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Huvitz HNT-1 Troubleshooting Manual
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Huvitz HNT-1 Troubleshooting Manual

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HNT-1/1P
Troubleshooting
2018 . 10 . 02 (r1)
Field Application Department
1/63

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ПРЯДКО ТАТЬЯНА АЛЕКСАНДРОВНА
April 3, 2025

ЧЕМ ОБРАБОТАТЬ АППАРАТ ДЕЗИНФЕКЦИЯ

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1 comments:
Mr. Anderson
April 3, 2025

To disinfect the Huvitz HNT-1 device:

1. Do not use solvents such as strongly volatile substances, thinner, or benzene.
2. Use a soft cloth with soapy water. Wring out the cloth to remove excess water.
3. Wipe each part of the equipment with the damp cloth.
4. For lens or glass parts, remove dust with an air tube and use a dry cloth to clean.

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Summary of Contents for Huvitz HNT-1

  • Page 1 HNT-1/1P Troubleshooting 2018 . 10 . 02 (r1) Field Application Department 1/63...

  • Page 2: Table Of Contents

    Contents 1. Auto Tracking issue 2. Data issue 3. Connection with HRK MATE 4. Assembly & Disassembly 5. Upgrade the software 6. Engineer Setup Mode 2018 . 10 . 02 (r1) Field Application Department 2/63...

