14
Note
before testing human eyes, should adjust the level of the patient eyes to make sure they look
directly at the device. Missing of this step will influence the accuracy of the test results.
If there is smoke or any other strage smells coming from this device during use, turn off the
device and umplug immediately. Wait till there is no more smoke or smells and then contact
us or our authorized distributors. Continue to use the device under this circumstance will
cause fire or electric shock.
Turn off the device when not using. If the device keep operating during a long time will
influence the life of the device.
Before test and operation of the device, please check carefully. If there is any abnormities, do
not use the device. Keep using the device under this condition will influence the accuracy if
the test results or cause other unexpected misfunction, wrong dignose or other harm.
Only to use this device by qualified person or under the guaidance of such person.
2.4 Precautions after use
Note
If not using the device for a long time, please turn off and unplug it. Fallouts may collect
water in the environment and causing short circuit or fire.
Clean the plug pins with dry clean cloth occassionly. Dust on the plug pin may collect wwater
and cause short circuit or fire.
Do not unplug the device violently. This may broke the metal wires and casue electric shork,
short circuit or fire.
2.5 Device check and maintain
Warning
Any repair or maintainence shall be conducted by the person trained by Ming Sing Optical
R&D CO.,Ltd and can operate the device correctly and has experience with it.
Removal of the safety screw may cause the device fall off from the support arm and cause
severe harm.
Do not open the cover and try to repair any inner parts. The repair service must be conducted
by trained personnel of MSOC or its authorized distributor.
The calibration or adjustment of the device must be done by MSOC technicians ot other
authorized person.
The operation of thechart display must follow the user manual. Failure to operate the device
in the correct method may endanger patient safety or cause device misfunction.
Note
Do not use solvent or strong cleaning agent on any part of the device. It may damage the
device.
Do not use organic solvent, such as paint thinner to clean the device. It may damage the
device surface.
