Ningbo Kaidi Science Instrument Co., Ltd
Contact: Cai Rong children
Address: No. 588, Huancheng West Road, Zhouxiang Town, Cixi City, Zhejiang Province, China
Noise measuring instrument
Noise analyzer for the primary and secondary schools to carry out extra-curricular activities of environmental monitoring teaching equipment. Mainly used to determine environmental noise, noise engineering, quality control and health control. Such as for factories, offices, traffic roads, audio, home and air conditioning, refrigerators, and so on a variety of occasions, the amount of noise measurement.
The instrument for high-precision noise detector, using LCD display, the maximum accuracy of up to ± 1.5dB. With a power-on self-test, since
Power off function, when the instrument will automatically shut down after 20 minutes to reduce power consumption.
1, measuring range: 40dB ~ 130dB.
2, the resolution: 0.1 dB.
3, the measurement error: ± 0.1dB.
4, display features: digital bar bar display.
5, with fast and slow response switching function.
6, with A, C weighting function (right middle small print display A or C).
7, with the maximum lock function.
8, with under-voltage display (lower-left corner of the display shows the small word BAT).
9, with automatic shutdown function.
10, digital display refresh time of about 160ms, the chart shows the refresh time of about 40ms.
11, with automatic range and manual range measurement switch function (automatic range display upper-left corner of the small print is displayed as AUTO, manual range display upper left corner of the small print is displayed as MANU)
12, manual range measurement group display: 40dB ~ 70dB, 60dB ~ 90dB, 80dB ~ 110dB, 100dB ~ 130dB, respectively, show the lower limit.
13, manual measurement range, when the measured value <set the lower limit of the display when the display L0, when the measured value> set the upper limit of the display when the display HI, when the measured value within the set range display measured value .
14, pointing to the characteristics should meet the national standard GB3785 on the sound level meter requirements.
An evaporator is an instrument used to determine the evaporation of water in the atmosphere over a period of time. Compact structure, beautiful shape, durable, practical, for the primary and secondary schools to carry out extra-curricular activities of environmental monitoring teaching equipment.
1, the evaporator diameter φ200mm, height of about 100 mm metal round basin.
2, the evaporator for the metal circular structure, the wall should be smooth, the edge of the evaporator may not have glitches or bumps and other defects.
3, all parts of the contact with water should be smooth, the mutual cooperation or connection should be tight, solid, no leakage of water phenomenon.
4, the evaporator of the zero, the assembly of parts should be correct, shall not be loose, deformation and other effects of the use of defects.
5, the evaporator of the zero, parts deposited by the protective layer should be solid, uniform, smooth, no delamination, corrosion and other defects.
6, the evaporator and installation of the framework should be easy to install, and can make the evaporator in normal use will not be affected by wind and disengaged.
7, Annex: a measuring cup with a scale, a water storage device, a framework for the installation, a metal mesh cover (bird water, the user can choose).
Soil test box
Soil test box to enable primary and secondary students out of the laboratory, at the scene to directly measure the soil to the desired data. Easy to use, carry.
Detection of content
1, the determination of soil pH.
2, the determination of ammonium in soil.
3, the determination of available phosphorus.
Water quality test box
Water quality test box to enable primary and secondary students out of the laboratory, at the scene directly measured the water quality data. Easy to use, carry.
Detection of content
1, the total hardness of water.
2, six of the price determination.
3, Pb2 + determination.
Digital pH meter
Digital pH meter for the primary and secondary schools to carry out extra-curricular environmental monitoring activities with the teaching equipment. The instrument is a small portable low-power products. Can quickly measure the pH value of the measurement solution (PH), measured using a new type of PH sensor to improve the test accuracy. With a bright LCD screen display, intuitive clear readings.
1, measuring range: 0 ~ 14.0.
2, the resolution: 0.1.
3, Accuracy: ≤ ± 0.1.
4, digital LCD display.
5, with power off, measurement and lock function.
Air quality test box
Air quality test box integrates the most advanced foreign instruments, combined into a set of advanced detection box, so that students out of the laboratory, at the scene to directly measure the air quality data. Easy to use, carry.
Detection of content
1, the determination of sulfur dioxide gas
(1) Measuring range: 0 ~ 20ppm
(2) Measurement accuracy: ± 10%
2, nitrogen dioxide gas determination
(1) Measuring range: 0 ~ 20ppm
(2) Measurement accuracy: ± 10%
3, the determination of airborne dust particles (exploratory experiment)
Environmental test box
Environmental speed test box is a combination of junior high school natural science and high school geography, chemistry textbooks related content and experimental book, to complete the eight air in the air rapid monitoring, as well as soil pH, P, N determination, water quality determination, air quality measurement And the like. It includes two parts: rapid classroom experiment and experimental analysis experiment.
