VR001 Mide Technology Corporation, VR001 Datasheet - Page 4

• Manufacturer Part Number: VR001
• Description: VIBRATION DATA LOGGER
• Manufacturer: Mide Technology Corporation
• Series: Slam Stick™, Volture™r

Specifications of VR001

• Featured Product: Slam Stick™ Vibration Recorder
• Accessory Type: Vibration Characterization Device
• Lead Free Status / Rohs Status: Lead free by exemption / RoHS compliant by exemption
• For Use With/related Products: Volture™ Vibration Energy Harvesters
• For Use With: V25W - PIEZOELECTRIC ENERGY HARVESTERV20W - PIEZOELECTRIC ENERGY HARVESTERV21BL - PIEZOELECTRIC ENERGY HARVESTERV21B - PIEZOELECTRIC ENERGY HARVESTERV22BL - PIEZOELECTRIC ENERGY HARVESTERV22B - PIEZOELECTRIC ENERGY HARVESTER

OPERATION
To Charge your Slam Stick™
Leave the device plugged into the USB port for
charging. A green LED will signify that the device is
charging. The LED will go out when a full charge has
been reached. A full charge will take 1 to 2 hours.
To Configure your Slam Stick™
The following parameters can be configured for your
device.
To change settings such as recording pre-delay and
recording time, you can use either the ss_config.exe
program or (for Matlab® users) the 'ss_config.m' Slam
Stick Matlab script. Make sure any recordings you wish
to keep have been downloaded before you change
settings.
Whether using the .exe or Matlab, after asking a few
questions, the program will output a new 'config.dat' file
in the current working directory. Copy this file onto the
Vibration Recorder over the original. When you unplug
Pre-delay in seconds before recording
Number of samples recorded
Recording time in seconds
G-Level Trigger
Values between zero and 86,400
Time after the button is pressed before the
recording starts
Values between zero and 65535
Hit enter or zero if you would rather enter the
time of the recording
Values between 1 and 220 seconds
How long the device will record data after
the pre-delay has ended
Hit enter or zero for no limit
See Special Trigger Modes section for
more detail
REVISION N0. 001
REVISION DATE: 08-24-2010
the device, an automatic erase will be performed.
The Slam Stick™ will be delivered with a standard
configuration including a 10 second delay with a 30
second recording time. The g-level trigger will not be
enabled.
Multiple Recordings
Two methods are available to limit the size of each
recording, allowing you to continue taking recordings
until the flash memory is full. The recommended
method is to specify the number of seconds to record
for; however, the number of samples to record can also
be specified. If both settings are entered, recording will
stop if either condition is met. Please note that because
the recorder saves data in complete sectors (512
bytes) at a time, actual recording length may vary
slightly from the setting you enter.
Special Trigger Modes
Normally, recording or pre-delay begins immediately
after pressing and releasing the button. In some cases
it may be desirable to trigger recording only when a
certain G-level is exceeded. There are two G-level
trigger modes, depending on the nature of the event to
be measured and battery life required:
This is the lower power (longer battery life) trigger
mode and consumes ~ 60uA current. This mode is
best suited for sustained vibration events where it is not
necessary to record the beginning of the event. Since
the sample rate is very low, a brief G-level spike may
fall ‘in between’ samples and go unnoticed. In this
mode, the accelerometer is in a low-power idle mode,
the CPU is asleep and the Flash memory is powered
off. Thus, there will be a short delay between the first
recognized G-level exceedance and the start of
recording as the Flash memory is re-initialized.
‘Nap’ sample rates (1-8Hz)
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