Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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8. Testing
After installation or change of location and before the initial start-up
According to the standard EN 12469 and DIN 12980 (Mars PRO, only),
the following must be tested:
Check that manufacturers specifications are met
Leakage test of the pre-, main and exhaust air filter.
Air inlet speed in the work opening.
Check air flow patterns.
Optionally a KI-Discus test for testing operator protection in situ.
All tests have to be done by authorized test technician approved by ScanLaf.
The test results must be entered in a test book.
8.1 Air velocity in laminar flow
Equipment:
The down flow is measured with a calibrated thermo-anemometer.
Procedure:
Turn on the cabinet and wait until the airflow has been stabilized.
The thermo-anemometer is placed in the measuring spot in a height 75 mm (50-100) over the upper
edge of the front opening.
The measuring spots on the tabletop are for Mars-Mars Pro: Min 4 in a line evenly divided 125 mm
from the back wall and 4 in another line 200 mm from the front window.
Each point is to be measured in at least 1 min and the value is to be recorded.
Calculate the mean value; record it as well as the maximum and minimum airflow.
Acceptance:
Mean downflow. 0.30 m/sec.
Distribution: All velocities between mean ±20 % m/sec.
The fan speed settings are to be recorded.
Alarms:
The alarms for high and low downflow are set to the mean: min. 0.25 m/sec and max. 0.35 m/sec and
the matching alarm level settings are to be recorded.
