Digitimer DS5 - Configuring the DS5; Input;Output Configuration

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DS5 Isolated Bipolar Constant Current Stimulator DS5 Operator's Manual 5.0

Configuring the DS5

Configuration changes are made via the options menu which is accessed from the main operating screen by

pressing the F1 key, indicated by the icon. To access this menu the stimulator output must be

disabled using the orange toggle switch and it will be necessary to re-enable the output before another

stimulation protocol can commence. The options menu presents the operator with a scrollable list of menu

choices (F3 key for up and F4 key for down). When an item of interest is identified, it can be selected using

F1 ( ). When required, F2 ( ) allows the operator to exit to the main operating screen.

Figure 3.3 Typical DS5 Options Menu Displays

Most of the choices in the options menu provide the operator with an opportunity to modify the default

settings of the DS5. The various choices are further described below and should be carefully defined before

the DS5 is connected to any external devices or subjects.

Defining the Required Input Voltage Range

Full scale input voltage ranges are selectable between ±1V, ±2.5V, ±5V

and ±10V so that the DS5 can be configured to interface with a range of

signal generating hardware devices such as data acquisition interfaces

with D/A outputs. F3 and F4 scroll through the choices and F1 confirms

the selection and returns to the main Options Menu.

Defining the Required Output Current Range

The full scale output current ranges are selectable between ±10mA,

±25mA and ±50mA. This allows the operator to limit the output to a

lower range when carrying out studies which require a lower stimulus

amplitude. F3 and F4 scroll through the choices and F1 confirms the

selection and returns to the main Options Menu.

Adjusting the Display Contrast

The LCD screen display contrast can be increased or decreased to suit the

user. F3 and F4 are used to scroll through the choices, while repeated

pressing of F1 will increment a change in contrast. A default setting is

available if required. F2 confirms the choice and returns to the main

options menu.

Turning the LCD Backlight On and Off

This menu item allows the operator to turn off the LCD backlight if it is not

desired. F3 and F4 scroll through the parameter choices. F1 accepts the

hi-lighted setting and exits to the main options screen.