DUCT LEAKAGE TESTER
Manual – V5.31-ES20160714
5
SWEMA AB
Pepparvägen 27
SE-123 56 Farsta, SWEDEN
Tel: +46 (0)8 940090
www.swema.se
www.swema.com
MEASUREMENT
1.
Select in Swema 3000md, the external pressure sensor. The letters
“INT.” are shown on the
left at the lower part of the display. It is also possible to measure with the internal pressure
sensor, but then the pressure hoses (silicone hoses) must be changed, and the letters
“EXT.”
are shown instead.
2.
Before measuring starts, both differential pressure sensors must be zeroed. Press
“INT.” to
access the built-in pressure sensor in Swema 3000md, and press ZERO. Afterwards, press
“EXT.” to return to the externally connected pressure sensor and ZERO it.
3.
In measuring mode the display shows 4 measuring parameters. The largest digits at the top
show the leakage flow (l/s, m
3
/h, l/sm
2
or m
3
/hm
2
), below the leakage flow, the pressure drop
over the orifice plate in the flange used to calculate the leakage flow. The two pressures
shown below the pressure drop, and with small digits, are the expected pressure value at the
left and the read value (actual value) of the measured pressure to the right (See picture 3).
4.
Press the arrow keys UP/DOWN to adjust the value of the pressure to be measured, wait until
Swema 3000md is stabilized at the read value (true value) of the pressure. (See picture 3).
5.
Measure by pressing the ENTER button.
