Bacharach Snifit 50 Operating Manual
Instruction 19-9201
Rev. 3 – June 1999
®
Snif it Model 50
Carbon Monoxide Analyzer
Introduction
Designed for HVAC professionals and utility personnel, the Snifit Model 50 Analyzer is ideal for measuring low levels of CO in ambient air such as in rooms
and garages, or around registers, furnaces, stoves,
water heaters, and other types of combustion appliances. The Snifit samples the surrounding air and
shows the detected concentration of CO on its Liquid
Crystal Display. The Snifit is not intended to be used in
flue gases or in temperatures exceeding 104 °F (40 °C).
Features
• Measures and displays 0 to 1999 ppm CO in room air
• Sensitive CO sensor will last up to 2 years
• Backlight for viewing in dark areas
• Compact pocket size
• Low battery indication
• Manual zero adjust
• Factory calibrated on 100 ppm CO
• Simple field calibration
• Auto power-off after 35 minutes
• Single 9V battery (included) provides at least
1500 hours of operation
621 Hunt Valley Circle, New Kensington, PA 15068
Ph: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666
Website: www.bacharach-inc.com • E-mail: help@bacharach-inc.com
Printed in U.S.A. ® Registered trademarks
Bacharach, Inc.
Specifications
Gas Monitored ............Carbon Monoxide (CO)
Range ..........................0 to 1999 ppm
Resolution ...................1 ppm
Accuracy......................± (5% of reading + 5 ppm)
Response .....................≤30 sec. to 90% of final value
Power...........................9V battery
Battery Life ................1500 hours minimum
Temperature Range ....32 to 104 °F (0 to 40 °C)
Case Material .............High impact plastic
Weight.........................0.25 lb (0.11 kg) without battery
Dimensions .................5.5" L x 2.0" W x 1.6" H
(140 x 51 x 41 mm)
Operation
Turning the Snifit
On/Off
If not already done,
install a 9V battery as
described under
Battery Installation.
Turn on the instrument by pressing its
Power On button.
ZER O
ADJUST
LO W
BATTE RY
IN D IC A T IO N
BACKLIGH T
ON/OFF
CARBON
S n if it
M O NO XIDE ANALYZER
m odel 50
Span Adjust
LO BAT
-Power-
Backlight
Off
ppm CO
On
SPAN
ADJUST
POT.
DISPLAY
POW ER ON
POW ER OFF
Turn it off by pressing
Power Off (or the
instrument will
automatically shut
itself off after approximately 35 minutes).
Figure 1. Snifit 50
Zeroing the Sensor
Turn on the Snifit and allow the displayed reading to
stabilize before proceeding – approximately 30 seconds. Then with the instrument sampling fresh air
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