Johnson & Johnson ETHICON ENDO-SURGERY HARMONIC 300, Service Manual

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57
GEN04
Chapter 13 - Generator Calibration
Required Schedule
Calibration is required on the U
LTRA
C
ISION
H
ARMONIC
S
CALPEL
Generator 300 every twelve months .
Proof of calibration should be documented according to hospital procedures.
Generators can be returned to Ethicon Endo-Surgery, Inc. for calibration, but this is not covered in the
warranty. A minimal charge will be assessed. This can be done by calling 1-800-USE-ENDO (U.S.
Customers). International Customers should contact their Ethicon Endo-Surgery, Inc. representative for
assistance.
Calibration Procedures
Complete the following Calibration procedures every 12 months according to hospital procedures.
Caution : Use proper hospital safety procedures when performing a calibration.
For best accuracy, take the measurements required in step 16 and step 27 of the procedure ONLY as
follows:
One test lead of the DMM touching R234 on the side that doesn’t connect to R233. This lead will need to be
held in place manually as there is nothing to connect an alligator clip to. (For best accuracy, do not clip to
C177 or any other node connection point on the circuit board.) The second test lead can be clipped to R229 on
the lead that is connected directly to R233.
There are two calibration sub-processes that must be executed in the following order:
•
Calibration One
• Calibration Two
Calibration One (Write Current Calibration)
This section describes the requirements for calibrating the output current level of the generator.
Minimum Accuracy Requirements:
• True RMS AC Voltage (Voltage Range 100mV to 1000mV, 23°C +/- 5°C):
• 3hz - 5hz: 1.00%of r 0.04% of range
• 5hz - 10hz: 0.35% of r 0.04% of range
• 10hz - 20Khz : 0 .06% of r 0.04% of range
• 20Khz - 50 Khz 0.12% of r 0.04% of range
• 50Khz - 100Khz: 0.60% of r 0.08% of range
• 100Khz - 300 Khz: 4.00% of r 0.50% of range
Note : For best accuracy, take the measurements required in step 16 and step 27 of the procedure ONLY as
follows:
One test lead of the DMM touching R234 on the side that doesn’t connect to R233. This lead will need to be
held in place manually as there is nothing to connect an alligator clip to. (For best accuracy, do not clip to C177 or any
other node connection point on the circuit board.)
The second test lead can be clipped to R229 on the lead that is connected directly to R233.
Note: “Power up into BME Mode” includes taking the following steps:
• Power down unit
• Wait 5 seconds
• Power up Unit while simultaneously holding the “STANDBY” and “DOWN ARROW” keys
Procedure:
1 Remove the generator cover.
2 Connect the foot switch assembly to the generator or mount the hand switching adapter onto the hand piece.
3 Connect the hand piece to the generator.
4 Attach a test tip to the hand piece, and torque on using a torque blade wrench.
5 Power up the generator into BME Mode.