EMP-3

Applications

• Air measurement for occupational safety / contamination testing
• Investigation of gas tanks and gas transport systems
• Occupational health and safety during system maintenance
• Direct measurement of gaseous elemental mercury in natural gas, shale gas and LPG from Tedlar bags
• Mercury measurement in digestion solutions and waters

How is the EMP-3 controlled?

The device is operated via a splash-proof color touchscreen, which allows easy selection of the various measurement modes and units. The measurement results can be displayed in µg/m³ or mg/m³, alternatively also as a bar graph with color-coded warning limits and limit value violations. Average concentrations and maximum values are also visualized. All measurement results are

are stored on an SD card and can be edited to create reports and save data. Unlike its predecessor, the EMP-2, the EMP-3 also allows the measurement data to be visualized on the display at a later date. Separate software or a control computer are not required. All function buttons are clearly arranged and enable simple, direct use in any environment.

How does the measurement work?

The EMP-3 is a compact, portable cold vapor AAS that performs continuous measurements. The measuring range extends from 0.1 µg/m³ to 2,000 µg/m³, whereby you can set the desired limit value yourself. This makes the EMP-3 an indispensable device for monitoring the maximum workplace concentration of 20 µg/m³ of air.
The measured values (GPS-supported data logger for direct allocation of location and measured value included) are saved and can be transferred to a PC for further processing.

Once switched on, the EMP-3 is ready for use in 10 minutes. It has an auto-zero function that starts automatically so that no regeneration of sensors is required. The measuring principle is based on atomic absorption spectroscopy (AAS), which means that the device has no saturating sensors and high loads can be detected correctly. The calibration of the AAS is stable and can be checked and renewed by our service department as part of annual maintenance. Simply send us your device by post and we will carry out the calibration. You will receive the device back within 1-2 weeks and can start measuring.

Alternatively, you can also carry out the calibration yourself, which is particularly worthwhile if you have several devices, as you will need a laboratory and must observe user protection. A calibration set for producing mercury standards is available from us.

Portable personal protection

The EMP-3 is an extremely compact and handy measuring device that weighs just 1.6 kg and measures 20.7 cm x 11.5 cm x 14 cm. It is equipped with shoulder and waist straps so that your hands remain free, which is particularly practical when working or climbing. Thanks to its low weight and the carrying system, the device is hardly noticeable and does not interfere with normal work processes.

The measuring probe can be attached to the shoulder strap in the wearer’s breathing zone to ensure continuous monitoring in the relevant area. An acoustic alarm sounds if the set warning limit is exceeded. The EMP-3 has a special technology for checking and compensating for cross-sensitivities. In the event of an alarm or a limit value being exceeded, a possible cross-sensitivity can be checked at the touch of a button.

Special applications & extensions
The EMP-3 can also be used for unattended, continuous monitoring of the mercury concentration in the ambient air. With the Hi-Lutor option, which uses the concept of dynamic flow dilution, the measuring range of the EMP-3 can be extended to up to 20,000 µg/m³. This means that mercury measurements are also possible in areas where the concentration is exceptionally high.

The Aquakit is an extension module that enables the analysis of aqueous samples.

A 0.8 meter telescopic probe is available as an option, allowing measurements to be taken in hard-to-reach places without the user having to get unnecessarily close to the potential source of danger.

Sample preparation

Since elemental mercury is measured directly in the air, no sample needs to be prepared.

Specifications

• Real-time mercury determination using cold vapor AAS
• Measuring range: 0.1 – 2000 µg/m³ (up to 20,000 µg/m³ with Hi-Lutor option)
• Temperature compensation
• GPS tracking
• Sample flow rate 1l/minute
• Color LCD touchscreen
• Carrying system
• Weight: 1.6kg (including battery)
• Dimensions: 207 W x 140 H x 115 D (mm