Vernier EA-BTA Operator's manual

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Stored calibration (mV) slope: 466.875
intercept: –559.793
Stored calibration (pH) slope: –7.752
intercept: 16.237
Care and Maintenance
Do not wrap the cable tightly around the sensor for storage. Repeatedly doing
so can irreparably damage the wires and is not covered under warranty.
How the Sensor Works
The Electrode Amplifier is a circuit that allows the millivolt output of an
electrode to be monitored by an interface. The electrode is connected to the
BNC connector on one end of the amplifier. The cable from the Electrode
Amplifier connects to the interface.
The Electrode Amplifier will report values in units of pH. If an ORP or ISE
electrode is attached, however, you can choose to read in units of mV. Custom
linear 2-point calibrations can also be performed if desired.
Troubleshooting
For troubleshooting and FAQs, see www.vernier.com/til/1430
Repair Information
If you have watched the related product video(s), followed the troubleshooting
steps, and are still having trouble with your Electrode Amplifier, contact Vernier
Technical Support at [e-mail] 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
Ammonium Ion-Selective Electrode BNC NH4-BNC
Calcium Ion-Selective Electrode BNC CA-BNC
Chloride Ion-Selective Electrode BNC CL-BNC
Flat pH Electrode BNC FPH-BNC
Glass-Body pH Electrode BNC GPH-BNC
Nitrate Ion-Selective Electrode BNC NO3-BNC
ORP Electrode BNC ORP-BNC
pH Electrode BNC PH-BNC
Potassium Ion-Selective Electrode BNC K-BNC
Electrode Amplifier
(Order Code EA-BTA)
Use our Electrode Amplifier to collect data with
almost any electrode that has a BNC connector.
This includes electrodes from Vernier such as one
of our pH, ISE, or ORP electrodes, or third-party
electrodes, such as pH, ISE (ion-selective
electrode), or ORP (oxidation-reduction
potential). The Electrode Amplifier can produce an output in mV, pH (when
using a pH electrode). You can also perform your own 2-point linear calibration.
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.
Compatible Software
See www.vernier.com/manuals/ea-bta for a list of software compatible with the
Electrode Amplifier.
Getting Started
1. Connect the sensor to the interface (LabQuest Mini, LabQuest 2, etc.).
2. Start the appropriate data-collection software (Logger Pro, Logger Lite,
LabQuest App, or Graphical Analysis 4) if not already running, and choose
New from File menu. The software will identify the sensor and load a
default data-collection setup. You are now ready to collect data.
If you are collecting data using a Chromebook™, mobile device such as iPad®
or Android™ tablet, or a Vernier wireless interface, please see the following
link for up-to-date connection information:
www.vernier.com/start/ea-bta
Specifications
Power 7 mA @ 5VDC
Input range –450 mV to +1100 mV
Impedance 100 M Ohm
Gain 2.2 V/V
Offset 120 V (nominal)

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Warranty
Vernier warrants this product to be free from defects in materials and
workmanship for a period of five years from the date of shipment to the
customer. This warranty does not cover damage to the product caused by abuse
or improper use. This warranty covers educational institutions only.
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.
The symbol, shown here, indicates that this product must not be disposed of
in a standard waste container.
Vernier Software & Technology
13979 SW Millikan Way • Beaverton, OR 97005-2886
Toll Free [phone] • [phone] • Fax [phone]
[e-mail] • www.vernier.com
Rev. 01/31/20
Logger Pro, Logger Lite, Graphical Analysis, Vernier LabQuest, Vernier LabQuest Mini, and other marks
shown are our trademarks or registered trademarks in the United States.
iPad is a trademark of Apple Inc., registered in the U.S. and other countries.
All other marks not owned by us that appear herein are the property of their respective owners, who may or may
not be affiliated with, connected to, or sponsored by us.