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1） After testing start for about 8s with stably measuring , output displaying the test data for the first time.
2） Go on the testing with frequency of 1s for data updating.
3） The continuously outputting is as the average data and be related with the "Damp Per."set by user.
More larger of the value of "Damp Per." will get more stable of the testing data.
4） If the storage period "Cycle Per." is not 0, the data will be stored according to the time set by "Cycle
Per.", and the "Cycle" will increase automatically.
5） Press "STOP", testing stop.
6） Same testing method with the capture hood when using the Velocity Grid、Pitot、Micromanometer.
5.1.3 Back Pressure Compensation Measurement Mode
In order to reduce the measure error of the pressure loss, which causing from the hood to the
system and get the more real air flow,
flow is more than 1500 m
1）Ready for testing
6）Testing
START
we suggest testing under the Back Pressure Mode when air
3
/h.
START
2）Testing
START
5）Measure again
15
3）
Back-pressure On promoting
4）fix back pressure plate
7） Testing ending， remove back
pressure plate
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