Electrode Amplifier (EA-BTA)

Specifications and User Guide

Troubleshooting

• Primary Test: Connect an ORP sensor or a pH sensor to the Electrode Amplifier and connect the Electrode Amplifier to a Vernier interface. Start the data-collection program. Place the ORP sensor or pH sensor in a buffer solution of known pH and confirm that the readings are within range.
• Secondary Test: Confirm that the BNC connection is secure.

Additional Troubleshooting

• Can I use my third-party ISE with my Vernier equipment?
• During calibration, what are the typical potential output readings for the PH-BNC electrode?

Specifications

• Power: 7 mA @ 5VDC
• Input: range –450 mV to +1100 mV
• Impedance: 100 MΩ
• Gain: 2.2 V/V
• Offset: 1.20 V (nominal)

Calibration

Calibrate? Normally, yes. However, it depends on the electrode that is connected.

The Electrode Amplifier amplifies the voltage produced by an electrode into a range where it can be monitored by the lab interface. The Electrode Amplifier will report values in units of millivolts. If a pH electrode is attached, however, you can choose to read in units of pH. Custom, linear 2-point calibrations can also be performed if desired. For more information, see How do I calibrate my sensor?

Related Products

• Go Direct^® Ion-Selective Electrode Amplifier (GDX-ISEA)
• Go Direct^® Electrode Amplifier (GDX-EA)