The Epex series air negative oxygen ion monitoring system can be used to measure the air background value and various positive and negative polarities of large, medium and small ions of various positive and negative polarities produced by various air ion generators.It has the characteristics of accurate measurement, high sensitivity, strong environmental adaptability, and can work continuously in the field for a long time.This machine is designed based on the principle of "Gerdien Tube" air ion collector, with a gold-plated ion collection cylinder, which has high ion charge conversion efficiency, stable and reliable operation; the circuit adopts an advanced amplifier, high sensitivity and good stability, and uses a 3.5-inch LCD display.Rich display content.The instrument shell is oxidized with metal aluminum, which is beautiful and generous, lightweight, and is very suitable for field testing projects.The instrument is calibrated according to internationally accepted technical specifications, and all technical indicators have reached the international advanced level.

The device adopts wireless 4G transmission without any need to be transmitted; the device can be configured with GPS positioning function to upload latitude and longitude and altitude data; when the GPS function is configured, the device can automatically calibrate.The power supply can be powered by its own battery or 220V mains power supply, providing convenience for field testing.Lightweight and beautiful design, easy to carry, is a good solution for mobile testing

1.1Equipment Features

ComeIt has built-in advanced amplification circuit and filtering technology, which can detect negative ions and changes in high sensitivity, stability and accuracy.

ComeAdvanced cumulative error elimination technology can automatically eliminate cumulative errors for long-term operation, thereby improving measurement accuracy and stability.

ComeThe "GerdienTube" air collector has excellent electromagnetic shielding function innately, which can better overcome the adverse effects of static electricity on measurement.

ComeThe equipment mechanism is reasonably designed to ensure work in harsh environments.

ComeSuper strong moisture resistance, built-in dehumidification device, the system automatically heats according to temperature and humidity, effectively preventing frost and dew condensation.

ComeLarge-capacity TF card storage can store data for several years.

ComeWith 4G wireless communication function, managers can remotely obtain data saved by front-end devices at any place in the country and monitor the operation of the device.

ComeUnattended work, you only need to provide power and data will be automatically reported.

ComeBuilt-in large-capacity lithium battery, which can meet the needs of at least 6 hours of work in the field.

ComeObservation data can be copied directly through the USB drive.

1.2Portable device control panel description

1.2.1Equipment front instructions

The overall picture of the front of the equipment is as follows:

1.2.2Device left description

The left picture of the device is as follows:

1.Communication power button: Press the button, the device comes with its own4GThe module is powered on and data uploads are wirelessly started.

When setting motherboard parameters, release this button, otherwise the setting will not be successful.

2. GPSantenna:GPS+Beidou dual-mode positioning.The device display displays the latitude and longitude of the current location and the height of the sea wave.Use this function to press the communication power button.When the communication power button is released, the latitude and longitude of the motherboard is set in command mode.

3.Temperature and humidity interface: If you want to measure temperature and humidity data, please insert the temperature and humidity sensor before turning on the machine.

4.Charging port: Use a charger to charge the lithium battery with its own.

5.Temperature and humidity bracket: Fixed temperature and humidity sensor.

6. 4GAntenna: Glue rod antenna.

7. UDisk: In power-on state, insertUDisk, device detectedUConnect the disk to automatically bring the device's ownTFCopy the data in the card toUplate.

8.Communication module settings: Settings4GModule parameters.

9. SIM card: The device supports 3 network 4G mobile phone card.Facing the device display, the phone card notch is inserted into the card slot facing outward and downward.

10. RS232 serial port: an interface used to connect to the computer to export data, set or read parameters.The supporting serial port cable is connected to the computer before turning on the computer.

1.2.3Description on the right side of the device

The picture on the right side of the device is as follows:

1.Collection entrance: The entrance to the equipment collects air, be careful not to block it with foreign objects.

2.Power switch: "o" is off and "—" is on.

1.2.4Equipment description later

Collector outlet: the outlet for the equipment to collect air.

1.2.5The LCD screen display content of the device

The LCD screen displays negative ions, temperature and humidity, where negative ions are updated once a minute.When connected to the GPS/BD satellite positioning antenna, longitude, latitude, and altitude will vary with geographical location, and its observation trajectory will be recorded.The next line shows the time. When there is satellite positioning, its time is accurately synchronized with Beijing time.The device's unique ID number is displayed in the bottom right corner.

1.3Equipment accessories

1.3.1Temperature and humidity sensor

The temperature and humidity sensor uses an aluminum alloy housing. In the event of power outage, the aviation head is inserted into the aviation seat of the equipment and the sensor is pressed into the fixture.

1.The power supply voltage is 5--12V, and the current is less than 40 mA.

2.Temperature measurement range -40℃-120℃

3.Relative humidity measurement range 0%-100%

4.Temperature measurement accuracy ±0.1℃ (temperature 20℃-80℃)

5.Humidity measurement accuracy ±1.5%

6. Output signal: RS485

1.3.2 GPS/BDantenna

GPS/BDSatellite positioning antenna, receiving GPS and Beitou satellites.When the device receives satellite positioning information, the display screen latitude and longitude and altitude data are updated with changes in geographical location, and the positioning information is uploaded to the server.

1.3.3Rod shape4Gantenna

1.Frequency range: 698-960/1710-2700MHz/3300-3800MHZ

2.Gain: 6DB

3.Input impedance: 50Ω

4.Polarization method: vertical

1.3.4charger

Input: 100-240VAC50/60HzOutput: 12.6V, 2.0A

1.3.5Serial port cable

Direct to the serial port line, connecting the device and the computer in the event of power outage.Device parameters or receive device data through computer software.

1.4Portable negative ion parameter table