Nidek Medical TONOREF II User Manual (English)

Other manuals for Nidek Medical TONOREF II

Questions and Answers:

K
Karen JohnsonAug 19, 2025
What to do if the auto-tracking function doesn't work on Nidek Medical TONOREF II?
- D
  Dominique BennettSep 12, 2025
  If the auto-tracking or auto shot function isn't working on your Nidek Medical Measuring Instruments, here's what you can do: * Ensure the auto-tracking or auto shot function is turned on using the auto button. * If room illumination is reflecting on the cornea, change the location and try measurement again. * If the patient has conditions like keratoconus or has recently undergone corneal surgery, these functions may not work. Turn off the auto-tracking function and start measurement. * If the patient has substantial ocular ataxia or cannot fixate their eyes, turn off the auto-tracking function and start measurement. * If the device is near a window exposed to sunshine, relocate it to avoid light interference.
S
Shelby MooreAug 21, 2025
What to do if a measurement error appears on Nidek Medical TONOREF II?
- V
  Victoria ChapmanAug 21, 2025
  If you encounter a measurement error with your Nidek Medical Measuring Instruments, consider the following: * The patient may have blinked. Instruct them to avoid blinking during measurement. * Eyelids or eyelashes might be obstructing the measurement. Ask the patient to open their eyes wider, or gently lift the eyelid, being careful not to press on the eyeball. * If the pupil is too small, have the patient sit in a dark room to allow pupil dilation, then try again. * Ensure the patient is looking at the fixation lamp. * The data may exceed the measurable limit.
B
Brittany BurtonAug 23, 2025
What to do if data is not printed out from Nidek Medical TONOREF II?
- K
  Keith ValenciaAug 25, 2025
  If data isn't printing from your Nidek Medical Measuring Instruments, check these points: * Ensure the printer has paper. If it's empty, load new paper. * Verify that the '31. PRINT' parameter is not set to 'NO'. If it is, reset the parameter.
T
Travis BennettAug 26, 2025
Why is the LCD display not turning on for Nidek Medical TONOREF II?
- A
  Andrew SanchezAug 26, 2025
  If the LCD display on your Nidek Medical Measuring Instruments isn't turning on, check the following: * Make sure the power cord is securely connected. Reconnect it if necessary. * Verify that the power switch is turned on.
G
gardnerkarenAug 27, 2025
What to do if Nidek Medical TONOREF II printer paper does not feed?
- D
  Daniel KentAug 27, 2025
  If the printer paper isn't feeding in your Nidek Medical Measuring Instruments, it might be loaded incorrectly. Open the printer cover and ensure the paper is loaded properly, not tilted, and that the core of the roll is correctly placed.
K
Karen PerezAug 29, 2025
What to do if the main body of Nidek Medical TONOREF II Measuring Instruments cannot be moved laterally?
- W
  Wayne MillerAug 29, 2025
  If the main body of your Nidek Medical Measuring Instruments cannot be moved laterally, the locking lever may be locked. Flip up the locking lever.
M
Melissa WellsAug 31, 2025
What to do if Nidek Medical TONOREF II shows ERROR or NO PAPER even with paper loaded?
- P
  Peter CurrySep 1, 2025
  If your Nidek Medical Measuring Instruments displays “ERROR” or “NO PAPER” even when paper is loaded: * Ensure the printer cover is securely closed. Open and then securely close it. * Avoid pressing the print button immediately after closing the printer cover, as the printer needs time to get ready.
A
Amy GreerSep 3, 2025
Why do measurement values differ on Nidek Medical TONOREF II?
- L
  Laura CookeSep 3, 2025
  If you're getting different measurement values on your Nidek Medical Measuring Instruments, it could be due to the patient moving their visual line. Instruct them to focus on the fixation chart (center of the scenery chart for AR, KM measurements; fixation lamp for NT measurement). For patients who struggle to maintain their visual line, turn off the auto shooting function and manually press the start switch when their visual line is correct.
R
Ryan StewartSep 5, 2025
What to do if Nidek Medical TONOREF II Measuring Instruments prints 'CHECK MEASURING WINDOW' at start-up?
- D
  Douglas LopezSep 5, 2025
  If your Nidek Medical Measuring Instruments prints “CHECK MEASURING WINDOW” at start-up: * Clean the measuring window. * If the window is clean, ensure it's not blocked during start-up.
V
Veronica WoodsSep 7, 2025
What to do if the Nidek Medical TONOREF II Measuring Instruments printer operates but doesn't produce results?
- C
  conradhollySep 7, 2025
  If the printer on your Nidek Medical Measuring Instruments is running but not producing results, the printer paper may be loaded with the wrong side up. Ensure it's loaded with the correct side facing up.

