DQ-3105F ozone analyzer

1. Overview

The ozone analyzer, for the domestic high-end technology products. Online continuous detection of ozone gas can be achieved. The instrument adopts the device as the imported device, which has the characteristics of high precision, high sensitivity and fast response time. The data is operated by a special design and development management software, and is displayed on the touch screen in real time, which is convenient to operate and easy to detect the concentration in real time. Humanized design, easy to operate, install and carry. The product can be traced to the ozone reference device SRP41 of the China Institute of Metrology (SRP41 can be traced to the International Bureau of Weights and Measures BIPM).

2. working principle

Oxygen molecules produce ozone molecules through arc discharge, and ozone molecules absorb ultraviolet light with a wavelength of 253.7nm. Through a specific light cell, ozone molecules absorb ultraviolet light with a wavelength of 253.7nm, and the intensity of the absorbed ultraviolet light is proportional to the concentration of ozone molecules. The Lambert-Beer law can accurately determine the ozone concentration value.

3. product features and technical parameters

1. Product features
★LCD touch screen display
★Dedicated user-friendly management software for real-time viewing of data
★Stable and reliable performance
★high precision
★Strong anti-interference performance
★Adopt imported devices
★Simple and convenient operation
★online real-time detection







 

2. Technical parameters

Working voltage: 220VAC/50Hz
Detection of ozone concentration: 0.002mg/m3~2mg/m3
Repeatability: 2%
Indication error limit: ± 2%
Display mode: LCD screen display
Operation mode: touch screen software operation
Preheating time: 30min





 

Working environment:
Temperature: 18 ℃ ~ 35 ℃; relative humidity:<85%; atmospheric pressure: 86kPa ~ 106kPa
Working voltage: AC 220V/50Hz

 

4. working environment requirements

The installation environment is mainly a special laboratory with no vibration, no impact, no electromagnetic interference, no high frequency, strong electric field interference, good ventilation, less dust, no interference gas around, no direct sunlight, and good ventilation facilities.

5. equipment composition and connection

The ozone analyzer mainly includes a display part, a control part, a detection part, etc. The interfaces on the back side of the device mainly include: ozone inlet, zero air inlet, and exhaust port.

1. Preparation before installation
Pipeline material: the pipes connecting the gas path are all PTFE pipes.
Zero air source: you can bring your own compressed air or zero air generator, you can also use ambient air as zero air.
2. Connecting gas circuit
The "ozone inlet" of the device is connected with a detection air source. The input of the air source is self-priming. The front end of the inlet needs to be connected with a discharge port to prevent excessive pressure from damaging the instrument.
The "emptying port" is directly discharged from the outdoor by the ventilation facility.




 

6. operating instructions

1. Instrument preheating
a. Turn on the I/0 switch of the equipment, and the preheating time is about 30 minutes;
B, open the exhaust switch at the same time to exhaust air;
c. After power on, the computer power switch on the front panel is automatically turned on, the software operating system is automatically turned on, and the operation interface is entered.
2. After the instrument is warmed up, turn on the other instruments in turn.
A, first open the fume hood;
B. Connect the detected gas source,
C, after the system display is stable, the corresponding recording work can be carried out;
E, after the end of the operation, first turn off the air source, then turn off the device and computer, and finally turn off the ventilation facilities.







 

3. Software operation

After turning on the power, the computer will automatically start and open the software to enter the work interface, as shown in the figure

Click "File" → "List Display", or click on the upper part of the software to display detailed dynamic data at the bottom of the interface. Click Save when you need to save the data, and the saved files can be named freely.
When you do not want to display dynamic data, click "List Display" or the upper part of the software.
Click the black unit symbol "ppb" on the right side of the digital display box to select different display units for switching.
"Parameter setting" and "calibration setting" are forbidden to operate at ordinary times and are only used when the instrument is calibrated.


 

4. Precautions

A, before the operation of the instrument, be sure to open the fume hood.
B, in the process of operation, must pay attention to personal safety.
C, the input of the air source is self-priming, and the front end of the inlet needs to be connected with the discharge port to prevent excessive pressure from damaging the instrument.
D, when not in use to shut down the equipment in time;
E, do not put in high voltage, high magnetic field, high frequency and other electromagnetic environment, to avoid mutual influence.



 

Maintenance and maintenance of 7. instruments

1, the correct use of instruments and supporting facilities, the operation in strict accordance with the requirements of the operation.
2, environmental requirements: shall not be placed in damp, vibration, voltage instability, strong magnetic and electric interference, dusty places to use, should be installed in a well-configured laboratory; to avoid power outages to prevent data loss.
3. Avoid direct sunlight to prevent affecting the light sensing system of the instrument.
4, after the use of timely cleaning and maintenance, to avoid residue; should also be timely shutdown, to avoid long-term boot caused by the loss of consumable parts.
5. Regular power-on: power-on once a week when not in use for a long time, so as to prevent moisture and keep the instrument in working condition all the time, and prevent obvious changes in the performance index of the instrument after long-term shutdown.
6. Regular verification: In order to ensure the accuracy and reliability of the instrument test data, it is recommended to check regularly.




 

8. transportation and storage

1. When the instrument needs to be transported, protective measures should be taken, which can be transported according to the original packaging, and must avoid falling and rolling. Must prevent rain, sun exposure and severe impact.
2. The instrument shall be stored under packaging conditions before use. The indoor ambient temperature of the instrument shall be 0-40 ℃, the relative humidity shall not be more than 85%, and there shall be no corrosive gas in the room.
3. When the instrument is not used for a long time, it should be stored in a cool and dry place, and should be cleaned regularly to avoid dust and direct sunlight.