Product Introduction:
The air negative ion monitor uses internationally advanced cylinder capacitance technology for negative ion measurement. Adopting unique airflow buffering technology, the airflow is stable and the ion flow capture is reliable, making its measurement stability unique in the industry. Not only is the craftsmanship exquisite, the shell compact, and easy to use, but it also has good consistency, high reliability, and strong applicability. It can facilitate professional analysis and research of atmospheric ions, and can accurately measure the number of negative ions emitted by objects such as ores and negative ion powders. It has achieved excellent three "most" characteristics: most accurate (precision), most stable (stability), and lowest (price).
Product Features
1. The cylinder capacitor air collector, with advanced negative pressure dust removal structure, not only has strong stability, but also ensures long-term operation in harsh environments.
2. The cylindrical capacitor air collector inherently has excellent electrostatic shielding function, which can effectively overcome the adverse effects of static electricity on measurement.
3. The unique airflow buffering technology and centrifugal aerodynamic structure avoid the impact of spiral airflow on measurement.
4. Using specially made insulation materials with super strong moisture resistance, ensuring no frost or condensation in high humidity environments and normal operation.
5. Equipped with advanced amplification circuit, it can detect the number of negative ions with high sensitivity.
6. It has an automatic working mode, no manual processing required, and works automatically upon power on, with continuous measurement.
Technical parameters of air negative ion monitoring instrument
Power supply mode |
DC12V-24V |
Range of measurement |
0~5000、0~50000 、 0~500000(individual/ cm3)optional |
Output |
electric current:4~20mAVoltage:0~5V、 RS485 |
Sampling rate |
50individual/second |
Instrument line length |
Standard configuration:2.5Rice (customizable) |
error |
±15% |
Average Power |
1.7W |
mobility |
1(cm2/S*V) |
resolution |
1An ion/cm3 |
Detection parameters |
negative ion |
Product scope of application
Ecological park, wetland park, waterfall park, forest park, nature reserve, tourist attraction,Negative ion research institute, etc.
MODBUS-RTUCommunication protocol
1、 Serial port description: As shown in the following figure: Format
Data bits 8position
stop bit 1perhaps2position
No check digit
Baud rate 9600 At least two communication intervals1000msthe above
2、 Communication format
(1)Write device address
send out:00 10 Adress CRC(5Bytes)
return:00 10 CRC(4Bytes)
explain:1.The address bit of the read/write address command must be00.
2. Adress is1A byte, with a range of0-255.
For example: sending00 10 01BD C0 return00 1000 7C
(2)Read device address
send out:00 20 CRC(4Bytes)
return:00 20 Adress CRC(5Bytes)
explain:Adressdo1A byte, with a range of0-255
For example: sending00 20 00 68 return00 20 01A9 C0
(3)Read real-time data
send out:Adress 03 00 00 00 01 XX XX
code |
functional definition |
notes |
Adress |
Station number (address) |
|
03 |
function code |
|
00 00 |
start address |
|
00 01 |
Read points |
|
XX XX |
CRCVerification code, low in front and high in back |
|
return: Adress 03 02 XX XX XX XX
explain:
code |
functional definition |
notes |
Adress |
Station number (address) |
|
03 |
function code |
|
02 |
Read unit byte |
|
XX XX |
Data (high in front and low in back) |
hexadecimal |
XX XX |
CRCCheck Code |
|
Product structure diagram