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|
Analyzers
for rent :
Liston Scientific
NDIR Single Gas
Analyzer
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| Model 300 is
designed to measure a single gas. The Model 300 optical bench
consists of the IR source, sample cell, and patent pending
detector. The source control circuit provides a controlled
current square wave to the infrared source. No mechanical
chopper is used so there are no moving parts in the Model 300
optical bench that wear out or require adjustment. Infrared
energy from the source passes through the sample where energy
at specific wavelengths is absorbed by the sample. The closed
sample path eliminates interfering absorption from ambient
air. The energy not absorbed in the sample cell reaches the
detector which is sensitive to the wavelengths attenuated by
the gas of interest. The patent pending Model 300 detector
consists of two chambers in optical series with a very
sensitive transducer to measure the relative energy absorbed
by each chamber. The primary difference between the Model 300
detector and other NDIR detectors is that these two signals
from the primary and secondary chamber are balanced. The
balancing process greatly improves the sensitivity and
selectivity for the gas of interest.
Applications
- Stack gas monitoring
- Continuous emission
monitoring
- Monitoring of: boilers,
incinerators, furnaces
Standard Specifications |
| Analysis
Method |
NDIR
Single Beam |
| Gas
Measured |
User
Selectable |
| Measuring
Range |
User
Selectable |
| Resolution |
0.1%
of Full Scale |
| Repeatability |
0.1%
of Full Scale |
| Noise |
0.1%
of Full Scale |
| Drift |
0.1%
of Full Scale |
| Response
Time |
at
1, 10 or 100 |
| Display |
Vacuum
Florescent, 2 Lines of 16 Alphanumeric Characters |
| Alarms |
High
& Low Limit, User Selectable |
| Analog
Output |
Selectable
0-1, 5, 10Volts, Optional Isolated 4-20mA Loop |
| Analog
Ranges |
4,
Each With Adjustable Full Scale. Selectable Auto Range |
| Front
Panel |
Four
Button Interface, Using Display Menus |
| Voltage |
0-1,
5, 10Volts, Selectable |
| A.C.
Output |
Isolated
Triac Control for Zero & Upscale Gas Values.
Rated Maximum Load: 0.6Amp, 240VAC |
Operating Requirements
| Power |
115/220Vac,
50/60Hz |
| Power
Consumption |
200Watts |
| Sample
Flow |
.2
to 2.0 Liters/Minute |
| Sample
Temperature |
-10
to +50 Degrees C. |
| Dust |
Sample
Should be Dust Free |
| Moisture |
Non-Condensing
(Dew Point Below Outlet Temp. of Analyzer |
| Pressure |
Inlet
Gas not to Exceed 5PSIG |
| Exhaust
Gas |
Non-Restrictive
Outlet Aperture/Hoses |
| Zero
Gas |
Typically
Nitrogen |
| Upscale
Calibration Gas |
Gas
of Interest in Nitrogen |
| Warm
Up Time |
Useable
in 30 Minutes. Optimum Operation in 2 Hours |
| Ambient
Conditions |
Operating
-10 to 50 Degrees C.
Storage -10 to 80 Degrees C. |
| Dimensions |
22"L
x 18"W x 5.25"H |
| Weight |
22LBS |
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