User`s guide

User's Guide ______________________________________________________________________
16 __________________________________________________________________ M210455EN-B
AWS Logger QML102T
0306-010
Figure 3 Logger QML102T
QML102T is a complete AWS logger designed on just one printed
board. This board contains a 32 bit Motorola CPU for data processing
and 10 differential (20 single ended) analog sensor inputs, that can
also be used as digital inputs. Moreover, there are two frequency
sensor interfaces, a 16 bit A/D converter, 1.7 Mbytes of secure Flash
memory for data logging, and a charger for the internal backup
battery.
The board uses the latest SMD (Surface Mount Device) technology
and is conformal coated for improved protection also in high
humidity. Each sensor input has a varistor (VDR) protection against
induced transients. The maintenance terminal connection (RS-232,
COM0) has transzorb diodes in its inputs.
In MAWS201MP the QML102T logger is located inside the logger
tube QME101M and is further encased to protect the circuit board and
the internal battery. The cover of this protective housing can be
removed for installation of the battery and for maintaining MAWS.
Optional modules under the housing include, for example, various
communication modules and a built-in pressure transducer.