LumaSense Technologies INNOVA 1303 - Manual (Page 29)

Chapter 3
________________________________________________________________________
_______________________________________________________________________
BE1085-14
1303 Multipoint Sampler and Doser LumaSense Technologies A/S
Page 29 of 60
Generally, numerical data output from the 1303 is in NR2 form unless
specifically stated otherwise in the interface job overview given in sec-
tion 4.2 . The default terminator character used is the control character
“<LF>”. The terminator character can be changed, as described in sec-
tion 3.2.1 .
Re-usable Jobs
The 1303 interface jobs Calibration_Data?, Dosing_Time_Out?, Molec-
ular_Weight? and Gas_Constant? are re-usable jobs; that is, when the
data requested by this job is read-out from the 1303, the same job can
be sent back to the system controller so that a different value for this
parameter can be read-in to the 1303. For example:
CALIBRATION_DATA? 1<LF>
Is sent to the 1303. The 1303 reads-out the calibration data for dosing
nozzle 1, with the minimum code for the job header, as follows:
C_D 1,37,45
The job can then be sent again to return the data to the 1303.
To enable the 1303 to respond to the jobs listed above with a job
header, use the Output_Header Inclusive as follows:
OUTPUT_HEADER INCLUSIVE<LF>
This is disabled using the following job:
OUTPUT_HEADER EXCLUSIVE<LF>
3.3 Installing Set-up Parameters
The 1303 stores in its memory 3 set-up parameters. These are the dos-
ing time-out, the gas constant and the calibration data. Each parameter
is dealt with in turn below. The dosing time-out has a default value of
60 s. The gas constant must be installed into the 1303 before calibrat-
ing the 1303’s doser system. The calibration data must be installed be-
fore using the doser system of the 1303 – see section 3.4 .
Note: after switching-off, the 1303 will revert to the default values for
each parameter. It is recommended that you read-out and note down
the current set-up parameters for future reference in the event of loss
of set-up data from the 1303. The procedure for reading-out the set-up
parameters is described in the following sections. The values for each
parameter can then be re-inserted using the jobs described in the fol-
lowing text.