Alpha Moisture Systems SADPmini2-E Instruction Manual page 2

Desiccant Dry Down Technology
The Desiccant Head
Assembly
Keeping the sensor dry between
tests ensures that the SADPmini2-Ex
is always ready to carry out rapid
spot checks. The unique design of
the Desiccant Head achieves this
by surrounding the sensor with
desiccant before the head is raised
for sampling. At no time is the
sensor allowed to come into
contact with ambient air. The
chamber is also designed so that
the void space and chamber wall
surfaces are purged with sample
gas, before exposure of the sensor,
so giving faster, more accurate and
reliable results.
Specifications
INTRINSICALLY SAFE / SÉCURITÉ INTRINSÈQUE Exia
Class I Div 1 Groups A, B, C and D T4
LISTED
-20°C ≤ Ta ≤ +50°C
The unique design allows purging of the gas
in the "Dry-Down Position" which will bring
all surfaces and voids to equilibrium.
The "Head" can then be raised to take a
reading.
Head Down
Sample gas
Sample
Inlet Pipe for
gas
purging and
Exhaust
reading
Dry-down position
© Alpha Moisture Systems Ltd.
Alpha Moisture Systems Model SADPmini2-Ex
Head Raised
Sensor
After display has settled,
take a reading
The desiccant
and sensor are
always isolated
from ambient air
during
measurement.
Sensor exposed
to gas sample
after purging.
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