ActiGraph CPW01 User Manual

CentrePoint Insight Watch Technical
Manual

Document No:

E.200.4038

Revision - 0

Change History

Rev

CRF # or
Effective Date

Description of Change
0 2018-08-09

Initial Release

All information contained herein is confidential and proprietary. All design, manufacturing, use, reproduction, & sales rights are expressly
reserved. Communication of this information to others is prohibited.

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Document No:
E.200.4038

Revision: 0

CentrePoint Insight Watch Technical Manual

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.

Parameter

Primary

Units

Axis

3 Sensitivity

4

mg/LSB

Dynamic Range

+/-8

g

Table 1: Accelerometer Key Specifications

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Document No:
E.200.4038

Revision: 0

CentrePoint Insight Watch Technical Manual

2.1.1.2 Axis orientations

2.1.2 Operating the device

ActiGraph supplies a companion software application, CentrePoint Software, to communicate with the
device for the purposes of initiating data collection, sending configuration instructions, and downloading
the collecting data.

2.1.2.1 Starting and Stopping the Device

Initiation and stopping of data collection will be handled through CentrePoint Software. Users will be
trained on the CentrePoint Software to be able to use the CPW01 device.

2.2 Battery

The ActiGraph CPW01 device uses a lithium polymer rechargeable battery that has a maximum voltage
of approximately 4.20 volts and a total life expectancy of two to five (2-5) years. Batteries are to be
serviced by ActiGraph authorized personnel only. In order to slow the aging of the lithium polymer
battery, it is recommended that devices be stored in a partially charged state (40 – 60% battery capacity)

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