Nidek Medical TONOREF II Specifications

General

Axis	1 to 180°
Accuracy (Automated dynamic contour tonometry)	±1 mmHg
Display	Color LCD touch screen
Power Supply	AC 100 to 240V, 50/60 Hz
Type	Auto Ref/Keratometer/Tonometer

Summary

1. BEFORE USE

1.1 Outline of the Device

Provides a general overview of the TONOREF II's functions and features.

1.2 Intended Use

Specifies the intended applications for the TONOREF II device.

1.3 Principles

Explains the scientific principles behind objective refraction, corneal curvature, and tonometry.

1.4 Device Description

Details the physical components and layout of the TONOREF II device.

Front view

Illustrates and labels the front-facing components of the device.

Rear view

Illustrates and labels the rear-facing components of the device.

Bottom view

Illustrates and labels the bottom-facing components of the device.

1.5 Measurement Screen Description

Explains the various elements displayed on the R/K and NT measurement screens.

1.5.1 R/K measurement screen

Details the display elements for Refractive Error/Corneal Curvature measurements.

1.5.2 NT measurement screen

Details the display elements for Non-Contact Tonometry measurements.

1.6 Labels and Indications on the Device

Explains the meaning of various labels and symbols on the device.

1.7 Checking Contents

Lists the items included in the standard configuration of the device.

1.8 Before First Use

Provides instructions for initial setup and preparation before operating the device.

2. OPERATING PROCEDURE

2.1 Operation Flow

Outlines the general sequence of operations for using the device.

2.2 Preparation for Measurement

Details the steps required to prepare the device and patient before measurement.

2.2.1 Measuring window check for soiling and puffed air pressure check during startup

Explains automatic checks for device cleanliness and air pressure before operation.

2.2.2 Switching between R/K measurement and NT measurement

Describes how to switch between different measurement modes (R/K and NT).

2.3 Finishing the Measurements

Covers procedures for safely shutting down and completing operations.

2.3.1 Normal shutoff

Explains the standard procedure for turning off the device.

2.3.2 Shutoff before transporting the device

Details the specific shutdown process required for device transportation.

2.4 Selecting the Mode

Guides the user on how to choose different measurement modes and settings.

2.5 AR (refractive error) and KM (corneal curvature radius) Measurements

Describes the procedures for performing refractive and corneal curvature measurements.

2.5.1 AR (refractive error) and KM (corneal curvature radius) measurements: AR/KM measurement mode

Details the process for combined AR and KM measurements.

2.5.2 AR (refractive error) Measurement: AR Measurement Mode

Details the process for performing only AR measurements.

2.5.3 KM (corneal curvature radius) Measurement: KM Measurement Mode

Details the process for performing only KM measurements.

2.5.4 CS (Corneal Size) Measurement

Explains how to measure the corneal size.

2.5.5 PS (Pupil Size) Measurement

Explains how to measure the pupil size.

2.5.6 PD (Pupillary Distance) Measurement

Explains how to measure pupillary distance.

2.5.7 Measuring Hard Contact Lenses

Guides on measuring hard contact lenses using the device.

