Charme^® — Portable Aerosol Electrometer

Charme® — Portable aerosol electrometer (chargemeter) for the measurement of aerosol concentrations in the range of 2 nm up to 100 µm

Description

The Charme® electrometer works by capturing all the particulate sampled and measuring the total charge as current produced as the charge drains to earth.

By using replaceable gravimetric filters a correlation of the measured electric charge (particle charge) to the mass concentration can be determined for high aerosol concentrations.

The Charme® has been compared with established electrometers held at the Federal Office of Metrology METAS (Switzerland) and achieved very good measurement results.

The Charme® mobile aerosol electrometer operates both on mains power and its internal battery, with a touch screen display. It displays particle concentration and electrometric flow graphically.

Sampling flowrate is 1 - 8 l/min with a measuring range of 1fA - 22500fA for particles from 2nm — 100µm (the upper diameter limit is determined mainly by aerosol transport losses through the sampling line).

Applications

Environmental measurements
Workplace measurements
CPC calibration

Particular advantages

Real-time, continuous particle concentration measurement. At the same time a removable gravimetric filter can be used to determine mass concentration
Portable with support of battery operation
Integrated computer with 3.5” touch panel display
Intuitive user interface with sophisticated software for data evaluation
Supports network connectivity
Integrated interface for process control applications
Measurement range 1 fA — 22,500 fA, volume flow 1 — 8 l/min

Please contact us for more detailed information.