Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
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28
Feb
2018
Ground balance calibration of metal detector
6.1Ground balance calibration:Auto calibration:The auto calibration is just to turn the unit on.Calibrate by this method, after the unit turned on, a group of red light will keep b
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22
Feb
2018
How does a metal detector identify metals
6.1.2 identificationThis method can distinguish the non-ferrous metal (gold, silver, copper) and black metal (magnetic metal, such as steel, iron, etc.), can also choose and do not
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12
Feb
2018
Features of Underground metal detector AR944M
1. Apply an electromagnetic field to detect the presence of a concealed metal object. 2. Designed to find gold & silver jewelry, coins and other metal in the ground, and can also
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31
Jan
2018
Applicable scenarios of underground metal detectors
Testing metal foreign body of raw materials, fuel and food, Detection of underground pipeline & line, Archaeology,Exploration, Found buried treasures of gold,silver and metal
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09
Jan
2018
introduction of Underground Metal Detector
AR944M metal detector is a new improved product and application of foreign advanced technology and imported components. With the old product comparison, the instrument to lean in t
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29
Dec
2017
Ultrasnoic thickness gauge AS840 AS850 AS860
Ultrasnoic thickness gauge AS840 AS850 AS860 and pls check the below comparision of Ultrasonic thickness thickness for AS840 AS850 AS860
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20
Dec
2017
Introduction of Ultrasonic thickness gauge
Ultrasonic Thickness Gauge This unit is an intelligent handheld product, which adopts ultrasonic measuring principle, and is controlled by micro processor, provides quick and preci
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08
Dec
2017
Table of sound velocity for thickness gauge
Table of sound velocity (Sound velocity of common materials) Material Velocity(m/s) Material Velocity(m/s) Aluminum 6320 Acetate resin 2670 Zinc 4
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30
Nov
2017
Troubleshooting of infrared thermometer
Symptom Problem Action OL (on display) Target temperature out of range Select a target within the metric range -OL(on display) Target temperature below range Select a target with
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26
Nov
2017
working principle of electronic thermometer
The working principle of the electronic thermometer is that when the temperature is measured, the infrared energy emitted by the measured object is collected by the optical system
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15
Nov
2017
Maintenance of infrared thermometers
1. Replace the battery To install or replace the battery, open the battery compartment as shown in Figure 2 and insert the battery. 2. Clean the lens Use clean compressed air to
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08
Nov
2017
Introduction of infrared thermometer
Infrared thermometer consists of optical system, photodetector, signal amplifier, signal processing, display output and other parts. The optical system concentrates the infrared ra
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31
Oct
2017
4 in 1 Multi gas detector ST8900
SMART SENSOR 4 IN 1 MULTI GAS DETECTOR ST8900 AS8900 SMART SENSOR Multi-Gas Meter is a portable and handheld instrument that is capable to use continuously monitoring four differen
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16
Oct
2017
How stay away from electromagnetic radiation?
Many electrical appliances in life contain electromagnetic radiation, so how can we prevent electromagnetic radiation? How to stay away from the harm of electromagnetic radiation?
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06
Oct
2017
What radiation are pregnant women most afraid of?
1. The radiation that pregnant women are most afraid of mainly comes from the hospital. If they fall ill without knowing that they are pregnant, they go to the radiology department
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27
Sep
2017
Hazards of Electromagnetic Radiation
1. It is one of the causes of childhood leukemia. Medical research has proved that long-term exposure to high electromagnetic radiation will cause changes in blood, lymph and cell
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15
Sep
2017
Features of Electromagnetic radiation detector
1. Portable design, light weight, easy to operate with one hand, easy to move or measure on site 2. Using innovative patented circuit components to ensure that all device performa
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07
Sep
2017
Electromagnetic radiation detector
Electromagnetic radiation detectors are mainly used for radiation measurement of electrical appliances, high-voltage lines, base stations, etc. in life, which can effectively help
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31
Aug
2017
The Application of Radiation Detector
R-PD type intelligent х-γ radiation meter is widely used in medical treatment, disease control, environmental protection, metallurgy, petroleum, chemical industry, radioactive labo
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25
Aug
2017
What is radiation detector?
Radiation detectors are instruments used to measure high-energy and low-energy x and gamma rays. R-PD type intelligent х-γ radiation meter uses highly sensitive scintillation cryst
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