Indoor air quality monitor VM-4000

outdoorindustrialfor laboratory

Product overview
The VM-4000 Mercury Vapor Monitor continuously measures mercury (Hg) concentration in air and other gases for laboratory and fixed-site monitoring. It is designed for continuous air quality monitoring, laboratory testing, environmental surveillance, industrial quality control and scientific research.

Features and benefits

• Direct-reading mercury vapor meter
• Detection by cold vapor atomic absorption (CVAAS) at 253.7 nm
• Electrodeless low-pressure mercury lamp (EDL) UV source
• Automatic zero adjustment and integrated data logger
• Color touch pad for quick access to measurements and settings
• Multiplexer compatibility for automatic monitoring of multiple sampling points
• Rugged casing with carry handles for portable indoor/outdoor use
• Optional battery pack or external 12 VDC power supply
• Available in dustproof version and 19-inch rack mount option

Main applications

• Workplace monitoring
• Research and scientific laboratories
• Hazardous waste inspection
• Emissions monitoring
• Quality control of industrial gases
• Contaminated site investigation
• Environmental monitoring

Technical information
Measuring principle: Cold vapor atomic absorption (CVAAS) at 253.7 nm
UV source: Electrodeless low-pressure mercury lamp (EDL)
Optical cell: Fused silica (Suprasil), length approx. 230 mm, heated to approx. 45 °C
Sensitivity: 0.1 μg/m3
Response time: < 1 s
Measuring ranges: 0 – 2000 μg/m3 (0–200 ppb)
Alarm: Two programmable alarm levels
Signal outputs: 4–20 mA, RS232, LAN, ESTEL
Power supply: 230 VAC / 50 Hz (110 VAC / 60 Hz option); Power consumption: 100 VA
Dimensions (W x H x D): 48.3 x 13.3 x 35.0 cm (including front plate with handles)
Weight: Approx. 8.7 kg

Approvals and certifications

• Manufactured according to ISO 9001 quality regulations
• CE approved