2
Note:
The K-type channel is the default channel for this sensor. All channels are
mutually exclusive. In order to collect data from the other temperature channels,
you must also attach the applicable corresponding thermocouple wire to the
amplifier box.
Calibrating the Sensor
You should not have to perform a new calibration when using Go Direct
Thermocouple in the classroom. The sensor is custom calibrated before it is
shipped. If you wish to calibrate the sensor, you can conduct a one-point
calibration in the software. This calibration will be stored automatically to the
sensor.
Specifications
Temperature range
–200°C to 1400°C
Typical accuracy
±2.2°C or 0.75% of reading, whichever is
greater
Compatible thermocouple
wires
K-type, J-type, and T-type
Wireless Specification
Bluetooth 4.2
Battery
300 mA Li-Poly
Care and Maintenance
Battery Information
Go Direct Thermocouple 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 Go Direct Thermocouple 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 for use.
Exposing the amplifier box to temperatures below –15°C or over 45°C will
damage it. Additionally, temperatures over 35°C (95°F) will reduce the battery's
lifespan. If possible, store the device in an area that is not exposed to
temperature extremes.
Water Resistance
Important:
Go Direct Thermocouple is neither waterproof, nor is it water
resistant and should never be immersed in water.
Powering the Sensor
Turning on the sensor
Press button once. Red LED indicator flashes
when unit is on.
Putting the sensor in sleep
mode
Press and hold button for more than three
seconds to put into sleep mode. Red LED
indicator stops flashing when sleeping.
Connecting the Sensor
See the following link for up-to-date connection information:
Connecting via Bluetooth Wireless Technology
Ready to
connect
Red LED flashes when sensor is powered and ready to
connect.
Connected
Green LED flashes when sensor is connected via Bluetooth
wireless technology.
Connecting via USB
Connected via USB, data collection
software is not running
Red LED flashes when sensor is
powered and ready to connect.
Connected via USB, data collection
software is running
Green LED is solid when connected to
the software via USB.
Identifying the Sensor
Use the Identify feature to flash the LED on the sensor that is connected via
Bluetooth wireless technology. In Graphical Analysis, Identify is accessed from
Sensor Information. In LabQuest App, Identify is accessed by tapping the sensor
meter, then tapping Go Direct.
Using the Product
Connect the sensor following the steps in the Getting Started section of this user
manual.
The thermocouple wire is insulated by a high-temperature glass that has a lower
maximum temperature (704°C, 1300°F) than the wire itself (1400°C, 2552°F).
Therefore, in use, place only the tip of the wire in the heat source and keep the
insulation out of direct contact with the heat source.
Channels
Go Direct Thermocouple has three sensor channels:
l
K-type (default)
l
J-type
l
T-type
