BGB’s portable leak detector is specifically designed for use with gas chromatography (GC) systems. It detects minute leaks of any gas with a thermal conductivity different from air. The reference gas inlet draws in ambient air for comparison to air drawn into the sample probe. The severity of a leak is indicated by both an LED light display and an audible alarm.
The leak detector measurement is based on thermal conductivity comparisons between the probe air and a reference air. The device employs a dual thermistor technology that measures the ratio of [probe]:[reference] heat exchange values and displays the results on an LED scale. Under ideal operating conditions, a ratio of 1:1 indicates identical air samples for both [probe] and [reference], and therefore, no leak is present.
Leak Detector Specifications:
| Detectable Gases: | Helium, Nitrogen, Argon, Carbon Dioxide, Hydrogen |
| Battery: | Rechargeable lithium ion internal battery pack (12 hours normal operation) |
| Operating Temperature Range: | 0–48 °C |
| Humidity Range: | 0–97% |
| Warranty: | One year |
| Certifications: | CE, Ex, Japan |
| Compliance: | WEEE, RoHS |
| Limits of Detection and Indicating LED Color: | |
| Helium, 1.0 x 10-5, red LED Hydrogen*, 1.0 x 10-5, red LED Nitrogen, 1.4 x 10-3, yellow LED Argon, 1.0 x 10-4, yellow LED Carbon Dioxide, 1.0 x 10-4, yellow LED Gas detection limits measured in atm cc/sec. |
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Read this articles to learn more about leak detection in GC:
Best Practice for Identifying Leaks in GC and GC/MS Systems published by Agilent Technologies, 2014
Guide to GC Column Selection and Optimizing Separations Published by Restek Corp. – see p. 11ff for information about unwanted results and possible solutions.
Leaks in a GC System published on Chromatography Today on February 26, 2014
Leak-Free GC By Ken Lynam, October 06, 2014, Lab Manager
