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General| Working Distance | 12mm |
|---|---|
| Type | Auto Refractor Keratometer |
| Measurement Range (Axis) | 1° ~ 180° |
| Corneal Curvature Radius | 5.0mm ~ 10.0mm |
| Corneal Refraction | 33.75D ~ 67.50D |
| Corneal Astigmatism | 0D ~ 15D |
| Measurement Accuracy (Refraction) | ±0.25D |
| Measurement Accuracy (Keratometry) | ±0.05mm |
| Measurement Diameter (Refraction) | φ3.0mm |
| Measurement Diameter (Keratometry) | Ø3.0mm |
| Power Supply | AC 100V ~ 240V, 50/60Hz |
| Pupil Diameter Measurement Range | 2.0mm ~ 9.9mm |
| Measurement Range (Keratometry) | 5.0mm ~ 10.0mm (Radius), 33.75D ~ 67.50D (Refraction) |
Specifies the intended application of the HRK-1 device for eye refractive power measurement.
Provides a general description of the HRK-1's features and measurement capabilities.
Details product classification, relevant standards, and mentioned items.
Emphasizes the importance of safe device operation for all users and managers.
Explains various safety symbols used in the manual and on the device for hazard warnings.
Outlines environmental conditions for operation, storage, and transport to ensure proper function.
Lists essential safety measures to be followed during device installation and operation.
Identifies and describes major components of the HRK-1 device including front, back, and lower parts.
Explains the functions of various buttons on the main measurement screen interface.
Details steps for unlocking the device's stage and body locks for installation readiness.
Guides on connecting the power cable and fitting the chin rest paper for use.
Covers print paper attachment and initial data transmission configuration steps.
Steps for powering on the device and selecting the initial measurement mode.
Instructions for adjusting the patient's height for optimal measurement alignment.
Procedures for aligning the device and focusing on the patient's eye for accurate readings.
Details REF manual and auto modes, including message lists and printing.
Details KER manual and auto modes, including message lists and printing.
Covers manual and auto operations for the combined K&R measurement.
Covers filters, LEDs, image capture, viewing, and returning to main mode.
Guide for measuring pupil diameter using the SIZE mode.
Covers arrangement, observation, saving, and importing retro-illumination images.
Functionality for viewing saved measurement results and data management.
Guide for adjusting various device settings like communication and display.
Describes procedures for text and number input on the device interface.
Procedure for checking the accuracy of REF and KER measurements using a model eye.
Instructions for replacing printer paper and chin rest paper.
General guidelines and methods for cleaning the device and its parts.
Detailed cleaning instructions for measuring window, mire ring, and contact surfaces.
Steps to resolve common issues and error messages before seeking professional support.
Guidelines for safely moving the device to a new location, including locking procedures.
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