Which ozone monitor should I purchase?
The following table compares the specifications of the various 2B Tech Ozone Monitors and is meant to be helpful for deciding which Ozone Monitor is best for your application. The table is followed by a discussion of the suitability of the different models to various applications. If you have questions or need help with selecting the Ozone Monitor best suited to your needs, please do not hesitate to contact us.
Specification |
Model |
|
|
|
|
|
| Measurement Principle |
UV Absorbance |
UV Absorbance |
UV Absorbance |
UV Absorbance |
UV Absorbance |
| Linear Dynamic Range |
0-250 ppm |
0-250 ppm |
0-100 ppm |
0-1000 ppm |
0-20 wt% |
| Resolution |
0.1 ppb |
0.1 ppb |
0.1 ppb |
0.01 ppm |
0.01 wt% |
| Precision (1σ for 10-s average; aka rms noise) |
|
1.0 ppb or
2% of Reading |
2.0 ppb or
2% of Reading |
0.01 ppm or
2% or reading
|
0.01 wt% or 2 % of reading
|
| Accuracy |
|
1.0 ppb or
2% of Reading |
2.0 ppb or
2% of Reading |
0.01 ppm or
2% or reading
|
0.01 wt% or 2 % of reading
|
| Calibration |
NIST Traceable |
|
|
|
Iodometric Titration |
| Limit of Detection (2σ) |
3.0 ppb |
2.0 ppb |
4.0 ppb |
0.02 ppm |
0.02 wt% |
| Flow Rate (nominal) |
1 L/min |
1.8 L/min |
1 L/min |
1 L/min |
1 L/min |
| Flow Rate Requirement |
>0.6 L/min |
>1.2 L |
>0.6 L/min |
>0.6 L/min |
>0.6 L/min |
| Baseline Drift |
|
<1 ppb/day
<3 ppb/year |
<3 ppb/day
<6 ppb/year |
<0.01 ppm/day
<0.03 ppm/year |
<0.02%/day
<0.1%/year |
| Sensitivity Drift |
<1%/day
<3%/year |
<1%/day
<3%/year |
<1%/day
<3%/year |
<1%/day
<3%/year |
<1%/day
<3%/year
|
| Measurement Time, Frequency |
10 s, 0.1 Hz |
2 s, 0.5 Hz |
10 s, 0.1 Hz |
10 s, 0.1 Hz |
10 s, 0.1 Hz |
| Response Time, 100% of Step Change |
20 s
2 points |
4 s
2 points |
20 s
2 points |
20 s
2 points |
20 s
2 points |
| Averaging Times |
10 s, 1 min, 5 min, 1 hr |
2 s, 10 s, 1 min,
5 min, 1 hr |
10 s, 1 min,
5 min, 1 hr |
10 s, 1 min,
5 min, 1 hr |
10 s, 1 min,
5 min, 1 hr |
| Ozone Units |
ppb, ppm, pphm, µg m-3, mg m-3 |
ppb, ppm, pphm, µg m-3, mg m-3 |
ppb, ppm, pphm, µg m-3, mg m-3 |
ppb, ppm, pphm, µg m-3, mg m-3 |
ppm, pphm,
µg m-3, mg m-3,
mol %, wt %
|
| Pressure Units |
mbar, torr |
mbar, torr |
mbar, torr |
mbar, torr |
mbar, torr |
| Temperature Units |
°C, K |
°C, K |
°C, K |
°C, K |
°C, K |
T and P Corrected |
Yes |
Yes |
Yes |
Yes |
Yes |
| Operating Temperature Range |
0 to 50 °C;
-20 to 50 °C with low T Mods |
0 to 50 °C;
-20 to 50 °C with low T Mods |
0 to 50 °C |
0 to 50 °C |
0 to 50 °C |
| Operating Altitude |
~0-30 km |
~0-30 km |
~0-30 km |
~0-5 km |
~0-5 km |
Power Requirement;
Supplied by battery or 110/220 VAC Power Pack |
12 V dc, 335 mA, 4 watt |
12 V dc, 415
mA, 5.0 watt
|
12 V dc, 290
mA, 3.5 watt |
12 V dc, 290
mA, 3.5 watt |
12 V dc, 290
mA, 3.5 watt |
| Size |
3.5 x 8.5 x 11 in 9 x 21 x 29 cm |
3.5 x 8.5 x 11 in 9 x 21 x 29 cm |
4 x 7.8 x 8.5 in
10 x 20 x 22 cm |
4 x 7.8 x 8.5 in
10 x 20 x 22 cm |
4 x 7.8 x 8.5 in
10 x 20 x 22 cm |
| Weight |
4.7 lb (2.1 kg) |
4.7 lb (2.1 kg) |
4.3 lb (2.0 kg) |
4.3 lb (2.0 kg) |
4.3 lb (2.0 kg) |
| Data Logger Capacity |
14,336 lines |
14,336 lines |
14,336 lines |
14,336 lines |
14,336 lines |
| Analog Inputs for Internal Logging of Other Instruments, 0-2.5 V |
3 Inputs |
3 Inputs |
No |
No |
No |
| Serial Output, RS232 |
Yes |
Yes |
Yes |
Yes |
Yes |
| USB Output |
External Adapter |
External Adapter |
Yes |
Yes |
Yes |
| Data Transfer Baud Rates |
2400, 4800, 19200 |
2400, 4800, 19200 |
2400, 4800, 19200 |
2400, 4800, 19200 |
2400, 4800, 19200 |
| Analog Voltage Output |
0-2.5 V |
0-2.5 V |
0-2.5 V |
0-2.5 V |
0-2.5 V |
| Analog Current Output |
Optional
4.-20 mA
Upgrade
|
Optional
4.-20 mA
Upgrade |
4-20 mA |
4-20 mA |
4-20 mA |
| Output Ranges |
User Defined
Scaling Factor in Menu |
User Defined
Scaling Factor in Menu |
User Defined
Scaling Factor in Menu |
User Defined
Scaling Factor in Menu |
User Defined
Scaling Factor in Menu |
| DewLine™ |
Yes |
Yes |
Yes |
Yes |
Yes |
| GPS Option |
Yes |
Yes |
No |
No |
No |
| Flash Card Option |
Yes |
Yes |
No |
No |
No |
| Relay with 2 Setpoints |
No |
No |
Yes |
Yes |
Yes |
| Backup Air Pump |
Yes |
Yes |
No |
No |
No |
| Flow Meter |
Yes |
Yes |
No |
No |
No |
| Upgradable to Dual Beam |
Yes |
N/A |
No |
No |
No |
| Federal Equivalent Method (FEM) |
Yes |
N/A |
No
|
N/A |
N/A |
|
