Model 360EM
Gas Filter Correlation CO2
Analyzer
The Model 360EM measures carbon dioxide CO2 by
comparing infrared
energy absorbed by a sample to that absorbed by a reference according
to the Beer-Lambert
law. This is accomplished by using a Gas Filter Wheel which alternately
allows a high energy infrared light source to pass through a CO2
filled
chamber and a chamber with no CO2 present.
The light then travels through the sample cell, which has a folded
path. The energy loss through the sample cell is compared with the zero
reference signal
provided by the gas filter to produce an output proportional to
concentration, with little effect from interfering gases within the
sample.
This design produces superior zero and span stability and a high
signal-to-noise ratio, allowing excellent sensitivity. Multi-tasking
software gives real time indication of numerous operating parameters
and provides automatic alarms if diagnostic limits are exceeded.
Built-in data acquisition and internal memory allows logging multiple
parameters including average and instantaneous values, calibration
data, and operating
parameters. Stored data can be retrieved via the RS-232 port, ethernet,
or from the front panel.
The Model 360EM features rugged construction and is designed to perform
with a minimum of attention. Regular maintenance is greatly simplified
through the use
of modularization construction.
Features:
- Ranges, 0-4 ppm to 0-4000 ppm, user selectable
- Gas Filter Wheel for CO2 specific
measurement
- GFC wheel guaranteed for 5 years
- Multi-tasking software allows viewing of test variables
during operation
- Continuous self checking with alarms
- Bi-directional RS-232 / RS-485 / Ethernet
- Digital status outputs indicate instrument operating
condition
- Adaptive signal filtering optimizes response time
- Temperature & Pressure compensation
- Internal data logging with 1 min to 24 hour averages
- APIcom remote operation software
| Specifications: |
| Ranges: |
0-4 ppm to
0-4000 ppm full scale, user selectable |
| Units: |
Dual,
independent, and auto ranging supported ppb, ppm, µg/m3, mg/m3 |
| Zero noise: |
< 0.02 ppm |
| Span noise: |
< 1.0% of
reading above 20 ppm (RMS) |
| Lower Detectable
Limit (LDL): |
0.4 ppm |
| Zero drift: |
< 1.0
ppm/24 hours, < 2 ppm/7 days |
| Span drift: |
< 0.5%
of reading/24 hours, < 1% of reading/7 days |
| Lag time: |
10 seconds |
| Rise and Fall
Time: |
< 60
seconds to 95% |
| Linearity: |
1% of full scale |
| Precision: |
0.5% of reading |
| Sample Flow Rate: |
800 scc/min
±1 0% |
| Operating
Temperature Range: |
5 - 40° C |
| Dimensions
(HxWxD): |
7”
(178 mm) x 17” (432 mm) x 23.5” (597 mm) |
| Weight: |
40 lbs (24 kg) |
| Power: |
100V 50/60 Hz,
115V 60 Hz, 220V 50/60 Hz, 230V 50 Hz, 240V 50 Hz, 250W |
| Analog outputs: |
10V, 5V, 1V,
0.1V, selectable |
| Recorder Offset: |
±10% |
| Serial Outputs: |
RS-232 and
RS-232, RS-485, or Ethernet |
| Status (Digital): |
8 outputs, 6
inputs (opto-isolated) |
| Current Output: |
Optional 4-20mA,
select up to three channels |
|
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