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New Research Directions
In the past, low pressures and very small changes in pressure have been difficult
to measure accurately because of insuffi-cient transducer sensitivity coupled
with inadequate resolution of the data re-corded by analog devices. It was
often infeasible to quantify such potentially meaningful measurements.
Now, a modern ultra-low-volume transducer with displacement of only 0.023
nanoliters per mmHg can be provided, permitting low-noise measurements even
in small animals such as mice and young rats which are often the preferred
models of human disease.
Advanced Technology
The Digi-Med LPA's fast sampling rate and display of analyzed parameters every
1/2 second give you precise data resolution for superior research results.
In addition, other systems, whether they have been "digitized" or still consist
of analog stripchart recorders, require extensive labor-intensive steps to
analyze the raw data. The Digi-Med LPA provides variables of low pressure
and time instantaneously and automatically.
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Specifications
Dimensions: 5.75 in high, 10 in wide, 9.5 in deep, incl. cable clearance.
Weighs under 9 lb.
Pressure Range: -50 to 150 mmHg .
Frequency Response: 45 cycles/sec after amplification of microvoltages
from transducer, followed by microprocessor sampling at 1,000 points/sec and
front panel display at half-sec intervals.
Balance & calibration: Push-button with analyzer retention of factors
even when turned off and unplugged.
Warranty: One-year limited warranty.
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Options
Transducer Package: TXD-310 fixed- dome transducer, holder and 13-ft
exten-sion cable with excitation from analyzer at +2.5 volts DC and ultra-low
compli-ance of 0.023 nanoliters per mmHg.
Cardiovascular System Integrator: Software, plug-in board and cables to
link one or more LPAs with other analyzers in a computerized multi-channel system.
Analog Output Package: Internal circuitry and 10-ft shielded cable to
output instantaneous pressure as an analog 0-to-10 volt signal to an analog
recorder or CRT oscilloscope.
Printer: 80-column thermal printer and cable.
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