Specifications
PolarXpress XC Sensor
Wireless 0-1 mA Current Sensor
GENERAL DESCRIPTION
The Wireless 0-1mA DC Current Sensor is designed to
work with current transducers that convert a measured
AC current signal to a DC signal up to 1mA. When a
current transformer (CT) is used to obtain the measured
AC signal, and connected to a current transducer, the
Wireless 0-1mA DC Current Sensor will provide a signal
that is proportional to the measured AC current that can
be displayed.
FEATURES
• Measures current up to 1 mA DC.
• PolarXpress online wireless sensor monitoring and
notification system to configure sensors, view data
and set alerts via SMS text and email.
PRINCIPLE OF OPERATION
By connecting the leads of the PolarXpress Wireless
0-1mA Current Sensor to the output of a current
transducer (such as a Flex-Core MCT5), and
connecting appropriately sized current transformers
to the input of a current transducer, the sensor will
wirelessly transmit the measured AC current from
system loads as a proportional 0-1mA DC signal
through a PolarXpress Gateway to the PolarXpress
Graphical User Interface (GUI). The sensor data is
transformed back to the original current reading in the
GUI and stored. When Facility and IT load currents are
measured, the readings can then be attached to the
PolarXpress PUE calculator to provide real-time PUE.
POWER OPTIONS
X Sensors are powered by a replaceable 3.0 V coin cell
battery. The X2 Sensors are larger in size (3” [L] x 2.1”
[W] x 1.2” [h]) and include two long-life AA batteries.
It is recommended that unless you are using the AA
battery solution, you set heartbeat to no faster than one
hour to preserve battery life.
POLARXPRESS X SENSOR CORE
SPECIFICATIONS
• Power: X Sensor: replaceable 3.0 V coin cell battery.
X2 Sensor: 2 replaceable AA 1.5V batteries.
• Communication: RF 900, 868 and 433 MHz
• Antenna: 4” wire antenna
• Operating Temperature: -7º to 60ºC (20º to 140ºF)
• Device Range: 250 - 300 ft. non-line-of-sight*
• Battery Life:
X Sensor: At 1 hour heartbeat setting, coin cell
battery will last 1-2 years.**
X2 Sensor: At 1 hour heartbeat setting, included
AA batteries will last more than 4 years.**
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and
other variables.
1.775 in
(45.085 mm)
1.040 in
(26.416 mm)
Height: 0.785 in
(19.939 mm)
™
2.100 in
(53.340 mm)
3.020 in
(76.708 mm)
Height: 1.270 in (32.258 mm)
™
X Sensor
X2 Sensor