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Related Manuals for Keeler IntelliPuff
Summary of Contents for Keeler IntelliPuff
- Page 1 IntelliPuff Non-contact Tonometer Service Manual ISSUE D 27/02/2014 ALWAYS READ THE INSTRUCTIONS Keeler Limited, Clewer Hill Road, Windsor, Berks, United Kingdom. SL4 4AA. Tel No. +44 (0) 1 753 857177Fax No. +44 (0) 1 753 830247...
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Page 2: Table Of Contents
Intellipuff Service Manual EP59-12317 CONTENTS CONTENTS Tools Required Precautions System Requirements Software Installation Guide intelliPuff - Principles of Operation Calibration Principles Boot Mode Programming Calibration Disassembly and Reassembly Cleaning the Optics Replacing the Air Filter Replacing the Handset Assembly Replacing the Pump Assembly... -
Page 3: Tools Required
Most of the tools required will be in standard electro-mechanical toolkit. In addition the following are required. Pozi No 2 Screwdriver with a blade at least 200mm long Torque Spanner – Tool No TD699 – available from Keeler Ltd Issue D 27/02/2014 Page 3 of 51... -
Page 4: Precautions
Intellipuff Service Manual EP59-12317 Precautions Adjustment or replacement of any of the active elements of the system will result in the need to check the calibration and probably re-calibrate the unit. This includes any of the optical or pneumatic active components with the exception of the air filter. -
Page 5: System Requirements
Intellipuff Service Manual EP59-12317 System Requirements Use of the Pulsair Calibration Jig requires the use of a PC. This PC has the following minimum requirements:- Desk top, Tower, or Laptop loaded with Windows XP (earlier versions of Windows and Vista will not work reliably) CD ROM drive to load software. -
Page 6: Software Installation Guide
Intellipuff Service Manual EP59-12317 Software Installation Guide Load the CD provided into the PC and follow the instructions. Issue D 27/02/2014 Page 6 of 51... -
Page 7: Intellipuff - Principles Of Operation
EP59-12317 intelliPuff - Principles of Operation The intelliPuff handset is positioned in front of the eye being tested until it fires the solenoid valve releasing a pulse of air which rises in pressure with time and causes the surface of the eye being examined to deflect. -
Page 8: Calibration Principles
The required parameters are then calculated and written to the internal memory of the handset. This ensures that the readings from the intelliPuff will be correct against the standard. It is possible to verify the calibration without resetting it. -
Page 9: Boot Mode Programming
Intellipuff Service Manual EP59-12317 Boot Mode Programming From time to time the software in the intelliPuff may be updated to incorporate the latest version based on Keeler’s continued research and development. This process should not be undertaken unless instructed by Keeler. New software will be issued and instructions on loading it to the main PC will be given at that time. - Page 10 Intellipuff Service Manual EP59-12317 Following that, the program looks for the connected Pulsair to establish communication, if this fails because of unit being switched off or cable not connected, the form below is displayed advising the user to switch off unit and try again providing the cable connection are made.
- Page 11 Intellipuff Service Manual EP59-12317 Once the controller is loaded successfully, programming the hand unit resumes progress of which is shown in the form below. When programming the hand unit is complete, the user is prompted if programming the base unit is necessary. Usually the base unit is programmed prior to calibration of the unit, so at this stage it is not normally necessary.
- Page 12 Intellipuff Service Manual EP59-12317 Pressing NO button on the above form displays the form below after which programming is complete. Issue D 27/02/2014 Page 12 of 51...
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Page 13: Calibration
Equipment Used: Pulsair 5000 Calibrated Pulsair 5000 calibration unit 12V Keeler power supply (x2) PC with 2 RS232 ports (or 2 port USB to RS232 hub) running the calibration software The handset needs to be prepared for mounting on the calibration jig by removing the Puff Tube Shroud on the patient end of the handset and the Eyepiece Shroud on the rear panel of the handset. - Page 14 Intellipuff Service Manual EP59-12317 The Introduction Form On starting the calibration software, an introduction is provided via a splash screen shown below. During the loading of the Splash screen, the system checks to see if there are available ports to connect to the Pulsair and the calibration unit before setting-up the communication ports to make remote connection to the instrument under test and loading the Mode Selection form.
- Page 15 Intellipuff Service Manual EP59-12317 reset the PC, switch OFF the Pulsair and the calibration box and then switch them back ON and try again until uninterrupted communication is established. Mode Selection Form The first form that the user interacts with is the mode select form. This will provide the user with several options.
- Page 16 Intellipuff Service Manual EP59-12317 Run Calibration This mode selection consists of a sequence of forms to prompt the user to set up the instrument under test correctly before calibration measurements are taken. If cancelled at any stage the software returns to the mode selection form.
