The CNMC Model 206 dosimetry electrometer maintains the simplicity of classic electrometer
styling while utilizing contemporary design and state-of-the-art electronics. The Model 206 is
simple to operate. All controls are located on the front panel. The nomenclature is clear and concise.
The value is displayed in easy-to-read 0.7-inch digits. A tilt bail is provided for optional viewing angles.
The Model 206 has a broad range of operation and can accommodate any size of ion chamber. The versatility of
the Model 206 stems from its innovative modular design. The amplifier feedback element is contained in an
external module. This module is removable and can be exchanged with any number of modules. Each module
changes the measurement features of the electrometer. In this way, a single electrometer can be configured
to satisfy a wide range of applications. By pairing an ion chamber with a specific module, full calibration
of all chambers on a single electrometer can be achieved.
Removable Feedback Modules
A standard 200nC feedback module with a triaxial BNC connector, optimized for beam calibrations with a 0.6cc Farmer-type ionization chamber, is supplied with each Model 206 electrometer. It allows the Model 206 to provide readings of 00.01 to 199.99nC in high, 0.001 to 19.999nC in medium, and 0.0001 to 1.9999nC in low range, making it usable with chamber volumes 100 times smaller than 0.6cc for comparable exposures. The standard module may be substituted with another module at no additional cost, or additional extra-cost feedback modules may be added to suit multiple applications. The following table lists optional feedback modules. Triaxial BNC input connector is standard. TNC is available on request.