Technical data

Chapter 2 __________________________________________________________ Main Components
VAISALA________________________________________________________________________ 17
QMD170
The QMD170 handheld unit is attached to the RS-232 port connector
at the bottom flange of the enclosure. There is no need to open the
door of the enclosure. The QMD170 unit is powered by its own
rechargeable battery. Due to its light weight and small size, the
QMD170 is easily carried to the installation site in the pocket. The
length of the cable is 3 meters.
MAWS Enclosure
ENC542PLM
The ENC542PLM is a polyester enclosure reinforced with fiberglass
for the MAWS301 HydroMet system. This robust enclosure has space
for the QML201 Logger, multiple communication equipment, battery
charger and maintenance free Lead-acid batteries of different sizes
with a capacity of up to 48 Ah. Optional devices such as a mains
power supply and protective devices for communication lines can also
be installed inside the enclosure. All of these devices are installed on
easy-to-remove DIN-rails except the back up battery which is installed
by means of a screw fixed mounting clamp.