Esco Class II User Manual

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5.4.5. Airflow Sensor Replacement Procedure
5.4.5.1. Airflow Sensor Replacement Procedure where Doughnut Sensor Housing is Used
Similar to the sensor box case, in AC2-_E_, AC2-_S_, AC2-_D_ and AC2-_G_, the airflow sensor is located on
top of the cabinet. The sensor can easily be accessed in these cabinets.
1. Start by removing the damper (unscrew) on top of the cabinet (for AC2-_E_ & AC2-_S_; damper not
applicable for AC2-_D_ and AC2-_G_).
Figure 5.6. Unscrewing the Damper
2. Lift the damper to locate the airflow sensor.
Figure 5.7. Lifting & Removing the Damper
3. Disconnect the airflow sensor cable connector.
Figure 5.8. Disconnecting Airflow sensor Cable

Esco Class II Specifications

General

Lighting	LED
UV Light	Optional
Certification	NSF/ANSI 49, EN 12469
Airflow Pattern	Laminar
Inflow Velocity	0.38 m/s ± 20%
Downflow Velocity	0.25 m/s ± 20%
HEPA Filter Efficiency	99.99% at 0.3 μm
Material	Stainless steel
Noise Level	< 65 dBA
Front Opening	200 mm (8")
Application	Microbiology, cell culture
Type	Biosafety Cabinet