Labconco Protecto Ech Filtered Fume Hoods 183 Series 8' - Manuel (Page 53)

Chapter 4: Performance Features & Safety Precautions
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Original instructions
26.
Shipped mostly assembled and eliminates the need for costly onsite
assembly. The control panel, sash sensor, and temperature sensor wiring
are pre-assembled for convenience.
27.
Includes a sash position alarm and a velocity alarm should the fan
speed RPM’s be compromised.
28.
Accessory Guardian™ Digital Airflow Monitor or Guardian Airflow
Monitor continuously monitors face velocity. An audio/visual alarm
alerts the user to low airflow conditions. The corner post is factory
prepared to accommodate the Guardian Monitor (sold separately).
29.
Frame of powder-coated steel and aluminum is durable and corrosion
resistant.
30.
Spillstopper™ Solid Epoxy Work Surface is dished to contain spills.
(Work surface is sold separately).
31.
Sound pressure of less than 60 dB(A) at operating height for quiet
operation. Less than 48 dB(A) with sash closed.