Brochure

STE-1400 Series Temperature Sensors
KMD-12x1
NetSensor
with Motion
Sensor
STE-6000 Series Room Temperature Sensors
Temperature and Humidity
Temperature sensors are the most familiar and most
common types of sensors in building automation. The
STE-6000 series compact room temperature sensors
offer various setpoint, override, and display options.
The STE-1400 series contains a variety of temperature
sensors for a multitude of applications, including the
temperature of air inside rooms, inside ducts, and
outdoors, as well as the temperature of the heating/
cooling water inside pipes.
Depending on the climate, however, temperature
alone doesn’t tell the whole story about human
comfort. A (dry bulb) sensor temperature of 72°
would feel very different to us at 10% relative humidity
than it would at 90% relative humidity. Too much or
too little humidity can be uncomfortable for people
or even damaging to materials. KMC’s THE-1xxx
series humidity sensors can measure humidity in
rooms or ducts. NetSensors and FlexStats with the
optional humidity sensor measure and display room
temperature as well as humidity.
Sensors and Their Relatives
In today’s buildings, sensors are essential devices
in maintaining efficient operation and healthy,
comfortable environments for occupants. “Sensors”
are used in diverse HVAC and building automation
applications and are closely related to several other
types of devices.
• Sensors measure a physical characteristic of an
environment and provide a signal corresponding
to those properties. Sensors may be stand-
alone or integrated within a control device (e.g., a
thermostat).
• Transmitters are also sensors, but take the
relatively small (and passive) sensor signal (e.g.,
the resistance of a thermistor in response to a
temperature) and convert it into an active voltage
(e.g., 0–5 VDC) or active current (e.g., 4–20 mA).
Boosting the signal allows greater distance
between the sensor and the controller.
• Transducers convert one kind of energy into
another. The physics may be different, but they
can function as sensors. In building automation,
transducers may convert pressure into voltage
or current (or vice versa) or voltage signals into
current signals (or vice versa).
• In building automation applications, many sensors,
transmitters, and transducers perform essentially
the same function, sensing a physical characteristic
and providing a signal to an external control device.
Thermostats, on the other hand, contain a sensor
integrated with a control device. Thermostats may
be as simple as a bimetallic switch or sophisticated
digital devices. FlexStats, for example integrate a
native BACnet controller with a temperature sensor
and optional humidity, motion, and/or CO
2
sensors.
In building automation
systems, sensors monitor air
(temperature, humidity, CO
2
levels, CO levels, smoke,
flow rate or pressure), water
(temperature or pressure),
or even motion/occupancy
of people.