ATEX temperature switches: A complete portfolio

Before selecting a product from PVL's extensive range of temperature switches, it is vital that companies conduct
a risk assessment to see if they require a device that can work in explosive atmospheres.

More often than not, customers are fully aware of the presence of flammable mists, vapours and dust, but there are occasions
when working environments become explosive intermittently. Once an area has been identified as hazardous, it must be broken down into zones based on the likelihood that an ignition will cause an explosion.

The EU has set clear laws to ensure volatile atmospheres are suitably regulated and two important pieces of legislation - Directive 99/92/EC and Directive 94/9/EC - are designed to ensure workers are protected.

These regulations - which are otherwise known as the ATEX Workplace Directive and ATEX Environment Directive - have been applied to UK law via the Dangerous Substances and Explosive Atmospheres Regulations 2002 and the BIS Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 1996.

Companies that have already ascertained they need a device that can work in explosive environments must ensure they use ATEX-certified products. The aforementioned Directive 94/9/EC allows the free trade of ATEX-approved equipment within the EU by removing the need for further testing from individual member states.

All ATEX products supplied by PVL have been rigorously tested and certified by experts, who ensure that they will not produce a spark that could cause an explosion. ATEX-approved products take all forms and our team of in-house engineers can give you some handy tips on which devices will suit your business the best.

Exd flameproof temperature switches Exd (Flameproof)

If you need a Flameproof ATEX device, you have come to the right place. The FC ATEX Temperature Switch is used to detect limiting temperatures in hazardous areas and it is very popular due to its ability to deliver accurate results in the most volatile conditions.

Manufactured by Orion, it contains brass temperature bulb material and customers can opt for a version that is made from diecast aluminum or stainless steel.

The device has IP66 standard enclosure protection & good repeatability. As you would expect from such a durable switch, it can handle extreme temperatures. Its operating range is between 25ºC and 215ºC.

Exia Temperature Probes:

There are a number of products within our Exia Temperature Probe range and our engineers will be able to explain the subtle differences between each device.

Take the GTF-101-Ex Temperature Probe. Manufactured by Greisinger - which is part of the GHM Group - this product is commonly used in potentially explosive gaseous or dust mixtures.

Aside from being an ATEX-certified item, one of the most important features of this probe is its
flexibility. The probes are adjustable and can be customised to meet your specifications. It has a temperature measuring range between -200ºC and 100ºC.
Exia temperature probes
The potential-free temperature probe is made from stainless steel, ensuring durability and longevity. This is a mounting probe, but if you prefer a screw-in version that has very similar specifications, then the GTF-102-Ex Temperature Probe is a more suitable option. Alternatively, you might be better served with the GTF-103-Ex Temperature Probe, which comes with a DIN-B-head with clamp socket.

We also have a number of temperature sensors that carry the ATEX seal of approval.

Firstly, there is the TC296 Safety Thermocouple Sensor, which is manufactured by Martens - also part of the GHM Group. This product offers fast response times and is primarily used for water, oil and air applications. It comes with two thermocouples that can be isolated and can handle pressures up to 40 bar. The maximum operating temperature depends on the thermocouples.

If you need a product that works well with exhaust gas and air, the Safety RTD Sensor TR293 is worthy of consideration. This device has a maximum pressure threshold of 25 bar and has a temperature range of -100ºC to 600ºC. It comes with a BSZ (aluminum) terminal head with snap lid.

Another similar option is the Safety RTD Sensor TR296, which offers the same temperature range as the TR293, but has a higher maximum pressure of 40 bar.

ATEX temperature transmitter range ATEX Temperature Transmitters:

PVL has two ATEX Temperature Transmitters for you to choose from.

Firstly, we have the PMT50-2/-3 Temperature Transmitter With ATEX Option, another GHM Group-inspired product. This programmable universal transmitter operates with analog input signals and provides automatic fault detection in the measuring circuit.

It has an operating temperature between -10ºC and 55ºC and provides four alarm outputs, making it easy for users to monitor & control temperatures. The devoce also provides full three-port isolation.
Alternatively, you could opt for the MU500Ex ATEX Certified Temperature Transmitter. This device offers an intrinsically safe input and converts RTD sensor signals into industry-standard signals. It also has a full three-port isolation and has an operating temperature between -10ºC and 60ºC.

The product comes with a 22.5 mm case for DIN rail mounting and offers a two or three-wire connection.
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