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Power Up Test
Before you make any other connections to your Reference 3000 you should check that the Reference 3000 is
at least nominally functional.
One quick test is to power up the Reference 3000 and watch the blue power LED indicator on the front panel
of the Reference 3000 (see Figure 4 - 1). After connecting DC power to the Reference 3000, turn on its rear
panel Power switch (see Figure 4 - 2). The Power LED should go on for a second or so, flash three times, then
remain on.
The status of the other LED indicators is not important at this time.
Each flash of the power LED upon startup corresponds to successful conclusion of one portion of the Power
PC's power-up self-test.
If the power LED goes on, then turns off and stays off, the Reference 3000 is not working properly! Contact
Gamry Instruments or your local Gamry Instruments representative as soon as possible if this power up test fails.
USB Cabling
The Reference 3000 connects to the computer using a standard High Speed USB A/B cable. A suitable cable
was shipped with your Reference 3000. If this cable has been lost, you can get a replacement at almost any
computer retailer. The replacement cable should be rated for USB 2.0 high speed USB operation.
An A/B USB cable has different connectors on each end. The end with a wider, rectangular shaped connector
plugs into a USB port on your computer (or a similar port on a USB hub). The end with a nearly square
connector plugs into the USB port on the Reference 3000 (see Figure 4 - 2).
The USB connection can be "hot-plugged". This means, both the computer and the Reference 3000 can be
powered-up before the USB cable is plugged in. Unlike many other instrument system connections, you need
not power down the system before plugging in the USB.
You can also safely remove the USB cable without powering down the Reference 3000 and your computer.
Be aware however, that this may have undesirable consequences if the system is currently taking data or
performing an electrochemical experiment.
Front Panel USB LED
The front panel USB LED provides a simple test of two aspects of normal Reference 3000 USB operation. It has
three normal states:
Unlighted - indicating that the USB cable is disconnected or the USB connection is disabled by the host
•
computer,
Solid Green - indicating that a valid cable connection has been made and the Reference 3000 USB
•
processor is receiving power from the USB cable,
Flashing Yellow - indicating that valid USB messages are being transferred between the computer and
•
the Reference 3000.
The flashing state will only be seen when Gamry Instruments application software is running.
One additional USB LED indication is possible. A solid red indication occurs during a firmware update. The
firmware update process is described later in this chapter.
Chapter 4 -- Installation--Power Up Test
4 - 5
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