Brief introduction
The RB-202D portable COD total phosphorus analyzer is developed and designed by our company according to relevant standards; An integrated machine used by environmental monitoring and supervision personnel for on-site measurement of COD and total phosphorus content in water samples, suitable for outdoor on-site measurement.
This instrument is equipped with two large capacity lithium batteries, which can be used for pre-treatment digestion and water sample determination respectively. They do not interfere with each other and can be used for both AC and DC; Built in printer, real-time printing of measurement values, convenient for on-site analysis and discussion; Human computer interactive operation, simple operation, users can apply this product without complex professional knowledge.
2、 Technical parameters
Table 1RB-202D portable COD total phosphorus analyzer technology
|
Testing items |
COD (Chemical Oxygen Demand) |
total phosphorus |
|
measuring method |
HJ/T399-2007 "Water Quality Rapid Digestion Spectrometric Method" |
Ammonium molybdate spectrophotometric method for water quality (HJ671-2013) |
|
Measurement range |
5-5000mg/L (exceeding dilution measurement) |
0-12mg/L (exceeding dilution measurement) |
|
accuracy |
≤±5%(F.S) |
|
|
Light source lifespan |
>100000 hours |
|
|
Anti chlorine interference |
≤ 1000mg/L (exceeding dilution measurement) |
— |
|
Storage |
30000 measurement values and 100 standard curves |
|
|
calibration |
1-7 point calibration mode, automatic calibration of curve values |
|
|
Dissolving temperature |
165℃±1℃ |
120℃±1℃ |
|
digestion time |
15 minutes (automatic timer) |
30 Minutes |
|
Batch processing volume |
4 water samples |
|
|
Temperature indication error |
≤±1℃ |
|
|
size |
400mm*300mm*200mm |
|
|
weight |
<8kg |
|
|
power supply |
Lithium battery, AC (220V ± 5%), 50Hz (AC/DC dual-use) |
|
|
ambient temperature |
5~45℃ |
|
|
ambient humidity |
≤ 85% non condensing |
|
IIIMain functional features
1. Dual LCD display, 240 * 128 large screen, pure Chinese operation interface, easy to operate; 2. New optical circuit design with strong anti-interference ability, high measurement data accuracy, and good stability; 3. Automatic constant temperature control system, PID regulation technology, constant temperature and high accuracy during the digestion process; 4. The instrument can automatically calibrate the measurement curve, automatically zero, and is easy to operate; 5. The measurement and digestion systems are designed separately, with independent power control, and the operation process can be carried out separately without affecting each other;
6. It has a 1-7 point calibration mode and automatically corrects curve values; 7. The instrument is equipped with a large capacity lithium battery, which can achieve heating digestion and colorimetric determination of multiple batches of water samples; 8. Adopting high brightness cold light source, the light source has a lifespan of up to 100000 hours, small drift, and long lifespan; 9. Equipped with an RS232 interface, it can be connected to a computer to transfer measurement data to the computer for permanent storage; 10. Built in thermal printer, real-time printing of measurement data and historical data, convenient for on-site analysis and discussion;
11. The instrument has a built-in real-time clock, and each measurement record has a measurement timestamp for easy statistics and queries;
12. The temperature control range of the digester is 0-200 ℃, and the time setting range is 0-999min, which can be automatically timed; 13. Handheld box design, lightweight, aesthetically pleasing, and easy to carry;
4Standard List
One measurement host (including a suitcase); 10 digestion tubes; Two colorimetric dishes; COD、 One set of specialized reagents for total phosphorus; 1 protective cover; 1 power cable and 1 data cable each; 1 copy of instruction manual; 1 warranty card; 1 certificate of conformity

