- Exclusive UK & Ireland Jerome partner
- European Service Centre for Jerome analysers
- UK technical support for mercury monitoring applications
- Guidance on portable and fixed Jerome options
AMETEK Brookfield Jerome J405 Mercury Vapour Analyser
Portable low-level mercury vapour detection for survey, safety, and remediation applications.
Key highlights
- Low-level mercury detection: Measures from 0.5 µg/m³ for trace and safety-critical applications.
- Portable survey instrument: Designed for field use, inspections, and rapid contamination assessment.
- Gold film sensor technology: Proven method for repeatable mercury vapour measurement.
- Survey mode capability: Continuous sampling helps locate sources of mercury contamination.
- Field-ready operation: 24-hour battery life with on-site sensor regeneration.
- Regulatory alignment: Supports monitoring against recognised industrial and environmental limits.
The AMETEK Brookfield Jerome J405 is a portable mercury vapour analyser designed for accurate detection of mercury in air at low concentrations. It uses proprietary gold film sensor technology to deliver repeatable measurement performance in applications where reliable mercury monitoring is required.
The instrument is used where low-level mercury detection is critical for safety, compliance, or investigation work. This includes industrial hygiene monitoring, environmental assessment, remediation projects, and emergency response situations where airborne mercury must be identified and quantified quickly.
A key strength of the J405 is its ability to support survey-based monitoring. In survey mode, the analyser continuously draws air samples, allowing users to trace mercury vapour back to its source. This makes it particularly effective for spill detection, contamination mapping, and verifying the success of cleanup activities.
Designed for field deployment, the J405 combines portability with operational reliability. Its rechargeable battery supports extended use, while on-site sensor regeneration enables continued operation without returning the instrument to base. This is important for users working across multiple locations or in time-critical situations.
The analyser is used across a wide range of industries including environmental monitoring, industrial processes, mining, and hazardous materials response. In these applications, accurate mercury measurement supports informed decision-making, helps maintain safe working conditions, and ensures compliance with regulatory limits.
Key Features
- Wide detection range: Measures mercury vapour from 0.5 µg/m³ up to 999 µg/m³, supporting both trace detection and higher concentration assessment.
- High measurement resolution: 0.01 µg/m³ resolution enables identification of small concentration changes during investigation and monitoring.
- Proven gold film sensor: Established sensing technology delivers stable and repeatable performance across industrial and environmental applications.
- Dual sampling modes: Sample mode provides controlled measurements, while survey mode enables rapid response for tracing contamination sources.
- Optional integrated data logging: Stores up to 20,000 readings with time, date, and location data for reporting and audit purposes when equipped.
- Flexible data output: USB serial communication supports data transfer, while 4–20 mA output enables integration into monitoring systems.
- Portable, durable design: Metal housing and ergonomic construction support reliable use in field and industrial environments.
- Compliance-driven measurement: Detection capability supports monitoring against recognised occupational and environmental exposure limits.
Specifications
| Measurement Performance | |
| Detection Range | 0.5 µg/m³ to 999 µg/m³ |
| Resolution | 0.01 µg/m³ (0.00001 mg/m³) |
| Accuracy | ±10% at 1.0 µg/m³; ±5% at 25 µg/m³; ±5% at 100 µg/m³ |
| Response Time | Sample Mode: 16 seconds; Survey Mode: 2 seconds |
| Flow Rate | 750 ± 50 mL/min |
| Result Units | µg/m³, mg/m³ |
| Sampling and Data | |
| Autosample Intervals | 1, 2, 5, 10, 15, 30, 45, 60, 90 or 120 minutes |
| Data Storage | Optional; up to 20,000 test results with date, time, and up to 80 locations |
| Display | 3.5" (9 cm) backlit LCD |
| Output | Digital: USB serial data to PC, printer, or USB flash drive Analog: 4-20 mA passive current loop; accurate to 0.3% of output |
| Power and Electrical | |
| Battery | Rechargeable NiMH |
| Battery Life / Charge Time | 24 hour life, charges in 3 hours |
| Power Requirements | 12 VDC for the instrument; 100-240 VAC, 47-63 Hz, 1.3A for the AC power supply |
| Fuse | Auto-resetting fuse |
| Environmental and Physical | |
| Operating Environment | 0°C to 45°C, non-condensing, non-explosive |
| Dimensions | 11" L x 6" W x 6.5" H (28 cm L x 16 cm W x 17 cm H) |
| Weight | 5.3 lbs. (2.4 kg) |
| Compliance and Certification | |
| Certifications | TUV 61010, CE |
| Warranty | 1 year, factory parts and labour |
Support
Able Instruments are the Exclusive UK and Ireland partner and European Service Centre for AMETEK Brookfield Jerome analysers, providing application advice, configuration support and after-sales service for mercury monitoring applications.
- Application guidance: Support identifying whether the J405 is the right fit for industrial hygiene, spill response, remediation, and routine mercury monitoring.
- Selection support: Help comparing portable and fixed Jerome monitoring options, or choosing between the J405 and other mercury analysers in the range.
- Technical advice: Assistance with deployment, output requirements, and practical use of the analyser within your monitoring process.
- Training support: Guidance on correct use, handling, and maintenance to ensure reliable long-term operation.
- Calibration and service: Able is the exclusive UK and Ireland partner and European Service Centre for AMETEK Brookfield’s Jerome range.
Other Mercury Monitoring Options
Accessories
Accessories and consumables are supplied separately and selected based on your application requirements. Typical accessories include: