LumaSense Technologies INNOVA 1303 User Manual

Page 37

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Chapter 3
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BE1085-14

1303 Multipoint Sampler and Doser

LumaSense Technologies A/S

Page 37 of 60

system is higher than 125kPa. The pump operates for one minute, then

stops for one minute, then operates for one minute, and so on.

Example:

DOSING_PUMP AUTO<LF> Runs the carrier-air pump for one

minute, at one minute intervals,

whenever the pressure in the
1303’s doser system rises above

125kPa.

3.6.4

Starting Discontinuous Dosing

This interface job starts a flow of tracer-gas which is interrupted at
regular intervals during a given total dosing time – see

Fig.3.3

. The dis-

continuous dosing job comprises four data elements: the dosing valve
number; the total dosing time; the discontinuous dosing period-length;

and the dosing valve opening period, see

section 4.2.3

.

Fig.3.3. Representation of the 1303’s discontinuous dosing function

Example:

DIS_DOSING 1,20,5,3<LF> Starts a discontinuous dosing pro-

cedure through dosing valve num-
ber 1 for a total time of 20s. The

discontinuous dosing period-length
is 5s, during which the dosing valve

is open for 3s.

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