5
c) Display screen should be able to clear imaging.
d) Digital display complete, stable, no flicker and print legible. Measurement results should
include left and right eye identification, spherical power and cylindrical power, +/-, axis and
degree, etc.
e) Auto ref/keratometer has the function of printing test results.
f) Optical radiation shall comply with the applicable requirements of ISO15004-2.
5 Under the working conditions, the noise should not be greater than 55dB (A).
6 The surface temperature of the device is not more than 15℃.
7 Safety requirements shall comply with the requirements of GB9706.1.
8 The test environment shall be consistent with the requirements of the mechanical test
environment II group in GB/T14710-1993.
9 The Device for external connection with Auto ref/keratometer shall comply with the
requirements of GB9706.1.
2. Safety precautions
2.1 Safety identification
In this manual, signal words are used to designate the degree or level of safety alerting.
The definitions are as follows.
CAUTION: Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury or property damage
accident.
Even situations indicated by CAUTION may result in serious injury under certain conditions.
Safety precautions must be strictly followed at all times.
2.2 Safety precautions before use
The safety precautions and operating procedures must be thoroughly understood prior to
operation of the device. Use of the device outside the scope of this manual may cause
adverse events.
Do not open shell and do not touch the interior of the device. This may cause electric shock
Install and use the device in an environment that meets the following conditions.
Temperature：10℃ - 40℃
Humidity：≤80%
Atmospheric pressure：760hPa - 1060hPa
A room with low dust and little light
A location free from vibration and shock
--- If the device is not installed and used under the above conditions, the reliability of
To Next Page
Loading...