FISHER HAMILTON SAFEAIRE series, Руководство по установке, Страница: 19 / 32

SAFEAIRE
®
LABORATORY FUME HOODS
OPERATION, MAINTENANCE AND INSTALLATION INSTRUCTIONS
INSTALLATION
19
Dimensions are nominal and illustrations and specifications are based
on the latest product information available at the time of publication.
The right is reserved to make changes at any time without notice.
FUME HOOD MONITOR
Models 54L0335 and 54L0405
Proper fume hood operation is key to laboratory safety, comfort
and energy management. OSHA requires that laboratories take
measures to ensure proper and adequate operation of fume
hoods. Recommendations include the use of a continuous air
monitoring device. The ANSI Z9.5 and NFPA 45 standards
reinforce these requirements.
Fisher Hamilton monitors have the ability to monitor true fume
hood face velocity using thermal sensors located in the
instrument. The thermal sensors are exposed to clean
laboratory air only. They can be surface-mounted in minutes
eliminating the need for expensive panel cutouts.
Each model is equipped with indicator lights that illuminate
based on a pre-determined set-point. An audible 85dB
piezoelectric alarm sounds and a red indicator light illuminates
to warn of potentially dangerous low air flow conditions.
• 54L0405
– Low flow set point
– Audible and visual alarm
– I/O options
• 54L0335
– Analog meter
– Audible and visual alarm
– I/O control
Fisher Hamilton fume hood monitors are shipped with operation
manuals
EXHAUST FILTER INSTALLATION
Product Numbers 54L296, 54L297, 54L298 and
54L299
The pre-filter cover faces
forward on Restricted
Bypass and Constant
Volume Bypass hoods.
INSTALLATION OF MINIHELIC GAUGE
Replacement filter sets consist of one rough and one HEPA
filter.
Product Number 54L302 – Filter set for 54L296 or 54L298.
Product Number 54L300 – Filter set for 54L297 or 54L299.
Pre-Filter
Cover
Front of
Fume Hood
The pre-filter cover faces to
the left on Auxiliary Air
hoods.
Pre-Filter
Cover
Front of
Fume Hood
Securely attach the filter inlet collar to hood exhaust transition
using same method as followed in the duct system. Filter outlet
may be attached to duct using flexible connector or same as
inlet connection.
Sensor block and sensor tube,
two req’d each
Connect to low side of
Minihelic Gauge
Thick-wall vinyl laboratory
tubing, cut to length
Minihelic Gauge range 0"-3"
W.C., reads filter pressure drop
Front Post
Connect to
high side of
Minihelic Gauge