instruments

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Portable Gas Detectors. The portable gas detectors supplied by AES can help you to detect toxic, flammable and combustible leaks, as well as monitor oxygen depletion. As they are 

completely portable, these natural gas detectors can be handheld, clipped onto a belt to ensure that your space is monitored appropriately.

Undertaking any excavation will inevitably bring site workers into close proximity to underground utilities (electricity, gas, telecommunications, water). Consideration should always be given to knowing the exact location of all buried utilities before and during the excavation process.

To safeguard against utility strikes, a cable locator is used for detecting the presence and proximity of buried utilities.

When an alternating current (AC) travels along a cable, an electromagnetic field is generated. The alternating current not only creates a magnetic field but also the oscillation of the current between positive and negative creates a frequency known as Hertz (Hz). The electromagnetic field generated by an AC current can be detected by a cable locator.

There are two main detection principles:

• Passive location – Used to locate an electromagnetic field already present on a utility
• Active location – Adds a specific signal using a signal transmitter onto a located utility