  • Page 3: Auto Tracking Issue

    [HNT-1/1P] Auto Tracking issue 1. Auto Tracking issue 2018 . 10 . 02 (r1) Field Application Department 3/63...
  • Page 4 [HNT-1/1P] Auto Tracking issue 1) Specification comparisons 2) Working Range MANUFACTURER NIDEK HUVITZ PRODUCT NT-530P HNT-1/1P HNT-1 and 1P movement range is same with NIDEK’s Y: ±15mm Y: ±15mm tonometer. Motor (Y: ±15mm, X: ±5mm, Z: ±5mm) X: ±5mm X: ±5mm Working Range Z: ±5mm...
  • Page 5 [HNT-1/1P] Auto Tracking issue_Focus Indicator 3) Focus Indicator If the main body unit get out of the working range of auto tracking in the forward and backward, right and left, up and down, the indicator is displayed. Move the joystick lever toward the patient...
  • Page 6 [HNT-1/1P] Auto Tracking issue_Quick guide Reference - We provide the quick guide in the product box to minimize any issues that occur during installation from the 11th of June, 2018 2018 . 10 . 02 (r1) Field Application Department 6/63...
  • Page 7 [HNT-1/1P] Auto Tracking issue_the software 4) Upgrade the Software to the latest version (Over V1.0.4) ※ We highly recommend you to upgrade the software to the latest version (Over V1.0.4). Improvement History Stabilized the Auto-Tracking Stabilized the pachymetry for measuring and image Stabilized the movement of chinrest to avoid being stuck at bottom side Added the Z-axis guide message “Front/Rear”...
  • Page 8 Connect PC to HNT-1/1P with serial cable Pressing the button of joystick, then turn on HNT-1/1P Select “Serial Port” -> “Transmit” menu Choose “HNT-1 / 1P **.bin” file, then press OK button After downloading, turn off and on the HNT-1/1P [The Screen of progress with upgrade] 2018 .
  • Page 9 [HNT-1/1P] Auto Tracking issue 5) How to adjust the LED brightness [Enter the Focus Align Test] Enter the Engineer mode: Press PRINT -> R -> L -> SETUP button on the main screen Press the Focus Align Test 2018 . 10 . 02 (r1)
  • Page 10 [HNT-1/1P] Auto Tracking issue ※ Preparation Before you check the Auto Tracking and Focus related LEDs, prepare the following tools : [REF/KERATOMETER Model-Eye] [HNT Calibration JIG of 30mmHg] 2018 . 10 . 02 (r1) Field Application Department 10/63...
  • Page 11 [HNT-1/1P] Auto Tracking issue ※ Preparation Before you check the Auto Tracking and Focus related LEDs, prepare the following tools : The Plastic Screwdriver is used to rotate the Variable Resistance attached to the Main Board. ※ Normal screwdriver that made of electrically charged material can cause problems when turning variable resistance.
  • Page 12 [HNT-1/1P] Auto Tracking issue_Aiming LED 5) How to adjust the LED brightness [Adjust the brightness for Aiming LED] ※ The REF/KERATOMETER model eye should be used. Check the ASZ parameter and adjust this value if necessary : ASZ: Size (Brightness) --> SIZE: 10~25 / Brightness: over 235.
  • Page 13 [HNT-1/1P] Auto Tracking issue_EXT LED 5) How to adjust the LED brightness [Adjust the brightness for External LED] ※ The REF/KERATOMETER model eye should be used. Check the LUSZ, LDSZ, RUSZ and RDSZ parameter and adjust this values if necessary : LUSZ, LDSZ, RUSZ, RDSZ: Size (Brightness) -->...
  • Page 14 [HNT-1/1P] Auto Tracking issue_PD(APPL) LED 5) How to adjust the LED brightness [Adjust the brightness for PD(APPL) LED] ※ The REF/KERATOMETER model eye should be used Check the Psd_Anode0/1 parameter and adjust this values if necessary : Match the z-ratio to “0.00” --> Psd_Anode0/1: approximately 500~750 - Engineer Setup Mode →...
  • Page 15 [HNT-1/1P] Auto Tracking issue_PD(APPL) LED 5) How to adjust the LED brightness [Adjust the brightness for PD(APPL) LED] ※ Check the Psd_Anode0/1 parameter values without Model-Eye -> Psd_Anode0/1 parameter must be less than 80 if there is no subject to be examined 2018 .
  • Page 16 [HNT-1/1P] Auto Tracking issue_PD(APPL) LED 5) How to adjust the LED brightness [Adjust the APP1 value for PD(APPL) LED] ※ The HNT Calibration JIG of 30mmHg should be used After that, you should check the appl1_val and adjust this if necessary : Match the z-ratio to “0.00”...
  • Page 17 [HNT-1/1P] Auto Tracking issue_PSD and PD Harmess 6) How to arrange PSD and PD Harness [Arrange the PSD and PD Harness] After disassemble the body cover, you may see the combined PSD and PD Harness in the Main Board as shown in the picture below.
  • Page 18 [HNT-1/1P] Auto Tracking issue_PSD and PD Harmess 6) How to arrange PSD and PD Harness [Arrange the PSD and PD Harness] Arrange PSD and PD Harness so that they are not crossed together when combined. (May cause interference in each Harness) 2018 .
  • Page 19 [HNT-1/1P] Auto Tracking issue Reference - If adjusting LED doesn’t make problem solved, please share FA team the photo or video showing problematic symptoms and Focus Align Test values which are measured by model eye - Variable resistor information VR1 AIMING LED...

