1、 Overview

The JPA-3L low-noise purified air source has the advantages of stable output pressure, low noise, and strong purification ability, making it an ideal air source to replace high-pressure air cylinders. This product can not only meet the needs of various models of domestic and imported gas chromatographs and various analytical laboratories, but also serve as an air source for high-purity nitrogen generators.

2、 Instrument features

1. Replace high-pressure steel cylinders and instrumentalize laboratory gas sources;

2. Small size, light weight, reasonable structure, simple operation, and convenient use;

3. Low vibration, low noise, stable output pressure, and air pressure fluctuation not exceeding ± 0.005Mpa;

4. Safe and reliable, equipped with secondary protection devices for overvoltage and overcurrent;

5. Long service life, can be used continuously or intermittently, with stable performance.

3、 Comprehensive parameters

1. Air purity; Dry and oil-free;

2. Output flow rate: 0-4000mL/min;

3. Output pressure: 0.3Mpa;

4. Work noise:<30 decibels;

5. Dimensions: 415 (L) × 200 (W) × 370 (H) (Unit: mm）

6. Application environment

Environmental temperature: 10-40 ℃;

Relative humidity: not exceeding 85%;

Supply voltage: 220 ± 22V;

Power supply frequency: 50 ± 0.5H2

Maximum power consumption: 150W;

7. Instrument weight: approximately 18Kg.

4、 Power on preparation

1. Open box inspection

a、 After unpacking, check and inspect according to the packing list;

b、 Check the appearance of the instrument for any damage caused by transportation;

c、 If any abnormal phenomena are found after opening the box, please contact the manufacturer in a timely manner for timely resolution.

2. Power on preparation

a、 The power switch of the instrument is in the off state;

b、 Before connecting the instrument power supply, please check if the voltage range of the power supply is correct and has a reliable grounding;

c、 Connect the power plug properly.

3. Power on inspection

a、 Turn on the power switch of the instrument, observe whether the instrument is started (there should be slight vibration when touching the chassis with hands after the instrument is started), observe whether there is any abnormal sound during the operation of the instrument, and if any abnormal situation is found, please turn off the machine in a timely manner;

b、 After the instrument is working normally, loosen the sealing nut of the "air outlet" and observe whether there is any gas flowing out;

c、 After all the above items are normal, seal the "air outlet" with a nut;

d、 Restart the instrument, and after about 1.5 to 2 minutes of startup, the instrument enters the pressure automatic control state (factory set shutdown 0.8Mpa, startup 0.5Mpa). After the instrument automatically shuts down, observe that the high-pressure gauge should reach the set pressure, and the output pressure gauge should output 0.3Mpa;

e、 After the instrument is turned on normally, turn off the power switch, remove the sealing nut of the "air outlet", and connect the gas output port to the air inlet of the gas instrument through a pipeline.

5、 Operation method

1. Connect the power and the instrument starts working;

2. The factory set output pressure of the instrument is 0.3Mpa

3. After using the instrument, turn off the power of the instrument.

6、 Precautions

1. The instrument should be placed steadily and not tilted to prevent liquid leakage inside the compressor;

2. After the instrument has been working continuously for a period of time, it is necessary to check whether the color changing silicone gel inside the drying room has changed from blue to pink or white. If it has changed color, it should be replaced in a timely manner,(Note: The replacement of silicone gel should be carried out in a pressure free state of the instrument.) After replacing the silicone gel, the airtightness of the drying tube should be checked in a timely manner (with the principle of no air leakage);

3. The oil purifier is filled with activated carbon filter material, which should be replaced after 300 hours of use of the instrument (note: the replacement of activated carbon should be carried out when the instrument is under no pressure). After replacement, the airtightness of the drying tube should be checked in a timely manner (with the principle of no air leakage);

4. Method for eliminating liquid accumulation in gas storage tanks

a、 Drainage should be carried out when the instrument is under pressure;

b、 Do not drain during sample analysis.

Drainage method: Pull out the drainage pipe and press down

After the drainage switch button, the air inside the air storage pipe is compressed

The compressed water generated during the process is automatically discharged. When the climate is humid, there is a lot of compressed water, and the liquid should be drained after about a week of use. At the same time, use a container to collect the liquid, and release the drain button after the residual liquid is drained to avoid air leakage.

pay attention to

Users should follow the operating instructions, regularly maintain the instrument, and not disassemble the instrument and its components at will. If any abnormal situations or instrument malfunctions are found, they should promptly contact the manufacturer.

7、 Maintenance and upkeep

1. Replacement of color changing silicone gel

Rotate counterclockwise and remove the upper nut of the drying tube while ensuring that the instrument is in a pressure free state, and remove the lining tube of the dryer to replace the discolored silicone gel. Tighten the upper nut of the drying tube to ensure no air leakage, and do not tighten it too tightly to prevent damage to the sealing gasket.

2. Recycling and activation of color changing silicone gel: Put the expired color changing silicone gel into a high-temperature resistant open container, place it in a constant temperature drying oven, and keep the temperature at 100-120 ℃ for 2-3 hours until the silicone gel returns to blue. After natural cooling in the drying oven, put the silicone gel into a sealed container for later use;

be careful:

It is strictly prohibited to maintain the instrument under pressure, and it is even more forbidden to disassemble the instrument components while the instrument is under pressure to avoid damage or danger.

3. Activated carbon replacement

The replacement program is basically the same as the method of changing color silicone gel;

Leakage inspection method: Connect the instrument power supply, and when the output pressure starts to rise, apply soap foam to the threaded connection of the drying tube and the oil removal purification tube, and observe whether there are bubbles generated until the pressure reaches the set pressure. There should be no bubbles generated. If bubbles are generated, attention should be paid to first venting the instrument pressure from the "outlet", then re securing the leaking contact point, and repeatedly checking until there is no leakage in the instrument system.

8、 Fault handling

9、 Manufacturer's guarantee

Our company adheres to the principle of putting users first and will serve you wholeheartedly. Our company's product warranty period is one year, and during the warranty period, the product is covered by three guarantees (repair, replacement, and return) with lifelong maintenance services. If users encounter quality issues or need technical consultation during use, please contact our company directly.