not adjusted by the stored zero reference. 
If 
the number is 
1, 
then readings are adjusted by the stored zero reference. 
Function: 
This command enables or disables the zeroing feature. Zeroing causes the 
stored zero reference 
(see 
STOZERO-n  command) to be subtracted from 
incoming signal readings before the incoming signal 
is 
used in measurement 
calculations. 
Related Commands:  STOZERO-n,  ZERO-n?,  ZEROVAL-n 
ZERO-n? 
Signal Zeroing Enable Query 
Syntax: 
ZERO-n? 
where 
n 
is either 
A 
or 
B 
Parameters: 
None 
Function: 
This query returns 
a 
value showing whether or not zeroing is enabled or 
disabled. 
Returns:  <state> 
<state> is of type <number> and represents the integer 
0, 
if 
zeroing 
is 
enabled, 
or 
1, 
if  zeroing 
is 
disabled. 
Related Commands:  STOZERO-n,  ZERO-n,  ZEROVAL-n 
ZEROVAL-n? 
Zero Signal Query 
Syntax: 
ZEROVAL-n? 
where n 
is 
either 
A 
or 
B 
Parameters: None 
Function: 
This query returns the current value being used for zeroing. 
Returns:  <zeroval> 
aerovab is of  type <number> in exponential notation.  The units 
of 
this value 
are the numerator of  the detector's responsivity, i.e. amps. 
Related Commands: 
STOZERO-n,  ZERO-n,  ZERO-n? 
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