Chattanooga Group 2738, Service Manual

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Intelect Transport® Combo Therapy System
5.7 ELECTRICAL STIMULATOR TEST SYSTEM SETUP
The following tests for Stimulator Outputs will be
performed on Channels 1 and 2.
A. Equipment Required
ESTI-2 Load Test Box
Calibrated Oscilloscope and Probes
B. System Set Up
1. Install known good Lead Wires to Channels 1
and 2 on the system. See Figure 5.2.
2. Connect Lead Wires from the system to the
ESTI-2 Load Test Fixture. Channel 1 to
Channel 1 IN and Channel 2 to Channel 2
IN. See Figure 5.3.
3. Connect Scope Probes to the Channel 1 To
SCOPE and Channel 2 To SCOPE Tabs on the
ESTI 2 Load Test Fixture respectively. See
Figure 5.3.
4. Place ESTI-2 Load Switch in the 1 K position.
See Figure 5.3.
5. Install Power Cord into system and plug into
proper Power Supply. Turn system On.
NOTE:
The ESTI - 2 Load Box, part number 2757, is
used to simulate patient resistance when
testing waveforms. The ESTI - 2 is set up
for both a 1K and 10K load. The 10K load
is used for Microcurrent only which is not
available on this unit.
See Figure 5.4.
•
•
FIGURE 5.2
FIGURE 5.3
LOAD SWITCH TO 1 K
SCOPE TO
ESTI2
THERAPY SYSTEM TO
ESTI2
5 TROUBLESHOOTING
The ESTI - 2 Load Box contains a 10 watt resistor
which is not meant for continuous operation. Do
not run the ESTI - 2 Load Box continuously.
CHANNEL 1
TO SCOPE
CHANNEL 2
TO SCOPE
CHANNEL2
LEADWIRE
CONNETORS
MICROCURRENT
PROBE CONNECTION
NOT USED
CHANNEL 1
LEADWIRE
CONNETORS
LOAD SWITCH
1K 10K
OHM MICRO
COMBO
INDICATOR
COMBO
CONTACT
FIGURE 5.4