Personal Mercury Monitor : HERMES | 2.B Tech

The HERMES Personal Mercury Monitor™, also referred to as HERMES PMM™, is a compact mercury monitoring instrument designed for personal exposure assessment, workplace monitoring, industrial applications and remote atmospheric measurements.

Based on UV absorption at 254 nm, the HERMES provides real-time mercury measurements with integrated GPS logging, allowing mercury concentration data to be recorded continuously together with geographic location.

Its folded U-shaped optical path provides a 15 cm path length in a very compact format, enabling sensitive mercury detection while maintaining low power consumption for portable and field-based use.

Advantages

• Portable format: compact dimensions of 4.0 × 3.0 × 1.5 inches and a weight of 0.34 kg.
• Integrated GPS: mercury measurements can be logged with geographic location.
• High sensitivity: limit of detection of 0.2 µg/m³.
• Wide measurement range: linear dynamic range from 0 to 2,000 µg/m³.
• Low power consumption: nominal power requirement of 3.0 W.
• Battery operation: external 7.4 V lithium-ion battery with typical operation of 5 to 8 hours.
• NIST-traceable calibration: supplied with calibration data and a NIST-traceable calibration certificate.

Key Features

• Measurement principle: UV absorption at 254 nm.
• Resolution: 0.1 µg/m³.
• Precision: greater of 0.1 µg/m³ or 2% of reading.
• Accuracy: greater of 0.5 µg/m³ or 5% of reading.
• Measurement intervals: 10 s in measurement mode and 2 s in fast mode.
• Response time: 20 s for 10-second output and 4 s for 2-second output.
• Averaging times: 1 min, 5 min and 1 hr.
• Flow rate: nominal flow rate of approximately 0.8 L/min.
• Data storage: 8,192 lines, depending on selected measurement or averaging mode.
• Units: mercury concentration in ppb or µg/m³.
• Temperature and pressure correction: Yes.
• Operating temperature range: 0 to 50 °C.
• Operating altitude range: approximately 0 to 13.5 km, corresponding to 150 to 1,013 mbar.
• Power supply: battery operation or 7–24 VDC.
• Certification: CE.
• Option: wall-mount bracket.

Typical Applications

• Workplace exposure monitoring for individuals potentially exposed to mercury.
• Industrial mercury monitoring and control in relevant process environments.
• Personal exposure studies related to the health effects of air pollutants.
• Remote monitoring where available power is limited.
• Field-based atmospheric mercury measurements requiring compact instrumentation and GPS data logging.

Why choose HERMES PMM

The HERMES PMM is suited to technical users who require a compact, battery-powered mercury monitor capable of combining sensitive UV absorption measurement with GPS-based data logging. Its low power demand, small footprint and supplied calibration documentation make it appropriate for field work, occupational exposure assessment and industrial mercury monitoring where portability and traceability are important.

The system includes the HERMES PMM™ Personal Mercury Monitor™, AC power adapter, lithium-ion battery, battery charger, serial port cable, USB cable, zeroing cartridge, USB stick with operation manual and software, instrument birth certificate, calibration data, NIST-traceable calibration certificate and one-year warranty.