3
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Chrome-plated Brass Quick Disconnect Tube Fitting with 1/8” NPT thread
insert
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Chrome-plated Brass Quick Disconnect Tube Fitting with 1/8” hose barb insert
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Two-foot section of plastic tubing: This soft tubing is designed to fit over the
hose barb connector. Its standard size allows you to connect to a variety of
third-party instrumentation or adapters.
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Plumber's tape: This 1/2" sealing tape should be wrapped around the threading
on the pressure sensor. Wrap only once and to the right, as the threading runs.
This will help ensure an airtight seal.
Troubleshooting
For troubleshooting tips and FAQs, see
Repair Information
If you have followed the troubleshooting steps and are still having trouble with
your Go Direct Wide-Range Pressure, 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
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.
Battery recycling information is available at
Do not puncture or expose the battery to excessive heat or flame.
Accuracy using factory calibration
±2 kPa
Accuracy using one-point custom
calibration at atmosphere
±1 kPa
Internal volume of sensor with 1/8” NPT
thread insert attached
0.786 mL
Internal volume of sensor with 1/8” hose
barb insert attached
0.623 mL
Care and Maintenance
Clean sensor with a soft, damp cloth.
Battery
Go Direct Wide-Range Pressure contains a small lithium-ion battery. The sensor 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
To store Go Direct Wide-Range Pressure 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
Go Direct Wide-Range Pressure 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 before
attempting to use the device again. Do not attempt to dry using an external heat
source.
How the Sensor Works
The active sensor in this unit is a pressure transducer that has a membrane that
flexes as pressure changes. This sensor is arranged to measure absolute pressure.
One side of the membrane is a vacuum, while the other side is open to the
atmosphere. The sensor produces an output voltage that varies in a linear way with
absolute pressure. It includes special circuitry to minimize errors caused by
changes in temperature.
Included with the sensor are accessories to allow you to connect it to a reaction
container or instrument. Check to be sure that each of these items is included:
