Soil measuring instrument

Soil measuring instrument/Soil nutrient analyzer/soil fertilizer analyzer/soil formula fertilizer analyzer Model: H09346

Function Introduction:
Soil measuring instrument*NationwideThe design of the integrated aluminum alloy chassis/medicine cabinet is easy to carry, sturdy and durable.
*It can detect the content of available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, and organic matter in soil, fertilizers, organic fertilizers, and plants, as well as soil acidity and alkalinity (qualitative). It can calculate the recommended fertilizer application amount for 70 national agricultural, fruit tree, and economic crop target yields.
*Digitized circuits and programmed design reduce operator errors and labor intensity.
*The cassette part adopts a five channel, dual optical path, and serial structure design, with no mechanical displacement or wear. The optical path testing positioning is precise, ensuring the accuracy of the measurement results.
*Using high brightness LED lights as the light source and silicon semiconductors as the signal receiving system, the lifespan can reach up to 100000 hours. The light source is stable and has good consistency.
*Adopting LCD Chinese large screen display, Chinese menu prompts for operation, guiding the operation process.
*Equipped with an embedded micro printer with printing function.
*The power supply adopts a single hole independent socket, which can be connected to 220V AC power, car cigarette lighter power supply, solar power supply or any other 7.5V-35V DC power supply.
Technical parameters:
1. Nutrient measurement technology parameters:
(1) Stability: A value (absorbance) drifts less than 0.003 within three minutes
(2) Repeatability: A value (absorbance) less than 0.005
(3) Linear error: less than 3.0%
(4) Sensitivity: Red light ≥ 4.5 × 10-5; Blue light ≥ 3.17 × 10-3
(5) Wavelength range: Red light 620 ± 4nm; Blue light 440 ± 4nm (6) Seismic resistance: Qualified
(Note: The above technical parameters are all higher than the national standards)

2.Temperature and humidity illuminance recorder/light illuminance recorder model: H09345

Temperature, humidity, and illuminance recorder
Temperature range: -40~100 ℃ Accuracy: ± 0.2~0.5 ℃
Humidity range: 0-100% RH Accuracy: ± 2-3% RH
Illumination range: 0-200000 LUX accuracy: ± 4%
minute distinguish Rate: Temperature: 0.1 ℃ Illumination: 10LUX Humidity: 0.1% RH
biography feel Device: Temperature: NTC Illumination: Imported from abroad Light Sensor Humidity: Honeywell
Recording capacity: capable of automatically recording 11000 to 22000 sets of data
Start mode: immediate start/timed start/manual start
Stop mode: full storage stop/first in first out/timed stop/manual stop
Battery: Built in high-energy lithium battery with a lifespan of over one year
Communication interface: USB communication
Key function: with turn on key: can manually start or stop recording according to customer needs
With view button: You can view the maximum, minimum, and average values of recorded data at any time
Alarm prompt: Over limit alarm, LCD "AL" prompt
Battery prompt: When the battery level is low, there is a battery symbol prompt. Please replace the battery in a timely manner.
Instrument size: 87 * 54 * 30MM (the same size as a bank card, convenient to carry)
Shell color: gray white

H09345 Temperature, Humidity, and Illumination Recorder Features:
1. Track and record temperature, humidity, and illuminance data throughout the entire process, with a long recording time (recording data every 15 minutes, which can last up to 10 months or even longer).
2. The whole machine has low power consumption and is powered by a lithium battery (built-in), with a battery life of over one year.
3: Choose an illuminance sensor for more accurate measurement;
4. The recorded illuminance data cannot be modified and can provide strong investigation data when problems arise in experiments, research, and other aspects.
5. The software has two versions, Chinese and English, which can be chosen freely. The English version has international universality.
6. Software features *, easy to view data.
7. Additional data stitching software can be provided to connect each downloaded data curve into a complete curve.
8. The recording time interval can be set arbitrarily from 2 seconds to 24 hours.
9. Small size, easy operation, and reliable performance.

Random attachments: sensors, application software, certificate of conformity, warranty card, instruction manual, spare battery, etc

3.Circulating Water Vacuum Pump/Circulating Water Multipurpose Vacuum Pump/Circulating Water Vacuum Pump Model:H09343

