ADInstruments pH Amp, Owner'S Manual

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pH Amp Owner’s Guide
20
The Front-end Driver
A driver is a piece of software the computer uses to drive a peripheral
device. In order for a front-end to be recognized by ADInstruments
applications, the appropriate front-end driver must be present.
Front-end drivers are installed when ADInstruments applications are
installed on the computer. To replace the drivers, you should reinstall
the ADInstruments software.
Front-end Self-test
Once the pH Amp is properly connected to the PowerLab, and when
the correct software version is installed on the computer, the following
quick check can be performed on the pH Amp:
• Turn on the PowerLab and check that it is working properly, as
described in the owner’s guide that was supplied with it.
• Once the PowerLab is ready, open either LabChart or Scope.
During initialization, you should see the PowerLab and pH Amp
Status indicators flash briefly and then remain lit.
Note: if only the pH Output is connected, then the indicator for the
Temperature probe will not light, and vice versa. If the indicators do
not light, check the connections and repeat the procedure. If this does
not solve the problem, contact your ADInstruments representative.
Software Behavior
When the pH Amp is properly connected to a channel, the
Input
Amplifier… menu command is replaced by pH Amp… for the channel to
which it is connected. In Scope, the
Input Amplifier…
button in the
Input A (or Input B) panel is replaced by the pH Amp… button. If the
application fails to find a front-end attached, the normal text remains.
If you were expecting a connected front-end and see the normal text
instead, you should quit the application, turn the PowerLab off and
check the connections. Then restart the PowerLab and the application.
Figure 2–3
Accessing the
pH Amp dialog:
LabChart on the left,
Scope on the right