  • Page 20: Data Issue

    [HNT-1/1P] Data issue 2. Data issue 2018 . 10 . 02 (r1) Field Application Department 20/63...
  • Page 21 [HNT-1/1P] Data issue_the Software V1.0.4 1) Upgrade the Software to the latest version (Over V1.0.4) ※ We highly recommend you to upgrade the software to the latest version (Over V1.0.4). Improvement History Stabilized the Auto-Tracking Stabilized the pachymetry for measuring and image Stabilized the movement of chinrest to avoid being stuck at bottom side Added the Z-axis guide message “Front/Rear”...
  • Page 22 [HNT-1/1P] Data issue_Cleaning 2) How to clean the Air Nozzle and Object lens for Pachy [Clean the Air Nozzle and Object lens for Pachy] Check the Air Nozzle and Object lens for Pachy for any contamination such as dust or oil Gently wipe the glass part with a cotton swab dampened with methanol or absolute alcohol 2018 .
  • Page 23 [HNT-1/1P] Data issue_IOP Offset 3) IOP Offset ① [IOP Offset] - Set the IOP offset value on the Measure Setup Mode ※ If the measured value is uniformly high or low, you can adjust the IOP Offset value to acquire the accurate data.
  • Page 24 [HNT-1/1P] Data issue_Solenoid Control 4) How to do calibration for IOP [Adjust the Solenoid Control parameter] It is recommended that the 'solenoid setup' is confirmed before the IOP calibration Perform the pressure setup using the IOP 30 mmHg Model eye(27 ~ 32 mmHg) Check the Applanation signal In case of the “NG”, increase the Cur2 value to 165 and check again...
  • Page 25 [HNT-1/1P] Data issue_Solenoid Control 4) How to do calibration for IOP [Adjust the Solenoid Control parameter] In case of the “OK”, perform the next procedure - OK : Peak to Valley >= 2 lines Set the pressure value using VR in the Main Board - Minimum value : 200 ->...
  • Page 26 [HNT-1/1P] Data issue_Solenoid Control Reference - Refer to the default Recipe as below [m60] [m30] Cur1 Cur1 Cur2 Cur2 Cur3 Cur3 Time1 1700 Time1 1700 Time2 1240 Time2 1140 Time3 2200 Time3 2200 S time 1900 S time 1900 2018 . 10 . 02 (r1)
  • Page 27 [HNT-1/1P] Data issue_Solenoid Control Reference - Solenoid Recipe Eject Hole Break(Cur4, Time4) Inertia Area Cur2, Time2 Damping Area Division Cur1 Time1 Cur2 Time2 Cur3 Time3 Cur4 Time4 Time for Accelerate Generate Accelerati generation Inertia Return the Description the Air Inertia...
  • Page 28 [HNT-1/1P] Data issue_IOP Calibration 4) How to do calibration for IOP [Execute the calibration for the IOP measurement] Press the table space to start IOP setup - 10 ~ 30 mmHg Model eye setup - Set up in order ...
  • Page 29 [HNT-1/1P] Data issue_IOP Calibration 4) How to do calibration for IOP [Execute the calibration for the IOP measurement] Press the left side “Start” button to automatically track the target Press the measuring button on the joystick or right side “Start” button Shot the solenoid 5 times and display 5 results If setup is done, you have to press “Save”...
  • Page 30 [HNT-1/1P] Data issue_Pachy Calibration 5) How to do calibration for Pachy ① [Purpose] - Set up the pahcy model eye for pachymetry ① [Pachy Cam Gain] - Pachy Camera Gain control - Don’t adjust this value ② [Pachy LED] - Pachy LED brightness control ③...
  • Page 31 [HNT-1/1P] Data issue_Pachy Calibration 5) How to do calibration for Pachy [Execute the calibration for the Pachy measurement] ※ Please verify that the CUR REF value is 1.51 before execute the Pachy calibration Set the model eye in the Model eye holder JIG As shown first image, adjust the HNT-1P position so that the two line signal is visible Press the “Red box”...
  • Page 32 [HNT-1/1P] Data issue_Pachy Calibration 5) How to do calibration for Pachy [Execute the calibration for the Pachy measurement] Move the HNT-1P back and forth so that the two line signal is visible more clearly Press the parameter you want to calibration Set the real model eye value at the “Red box”...
  • Page 33 [HNT-1/1P] Data issue_Pachy Calibration 5) How to do check the Pachy calibration data [Check the Pachy calibration data] 13. After that, you can check whether the calibration is working properly or not 14. Press the Press the parameter you want to check 15.

