Candela AlexTriVantage, Operator'S Manual

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8501-00-1800, Revision 05 Confidential 8-5
Candela Corporation AlexTriVantage Laser System
3. Carefully follow the prompts at the bottom of the screen.
There are two typical prompts displayed.
Pulse HP in OPHIR (expect ~ .500). Pulse Laser and Enter Ophir Data .
This means to aim the handpiece (HP) to pulse the laser into the external
Ophir meter head and then enter the Ophir energy (in this case the expected
OPHIR reading should be within .500 Joules) using the keypad that will pop-up
after the first laser pulse.
Pulse HP in Calport .
This means to insert the handpiece in the Calport and then pulse the laser.
Make sure that you wait sufficient time (at least 3-5 seconds) between pulses to
allow the software to measure the energy properly.
The laser software will automatically set internal parameters and prompt the
technician to pulse the laser while directing the delivery system output into the Ophir
meter or the Calport as the calibration progresses. When pulsing into the Ophir, a
keypad will pop up so that the technician can enter the Ophir reading (If the Ophir
doesn't read any energy, then enter a "0".) All entries into the pop up keypad must
be entered in Joules (J). The keypad has a fixed decimal point and accepts entries
as follows:
Example 1: If the meter is reading 0.769J, the technician will enter 769 into
the keypad. This will appear as 0.769 on the keypad.
Example 2: If the meter is reading 2.20J, the technician will enter 4350 (must
add the "0" at the end to make it J). This will appear as 2.200 on the keypad.
If the laser software is prompting for the technician to pulse into the Calport and the
laser is mistakenly pulsed into the Ophir, a "PreGain Error" may occur. If this error
or any other error happens, restart the procedure
4. The software will prompt the technician with "Circuit Cal Successful" when it is
complete.
5. Press the CAL Factors tab. If the PreGain for HD1 or HD2 show 150 or 100
respectively with a b factor of 0, then the calibration was not completed successfully
and needs to be restarted. If the PreGain for CP shows 12 or 7 with a b factor of 0,
then the calibration was not completed successfully and needs to be restarted.
6. Press the CAL Test tab. Press the Ckt Cal Test button. Ensure that all Pass/Fail
indicators for HD1, HD2 and CP (in the Sts Column) show "PPPP". If these do not
show "P", then the Circuit CAL needs to be restarted.
Final Verification of User Calibration Energy
The final step is to complete some user calibrations and to verify the energy is within
specification.
1. Press the Exit MM button. This will return the user to the Main Screen.
2. Complete the Calibrations Table using the specified spot size, fluence, and pulse width
(See Table 9.1 on the next page). After each Calibration, pulse 3 times into the Ophir
meter. Record each Ophir energy reading.
3. Note that on entry to Ready State (Ready Button pressed or started CAL), if a fault
18.1 appears, then the Circuit CAL was not completed successfully and needs to be
repeated.
4. Calculate the average Ophir energy using the table and then the percentage difference
from the expected energy.