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USER'S MANUAL
DUAL OUTPUT MODE
In this mode of operation, the user sets up two waveforms
and two output voltages. The first waveform entered
is called the primary waveform and is the one activated
when you first press the anode pole switch. The secondary
waveform is entered second and is activated from the
primary waveform by releasing and then pressing the
anode pole switch again in less than one second. The pulse
type, output voltage, frequency, and duty cycle for both
the primary and secondary waveforms are set in a straight
forward manner, using the front panel keys. This feature
quickly allows the user to change the output of the LR-24.
Users may wish to do this if, for example, they are working
with juveniles and you suddenly come across an adult.
The primary waveform is indicated by a higher tone than
the secondary waveform, so it is always easy to tell which
waveform the LR-24 is producing. The primary waveform
is indicated by a high-pitched (2.9KHz) tone. The LR-24
indicates when the user changes to the secondary
waveform by changing to a lower-pitched (1.9KHz) tone.
Releasing the anode pole switch for more than one second
and then pressing it again will cause the LR-24 to toggle
back to the primary waveform.
The following procedure will guide you through setting up
Dual Output Mode:
1. Press the Menu key and use the Arrow keys to scroll to the
Dual Power Mode (On/Off) option. Press the Enter key
(
Fig. 5.22
).
2. Press the Pulse Type key and use the Arrow keys to scroll
to the waveform type you want to use for the primary
waveform, then press the Enter key. The available wave-
form types of the LR-24 are: Direct Current (non-pulsed),
Standard pulse, and Burst of pulses (
Fig. 5.23
).
3. Press the Freq. key and use the Arrow keys to scroll to the
desired waveform frequency and then press the Enter key
(
Fig. 5.24
).
4. Press the Duty Cycle key and use the Arrow keys to scroll
to the desired duty cycle and then press the Enter key (
Fig.
5.25
). Note that if Direct Current was selected as the pulse
type, neither frequency nor duty cycle can be selected for
that waveform as these have no meaning for Direct Cur-
rent. If burst of pulses was selected, two frequencies and
two duty cycles must be set.
SECTION 5: SETUP AND OPERATION (CONT.)
System Menu 3/9
Enable Dual Output?
Fig. 5.22
Pulse Type
Standard Pulse
Fig. 5.23
Frequency
30Hz
4mS Pulse Width
Fig. 5.24
Duty Cycle
12%
4mS Pulse Width
Fig. 5.25
Continues on next page...
SECTION 5