KAN310 integrated on-line ammonia-nitrogen sensor is made of
ammonium ion selective electrode based on PVC membrane, which is
used to measure the content of ammonium ion in water with
temperature compensation.
2.Feature
- Signal Output: RS-485 bus, Modbus/RTU protocol,
- Convenient to connect to PLC, DCS, Industrial Control Computer,
General Controller, paperless recording instrument or touch screen
and other third-party equipment.
- The patented ammonium ion probe, with an internal reference fluid
at a pressure of at least 100 kpa (1 bar), oozes extremely slowly
from the microporous salt bridge. Such a reference system is very
stable and the electrode life is longer than ordinary industrial
electrode life.
- Easy to install: submerged installation.
- Ip68, containment level.
| Model Number | KAN310 |
| Range | 0 ~ 10.00 mg/L (0 ~ 100.00 mg/L) |
| Resolution | 0.01 MGL |
| Precision | ± 10% or ± 1MG/L |
| Operating Temperature | 0 ~ 40 °C |
| Working Pressure | < 0.1 mpa |
| The Ph Range Of The Medium | 4 ~ 10ph |
| Temperature Compensation | Automatic temperature compensation (PT1000) |
| Power Supply | 12 ~ 24 VDC ± 10% |
| Signal Output | RS-485 bus, Modbus/RTU protocol |
| Contact Material | PVC and POM |
| Installation Mode | Immersion mounting |
| Cable Length | 5 meters, other length can be customized |
| Calibration Mode | Two-point calibration |
| Power Consumption | < 0.05 W |
| Protection Level | IP68 |
Note: The sensor can not be installed upside down or horizontally,
at least tilt more than 15 degrees angle installation.
The cable is a 4-core twisted pair shielded wire defined in line
sequence:
Red wire -- power cord (12V-24VDC)
Black line (GND)
Blue Line -- 485a
White line -- 485b
Before electrification, the wiring sequence should be carefully
checked to avoid unnecessary losses caused by wiring errors.
Wiring instructions: Consider the cable long-term immersion in
water (including seawater) or exposed to air, all wiring are
required to do waterproof treatment, customer cable should have a
certain anti-corrosion ability.
6.Maintenance
6.1 Use and Maintenance
Clean the electrode in distilled (or deionized) water and dry it,
do not dry it. Place the electrodes on the electrode holder. Before
use, the front end of the electrode is immersed in distilled (or
deionized) water for 10 minutes, and then in a diluted solution of
ammonium ions for 2 hours.
The electrode should be kept dry before use. The sensor of the
electrode should be put into the protective bottle. Before testing,
the electrode should be immersed in the activation solution for 24
hours. If stored overnight or longer, the electrode head should be
cleaned with deionized water, dried, and then placed in the
original packaging.
Check whether the terminal is dry, if there is any dirt, please
wipe with absolute alcohol, blow dry after use. Long-term immersion
in distilled water or protein solutions should be avoided and
contact with silicone oils should be avoided. The longer the use of
the electrode, its PVC membrane may become translucent or attached
to sediment, at this time can be used distilled water (or deionized
water) rinse. The electrode is used for a long time. If there is
any measurement error, it must be corrected with the instrument.
When the electrode can not be calibrated and measured in the above
way, please replace the electrode.
The main interfering ions are shown in the following table:
The interference ion concentration with 10% error can be produced
under different ammonium ion concentration
| Interferences (moles/liter) | 10-4m Ammonium | 10-3m ammonia | 10-2m Ammonium |
| H + | < 2 | < 1 | < 1 |
| Li + | 0.2 | 0.5 | 0.5 |
| Na + | 0.005 | 0.08 | 0.8 |
| K + | 7 * 10-5 | 6 * 10-4 | 6 * 10-3 |
| CS + | 0.003 | 0.05 | 0.5 |
| Mg3 + | > 0.5 | > 1 | > 1 |
| Ca2 + | > 0.2 | > 1 | > 1 |
| Sr2 + | > 0.2 | > 1 | > 1 |
| Ba2 + | > 0.1 | > 0.5 | > 0.5 |
| Zn2 + | 0.001 | 0.01 | 0.1 |
| N2H5 + | > 0.1 | > 0.1 | > 0.1 |
| Bu4n + | 1 * 10-5 | 1 * 10-4 | 1 * 10-3 |
6.2 Calibration of Sensors
Note: The sensor has been calibrated before the factory, if not out
of measurement error should not be arbitrary calibration.
Zero calibration
Place the sensor in a vial containing a standard solution of zero
point and wait 5 minutes for the value to stabilize to see if it is
within the range of error, or if it is not, zero calibration is
required. Reference Appendix to calibration instruction.
Slope calibration
Place the sensor in a vial containing the slope standard solution
and wait 5 minutes until the values are stable to see if they are
within the error range. If not, slope calibration is required.
Reference Appendix to calibration instruction.
7.Quality and Service
Quality inspection departments have standardized inspection
procedures, with advanced and perfect testing equipment and means,
and in strict accordance with the rules of inspection, 72-hour
aging of products to do experiments, stability experiments, do not
let a unqualified product factory.
The consignee will return the lot of the product with 2%
nonconformity rate, and all the cost will be borne by the supplier.
The standard of consideration refers to the product description
provided by the supplier.
Guarantee the quantity and speed of delivery.
This product includes:
1 sensor
1 copy of instruction manual
Certificate 1
1 mg/L and 10 mg/L calibration solution 100 ml each
100 ml pre-activation fluid
The company provides a one-year warranty from the date of sale, the
electrodes are consumables warranty for half a year. But does not
include the damage caused by improper use, if need repair or
adjustment, please send back, but the freight is at your own
expense, send back to make sure the packing is good to avoid damage
in transit, our company will repair the damage free of charge.
