Hotspot

checks the surface temperature of the processed material.

Particularly plants that are at risk of explosive dust must frequently be provided with explosion protection measures, as ignition sources are often unavoidable. In addition to electrostatic phenomena and mechanically generated functions, the most frequent ignition sources particularly include glowing embers, open flames and hot surfaces. Alongside grounding monitoring systems and spark extinguishing systems, the Hotspot detector series make an enormous contribution to increasing explosion safety. The Hotspot series have been developed for the early identification of combustion reactions and thermal events, which can ultimately be ignition sources for explosions.

Application

The Hotspot thermographic detector is specifically tailored for the early detection of hot surfaces and fire in dust-handling equipment, such as silos, dryers, mills, conveyors or dust collectors.

Cable

Junction box

Advantages

Explosion prevention with early detection of smouldering and developing fires.
Highest moisture and dust resistance with unique diffusion filter technology.
Comprehensive explosion safety concepts through the integration of the detectors into the REMBE^® EXKOP^® Express control system.

Mechanism

Hotspots are freely parametrisable infrared camera systems in the form of detectors with integrated signal evaluation. In addition to process monitoring, they are also particularly suitable for the detection of overheating plant components and glowing embers.

Technical data

Mechanical properties

Housing	Coated die-cast aluminium (corrosion-resistant)
Weight	0.6 kg (without power cable)
Protection class	IP 64
Explosion safety	Ex ta IIIC 105 °C Da (approval in accordance with ATEX and IECEx)

Thermal properties

Relative humidity	0 to 99 % relative humidity (non-condensing)
Temperature	-20 to +50 °C

Detection properties

Sensor resolution	32 x 31 Pixel
Viewing angle	53° x 52°
Reaction time	1 s
Time resolution	0.1 s or 1 s (depending on the configuration)

Technical data

Electrical properties

Voltage supply	20 to 40 V DC
Power consumption	10 VA
Internal fuse protection	750 mA
M-Bus Max. line length	≈ 2 km
M-Bus Max. line capacity	≈ 200 nF
M-Bus Baud rate	4800 baud
Limit value contact alarm relay	680 Ω , 20 mA max. (Alarm closer)
Limit value contact fault relay	0 Ω, 40 V or 20 mA max. (Fault opener)

Sealing air

Purity classes	Dust ≥ 2 — Water content ≥ 3 — Oil content ≥ 2
Airflow rate	200 to 300 l/h (poss. test necessary)

Applications + Industries

aerospace
animal feed productions
autoclaves
condensers
desalination plants
dual-fuel engines
elevators
flare stacks
food
LNG
mills and grinding plants
reactors
reverse osmosis systems
separators
silo
water injection pumps

Downloads

Productinformation Hotspot

Certifications

ATEX

IECEx

In contrast to conventional fire detection systems, the selection and positioning of special fire detectors is a particular challenge for industrial environments. The arrangement and alignment of the detectors should therefore be exclusively specified by specialist planners.

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Your contact person

I will be happy to advise you about the most suitable Protection systems for your plant. Individually, in detail and taking all relevant parameters into account.

Alexander Kemmling | Sales Executive Explosion Prevention

+49 2961 7405-189

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