The Problem with Portable Gas Detectors

The Simple+ Gas Detector

Making sure your crew and your vessel are always safe from harmful gases is vital, so a portable gas detector is an important piece of equipment. However, there are many issues with the instruments that can cost you time and money if you don’t have the right kit.

Here are some of the problems – and the solutions offered by the MGC Simple+.

Battery life and charging


Traditional portable gas detectors have a pellistor/catalytic bead LEL sensor which uses a heated aluminium coil. It’s this element, in particular, that’s responsible for draining large amounts of power. Instead of the pellistor sensor, The MGC Simple+ uses a low-powered infrared light source which greatly reduces the drain on the battery – it’s like switching an incandescent light bulb for an energy efficient LED bulb.

The power saving is enough for the MGC Simple+ to last 3 years without charging. It works straight from the box and will easily allow for a bump test and a 1.5-minute alarm every day of its life.

Calibrating
Calibration and bump testing are crucial in traditional detectors because, over time, their performance becomes slower and gradually more unresponsive. This is down to the pellistor sensor which is susceptible to poisoning by many things, including the gases they are actually detecting. Once the sensor is no longer efficient, it needs to be replaced – a costly process which will leave your instrument out of action. You will also need extra equipment to cover gas detection while this work is being carried out.

Infrared sensors are completely immune to poisoning so this isn’t an issue with the Marine MGC Simple+ – there’s no need to calibrate at all.

However, some risk assessments and safe systems of work do specify that instruments must be calibrated. The MGC Simple+ can be set up to do this easily using one button operated dock which is capable of testing four detectors at the same time. This takes around 40 seconds and uses only around a quarter of the gas you need for individual calibration.

Working in inert environments

Pellistor sensors need a minimum of 10% oxygen in the environment – any lower and the readings may be inaccurate. Infrared doesn’t need oxygen, so the MGC Simple+ will work in completely inert atmospheres. This makes it ideal for confined space detection and taking samples from tanks where lack of oxygen is an issue.

Data Logging

Traditional portable gas detectors will log events, but many won’t log data. Data logging is important for all instruments as the gathering of information helps to improve safety and inform the investigation of incidents. The MGC Simple+ logs data every second and records the last 25 bumps, calibrations and events.

Repair Costs


As instruments get older, they begin to develop faults with their components – backlights, screens, sounders etc – they will all have to be repaired eventually. By the time a detector gets to three years old, most of the sensors will be reaching the end of their life and will need replacing.

The MGC Simple+ comes with a full three-year warranty, so you’ll never incur extra repair costs. At the end of those three years, you simply replace the whole instrument – a cheaper option than spending money maintaining an old detector. Buying a new instrument means you’ll also have a new three-year warranty so the instrument will always be covered.

The MGC Simple+ is the world’s first ‘NO calibration’ portable multi-gas detector.

NO calibration. NO charging. NO cost.

Contact us to find out more.