One Function and purpose
This product is a new type of multi-purpose vacuum pump designed using circulating water as the working fluid and utilizing the principle of negative pressure generated by jet flow. The pump is divided into two types: stainless steel pump and plastic pump Provide vacuum conditions for chemical laboratories and be able to supply circulating cooling water to reaction equipment Widely used in evaporation, distillation, crystallization, filtration, sublimation and other operations It is an ideal equipment for laboratories in colleges, medical chemistry, food processing and other fields
II Product Features
1. The water-saving effect is significant Due to the use of water circulation operation, the water added to the water tank can be reused in a circular manner, overcoming the phenomenon of a large amount of water waste when obtaining vacuum by directly flushing tap water Through actual testing, it has been found that using this product can save more than 8 tons of water under the same vacuum conditions, calculated as continuous operation for one working day. Moreover, adding water once can be used for a long time, which is particularly suitable for laboratories with insufficient water sources or water pressure
2. Multi functional comprehensive use In addition to providing vacuum conditions, this machine can also automatically circulate water to provide circulating cooling water for the reaction device This machine is connected to a self supplied water source, and by injecting an appropriate amount of water into the source, the temperature of the circulating water can be maintained unchanged during long-term continuous operation, ensuring that the vacuum degree does not decrease and achieving the supply of circulating cooling water
3. Novel design and easy to use The pump head of this machine is directly immersed in water without a water kettle. The overall height of the machine is low, the volume is small, the weight is light, and it is easy to move. It can be placed on a workbench for easy operation and observation The top cover of the water tank is a movable installation that can be opened for easy water filling and maintenance
4. The machine is equipped with two exhaust nozzles, which can be operated separately or simultaneously. Each exhaust nozzle is equipped with an exhaust gauge, which can easily observe the vacuum degree A check valve is installed on the vacuum extraction path to prevent circulating water from flowing back into the equipment being evacuated when the vacuum extraction operation is stopped
5. Corrosion resistant and pollution-free The water pump components of this machine are made of stainless steel, and the water tank is made of ABS plastic. The one-time molding is not affected by corrosive substances such as acid and alkali, and there is also no laboratory pollution such as oil stains
6. The machine works stably and reliably with low noise
III technical indicators
Vacuum degree: -0.098mpa (circulating water temperature 0~25 degrees) Pump displacement: 60L/min
Single nozzle pumping rate: 10L/min Motor power: 180W
Working voltage:~220V+10% 50HZ Water tank capacity: 15L
Noise:<45DB Head: 8 meters
Self weight: 15kg
4 Usage
1. Preparation work Place the machine flat on the workbench. When using, open the top cover of the water tank and inject clean cold water (or add water through a drain hose). Stop adding water when the water level is about to rise to the height of the overflow nozzle behind the water tank. Repeat the startup to no longer add water
`2. Vacuum pumping operation Tightly connect the suction sleeve of the equipment that needs to be evacuated to the suction nozzle of this machine, check the shape of the circulating water, and turn off the switch Connect the power switch to start the vacuum pumping operation. The vacuum degree can be observed through the vacuum gauge corresponding to the vacuum nozzle
When the machine needs to operate continuously for a long time, the water temperature in the water tank will rise, affecting the vacuum degree At this point, the water discharge hose can be connected to the water source (tap water), and the overflow nozzle can be used as the drainage outlet. By controlling the flow rate of tap water appropriately, the water temperature in the water tank can be maintained and the vacuum degree can be stabilized
When it is necessary to provide secondary cooling circulating water for the reaction device, based on the third operation above, connect the inlet and outlet pipes of the device that needs to be cooled to the circulating water pressure nozzle at the rear of the machine. Turn on the circulating water switch on the inlet nozzle to achieve the supply of circulating cooling water
Five Common faults and troubleshooting methods
（1） Low vacuum degree:
1. There are foreign objects inside the vacuum bottle, clean them up
2. If the thread at the connection between the two sections of the vacuum bottle is loose, tighten it by hand
3. There are foreign objects inside the check valve, remove and clean them
4. The inlet under the pump head is blocked, just clean it up
（2） Vacuum gauge not moving or jumping:
1. The vacuum gauge does not move, which may be caused by the blockage of the rear air hole of the vacuum gauge. Remove the vacuum gauge and clean it
2. If the needle jumps, it indicates that the check valve or vacuum bottle is leaking air. The check valve should be cleaned and the screw thread at the connection between the two sections of the vacuum bottle should be tightened
（3） Abnormal motor startup
1. The motor does not start, which may be caused by the power not being connected or the fuse wire being disconnected
After the motor is connected, if it makes a buzzing sound and does not start, the power should be immediately cut off, and then the fan inside the motor cover should be manually turned a few times
（4） Attention:
Do not let the pump head idle for a long time away from the water to avoid wear on the mechanical seal. The motor should be well grounded, and the circulating water should be kept clean to prevent blockage of the vacuum pump

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4.Constant temperature electric heating plate/Constant temperature electric heating plate/Electric heating plate model:H09341

Usage Overview:This product is suitable for heating and chemical analysis of samples in departments such as agriculture, forestry, environmental protection, geology and petroleum, chemical industry, food, as well as higher education institutions and research units for digestion, drying, and other treatments.
Product Features:
▲ Made of cast aluminum, with good thermal conductivity, high temperature uniformity, large heating area, fast heating rate, and conducive to sample heating.
The heating element adopts advanced technology of one-time casting of high-quality stainless steel heating tubes and plates, which has energy-saving, high efficiency, uniform heating, long service life, safety and reliability.
The temperature control system adopts a microcomputer chip processor, LCD display instrument, with PID regulation characteristics, time setting, temperature correction, over temperature alarm, and other functions, with high temperature control accuracy and strong functionality.
According to user needs, RS-485/232 interface and 485 interface: 800 can be added before ordering

5.Automatic electric distilled water machine/electric distilled water machine/distilled water machine model:H09340

Usage Overview:This product purifies general domestic water through boiling and distillation, improving the quality of drinking water for residents. It is also suitable for laboratory use with low water output
Product Features:
The whole machine is made of imported high-quality stainless steel.
▲ It has the functions of water shortage and power outage, automatic water replenishment, and automatic shutdown after filling distilled water.
▲ Adopting advanced air cooling system. No need for circulating water cooling, energy-saving and environmentally friendly.
▲ Imported energy-saving motors have low noise.

The above parameter information corresponds to the image