Household Range Hood Performance Testing Equipment 1500Pa For Air
Duct
Overview:
This device is suitable for household and similar use hood,
ventilation fan air volume performance
test. In line with GB / T 1236 "industrial fan with a standardized
duct for performance testing," the
test requirements, but also in line with ISO 5801, JIS B8330, JIS
C9603 and other standards.
● Test principle:
According to hydrodynamic Bernoulli principle, the flow through the
nozzle pressure difference
before and after the calculation of air velocity, air velocity
multiplied by the cross-sectional area of
the nozzle can be obtained air volume. In the experiment, the
auxiliary air blower and the adjusting
baffle were used to change the air flow to measure the static
pressure under each air flow. Finally,
the air performance curve of the hood or fan was obtained through
the computer data processing.
● Performance and features
① multi-nozzle air chamber device type structure. According to the
measured flow to select the
corresponding nozzle, so a device can measure a wide flow range.
② exhaust and inspiratory test dual purpose.
③ equipped with auxiliary fan, it can measure the zero flow and
static pressure to zero the full
range of performance curves.
④ configuration of imported high-precision pressure sensor, the
test results accurate and
reliable.
⑤ by the computer and its peripheral equipment to achieve automatic
test, calculation and data
output, graphics display test results. Man-machine dialogue is
simple, high precision, saving time
and effort.
⑥ Test items: automatic or manual P-Q characteristics (the
relationship between flow and static
pressure), Q-W characteristics (the relationship between flow and
power),
Q-η characteristic (the relationship between flow and efficiency)
and simultaneous measurement
of the measured object current, power.
⑦ The device is suitable for ventilation fans, air conditioning
fans, cooling fans, range hoods and
other performance tests.
● technical indicators
① air volume measurement range 0.1-50m ³ / min;
② static pressure measurement range 0-1500Pa;
③ air flow measurement error ± 1% (the maximum air flow when the
nozzle).
