The
Essentials
Safety, precision, ease, speed, and durability
are the gas detection system essentials required
by health and safety professionals. The streamlined
Sensidyne pump provides these essentials and more.
. .
Single-stroke
operation brings timesaving ease of use to gas
detection.
A slender ergonomically designed, sure-grip
shape; lightweight, and corrosion-resistant.
Piston-type volumetric pump assures accuracy
every time.
Fail-safe handle lock in two positions (50 ml
or 100 ml) which virtually eliminates incomplete
samples that can occur with squeeze-type pumps
when they are not fully collapsed.
Flow finish indicator.
High precision direct reading detector tubes
for nearly 300 substances.
Clear indication of concentration level of the
substance being measured is shown by the length
of the stain on the glass tube. The measurement
is precisely recorded for direct reading on
a single calibration scale.
No laboratory turnaround time, no power requirement,
and no user calibration needed.
Ease and simplicity of use saves training time
(training video available), sampling time, and
provides a more accurate analysis.
A lifetime warranty, thus ensuring years of
dependable, trouble-free operation.
No other system offers the Sensidyne pump's
combination of superior features and benefits.
Principles of Operation
Each detector tube contains a reagent that is
specifically sensitive to a particular vapor
or gas.
These
reagents are on fine-grain silica gel, activated
alumina or other absorbing media (depending
upon application requirements), inside a constant
inner diameter, hermetically sealed glass tube.
Most
Sensidyne detector tubes are the “direct-reading”
type, with calibration markings right on the
tube, so measurements can be made as simply
and precisely as reading a thermometer.
The
actual operation is simple and accurate. Just
snap off both “break away” ends of
a tube in the convenient tube-tip breaker, insert
the tube into the hand held pump, and pull out
the pump handle. And that's it.
As
the handle is pulled (just like a
syringe), a precisely measured volume of ambient
air is drawn inside the tube where it contacts
the reagent.
Instantly,
the reagent changes color. The reagent reacts
quantitatively to provide a length-of-stain
indication. The farther the color stain travels
along the tube, the higher the concentration
of gas. Note the scale mark on the tube where
the stain stops and that's the measurement.
It's
safe, precise and fast. A Single Stroke of Genius.
FEATURES AND BENEFITS
Single Stroke Operation
- The Sensidyne pump is the easiest pump to
use. There are no repetitive operations to
obtain an accurate sample every time. One stroke
is all it takes.
Flow Finish Indicator
- Timing the stroke is not necessary. The Flow
Finish Indicator tells you automatically
when the stroke is complete. It operates from
the pump's internal vacuum for
total reliability.
High Quality Detector Tubes
- Sensidyne's detector tubes are machine made
to the highest factory tolerances. This
assures optimum repeatability from one production
lot to the next at a level that is
unmatched by hand made tubes. Both the factory
site and the U.S. distribution site are
ISO 9000 certified for total confidence in quality.
Accuracy
- Calibration scales for the detector tubes
are printed on the basis of individual
production lots. This eliminates troublesome
variations in tube diameters, packing
precision, and/or reagent quality or reactivity.
Calibration scales are in ppm, mg/l,
or %, depending on the substance to be measured
and the desired measuring range.
Every tube box carries the quality control number
and chemical symbol. The expiration
date is prominently stamped on each box.
Expandable Measuring Range
- The calibration curve on most of the Sensidyne
detector tubes is a straight line, and
points on the scale are at equal intervals.
This means you can measure
concentrations above or below the printed scale
by simply increasing or decreasing
the number of pump strokes, as indicated on
the instruction sheet.
Sensitive and Stable Absorbing Media
- Using our unique absorbing media, the tubes
have extremely clear lines of
demarcation of the color stain. No filter paper
or cumbersome reagents are required.
This enhances reliability, reduces measurement
time and increases accuracy. These
are stable compounds, providing a long shelf
life for most tubes, thus reducing
inventory costs.
Precision Piston Pump
- Two critical factors affecting the accuracy
of detector tube measurements are the flow
rate and the volume of air drawn through the
tube by the pump. If the flow rate
or volume varies, the sample will not be accurate.
- With a precision piston pump, air flow is
initiated by the pump vacuum, which stays
constant after continued use.
- The vacuum is not spring-assisted as with
“squeeze-type” pumps. The suction
of
squeeze-type pumps is determined almost exclusively
by the force of springs
within the pump. Over time the springs can lose
tension, resulting in slow strokes,
thus jeopardizing accuracy and repeatability.
Durable Construction
- Our unique pump design offers the best of
both worlds. It is simple to use and rugged
enough for any industrial setting. The light
weight aluminum alloy construction provides
years of trouble free use.
Standard Tube-Tip Breaker
- A tube-tip breaker, which catches the glass
ends of the detector tube, is standard in
each pump for added safety. Flying glass and
misplaced broken tube tips are not a
problem with the Sensidyne pump.
No Special Tools
- Nontechnical personnel can perform normal
sampling and maintenance rapidly and
accurately. You do not have to purchase any
special tools, and the spare items in the
pump kit are normally all that are required
for years of trouble-free operation.
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FEATURES
Simple operation - all personnel can operate with
ease
On the spot, quick, direct measurement
No calibration - ready for immediate use
No chemical reagents to prepare or calibration
cylinders to purchase and dispose
No power requirement
Very portable and light weight for difficult measurement
situations
Minimal maintenance
Reproducible and accurate
Low cost, economical
Pump
·
Precision, hand operated, piston pump. Constant,
accurate 100 ml volume achieved with
string-less design. Achieves extremely dependable,
consistent and accurate results
·
Locking handle, graduated shaft with red line
indicator for 50 ml and 100 ml volumes
·
Stroke counter for simplified multiple stroke
applications
·
Robust, corrosive resistant, aluminum construction.
Light weight
·
High purity, finely ground material coated with
chemical reagents to provide well defined color
change. Clear end point to make reading concentrations
simple and accurate
·
Outer surface etched with details of detection
gas formula, standard sample volume required,
arrow indicating gas flow and accurate graduated
scale to easily read the gas concentration
·
No special tools needed Simple tube break-off
and disposal system
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