3
before attempting to use the device again. Do not attempt to dry using an
external heat source.
How the Sensor Works
The Go Direct Rotary Motion uses a quadrature optical (incremental type)
encoder to measure the amount and direction of rotation. The encoder, which is
attached to the rotating sensor shaft, consists of a coded pattern of opaque and
transparent sectors. The quadrature encoder produces two pulse output patterns
90° apart in phase. The position of the shaft is determined by counting the
pulses. The phase relationship between the output signals determines the
direction of rotation.
Troubleshooting
For troubleshooting and FAQs, see
Repair Information
If you have watched followed the troubleshooting steps and are still having
trouble with your Go Direct Rotary Motion, contact Vernier Technical Support
at [email protected] or call 888-837-6437. Support specialists will work
with you to determine if the unit needs to be sent in for repair. At that time, a
Return Merchandise Authorization (RMA) number will be issued and
instructions will be communicated on how to return the unit for repair.
Accessories/Replacements
Item
Order Code
Rotational Motion Accessory Kit
AK-RMV
MK-RMV
CB-USB-MICRO
CB-USB-C-MICRO
Go Direct 300 mAh Replacement Battery
GDX-BAT-300
Warranty
Warranty information for this product can be found on the Support tab at
General warranty information can be found at
Disposal
When disposing of this electronic product, do not treat it as household waste. Its
disposal is subject to regulations that vary by country and region. This item
should be given to an applicable collection point for the recycling of electrical
and electronic equipment. By ensuring that this product is disposed of correctly,
you help prevent potential negative consequences on human health or on the
environment. The recycling of materials will help to conserve natural resources.
For more detailed information about recycling this product, contact your local
city office or your disposal service.
Specifications
Resolution
1° or 0.25°
Note:
High resolution mode is also known as ×4 mode. When
active, the sensor has a 0.25 degree resolution and a limited
maximum measurable rotational velocity.
Optical
encoder
Bidirectional, quadrature encoder, 360 cycle per revolution
Maximum
speed
30 rev/s at 1° resolution
7.5 rev/s at 0.25° resolution
3-step
pulley
10 mm, 29 mm, and 48 mm groove diameter
Battery
300 mA Li-Poly
Battery life
(single full
charge)
~24 hours
Battery life
(long term)
~500 full charge cycles (several years depending on usage)
Care and Maintenance
Battery Information
The Go Direct Rotary Motion contains a small lithium-ion battery. The system
is designed to consume very little power and not put heavy demands on the
battery. Although the battery is warranted for one year, the expected battery life
should be several years. Replacement batteries are available from Vernier (order
code: GDX-BAT-300).
Storage and Maintenance
To store the Go Direct Rotary Motion for extended periods of time, put the
device in sleep mode by holding the button down for at least three seconds. The
red LED will stop flashing to show that the unit is in sleep mode. Over several
months, the battery will discharge but will not be damaged. After such storage,
charge the device for a few hours, and the unit will be ready to go.
Exposing the battery to temperatures over 35°C (95°F) will reduce its lifespan. If
possible, store the device in an area that is not exposed to temperature extremes.
Water Resistance
The Go Direct Rotary Motion is not water resistant and should never be
immersed in water.
If water gets into the device, immediately power the unit down (press and hold
the power button for more than three seconds). Disconnect the sensor and
charging cable, and remove the battery. Allow the device to dry thoroughly
