LP1 laser photoacoustic spectroscopy gas analyzer

Overview 

LP1 laser photoacoustic spectrum gas analyzer integrates a semiconductor laser source with high precision and high selectivity tunable controllable spectrum, and a cantilever beam enhanced photoacoustic spectrum technology with wide dynamic range. The zero background noise technology provides high stability without repeated calibration for several months, which makes LP1 an ideal choice for the trace concentration measurement requirements of PPB and PPT.

High sensitivity and a variety of laser light source selection

The photoacoustic spectrum instrument works in an unresonant mode. The signals from two laser sources can be measured simultaneously by using different modulation modes. The resulting photoacoustic signal equivalent quantifies directly the concentrations of different measured gases in a photoacoustic sample chamber.

The modulation wavelength of the laser and the use of low voltage measurement make the analysis of different mixed gases have excellent selectivity. Based on this background noise signal minimization technique, the results of the measurement can be shifted slightly and the calibration period can be extended.

For each suitable laser source, LP1 can be equipped with a wide range of NIR near infrared semiconductor lasers ,and continuously increase the optional laser. Such as quantum cascade lasers (QCL), or near infrared optical parametric oscillators (IR OPO), Continuously increase the gas measurement range and enhance the excellent function of the instrument.

Features 

Configurable a variety of laser light according to the operation conditions.

Simultaneous analysis of multicomponent gases

Ppb level measurement

High selectivity

Low sample volume & wide dynamic range

Long calibration period

Free maintenance

Built-in 2 point sampling

Friendly calibration interface

Temperature and pressure fluctuation compensation

Multifunction analysis task

Operation interface pictorial

Results illustrated with pictures and texts

No consumables & no moving parts

Application

Gas impurities

Greenhouse gas (GHG)

Air quality

Occupational safety

Process control

Automated production

Refrigerant leakage

Exhale analysis

Security screening

Natural gas and synthetic gas

Soil analysis

Technology

Semiconductor laser based on photoacoustic spectrum with enhanced cantilever optical microphone

Sample chamber with constant temperature of 50℃

Patented ultra-sensitive optical microphone, based on MEMS cantilever sensor

19”3U industrial housing

Industrial computer with 5.7 "color display

Settable alarm limited detection for the analyzed gas

2GB built-in storage, sufficient for more than 1 year for continuous measurement at the shortest sampling interval.

Connect USB port, Ethernet network port and serial port through USB or PC for data transmission

Four gas inlets on the back of the instrument, two customizable as filter device and purification device

Automatically compensates for temperature and pressure fluctuations

Specification

Dimension : 48.4cm W x 13.9cm H x 44cm D (19,1in W x 5,5in H x 17.3in D)

Weight : approximately 13kg

Total sampling volume: 30ml

Pneumatic connection: 6/4mm tube

Electrical connections:

Input voltage: 100~240Vac, 50~60Hz

Input power: 100W

Communication interface: Ethernet,USB,RS232,RS485

Condition 

Operation condition:

Temperature: 0°C ~ +45°C

Humidity:<90% RH, no condensation

Pressure: atmospheric pressure

Protection grade: IP20 (IEC 529)

Storage condition:

Temperature range: -20°C ~ +60°C

Sampling condition:

Temperature : 0 ~ +49°C, no condensation

Pressure: 930mbar ~ 1100mbar

Flow rate: approximately 1L/min

Particle: < 1 μm

Features 

Response time: typical 5s, customizable

Limited detection : typical ppb level  customizable

Dynamic range: Typical 5 orders of magnitude

Repeatability:<1% measurement value

Accuracy : 2% measurement value

Temperature stability:  Automatic temperature compensation

Pressure stability: Automatic pressure compensation