  • Page 34: Connection With Hrk Mate

    [HNT-1/1P] How to connect HRK MATE 3. Connection with HRK MATE 2018 . 10 . 02 (r1) Field Application Department 34/63...
  • Page 35 1) How to connect the HRK MATE [HNT-1P setting for connection] Connect PC to HNT-1/1P with serial cable Change the COM Out setting to ‘ON’ for Communication to other devices ※ We highly recommend you to upgrade the software to the latest version of V1.0.4 - Improvement: Stabilized the serial communication for transferring data 2018 .
  • Page 36 [HNT-1/1P] How to connect HRK MATE 1) How to connect the HRK MATE [HRK MATE setting for connection] Press the “Setup -> User Options…” Choose the “Port number” and “Show HNT Image” Press the “File -> Connect” and check whether the title is changed from Disconnect to Connect ※...
  • Page 37 [HNT-1/1P] How to connect HRK MATE 2) How to transmit the measurement data [Transmit the measurement data] If you press the “Printer icon” after measuring, you can transmit the data to HRK MATE You can check the measurement data in Patient.
  • Page 38 [HNT-1/1P] How to connect HRK MATE 3) How to transmit the Pachy image [Transmit the Pachy image] Enter the Central Corneal Thickness after measuring Pachy Choose the image that you would like to transmit to HRK MATE Press the “Send button”...
  • Page 39 [HNT-1/1P] How to connect HRK MATE 4) How to transmit the ACA image [Transmit the ACA image] Enter the Anterior Chamber Angle and capture the ACA image Choose the image that you would like to transmit to HRK MATE Press the “Send button”...

  • Page 40: Assembly & Disassembly

    [HNT-1/1P] Assembly & Disassembly 4. Assembly & Disassembly 2018 . 10 . 02 (r1) Field Application Department 40/63...
  • Page 41 [HNT-1/1P] Assembly & Disassembly_Head Rest ASSY 1) How to disassemble the Head Rest ASSY Loosen the four screws and then separate the Head Rest ASSY (1) Separate the two cables Loosen the four screws on the Head Rest cover You can check the components in the Head Rest 2018 .
  • Page 42 [HNT-1/1P] Assembly & Disassembly_Head Rest ASSY 1) How to check the Head Rest ASSY [Check the CR Motor and sensor condition] Enter the Engineer mode: Press PRINT -> R -> L -> SETUP button on the main screen Press the Long Run Test -> C-REST ON -> Loop Start...
  • Page 43 [HNT-1/1P] Assembly & Disassembly_Covers 2) How to disassemble the covers Remove the eight bolt caps and loosen the eight screws and separate the side covers (2) - You need to separate the cable which is connected to Printer board Loosen the four screws and separate the Rear cover (3) Loosen the ten screws on the Moving base covers bottom side and then separate them (4) 2018 .
  • Page 44 [HNT-1/1P] Assembly & Disassembly_LCD ASSY 3) How to disassemble the LCD ASSY and Main board Loosen the two screws on each side (5) Loosen the four screws on the Main board and then separate it Loosen the six screws and then you can disassemble the LCD and LCD Bracket 2018 .
  • Page 45 [HNT-1/1P] Main board wiring diagram Reference - Main board wiring diagram PACHY CMOS EX LED RDY LED Fixation LED OBS CMOS Pressure Sensor X, Y, Z PI PSD Sensor Center PI PD Sensor LCD FFC Cable Measure LED Joy Encoder...
  • Page 46 [HNT-1/1P] Assembly & Disassembly_Optical System ASSY 4) How to disassemble the Optical System ASSY Loosen the four set screws and a screws with ground cable on the side Separate the cable on the CAPACITOR Board You can disassemble the Optical System ASSY (6) 2018 .
  • Page 47 [HNT-1/1P] Assembly & Disassembly_Optical System ASSY 4) How to disassemble the Optical System ASSY You can disassemble the the Pachy Camera ASSY (7) if you loosen the two set screws 2018 . 10 . 02 (r1) Field Application Department 47/63...
  • Page 48 [HNT-1/1P] Optical system Light Path Reference - Optical system Light Path 1. Observation :  2. Aiming light :  3. Fixation  4. Z axis align.  5. Measurement :  6. Pachymeter  2018 . 10 . 02 (r1)
  • Page 49 [HNT-1/1P] Optical system Structure Reference PACHY ASSY - Optical system structure PACHY MIRROR ASSY PACHY MIRROR ASSY External LED PSD LENS ASSY PD MIRROR ASSY PACHY PRISM ASSY OBJECTIVE ASSY FIXATION SOURCE ASSY CAMERA IMGAE LENS ASSY FIX IMAGE ASSY...
  • Page 50 [HNT-1/1P] Assembly & Disassembly_Moving base frame and XYZ ASSY 5) How to disassemble the Moving base frame and XYZ ASSY You can disassemble the Moving base frame (8) if you loosen the four screws (Red) on the M2_XZ-RAIL- ASSY separate Remove the four screws &...
  • Page 51 [HNT-1/1P] Assembly & Disassembly_X and Z Motor 6) How to disassemble the X and Z Motor Loosen the four screws for disassembling the X Motor (8) - XZ M ASSY adjustment is required to assemble the X motor Loosen the four screws for disassembling the Z Motor (9) - XZ M ASSY adjustment is required to assemble the Z motor ※...
  • Page 52 [HNT-1/1P] Assembly & Disassembly_X and Z Motor 6) How to check the condition for X, Y and Z Motor and sensor [Check the X, Y and Z Motor and sensor condition] Enter the Engineer mode: Press PRINT -> R -> L -> SETUP button on the main screen Press the Long Run Test ->...

