D53s

DUST & SILICA MONITOR

ENVIRONMENTAL MONITORING
D-SERIES

OVERVIEW

The D53s is an industrial dust and silica monitor for respirable crystalline silica monitoring. It offers real-time measurements of PM1, PM2.5, PM4, and PM10 mass concentrations (mg/m³) in harsh environments such as mining, processing plants, and bulk material handling facilities.

Integrated gas sensors are used in combination with optical data for AI-driven classification of interfering sources such as smoke and organics—ensuring that only silica dust is identified and reported.

SENSING CAPABILITIES

MEASUREMENTS

PM1.0, PM2.5, PM4.0, PM10

GAS SENSORS

CO, CO₂, VOC, NOx, SO₂, O₂

AMBIENT CONDITIONS

UV-A, UV-B, UV-C, PAH, Humidity, Dew Point, Absolute Humidity, AQI, Barometric Pressure

WHY IS SILICA MONITORING IMPORTANT?

Silica dust is one of the most dangerous airborne particulates in mining and construction environments. Accurate detection is critical for worker safety and regulatory compliance.

ENVIRONMENTAL MONITORING

D-SERIES

SILICA & DUST MONITOR D53s

REAL-TIME RELIABLITY

Easy to read data readings and range limits displayed on a TFT display
Response time <60 secDetection limits (PM10) 0.01 to 1000mg/m3
Sensor range between 0.30µm to 10µm

ROBUST & RELIABLE

Configurable to activate automated ventilation or dust suppression system
Operating temperatures range from -20° to 50 °C

USER-FRIENDLY, LOW MAINTENANCE, EASY INSTALLATION

Up to 2 years between calibrations
Bump-test kit available
Low Maintenance and cleaning
Wireless connection
Site-specific interfacing and remote connections available
Self-cleaning/minimal maintenance: No pumps, no filters, and no user-serviceable parts.
Frequent blast action cleans dust from within the measurement chamber.
Easy to install (mobile/fixed). No on-site sensor calibration with installation

VISUAL ALERTS

Local visual indication via multi-colour LED status ring

AMBIENT CONDITIONS

Ambient Temperature
Humidity
Barometric Pressure
Air Quality Index (AQI)

PARTICULATES

PM1
PM2.5
PM4
PM10
Carbon Monoxide (CO)
Carbon Dioxide (CO2)
Elemental Carbon (EC)
Volatile organix compounrs (VOCs)
Sulphur Oxide (SOx)
Nitrogen Oxide (NOx)
Polycyclic Aromatic Hydrocarbons (PAH)
Laser-Induced Incadescence (LII)

COMMUNICATION INTERFACES & PROTOCOL OPTIONS

Standard: RS-485 with Modbus RTU
Optional: Ethernet with PoE (IEEE 802.3) and Modbus TCP/IP
Wireless options: M3SH Private 5G
System integration: Suitable for PLC, SCADA, fire alarm, suppression and site-wide monitoring systems

MODELS

Intrinsic safe—Operating voltage: 9-48 VDC or 85-265 VAC
Non-Intrinsic safe—Operating voltage range 9-18VDC powered from an intrinsic safe power supply

Built-in heated chamber for enhanced performance in various conditions.

STANDARD CERTIFICATIONS
- SANS 60079-0: 2019 – General Requirements for Equipment for Explosive Atmospheres
- ISO 13849-1:2015 – Safety of Machinery – Functional Safety
- IEC 61508 – Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems
- Certified for Group II (Surface Applications)
- Certification Number: MASC M/26-8198X
- Ingress Protection: IP65
ADDITIONAL CERTIFICATIONS

Available on request for specific hazardous area applications:
- SANS 60079-11: 2024 – Intrinsic Safety “i”
- Explosion Protection Marking: Ex ia I Ma (-20°C to +55°C)
- Certified for Group I: Underground Mines including coal