Periodical Maintenance - TB-Electronics Frequency Synthesizer F-SCAN2 Instruction Manual

Periodical Maintenance

F-SCAN 2 is a medical device. Inspection and tests must be performed by a professional
with adequate test equipment. Dated and signed record (see form on next page) of the
periodical maintenance must be kept with the unit.
1.1 Visual inspection
1.1.1 Check power supply and cable (connectors and insulation)
1.1.2 Check touch screen (dirt and scratches)
1.1.3 Check connectors, switch and application parts (unbroken and clean)
1.2 Functional tests
Use oscilloscope with digital readout to verify all outputs:
1.2.1 Connect power supply to an outlet, check software version
1.2.2 Verify all input fields on the touch screen
1.2.3 Connect application cable and electrodes
1.2.4 Select tab THERA and "1 2 3"
1.2.5 Enter frequency of 1,000Hz and touch "GO"
1.2.6 Connect oscilloscope to OUTPUT and measure frequency and peak-
1.2.7 Touch "RECTANG". The frequency must not change. The amplitude
1.2.8 Set the switch to it's bottom position. The frequency must not change.
1.2.9 Touch "5 VOLT". The frequency must not change. The amplitude must
1.2.10 Connect oscilloscope to PowerPort. The values of frequency and
1.2.11 Connect DIRP simulator to OUTPUT and SENSOR. Select DIRP and
to-peak voltage swing: The displayed frequency must be 1,000Hz ±
0.1Hz, the voltage must be 11Vpp ± 1.5V. The wave form must be
SINE, positive DC-OFFSET.
must be adjustable with the potentiometer between 0V and 27Vpp.
The wave form must be square FULL WAVE.
The amplitude must be adjustable with the potentiometer between 0V
and 13.5Vpp. The wave form must be square DC-OFFSET.
be 5.0 Vpp ± 0.4 V. The wave form must be square DC-OFFSET.
amplitude must not differ. Amplitude must be 14Vpp ± 1.5V when
device is used with power supply; 6V ± 1V when the battery pack is
used.
run it in the range between 60,000Hz and a higher value. The CV
value on the screen must match the one marked on the simulator ± 1.
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