SF6 LASERCHECK P3:FH

Description

The SF6 LASERCHECK P3:FH is ideal for laboratory settings containing fume hoods, such as university chemical labs and industrial labs. This device traces contained gas in the fume hood with world-leading ppb sensitivity and data logging according to ASHRAE 110-2016 / DIN EN 14175

Features

Ultra-high sensitivity with a detection limit of 6 ppb (0.006 ppm) with SF6 as a tracer gas

No radioactive source

Pure Argon not required

Introduction

Features

Ultra-high sensitivity with a detection limit of 6 ppb (0.006 ppm) with SF6 as a tracer gas
No radioactive source
Pure Argon not required
Measurement results independent of temperature and moisture
Permanent self-diagnostics
Fully automated measurement and data storage according to ASHRAE 110-2016 and DIN EN 14175
Portable with rugged case
No regular maintenance required

Application
Fume Hood tracer gas containment testing with world leading ppb sensitivity and data logging according to ASHRAE 110-2016 / DIN EN 14175

ULTRA-HIGH SENSITIVE Containment Test System.
SF6 LASERCHECK P3:FH is designed for tracer gas containment testing using SF6.

Its novel principle of measurement (patent pending) not only enables SF6 LASERCHECK P3:FH to determine very low gas concentrations, but also makes it suitable for use in any environment.

The fully automated measuring process eliminates any influences by the operator. SF6 LASERCHECK P3:FH thus continuously delivers high precision measurements.

Ist outstanding sensitivity makes SF6 LASERCHECK P3:FH capable of determining SF6 concentrations in the ppb range.

Ist permanent self diagnostic monitors all vital system parameters, ensuring continued precision of measurement.

Principle of Detection
SF6 LASERCHECK P3:FH uses an advanced principle of photoacoustic gas detection (patent pending), reaching a detection threshold as low as 6 ppb (parts per billion) at extremely low cross sensitivity and excellent long-term stability.

A gas sample is transferred into the instrument’s measuring chamber, where it is exposed to the pulsed beam of a wavelength-optimized CO2 laser.

The laser light is partially absorbed by the SF6 molecules, turning part of its energy into heat. Due to the pulsation of the beam, a cyclic expansion of the gas can be observed in the presence of SF6 molecules, which is detected as sound waves by highly sensitive microphones.

The intensity of these sound waves is in a fixed ratio with the SF6 concentration contained in the sample gas.

Unlike conventional absorption spectroscopy, the advanced principle used in SF6 LASERCHECK P3:FH makes it possible to determine, and compensate for, a beginning contamination of the internal measuring chamber.

This ability accounts for its excellent long- term stability of measurement.

System Characteristics
SF6 LASERCHECK P3:FH is composed of a base unit, comprising the measuring cell, laser, vacuum pump, and a controller.

A WIN PC (Win 7.8.20) running a custom control software serves as the man-machine interface. This software controls the measuring process, visualizes its results, and processes user inputs such as parameter settings. It also stores resulting data for evaluation.

Specifications
Detection Cell : Photoacoustic
Measuring range : 6 ppb ... 30 ppm SF6
Resolution : 1,5 ppb
Continous graph : 1 s resolution
Laser class : 1; no protective measures required
Self diagnostics : continuous
Temperature range : 15 °C ... 35 °C for operation,
0 °C ... 45 °C for storage
Dimensions : 670 x 300 x 600 mm
Weight : 35 kg