2.6 NT (Tonometry) Measurement: NT Mode

Details the procedures for performing Non-Contact Tonometry.

2.6.1 Eyelid detection mode

Explains the function and use of the eyelid detection mode.

2.7 Printing

Covers the various methods and options for printing measurement data.

2.7.1 Printing measured data

Explains how to print the collected measurement results.

2.7.2 Eyeprint

Describes how to print the eyeprint view of measured data.

2.7.3 Printing parameter settings

Explains how to print the current device parameter settings.

2.8 Parameter Settings

Details how to configure various operational parameters of the device.

2.8.1 Parameter tables

Provides a comprehensive list and description of device parameters.

2.8.2 Setting Network function

Guides on configuring network (LAN) connectivity for data transfer.

2.8.3 Setting the date and time

Explains how to set the device's internal clock and date format.

2.8.4 Entering comments

Guides on how to input custom comments for printing.

3. OPERATION WHEN PERIPHERAL DEVICES ARE CONNECTED

3.1 Connecting to the NIDEK Motorized Refractor (RT)

Details how to connect the device to a NIDEK Motorized Refractor.

3.1.1 Outline

Provides a general overview of data export to the RT.

3.1.2 Connecting procedure

Describes the physical steps to connect the RT.

3.1.3 Operating procedure

Explains the steps to perform after connecting the RT.

3.2 Connecting to the NIDEK Auto Lensmeter (LM)

Details how to connect the device to a NIDEK Auto Lensmeter.

3.2.1 Outline

Provides a general overview of LM data import and export.

3.2.2 Connecting procedure

Describes the physical steps to connect the LM.

3.2.3 Operating procedure

Explains the steps to perform after connecting the LM.

3.3 Connecting to Computer

Guides on connecting the device to a computer for data management.

3.3.1 Outline

Provides a general overview of computer connectivity.

3.3.2 RS-232C connection

Details the procedure for connecting via RS-232C cable.

3.3.3 Network connection (LAN)

Details the procedure for connecting via LAN.

3.4 Connecting to the Eye Care Card System

Guides on connecting the device to the Eye Care Card System.

3.4.1 Outline

Provides a general overview of data transfer via Eye Care card.

3.4.2 Method of connection

Describes the physical steps to connect the Eye Care Card System.

3.4.3 Transferring data with the EyeCa-RW

Explains the process of writing data to the Eye Care card.

3.4.4 Erasing data on the Eye Care card

Guides on how to erase data from the Eye Care card.

3.5 Connecting Barcode / Magnetic Card Reader

Details how to connect barcode or magnetic card readers.

3.5.1 Outline

Provides a general overview of connecting readers.

3.5.2 Connecting procedure

Describes the physical steps to connect readers.

3.5.3 Operating procedure of barcode / magnetic card reader

Explains how to use barcode/magnetic card readers with the device.

4. MAINTENANCE

4.1 Troubleshooting

Provides solutions for common operational problems and errors.

4.2 Error Messages and Countermeasures

Lists specific error codes and their corresponding solutions.

4.3 Replacing Printer Paper

Explains the procedure for replacing the printer paper roll.

4.4 Fixing Chinrest Paper

Guides on how to attach new chinrest paper.

4.5 Checking the AR/KM Measurement Accuracy

Details how to verify the accuracy of AR/KM measurements.

4.6 Cleaning

Provides instructions for cleaning various parts of the device.

4.6.1 Cleaning the measuring window

Explains how to clean the device's measuring window.

4.6.2 Cleaning the air nozzle

Explains how to clean the air nozzle.

4.6.3 Cleaning the printer

Guides on how to clean the printer mechanism.

4.6.4 Cleaning forehead rest and chinrest

Explains how to clean patient contact surfaces.

4.7 List of Replacement Parts

Lists consumable parts that can be replaced.

5. SPECIFICATIONS AND ACCESSORIES

5.1 Classifications

Details the device's safety classifications and standards compliance.

5.2 Safety Features

Describes the built-in safety mechanisms of the device.

