Model 454
Process Ozone Monitor
The Model 454 Series are microprocessorbased gas sensors for measuring
mid to high concentrations of ozone in oxygen or air.
Available in a standard DIN panel mount or a NEMA 4X configuration with
a highly visible 4-digit LED display, their compact design provides
ease of mounting and installation.
Model 454 Series analyzers are available in full scale ranges from 1000
ppm to 0-20% weight, and are factory calibrated in accordance with
International Ozone Association standards.
The measurement principle is based on the absorption of UV light at
254nm. As the sample containing ozone flows through the absorption cell
it is exposed to UV light at the 254nm wavelength. The amount of
absorption by ozone is measured by a narrow bandwidth UV detector.
A reference detector measures the lamp output to compensate for changes
in light intensity. This method, using a narrow spectrum UV source and
a narrow bandwidth detector provides excellent performance and
stability without requiring additional UV filters.
The Model 454 Series’ temperature and pressure compensation
normalizes
readings to weight/volume. A front panel keypad displays concentration
or cell pressure, while LEDs indicate monitoring status.
The Model 454 Series employs state-of-the-art microprocessor design to
provide accurate, dependable monitoring of the ozone process.
Features:
- Ranges from 0 - 1000 ppmv to 0 - 20% w/w
- Available in standard DIN panel mount or NEMA 4X (IP-65)
- High visibility, 4-digit display
- Temperature and Pressure Compensation
- Units in ppmv, weight % or grams/Normal m3
- Narrow Bandwidth detector eliminates need for UV filters
- Analog and RS232/485 outputs
- Status LEDs to monitor performance
- Auto zero (NEMA 4X only)
- Internal pump (mid-level units only)
- 316 stainless steel cell
- Optional sample drier
| Specifications: |
| Ranges: |
0-1000 ppmv,
0-5000 ppmv, 0-10,000 ppmv
0 - 5, 0 - 10, 0 - 15, 0 - 20% w/w;
0 - 25, 0 - 100, 200, 300, 400 g/Nm3 |
| Pressure and
temperature compensation: |
Standard |
| Inlet pressure: |
3 to 30 psig |
| Proof pressure: |
100 psia |
| Repeatability: |
0.5% of full
scale |
| Response time: |
<30
seconds to 95% |
| Zero drift: |
1% Full
Scale/month (non-cumulative) |
| Operating
temperature range: |
5 - 45° C |
| Wetted materials: |
316 Stainless
Steel, PTFE, Sapphire, AlO3 |
| Fittings: |
1/4" stainless
steel |
| Flow: |
0.5 to 2.0 LPM |
| Power: |
90-265 VAC,
50/60 Hz |
| Display: |
4 digit LED
readout |
| Analog output: |
0 – 5V
Full Scale; 4-20mA or 0-20mA isolated outputs optional |
| Zero calibration: |
Front panel
keypad, contact closure input, or auto zero (NEMA only) |
| Digital Outputs: |
Sensor OK, Lamp
Low, Cell Dirty, Invalid Reading, (Opto-isolated) |
| Serial data
Interface: |
RS485 or RS232 |
| Dimensions
(HxWxD): |
DIN High Level:
3.83” (97 mm) x 7.61” (193 mm) x 7.63”
(194 mm)
NEMA 4X High Level: 12.64” (321 mm) x 11.19” (284
mm) x 6.08” (154 mm)
NEMA 4X Mid Level: 16.5” (419 mm) x 15.3” (389 mm)
x 8.45” (214 mm) |
| Weight: |
DIN High Level:
4.0 lbs. (1.8 kg)
NEMA 4X High Level: 9.4 lbs. (4.27 kg)
NEMA 4X Mid Level: 16.0 lbs. (7.28 kg) |
|
|
