The nitrogen oxide gas electrode method is an effective method to measure the nitrogen oxide content in samples.
Nitrogen oxide gas electrodes are also often used in on-line instruments.
Nitrogen oxide gas electrode, with the advantages of simple measurement, fast and accurate response, can be used with PH meter, ion meter and on-line analyzer, widely used in air quality and accumulation cargo monitoring.
Application:
This electrode is used to measure the concentration of nitrite ions in an aqueous solution. The measurements were not subject to sample color and turbidity. There are many kinds of nitrogen oxides (NOX), including nitrous oxide (N 2 O), nitric oxide (NO), nitrogen dioxide (NO 2), nitrous oxide trioxide (N 2 O 3), nitrous oxide (N2O4) and other compounds, but mainly NO and NO2, which are common air pollutants. Among them, nitrous oxide (N 2 O), nitrous trioxide (N 2 O 3), and nitrous oxide (N 2 O 4) are extremely unstable in general environment and easily converted into NO 2- (nitrite ion).
Sensing technical parameter
| gradient |
56 ± 3mv |
| repetitiveness |
± 2% |
| disturb |
CO 2, SO 2, HF, acetic acid, etc |
| temperature range |
0-50°C |
| pressure limit |
0-2 atm |
| response speed |
In 30 seconds to reach a 95% response |
| lay in |
Long term: dry storage; short term: stored in nitrogen oxide solution |
| measuring range |
0.2ppm –2200ppm |
| PH range |
1.1-1.7 |
| output impedence |
20-50MΩ |
| Maintenance and cleaning |
Adjust the PH to 1.1-1.7. |
| |
Replace the electrode membrane when required |
| temperature compensation |
10k/22k//2.252K/PT1000/PT100 Optional |
| on line operation |
Yes, adjust the PH value |
| material quality |
PMMA+PVC |
| connect |
terminal |
| apply |
In the air quality and accumulation of cargo monitoring |
Controller parameters
| Model |
MDS-KP500 |
| Display |
4.3 inches, 480*800 resolution, 262K color, IPS screen, wide viewing Angle, with backlight |
| |
Capacitive touch screen with three protection processes (moisture-proof, mildew proof, salt spray proof) |
| Display size |
95.0mm*53.9mm |
| Measuring range |
-99999.0000~99999.0000 |
| Password Protection |
The default password is 0000 |
| Compatible sensor |
Digital sensor |
| Mounting method |
Disk mounting (with chassis), wall-mounted mounting |
| Alarm relay |
2 relays can set high and low alarm |
| Current output |
2 isolated 4-20mA, maximum load 750Q, can be set |
| Communication port |
RS485 Modbus RTU |
| Memory backup |
All user Settings are stored indefinitely in EERPOM |
| historical data |
The storage capacity of 8000 points is recorded at a 5-minute interval |
| Operating environment |
-10~+50℃,0~95% relative humidity, no condensation |
| Storage environment |
-20 to +70 ° C,0 to 95% relative humidity, non-condensing |
| The power supply |
12V±10% |
| Power consumption of the instrument |
less than 6W |
| Instrument size |
144X145X85(mm) |
| Protection class |
IP65 |