5.3 Specifications

Lists the technical specifications for various measurement functions.

5.4 Standard Configuration

Lists the standard accessories included with the device.

5.4.1 Standard accessories

Lists the standard accessories included with the device.

5.4.2 Optional accessories

Lists optional accessories available for purchase.

6. EMC (ELECTROMAGNETIC COMPATIBILITY)

O Specified cable

Lists cables specified for EMC compliance.

O Essential performance

Lists essential performance functions.

7. GLOSSARY

Common terminology

Defines general terms used in the manual.

Terminology related to the AR/KM measurement

Defines terms specific to AR and KM measurements.

Terminology related to the NT measurement

Defines terms specific to NT measurements.

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Nidek Medical TONOREF II User Manual

Table of Contents

Other manuals for Nidek Medical TONOREF II

Questions and Answers:

Nidek Medical TONOREF II Specifications

Summary

1. BEFORE USE

1.1 Outline of the Device

1.2 Intended Use

1.3 Principles

1.4 Device Description

Front view

Rear view

Bottom view

1.5 Measurement Screen Description

1.5.1 R/K measurement screen

1.5.2 NT measurement screen

1.6 Labels and Indications on the Device

1.7 Checking Contents

1.8 Before First Use

2. OPERATING PROCEDURE

2.1 Operation Flow

2.2 Preparation for Measurement

2.2.1 Measuring window check for soiling and puffed air pressure check during startup

2.2.2 Switching between R/K measurement and NT measurement

2.3 Finishing the Measurements

2.3.1 Normal shutoff

2.3.2 Shutoff before transporting the device

2.4 Selecting the Mode

2.5 AR (refractive error) and KM (corneal curvature radius) Measurements

2.5.1 AR (refractive error) and KM (corneal curvature radius) measurements: AR/KM measurement mode

2.5.2 AR (refractive error) Measurement: AR Measurement Mode

2.5.3 KM (corneal curvature radius) Measurement: KM Measurement Mode

2.5.4 CS (Corneal Size) Measurement

2.5.5 PS (Pupil Size) Measurement

2.5.6 PD (Pupillary Distance) Measurement

2.5.7 Measuring Hard Contact Lenses

2.6 NT (Tonometry) Measurement: NT Mode

2.6.1 Eyelid detection mode

2.7 Printing

2.7.1 Printing measured data

2.7.2 Eyeprint

2.7.3 Printing parameter settings

2.8 Parameter Settings

2.8.1 Parameter tables

2.8.2 Setting Network function

2.8.3 Setting the date and time

2.8.4 Entering comments

3. OPERATION WHEN PERIPHERAL DEVICES ARE CONNECTED

3.1 Connecting to the NIDEK Motorized Refractor (RT)

3.1.1 Outline

3.1.2 Connecting procedure

3.1.3 Operating procedure

3.2 Connecting to the NIDEK Auto Lensmeter (LM)

3.2.1 Outline

3.2.2 Connecting procedure

3.2.3 Operating procedure

3.3 Connecting to Computer

3.3.1 Outline

3.3.2 RS-232C connection

3.3.3 Network connection (LAN)

3.4 Connecting to the Eye Care Card System

3.4.1 Outline

3.4.2 Method of connection

3.4.3 Transferring data with the EyeCa-RW

3.4.4 Erasing data on the Eye Care card

3.5 Connecting Barcode / Magnetic Card Reader

3.5.1 Outline

3.5.2 Connecting procedure

3.5.3 Operating procedure of barcode / magnetic card reader

4. MAINTENANCE

4.1 Troubleshooting

4.2 Error Messages and Countermeasures

4.3 Replacing Printer Paper

4.4 Fixing Chinrest Paper

4.5 Checking the AR/KM Measurement Accuracy

4.6 Cleaning

4.6.1 Cleaning the measuring window

4.6.2 Cleaning the air nozzle

4.6.3 Cleaning the printer