2
SAFETY PRECAUTIONS: Usage Precautions
1.2
Usage Precautions
Safety of LED
Before use
CAUTION
• The device is a Class 1 LED product and the LED used for the device is safe under expected use
conditions including situations such as looking into the LED using an optical system. However, it is
recommended to observe the following precautions when using the device:
•
Do not direct LED beams to human eyes when unnecessary.
•
Do not look into the measuring window (LED light-emitting section) for a prolonged time.
•
If the device cannot be used appropriately or any device problem cannot be solved, stop using the
device immediately, and contact NIDEK or your authorized distributor.
WARNING
• Connect the power plug to a grounded outlet.
Electric shock or fire may occur in the event of malfunction or power leakage.
CAUTION
• Do not use this device for any purposes other than the intended purpose.
NIDEK is not responsible for accidents or malfunctions caused by misuse.
• Be sure to read the operator’s manual prior to operation of the device to understand the safety pre-
cautions and operating procedures thoroughly. Use the accessories specified by NIDEK only.
Use of the device outside the scope of this manual may cause adverse events.
• Do not modify the device and do touch the interior of the device.
There are no parts within the device that requires servicing by the user other than printer paper.
• Install the device in an environment that meets the following conditions.
The following conditions must be maintained during use.
Ambient temperature: 10 to 35°C (50 to 95°F)
Humidity: 30 to 90% (Non-condensing)
Atmospheric pressure: 800 to 1,060 hPa
A location with low dust
A location not exposed to water
A location with little external light
A level and stable surface free from vibration and shock
If the device is not installed and used under the above conditions, the reliability of measured results is
impaired, and malfunction may result. In addition, there is a possibility of injury if the device receives
shock and falls down.
• Avoid installing the device near sunny window or directly under a light.
Intense light entering the measuring window may interfere with proper measurement.
• Avoid installing the device where it is exposed to direct air-conditioning flow.
Changes in temperature may result in condensation inside the device or adversely affect measure-
ments.
• Be sure to use a (HOSPITAL GRADE) power outlet which meets the power specification require-
ments.
The device may not perform properly, or malfunction or fire may occur.
Summary of Contents for ARK-1S
Page 1: ...AUTO REF KERATOMETER AUTO REF KERATOMETER ARK 1s ARK 1s OPERATOR S MANUAL OPERATOR S MANUAL ...
Page 6: ...IV ...
Page 76: ...70 OPERATING PROCEDURE Operation when Peripheral Devices are Connected ...
Page 112: ...106 SPECIFICATIONS AND TECHNICAL INFORMATION EMC Electromagnetic Compatibility ...