LumaSense Technologies INNOVA 1303 - Manual (Page 10)

Chapter 1
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BE1085-14
1303 Multipoint Sampler and Doser LumaSense Technologies A/S
Page 10 of 60
The carrier-air inlet pumps extra air to the dosing outlets to speed de-
livery of the tracer-gas to the dosing point. This inlet has a coarse air-
filter, a pump, and a pressure transducer for checking the efficiency of
the pump. Delivering a dose of tracer-gas to a dosing point 50m distant
takes 1 minute.
The dosing system can deliver a continuous dose, that is, an uninter-
rupted flow of tracer-gas over a period of time; or a discontinuous
dose, in which the amount of tracer-gas delivered is reduced by inter-
rupting the flow at regular intervals during the dosing period.
The doser system is set up for use by specifying a dosing time-out such
that the 1303 will stop any current dosing procedure after a given time
has elapsed without instruction from the controlling computer. This val-
ue is specified form the controlling computer.
1.1.3 Front Panel
Fig.1.2 The front panel of the 1303
Doser: 6 mounting stubs for connection of tubing (AF0005, red)
to dosing points. Each stub is numbered, and has a cor-
respondingly-numbered lamp. When the lamp is lit, it
indicates that the corresponding dosing valve is open,
see section 3.6.3 . When the Main Valve Open lamp is
lit, it indicates that the main dosing valve is open, see
section 3.6.2 .
Sampler: 6 mounting stubs for connection of tubing (AF0006,
green) to sampling points. Each stub is numbered, and
has a correspondingly-numbered lamp. When the lamp