Thermo Scientific 1300 Series, Руководство пользователя

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Inflow Area:
• 1.2 m models 1344/1374: Front opening 0.3 m 2
• 1.8 m models 1349/1379: Front opening 0.45 m 2
Calculation:
• Inflow Velocity (V1) = Inflow Air Volume (V2)/Actual Inflow Area (A2)
Acceptance:
• 0.5 m/s, ±0.025 m/s
Correction measures:
• Enter the service level and activate S2, change S2 until the desired
velocity is reached and save the new value.
• If the velocity can't be adjusted due to clogging of the filters, change the
exhaust filter.
• If the filter is in order, change the exhaust blower.
Note Check of alarm limits: If S1 or S2 are changed, the alarm limits S3
and S4 must be checked and saved again.
s
Inflow Velocity – Constricted Window Method (Secondary)
Description:
• Inflow velocity measured over several points through a constricted
window.
Equipment:
• Thermal Anemometer, or equivalent (hotwire)
• Anemometer Probe Holder
8-6 1300 Series A2 Thermo Scientific
Section 8
Certification Testing
Testing Information
(continued)