Model 400E
UV Absorption O3
Analyzer
The Model 400E UV Absorption Ozone Analyzer is a
microprocessor-controlled analyzer that uses a system based on the
Beer-Lambert law for measuring low ranges of ozone in ambient air.
A 254 nm UV light signal is passed through the sample cell where it is
absorbed in proportion to the amount of ozone present. Every three
seconds, a switching valve alternates measurement between the sample
stream and a sample that has been scrubbed of ozone. The result is a
true, stable ozone measurement.
Multi-tasking software gives real time indication of a large number of
operational parameters, and provides automatic warnings if diagnostic
limits are exceeded. Built-in data acquisition capability, using the
analyzer's internal memory, allows the logging of multiple parameters
including averaged or instantaneous concentration values, calibration
data, and operating parameters such as pressure and flow rate.
Stored data are easily retrieved through the serial port or optional
Ethernet port via our APIcom software or from the front panel, allowing
operators to perform predictive diagnostics and enhanced data analysis
by tracking parameter trends. Multiple averaging periods of one minute
to 365 days are available for over a period of one year.
Features:
- Ranges, 0-100 ppb to 0-10 ppm, user selectable
- Single pass ultraviolet absorption
- Microprocessor controlled for versatility
- Multi-tasking software allows viewing of test variables
during operation
- Continuous self checking with alarms
- Dual bi-directional RS-232 ports for remote operation
(optional RS-485 or Ethernet)
- Digital status outputs provide instrument operating
condition
- Adaptive signal filtering optimizes response time
- Optional Internal Zero/Span check and dual span points
- Temperature & Pressure compensation
- Internal data logging with 1 min to 365 day multiple
averages
- APIcom remote operation software
| Specifications: |
| Ranges: |
0-100 ppb to
0-10 ppm, user selectable; Dual ranges and auto-ranging supported |
| Units: |
ppb, ppm,
µg/m3, mg/m3 |
| Zero noise: |
< 0.3 ppb
(RMS) |
| Span noise: |
< 0.5% of
reading above 100 ppb (RMS) |
| Lower Detectable
Limit (LDL): |
< 0.6 ppb
(RMS) |
| Zero drift: |
< 1.0
ppb/24 hours, < 1.0 ppb/7 days |
| Span drift: |
< 1% of
reading/7 days |
| Lag time: |
< 10
seconds |
| Rise and Fall
Time: |
< 20
seconds to 95% |
IZS
Specifications (with optional reference feedback):
|
| Flow rate |
800 cm3/min |
| Maximum Concentration |
1.0 ppm |
| Minimum Concentration |
0.050 ppm |
| Resolution |
0.5 ppb |
| Repeatability (7 days) |
1% of reading |
| Initial accuracy |
±5% of target |
| Sample Flow Rate: |
800 cm3/min
±10% |
| Operating
Temperature Range: |
5 - 40°
C (with EPA equivalency) |
| Dimensions
(HxWxD): |
7”
(178 mm) x 17” (432 mm) x 23.5” (597 mm) |
| Weight: |
28 lbs (12.7
kg); 30.6 lbs (13.8kg) with IZS |
| Power: |
110V - 120V,
220V - 240V, 50/60 Hz, 250W |
| Analog outputs: |
10V, 5V, 1V,
0.1V, selectable |
| Recorder Offset: |
±10% |
| Serial Outputs: |
Serial Port 1:
RS-232 (DB-9M)
Serial Port 2: standard RS-232 or optional RS-485 (DB-9F), Ethernet |
| Status (Digital): |
8 outputs, 6
inputs (opto-isolated) |
| Current Output: |
Optional 4-20mA,
select up to three channels |
| Approvals: |
USEPA
EQOA-0992-087, MCERTS certified Sira MC050070/00 |
|
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