Metal Lab 75/80 Precision Vacuum Spark Direct Reading Spectrometer

1、 Instrument Introduction

The Metal Lab 75/80 precision vacuum spark direct reading spectrometer is a high-precision measuring instrument for analyzing the composition of metal materials. It can quickly and accurately detect the content of various elements in metals and is widely used in metallurgy, casting, machinery, metal processing and other fields. Widely used in China, it is a very classic instrument of GNR Instrument Company.

2、 Main features

1TheMetal-LabThe focal length of the spectrometer's light chamber is750mmFloor standing spectrometer, not500mmThis desktop spectrometer has higher resolution and good stability in analysis, especially when analyzing pure metals such as oxygen free copper, which can better reflect its properties.

2TheMetal-LabThe spectrometer is a vacuum chamber and is continuously evacuated, which can maintain a constant vacuum and make spectral analysis more stable. Under continuous vacuum pumping, the lifespan of the vacuum pump shall not be less than that of the spectrometer.

In addition, the maintenance cost of a vacuum chamber is lower than that of a nitrogen filled chamber, and there is no need to regularly replace the nitrogen gas. Simply add pump oil every once in a while.

3Multi functional spark table:

（1）The spark table adopts an internal heating constant temperature system, which eliminates errors caused by sample temperature changes during analysis and avoids the risk of damage to the circuit board due to water ingress caused by the use of external cooling water.

（2）When analyzing different substrates, there is no need to replace the spark table (such as analyzing copper immediately after analyzing steel), making it more convenient to use.

（3）The thick steel plate used for the spark table (approximately)2By using centimeter thick steel instead of thin steel plates, the deformation of the spark table caused by long-term analysis is avoided, thereby avoiding the phenomenon of light leakage during analysis and making the analysis more stable.

4Obtain the European mobile stimulation system:

In addition to the commonly used fixed spark table excitation system, this instrument is also equipped with a mobile excitation system, mainly used for analyzing and detecting large samples that are difficult or cannot be cut. Fiber optic guided light for mobile excitation system, capable of analyzing distance spectrometer1.5mThe large block samples within are convenient, flexible, and easy to operate, combining the accuracy of large precision spectrometers with the mobility of mobile spectrometers. This not only ensures the accuracy and high precision of analysis results, but also has a certain range of mobility, allowing for accurate analysis of large block samples without damaging the samples. This technology has obtained European technological inventions,GNRThe company is currently a professional spectrometer company in the spectrometer market with this technology.

5The detector circuit is placed outside the vacuum chamber:

The circuit part of the photomultiplier detector is placed outside the vacuum chamber, which not only prevents the generation of glow due to high voltage in the light chamber, avoids the interference of glow on the detection spectral lines, but also avoids opening the light chamber when there is a problem with the detector circuit.

6Fiber optic transmission signal―――――Electromagnetic Interference Resistance

The transmission of signals and data between the spectrometer host and the computer uses optical fibers to avoid external electromagnetic interference during the transmission process, ensuring the normal transmission of data and signals and enhancing the overall electromagnetic interference resistance of the instrument.

7There are two levels of protection between the empty pump and the light chamber―――――Prevent oil backflow

There is a special device at the inlet of the vacuum pump and the vacuum outlet of the light chamber, which is used to prevent the vacuum oil from being sucked back and the oil vapor from diffusing into the optical system during normal operation in the event of sudden power failure. Ensure that the light chamber is free from contamination.

8Reasonable structural design―――――Easy for daily maintenance

The daily maintenance workload is very small, only occasionally wiping the lens is needed. There is a one-way isolation valve between the lens and the light chamber, allowing the lens cleaning work to be completed during the gap between two daily analysis tasks without damaging the vacuum.

9Low prices for spare parts and consumables―――――Low cost of use

The prices of spare parts and consumables are included in all spectrometers, and the after-sales service prices during the warranty period are also included.

2、 Technical parameters

1. Vacuum optical system

—Baxing—Runge frame method, grating focal length750mm

—Highly luminous holographic grating with engraved lines2400item/mmor3600item/mm

—Spectral line range:120 ~ 800nm

—Dispersion rateDispersion

First level dispersion rate:0.55nm/mm

Secondary dispersion rate:0.275nm/mm

—Resolution: superior to0.01nm

—Maximum detectable channels:60An additional optical system

— 240Optional spectral lines

2. spectral line

—Each spectral line to be tested corresponds to a slit

—Each channel includes:

An exit slit on the strip

High performance photomultiplier tube

A reflector (depending on)PMTThe location)

—High voltage adjustable photomultiplier tube

—According to the analysis requirements, the channels in an optical system can be increased to30a

3. Constant temperature control system

—The light room and electronic unit are equipped with a constant temperature system

—Temperature fluctuations are controlled within+/- 0.1℃

—The system avoids the impact of temperature fluctuations on instrument stability

4. Control and Data Acquisition Electronic Unit

— 16Position model/Digital conversion microprocessor

5. Spark excitation source

—The discharge parameters are password protected

—Spark source discharge is stable and not affected by fluctuations in the power supply system

—High energy pre spark technology, achieving600Hz

—Discharge parameters:

frequencyFrequency 20-600Hz

inductanceInductance 120uH

resistanceResistance 3.5Ohm

capacitanceCapacity 5uF

voltageVoltage 400V

6. Spark table

—The size of the spark table is100 X 80mmThe heaviest sample analyzed can reach25Kg

—Security protection equipment prevents unsafe triggering

—The spark table is easy to disassemble and clean

—The electrode is easy to replace and repair

7. vacuum system

—Vacuum is controlled by a vacuum pump and vacuum control equipment

8. analysis software

—Including calculations for different matrices and curves

The software allows the following operations:

Establish and modify analysis programs

Support daily operations using function keys

Output methods are optional (intensity, intensity ratio, uncorrected concentration, corrected concentration, etc.)

The concentration units for the analysis results are optional（ppm，%）

Can be standardized universally

Micro standardization

Correction of interference between elements

Automatic standardization

Can print more than100All results of secondary excitation and their mean, standard deviation, and relative standard deviation

At the same point, the excitation can be repeated one or more times, and the results of one or more excitations can be eliminated

According to the required standards（UNI，DIN，ASTMSelect the type of testing for alloys, etc

Standard material library

International Standard Library

Brand identification

supportCEquivalent or other set parameter calculation

Marking out of range elements

Automatically prompt recalibration based on analysis time or excitation frequency

Can perform statistical analysis and calculation

Can output results in different languages

Hard disk storage provides convenience for future research

Can connect to external computers or central systems

9. Computer and printer configuration

Reference configuration:

CPUPentium Core2、memory2GB

hard disk>160 GB 7.200turnTheDVD—CD-DVDRW-CDRW

monitorLCD 17”or19”LCD screen

Windows XPoperating system

Internetgraphics card, USBinterface…

Keyboard and Mouse

Printer: Color HPDeskjetPrinter, or equivalent product

10. Work environment:

—temperature range: 10 ~ 40℃
—Humidity environment: less than or equal to80%