ATEX dust detector

for monitoring of damage to dust extraction units

The ATEX dust meter is designed for use in harsh industrial environments (including explosive atmospheres) to monitor dust levels in ducts and pipelines. It is most often installed on the clean side of the filters and is used to monitor the correct functioning of the dust extraction units. This allows damage to the filter bags to be detected immediately.

The probe is placed directly at the measuring point, and the automatic set-up of the dust meter takes a maximum of eight minutes, making the device virtually maintenance-free and low-cost to operate afterwards.

Parameters of the dust meter

The ATEX Snifter A2 dust meter has sufficient sensitivity to cope with the monitoring of low dust concentration levels resulting from the use of modern fabric filters in dust collectors. The stainless steel probe and cast aluminium housing mean that the monitor will operate continuously with minimum maintenance, withstanding vibration from the process and the deposition of dust on the probe.

Measurement	Total suspended particles
Measurement principle	Inductive electrification
Range	Detection limit from 0-10 mg/m3 to 0-7 g/m3 (depending on the type of dust)
Serial communication	RS485, USB, and optionally wireless communication
Communication protocols	Modbus RTU (RS-485) Sintrol network (USB, wireless, RS-485)
Output signals	Two independent outputs for signaling exceeding set levels: alert and alarm.
Power supply	12 - 24VDC
Protection degree	IP 65
Temperature	Environment: from -40°C to +60°C Process: max. 250°C
Airflow speed in the duct	min. 3 m/s
Pressure	max. 200 kPa
Humidity	max. 95% relative humidity (without condensation)
Management and configuration software	DustLog 8 allows for immediate sensor configuration and examines dust level trends

Dimensions

Key features

Instant calibration

You only need about 8 minutes to have each of the dust meters ready to go, all thanks to automatic configuration and calibration.

Robust design

Robust aluminium die-cast housing with IP65 protection

A proven method of measurement

The reliable method based on inductive electrification provides an extremely wide measurement range with a detection limit of 0.01 mg/m³

Maintenance Department Optimisation

With the software, you can manage the sensors and analyse dust trends, thus optimising the frequency of dedusting equipment maintenance.

ATEX version

The Ex model in the is suitable for zone 20, 21 or 22 inside the duct and zone 21 or 22 outside the duct.

Skonfiguruj własne rozwiązanie.

The use of dust measurement and monitoring
in the filtration and dedusting process

Dust sensors monitor the condition of the filters

You will immediately detect filter bag damage or leaks, and in the long term you will optimise the maintenance frequency.

With Ex-rated dust meters, you minimise the risk of explosion

You act preventively and prevent an explosive atmosphere from forming on the clean side of the filters.

You monitor the quality of the air flowing into workplaces

You take care that dust extraction really does its job and provides employees with safe working conditions.

Reliable method for monitoring dust concentration: inductive electrification

The principle of dust measurement is extremely simple, which only enhances the sensitivity of the device providing high measurement accuracy. The most important part of the dust meter is the probe which is placed inside the duct, perpendicular to the air flow. When dust particles moving inside the channel pass or hit the sensor probe, a signal is induced. It is then transmitted to the monitoring system, for example to a computer with monitoring software. In addition to its high sensitivity, this technology also minimises the impact of sensor contamination, process temperature variations and flow velocity on measurement results. Inductive electrification technology enables a detection limit of just 0.01 mg/m3 to be reached.

8 minutes

that is all it takes to automatically set up the dust meter.

Instant, simple and user-friendly configuration is one of the meter’s many advantages. During the automatic configuration procedure under normal process conditions, the dust monitor automatically adapts to the process conditions and sets the measuring range and alarms accordingly. Under normal conditions, the unit will light up green and the mA output will be set to 5% of the range.

The unit can be installed in the contaminated air ducting to the filter as well as in the ducts on the clean side of the dust extraction unit. In both cases, no manual range configuration is required.

The baseline thus determined is always stored in the device’s memory. Then, using a switch mounted in the unit, you can very quickly set one of the three sensor response modes. When the response mode is changed, the device applies the appropriate multipliers to the baseline and automatically adjusts the ALARM and ALERT threshold parameters. All device parameters can also be adjusted manually in the DustTool software.