  • Page 53: Upgrade The Software

    [HNT-1/1P] Upgrade the software 5. Upgrade the software 2018 . 10 . 02 (r1) Field Application Department 53/63...
  • Page 54 Connect PC to HNT-1/1P with serial cable Pressing the button of joystick, then turn on HNT-1/1P Select “Serial Port” -> “Transmit” menu Choose “HNT-1 / 1P **.bin” file, then press OK button After downloading, turn off and on the HNT-1/1P 2018 . 10 . 02 (r1)

  • Page 55: Engineer Setup Mode

    [HNT-1/1P] Engineer Setup Mode 6. Engineer Setup Mode 2018 . 10 . 02 (r1) Field Application Department 55/63...
  • Page 56 [HNT-1/1P] How to enter the Engineer Setup Mode ① [How to into the Engineer Setup Mode] - Press PRINT  R  L  SETUP button on the main screen ② [How to into the wanted Mode] - Push the wanted mode on the screen 2018 .
  • Page 57 [HNT-1/1P] Engineer Setup Mode 1. [Dead Pixel Correction] - Check the dead or hot pixel of camera 2. [Solenoid Control] - Set / Adjust the Solenoid puffing time and power 3. [Focus LED Setup] - Set / Adjust the all LEDs brightness 4.
  • Page 58 [HNT-1/1P] Engineer Setup Mode_Dead Pixel Correction ① [Purpose] - Check the dead and hot pixel of the camera and get the position - Correct the dead and hot pixel ① [SEARCH OBS CAM WHITE DEAD PIXEL(HIDE)] - Search for white dead pixel(hot pixel) in OBS camera and display their location ②...
  • Page 59 [HNT-1/1P] Engineer Setup Mode_Track Motor Setup ① [Purpose] - Adjust Motor speed and auto tracking(focus) speed ① [PWM BASE] - Base Power(Speed) of Auto Focus Motor ② [DIST CONST] - Range of Auto Focus Motor speed - If it is increased, Auto focus movement is more slow.
  • Page 60 [HNT-1/1P] Engineer Setup Mode_Target Dist Setup ① [Purpose] - Adjust the working range of auto tracking ① If the value is more large, auto tracking is finished in more broad area around focus center ② [Manual Mode] - MA-TARGET DIST(X) : range of x axis...
  • Page 61 [HNT-1/1P] Engineer Setup Mode_Touch Calibration ① [Purpose] - The touch calibration for correct touch operation ① Press “Start” button on the screen ② Touch the cross shape shown on the screen ③ When finish touching one cross shape, the next cross shapes are displayed ④...
  • Page 62 [HNT-1/1P] Engineer Setup Mode_Long Run Test ① [Purpose] - Test for motor aging X-HEAD ON, OFF : left, right direction(Head) Y-HEAD ON, OFF : up, down direction(Head) Z-HEAD ON, OFF : front, rear direction(Head) C-REST ON, OFF : chin rest up, down...
  • Page 63 [HNT-1/1P] Engineer Setup Mode_IQC Test ① [Purpose] - Test for H/W components(LCD, LED, Motor etc.) ① Press each item to test ② Select “pass” or “Fail” button for each item ③ Press the “Print” button to print the test results ④...

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