Vernier Go Direct Surface Temperature User Manual page 2

Connecting via Bluetooth
Ready to connect Red LED flashes when sensor is awake and
ready to connect via Bluetooth.
Connected Green LED flashes when sensor is connected via
Bluetooth.
Connecting via USB
Connected and charging Blue and Green LED solid when sensor is con-
nected to Graphical Analysis via USB and unit
is charging. (Green LED is obscured by the blue
one.)
Connected, fully charged Green LED solid when sensor is connected to
Graphical Analysis via USB and the unit is fully
charged.
Charging via USB, Blue LED is solid and green LED is flashing, but
connected via Bluetooth the green flashing LED looks white because it is
overwhelmed by the blue.
Identifying the Sensor
When two or more sensors are connected, the sensors can be identified by
tapping or clicking Identify in Sensor Information.
Using the Product
Connect the sensor following the steps in the Getting Started section of this user
manual.
Important: Go Direct Surface Temperature is for use in air and water only. For
temperature measurements in harsher environments that require a more durable
probe, we recommend our Go Direct Temperature (order code GDX-TMP).
Calibration
It should not be necessary to perform a calibration when using this sensor. It is
calibrated before it ships.
Specifications
Temperature range
Maximum temperature that the sensor can
tolerate without damage
Temperature sensor
Accuracy
Response time from 25°C to 100°C in water
Probe dimensions: probe length (handle plus
body)
Care and Maintenance
Battery Information
Go Direct Surface Temperature contains a small lithium-ion battery in the
handle. 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 Surface Temperature 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 body of the Go Direct Surface Temperature Sensor 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.
2
–25°C to 125°C (–13°F to
275°F)
150°C
20 kΩ NTC Thermistor
±0.5°C or better
5 seconds
Handle: 7 cm high, 3.5 cm
wide, 2 cm deep
Cable: 1 m
Submergible section: 7 cm