Gamma lab Nitrogen Generator is suitable for lab use, it makes use of pressure swing adsorption technology, separating and collecting nitrogen from air. It is easy to operate, plug and play, one simple push on starting button, nitrogen generator begin to work.
Laboratory Nitrogen Generator is one kind of Cabinet Nitrogen Generator. Its size is within 850 x 920 x 1100 mm, weight within 155 kg. Its details are as below:
2 Detailed technical specification
2.1 Compressed air consumption
The generator consumes a maximum of 115 slpm of compressed air to generate the required N2 flow. Air source is not included in this product.
2.2. Air supply pressure
Minimum air supply pressure shall be externally regulated to 600 kPa.
2.3. Air quality
This Generator is provided with one full set of FESTO filters, the air supplied to the Generator still need to be dry and oil-free.
2.4. N2 output
2.4.1. Quantity of N2 generate: the generator is capable of deliver 25 slpm nitrogen.
2.4.2. Delivery pressure: the generator delivers N2 at a pressure greater than 450 kPa.
2.4.3. O2 contamination level: O2 level in the N2 stream is not exceed 0.5%, and does not vary from peak to trough by more than 5% of the absolute concentration.
2.5 Dimensions
With package, the Generator size: 850 mm (Length)x 920 mm (width)x 1100 mm(height).
2.6 Weight
With package, the Generator weight is not more than 155 kg.
2.7 Wheels
The Generator is fitted with 2 fixed wheels at the rear and 2 swivel wheels with brakes at the front
2.8 Connection to power supply
The Generator has a panel mounted connector on the rear panel
• Current capacity at maximum temperature 2.5A<Imax<3.5A ( the power supply is capable of supplying 2.5A nominal)
• Jack plug, 5.5 x 2.5 x 9.5 mm, positive on the centre pin
• Maximum operating voltage at maximum temperature 30VDC.
• Minimum number of insertions/extractions while maintaining contact resistance specification AND without mechanical failure: > 5000
• Maximum contact resistance after specified minimum insertions: 30milliohms maximum
• Insulation resistance: min 100MegaOhms after environmental and durability tests
• Dielectric withstand Voltage : Min 500V for 60s
• Operating temperature range: -20 deg C to +70 deg C
2.9 Indicator
The Generator has a pushbutton illuminated switch on the front panel
• Button to be flush mounting or recessed into a bezel to avoid damage
• High corrosion resistance, either plastic or stainless steel body
• No symbol on button
• Size of button and bezel to be ~ 22mm to 30mm
• Mechanical Endurance : > 1000000 activations without mechanical failure
• Electrical Endurance : > 100000 cycles at maximum current and maintaining maximum specified contact resistance• Action mechanism : push on – push off
• Current handling capability : 4A DC min break, 4A DC min Make, inductive load (double the maximum expected current demand to give good lifetime)
• Maximum DC Working voltage : at least 40V DC
• Illumination type and color : LED, green
• Illumination Operating voltage: 24VDC
• Operating Temperature Range: -20deg C to +70 degC
• Terminal type : either screw terminal or 6.5mm spade type terminals
2.10. Solenoids
The solenoids on the gas control valves is 24 VDC.
2.11. Operation
2.11.1. Operating cycle
A typical operating cycle for the Generator is 1 start per day and then run for 8 hours per day, which is equivalent to 2000 hours of operation per year. Depending upon the particular site, operating time could be anywhere between 0 and 24 hours per day.
2.11.2. Operation at shutdown
When the power is turned off, the pressure vessels is maintained in the pressurized state by closing the two exhaust valves.
2.12. Start up
2.12.1. Start up time
Start up times means the time from start up to producing qualified nitrogen.
The time to complete start up is less than 15 minutes.
2.13. Gas connections
The two external gas connections on the Generator, Air In and N2 Out, are constructed from brass and are to suit ¼" (6.35 mm) OD tubing. There are labeling in English next to these connections, [Air In" and [N2 Out", as part of the rating label.
2.14. Environmental requirements
2.14.1. Operating temperatures
The Generator is normally operated within performance specification over the temperature range:
10ºC - 35ºC from 0 – 3000 m, and 10ºC - 25ºC from 3000 – 4500 m
The Generator can operate safely over the temperature range:
5ºC - 35ºC from 0 – 3000 m, and 5ºC - 25ºC from 3000 – 4500 m
2.14.2. Noise level requirements
Noise level from the Generator is less than 72dBa at 1m distance. This is achieved by fitting silencers on the exhaust vents.
2.15. Life Requirements
The Generator can operate with a mean time between failure of 5 years minimum.
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The "Measurement Law" stipulates that before installation and use of the "Civil Four Meters" used for trade settlement, the statutory metrology verification agency must carry out the first compulsory verification, that is, the first inspection of the "Civil Four Meters". Any entity or individual may not use the product if it fails to apply for verification or fails to pass the inspection.
No matter whether it is in use or in the process of use, it is necessary to verify the measuring instruments. It is stipulated in the article that the measuring instruments shall be inspected every three years to ensure the normal operation of the measuring instruments and safeguard the immediate interests of the people. Let's take a look at the process and results of some verification work in various places. Since the beginning of this year, the Ganzhou City Quality Inspection Institute of Shanxi Province has closely followed the tenet of “serving economy and promoting developmentâ€, and the inspection work has been steadily progressing, especially with respect to measurement and testing. The civil three-table verification work tends to be better. The electricity meter, natural gas meter, and heat energy meter have completed 8170 verifications so far.
The Quality Supervision Bureau of Wuqia County, Xinjiang, went deep into the residential quarters and actively carried out special supervision and inspection of the “Four Civilian Meters†measurement. The Quality Supervision Bureau of Wuqia County in Xinjiang focuses on whether the water meters, energy meters, gas meters, and heat energy meters installed in the homes of households have been certified for inspection, whether there are any unqualified first-time tests, or if they are unqualified for the first time. The use of the "Four Meters for Civilian Use" to conduct censorship and other illegal activities was supervised and inspected. At the same time, Wucha County Bureau of Quality Supervision established a long-term supervision mechanism for this supervision and inspection work, promptly accepted complaints and complaints from the public on the “four tables for civil useâ€, mediated measurement disputes, and effectively safeguarded the legitimate interests of consumers.
Taiyuan will carry out special supervision and inspection of civil four-meter (water meter, electric energy meter, gas meter, and heat meter) metering, focusing on checking whether there is any illegal act of installing and using without initial verification, or if the first verification fails. Measure cheating and other illegal activities. Through this special measurement inspection, we will further understand the current situation of the use and management of the civil four tables, strengthen the measurement supervision, and focus on investigating and punishing illegal installations that have not been authorized for the installation and use of measurement technology agencies without authorization, and strive to make The public has significantly improved the first-class inspection rate of the four tables to ensure the accurate measurement of the civil four tables and safeguard the legitimate rights and interests of the general public.
Through the verification of the civil four tables, the supervision of water meters, electric energy meters, gas meters, and heat meters was strengthened to prevent illegal acts, ensure the accurate measurement of measuring instruments, and safeguard the vital interests of the people.
Four-City Examination for Civil Use Strengthens Four-Table Supervision
[China Instrument Network Industry Focus] Water meters, electricity meters, gas meters, and heat meters are the most common and widely used measuring instruments in social production and people's lives. They are collectively referred to as "four tables for civilian use." However, it is necessary to pass a verification before using the “Four Tables†to ensure that they meet the requirements and that the measurement is accurate and reliable.