ActiGraph CPW01 Technical Manual page 2

Document No:
E.200.4038
Revision: 0
1.0 Introduction
The ActiGraph CentrePoint Insight Watch (CPW01) activity monitor provides objective measurement of
human activity and is used in many research and clinical applications. ActiGraph understands that
patients may be the intended operators of the ActiGraph CPW01 which is why it was designed to be
easy to use with no formal training required for use. This Technical Manual will describe all the
regulatory symbols, technical specifications, unique functionality, and safety statements are required for
regulatory purposes.
2.0 Specifications and Functionality of the CentrePoint Insight Watch
(CPW01)
2.1 Sensors
The CentrePoint Insight Watch includes one primary 3 axis accelerometer. It should be noted that data
will not be negatively affected by lint, dust, or direct sunlight.
2.1.1 Acceleration
Acceleration is measured using a digital MEMs accelerometer that is utilized for all historical and
standard data collection efforts.
Acceleration data from the primary sensor is sampled at 32 Hz, 64 Hz, 128 Hz, or 256 Hz (user
selectable). Outputs are stored in a raw, non-filtered format in the units of LSB's. This data is stored
directly into a non-volatile flash memory. Table 1 lists some key specifications for the accelerometers
utilized in the CPW01 device.
CentrePoint Insight Watch Technical Manual
Parameter
Axis
Sensitivity
Dynamic Range
Table 1: ​
A ccelerometer Key Specifications
Page 2 of 10
Primary Units
3
4 mg/LSB
+/-8 g