BC Biomedical CQM-2000 Series, User Manual

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1
This manual covers the model CQM-2000 and CQM-2100 REM/ARM/CQM Test Module.
The term CQM-2000 will be used to apply to both models. Sections specific to the CQM-
2100 model will use the term CQM-2100 exclusively.
The CQM-2000 is used to test the Return Electrode Contact Quality Monitor of an
Electrosurgical Unit. The CQM-2000 provides an adjustable resistance from 0 to 210
ohms in 1 ohm increments. The CQM-2100 provides an adjustable resistance from 0 to
1110 ohms in 1 ohm increments.
The internal switches are ‘make-before-break’ type to
ensure that the CQM circuit in the DUT does not see a momentary open condition.
To Operate the Unit:
•
Connect the DUT Return electrodes to the CQM-2000 Test Jacks.
•
Set the Resistance using the knobs on the CQM-2000 Front Panel.
Many ESUs measure a baseline resistance as the CQM connector is plugged in.
The DUT should alarm based on the following conditions:
•
If the Resistance is too low, a CQM alarm should occur.
•
If the Resistance is too high, a CQM alarm should occur.
•
If the Resistance changes some percentage above or below the baseline
resistance, a CQM alarm should occur.
Baseline Resistance limits and percent resistance rise limits vary based on ESU
manufacturer. Consult DUT manual for these parameters.
BC BIOMEDICAL
CQM-2000 Series
REM/ARM/CQM TEST MODULE