DSM- Dual TM
Features:
- Small, portable and dedicated cell density
instrument
- Instrument is powered by a rechargeable battery
- Simple one button operation for functions
- USB port allows easy data collection or printing
results
- Fully built-in controls and software requiring
no computer for operation
Technical Information:
The DSM-Dual TM instrument is a cell density meter
that is portable, light weight, easy to use and battery powered. The device
functions as a cell density meter for measurement of E. Coli, yeast cells and
other biological agents in suspension at the 600 nm wavelength of light.
The instrument has the functions of % transmission (% T),
logarithmic transmission absorption (Abs) and also provides an intervalometer
for time-lapse recording. The instrument is sized to permit it to be used in
smaller spaces, used in incubation chambers, anaerobic compartments or other
environmentally controlled areas.
A LED provides 600 nm light that is focused to the sample to
obtain the readings. A simple touch panel provides all the function buttons.
The control panel with the user buttons is constructed of glass for easy wipe
down and spill clean-up.
A USB 2.0 port is provided to connect to a PC. The PC connection provides a method to input the instruments data
collected for further analysis. A fully recharged battery assembly will provide
30 hours of operation free of AC power. The recharge time is 1-2 hours when the
instrument is turned off.
Cleaning the instrument can be accomplished using common
laboratory agents like de-ionized water, ethanol, or sterilized with
formaldehyde or ethylene. Organic solvents like acetone should not be used as
it may degrade the sample sites.
The DSM-Dual TM comes preconfigured to provide testing
using extremely small drop 20 ul samples or using a standard 10 mm cuvette.
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Technical Specifications
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Center Wavelength CWL (nm)
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600 nm
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Full Width-Half Max. FWHM (nm)
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10 nm
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Range
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Optical density
-0.3 to 1.99 A
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Accuracy
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± 0.05 A at 1 A
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Repeatability
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± 0.02 A at 1
A
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Micro-Volume Pedestal
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As low as 20
micro liter
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Cuvette Holder
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Accepts
10 mm path length semi-micro and macro cuvettes or 14-17 mm
round tubes, fixed with drain channel
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Memory
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USB 2.0
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Display
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1000
readings
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Power Requirements
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240 x 160 graphic
LCD
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Approximate Dimensions
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Internal
rechargeable NiMH battery or universal external power supply (wide range
110-220 V)
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Weight
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194 × 84 ×
173 mm (W × H × D)
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Safety Certifications
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0.8 kg
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