1
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
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 [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
Ammonium Ion-Selective Electrode BNC
NH4-BNC
Calcium Ion-Selective Electrode BNC
CA-BNC
Chloride Ion-Selective Electrode BNC
CL-BNC
FPH-BNC
GPH-BNC
Nitrate Ion-Selective Electrode BNC
NO3-BNC
ORP-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:
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)
