The New DMAD Adaptor
The DMAD has evolved into a universal expansion module that is combination of our three
original expansion adaptors - DMAD, RS-232 interface adaptor & Random Number Generator adaptor. It
provides a single module solution for adding various extra features to enhance capa- bilities of
Geiger Counters. The
DMAD connects to an Analog Gei- ger counter using a 3.5 mm plug. This plug can be connected to the
digital output or headphone jack of most Analog Geiger counters. This connection expects to see a
+5V TTL pulse every time the Geiger counter detects a radioactive parti- cle. Functionality is
selected by a switch located on backside B7.
Digital Meter Function:
Digital Meter provides the count in either CPS (Counts per Second) or CPM (Counts Per Min- ute) on
the top line of the LCD display. The bottom line of the LCD display provides the ap-
proximate radiation level.