1, air quality determination
(1) the determination of dust particles in the air (exploratory experiment)
(2) determination of sulfur dioxide (SO2) in air
(3) determination of nitrogen dioxide (NO2) in air
2, water quality determination
(1) water temperature and water pH (PH value) determination
(2) eutrophication of water pollution (exploratory experiment)
(3) the number of bacteria in water (exploratory experiment)
(4) determination of ammonium in water
(5) Determination of phosphate in water
3, soil determination
(1) Determination of soil pH (PH value)
(2) Determination of phosphorus (P) in soil
(3) Determination of nitrogen (N) in soil
Dust detector is based on the original artificial increase in the new microcomputer-controlled automatic dust detector. For the primary and secondary schools to carry out extra-curricular activities of environmental monitoring teaching equipment can be on the atmosphere of dust, dust and radioactive concentration and pollution conditions for monitoring the ideal sampling equipment. The instrument uses the latest microcomputer chip is simple, high precision timing, durable, AC and DC compatible, convenient and quick election. Countdown 0 ~ 99 hours, arbitrary choice, is the same type of equipment in the off-line personal practical dust filter type dust detector.
The instrument is portable, suitable for environmental teaching, indoor air pollution detection real-time monitoring.
1, suction pump: no-load gas flow is not less than 25 L / min.
2, the timer: 0 ~ 99 hours 59 minutes between any set.
3, the working voltage: AC220V / 50Hz, DC: DC12V.
4, pumping stability: to allow the beating ± 1 small grid (15L / min)
5, the flow error: ≤ ± 5%
6, timing error: ≤ ± 2min / day
7, the working temperature: -25 ~ 45 ℃
8, the relative humidity: ≤ 85%
9, the host size: 220 × 155 × 175 (mm).
Host by the air pump, flowmeter, DC motor, dust sampling head, chassis, microcomputer timer composed of several parts.
This instrument uses AC and DC power supply, external 220V AC power can also be an external DC 12V power supply, suction pump with all-metal structure, long life, large suction.
Atmospheric sampler is a commonly used instrument for collecting all kinds of harmful gases. It is widely used in air environment monitoring, health and epidemic prevention, labor protection, scientific research, teaching and other units for primary and secondary schools to carry out extra-curricular environmental monitoring activities with teaching equipment, and for air pollution monitoring and workshop mine health survey . Through the analysis of the sampling gas to understand the extent of environmental damage by harmful gases, and to the relevant departments to provide the actual situation of pollution in order to take measures to protect people to have a healthy living environment.
The instrument uses microcomputer control technology, accurate sampling time, with a bright digital tube display, intuitive and clear observation. For the portable collection of atmospheric carbon dioxide, sulfur dioxide samples. The instrument is compact, stable performance, small size, light weight, easy to carry, is currently the small portable atmospheric sampling instruments in the ideal instrument. Exchange different sampling load, with different absorption methods, sampling equipment can do a machine.
1, pump: no-load flow is not less than 2L / min. (Full scale value)
2, the sampling flow: ≥ 1L / min
3, the timer: 0 - 99 minutes 59 seconds between any set.
4, timing error: <5%
5, the working voltage: AC220V / 50Hz, DC voltage: DC9V.
6, pumping stability: to allow the beating ± 1 small cells (1.5L / min).
7, the ambient temperature: -10 ~ 40 ℃
8, relative humidity: 35 ~ 85% RH
Carbon Dioxide Tester
Carbon dioxide analyzer for the primary and secondary schools to carry out extra-curricular activities of environmental monitoring teaching equipment, but also for food, vegetables, fresh and dried fruits, herbs, tobacco and other atmosphere storage and preservation work to determine. Industrial: environmental protection, chemical industry, power plants, smelting, boilers, kiln exhaust gas and other determination. The instrument is a small portable low-power products. The CO2 content in the mixed gas can be measured quickly, and the new CO2 dual sensor is used in the measurement part, which improves the test precision. With bright digital tube display, intuitive clear readings.
1, small size, light weight, easy to carry
2, the use of highlighted digital tube display, low power consumption, easy to read.
1, the working power: DC 12V AC 220V
2, the ambient temperature: 5 ~ 40 ° C
3, relative humidity: 35 ~ 85% RH
4, Weight: 1.4 Kg
5, power consumption: ≤ 0.7W.
6, measuring range: measuring range 0 ~ 99.9%.
7, the response time: <40 seconds (90% of full scale).
8, the display accuracy: 0 ~ 50.0% ≤ ± 3.0% ± 1 words, 50.0 ~ 99.9% ≤ ± 5.0% ± 1 words.
Teaching Instrument Manufacturer ---- Ningbo Kaidi Science Instrument Co., Ltd