Installed
between a snow and ice melting control and connected aerial, gutter,
and/or pavement sensors, the Snow Switch brand SEM–1 sensor
expansion module provides enhanced monitoring of each sensor used in
a snow and ice melting system.
The
SEM–1 provides indication that each sensor is energized
(power/green LED) and which sensor(s) is signalling a call for heat
(snow/yellow LED).
Using
a SEM–1 sensor expansion module, a faulty sensor is quickly
identified. Troubleshooting and repairs can be made to a damaged
sensor while the remainder of the system continues normal operation.
By encouraging system installers to run a separate cable between each
sensor location and an SEM–1 it is far easier to trace wiring
faults than when multiple sensors are parallel connected in one or
more junction boxes that are often hard to locate.
The
SEM–1 provides a fuse for each sensor, preventing a single bad
sensor from disabling an entire snow and ice melting system. An
internal, tamper-resistant magnetic switch allows for snow-event
simulation.
The
unit has space on its front panel for sensor ID stickers, or other
custom markings, to quickly identify which SEM–1 sensor channel
is paired with which sensor.
