2
SAFEAIRE
®
LABORATORY FUME HOODS
OPERATION, MAINTENANCE AND INSTALLATION INSTRUCTIONS
GENERAL INFORMATION
Fisher Hamilton is pleased to have had the privilege of
furnishing your laboratory equipment. This is a major
investment, and your equipment is built to withstand extremes
of temperature, stress and corrosion provided you give it
reasonable care and use.
This manual gives you full information for the operation and
care of fume hoods and other Fisher Hamilton equipment
items.
Utility and fine appearance can be assured for many years by
following simple procedures. A regular schedule of
maintenance will be most effective.
If you have a special problem or would like extra copies of this
manual, write to the Technical Service Department, Fisher
Hamilton, Two Rivers, Wisconsin 54241.
Table of Contents
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Perchloric Acid Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hood Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–19
Fume Hood Superstructures . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Floor-Mounted Fume Hoods . . . . . . . . . . . . . . . . . . . . . . . . . 5–9
HOPEC IV Fume Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . 10–11
Air Chamber, Auxiliary Air Fume Hoods . . . . . . . . . . . . . . . . . 11
Baffles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–13
Safety Shields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–15
Blower Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16–18
Fume Hood Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Exhaust Filter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Minihelic Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
WARNING/OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . 20
MAINTENANCE AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . 21–27
General Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fume Hood Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
How to Replace Fluorescent Light Tube . . . . . . . . . . . . . . . 21-22
Servicing Fume Hood Fixtures . . . . . . . . . . . . . . . . . . . . . . . . 22
Cleaning Fume Hood Interiors . . . . . . . . . . . . . . . . . . . . . . . . 22
Replacing Sash Glass and Cables . . . . . . . . . . . . . . . . . . 23–25
Servicing Supply Chamber Air Filter . . . . . . . . . . . . . . . . . . . . 26
Exhaust Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Blower RPM Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Manometer, Monitoring Exhaust Filters . . . . . . . . . . . . . . . . . . 27
FIELD TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28–30
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
GENERAL
Fume hoods are exposed to extremes of temperature, reagent
fumes and working surface abuse. Regular care will prolong
service life and insure safe working conditions.
The exhaust system and blower of a fume hood must function
properly for safety. Maintenance personnel should service the
fan and motor assembly regularly, lubricate as required, and
make sure that the exhaust system is free from obstructions.
Semiannually, accumulated deposits should be removed from
the impeller blade and housing.
A simple test with lighted match or smoke will show if the air is
being drawn into the hood. More accurate checks of air velocity
can be made with a thermal anemometer. See Inspection and
Field Evaluation procedure.
Always place equipment and apparatus as far back into the
fume hood as possible since this provides greater assurance of
proper fume collection and removal.
Large, bulky apparatus or equipment should be placed in the
fume hood to permit air flow around it, and never placed so as
to interfere with the operation of the baffle system. Raise large
items an inch or two above work surface. Spilled liquids, acids,
or corrosive materials should be immediately wiped up and the
surface neutralized with water or the proper neutralizing agent
so as to prevent damage to the work surface and the hood
interior or to apparatus and equipment installed in the hood.
Remember that special fume hoods are required for the
handling of Perchloric Acid. See next page.
Summary of Contents for SAFEAIRE series
Page 1: ......