Go Direct™
ORP Sensor
(Order Code GDX-ORP)
The Go Direct ORP Sensor measures the ability of a solution to act as an
oxidizing agent or reducing agent. ORP stands for oxidation-reduction potential.
For example, ORP electrodes are often used to measure the oxidizing ability of
chlorine in swimming pools, or to determine when the equivalence point has been
reached in an oxidation-reduction reaction.
Note:
Vernier products are designed for educational use. Our products are not
designed nor are they recommended for any industrial, medical, or commercial
process such as life support, patient diagnosis, control of a manufacturing
process, or industrial testing of any kind.
What's Included
Go Direct ORP Sensor (Go Direct Electrode Amplifier connected to a Go
Direct ORP BNC Electrode)
Electrode storage bottle, containing pH 4/KCl solution
Micro USB Cable
Compatible Software
See
www.vernier.com/manuals/gdx-orp
for a list of software compatible with the Go
Direct ORP Sensor.
Getting Started
Please see the following link for platform-specific connection information:
www.vernier.com/start/gdx-orp
Bluetooth Connection
USB Connection
1. Install Graphical Analysis 4 on your
computer, Chromebook™, or mobile
device. See www.vernier.com/ga4
for software availability.
2. Charge your sensor for at least
2 hours before first use.
3. Turn on your sensor by pressing the
power button once. The Bluetooth
®
LED will blink red.
4. Launch Graphical Analysis 4.
5. Click or tap Sensor Data Collection.
6. Click or tap your Go Direct sensor
from the list of Discovered Wireless
Devices. Your sensor's ID is located
near the barcode on the sensor. The
Bluetooth LED will blink green
1. Install Graphical Analysis 4 on your
computer or Chromebook. See
www.vernier.com/ga4 for software
availability.
2. Connect the sensor to the USB port.
3. Launch Graphical Analysis 4. The
app will identify the sensor.
when it is successfully connected.
7. Click or tap Done to enter data-
collection mode.
Charging the Sensor
Connect the Go Direct ORP Sensor to the included USB Charging Cable and any
USB device for two hours. Connecting the Go Direct ORP Sensor to the electrode
amplifier during charging is optional.
You can also charge up to eight Go Direct ORP Sensors using our Go Wireless
Charging Station, sold separately (order code: GW-CRG).
Charging
Blue LED is on steady while sensor is connected to
the Charging Cable or Charging Station.
Fully charged
Blue LED is off when charging is complete.
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:
www.vernier.com/start/gdx-orp
Connecting via Bluetooth
Ready to connect
Red LED flashes when sensor is awake and ready
to connect.
Connected
Green LED flashes when sensor is connected via
Bluetooth.
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