- Page 17 Intellipuff Service Manual EP59-12317 switch the pump off if it was ON at that stage so that ambient pressure can be recorded. On pressing Next, the ambient pressure is recorded, the user is prompted to switch the pump on as shown in the form below.
- Page 18 Intellipuff Service Manual EP59-12317 At this stage the reservoir pressure is checked before progressing to the next step of the calibration process, the result of this check is communicated to the user via the form below to indicate a PASS or FAIL, in the case of FAIL, calibration is terminated and the program advises the user to take corrective action.
- Page 19 Intellipuff Service Manual EP59-12317 If the - in focus - condition is met and the continue button is selected, the currently measured k value and the values of the three photosensors A, B and C at calibration will be recorded to the EEPROM for use during the operation of the instrument as part of firing condition parameters.
- Page 20 Intellipuff Service Manual EP59-12317 previous time in the data set is then defined as being the soft puff time and is recorded. The form will present a graph of the data set being currently collected of up to 8 puffs per timing. It will also present a table of the puff times used with the minimum, maximum and average external puff pressures.
- Page 21 Intellipuff Service Manual EP59-12317 using an average of 10 puffs on each of the soft and hard puff settings previously determined. The data will then be averaged for each of the internal and external data sets and smoothed twice with a three point smoothing function. This data is used to calculate the skew in time between the internal and external profiles for each puff time.
- Page 22 Intellipuff Service Manual EP59-12317 Selecting the Print radio button, enables the operator to print the current calibration parameters along with the table of ADC/Pressure values by pressing the Print button. This calibration report also includes unit serial number for future reference. If the user selects to finish programming the user will be prompted to confirm that the calibration run is not required.
- Page 23 Intellipuff Service Manual EP59-12317 displayed to the screen through the RS232 port as shown in the form below. The current software allows the user to either view the relevant calibration data including last calibration date which can be printed by pressing the print button.
- Page 24 Intellipuff Service Manual EP59-12317 Exiting Calibration In most of the forms described so far, there is a Restart button which reverses the calibration process to a certain previous point in the program where appropriate. In most cases the Restart button unloads the current form and ends all the programming behind it and loads the mode selection form, from which the EXIT button can be pressed to abandon calibration.
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Page 25: Disassembly And Reassembly
Intellipuff Service Manual EP59-12317 Disassembly and Reassembly This should be undertaken with care. Disturbing many of the components may require the unit to be recalibrated. Complete assemblies are available as spare parts which will reduce the amount of work involved as well as eliminating some difficult setup procedures. -
Page 26: Cleaning The Optics
Intellipuff Service Manual EP59-12317 Cleaning the Optics Since the mainframe and PCB is a factory supplied unit it should only be necessary to clean the outside of the eyepiece and puff tube lenses. Remove the eyepiece and puff tube lens shrouds. -
Page 27: Replacing The Air Filter
Intellipuff Service Manual EP59-12317 Replacing the Air Filter Split the front and rear parts of the main unit as described in Disassembly and Reassembly Slide the filter assembly out of the retaining bracket. Release the tube from each connector by pushing the ring on the connector towards the connector and pulling the tube gently. -
Page 28: Replacing The Handset Assembly
Intellipuff Service Manual EP59-12317 Replacing the Handset Assembly The Handset Assembly is supplied complete with the Umbilical cable and connector. Disassembly of the hand set is not recommended and service exchange units are available. To remove the old unit. Open the main unit. (see Disassembly and Reassembly) - Page 29 Intellipuff Service Manual EP59-12317 Pin Number Colour Black White Yellow Orange Blue Green Brown Turquoise Purple Pink Grey Fit new cable ties to retain the cableform as originally fitted. Refit the air tube to the air filter (see changing air filter)
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Page 30: Replacing The Pump Assembly
Intellipuff Service Manual EP59-12317 Replacing the Pump Assembly Please refer to the troubleshooting section before changing the pump assembly. To Remove the Pump Assembly Open the main unit (see Disconnect the 12 way connector on the Power PCB to allow the 2 parts to separate. - Page 31 Intellipuff Service Manual EP59-12317 Thread the 6 mm tube through the housing and set the housing down onto the sound insulation making sure that the rubber sleeve on the pump wires is under the cut away . Replace 4 off 3mm x 16 Pozi screws holding the pump housing to the base...
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Page 32: Replacing The Main Pcb
Intellipuff Service Manual EP59-12317 Replacing the Main PCB To remove the PCB Disconnect 12 way connector from the Power PCB on the rear part of the unit Disconnect 4 mm tube from the umbilical to the air filter Disconnect 2 off 12 way connectors on the main board... -
Page 33: Replacing The Printer Assembly
Intellipuff Service Manual EP59-12317 Replacing the Printer Assembly Removing the Printer Remove the printer door by carefully pushing the points shown in the pictures below with the door closed. Carefully lift the blue section on the printer ribbon cable connector... -
Page 34: Handset
Intellipuff Service Manual EP59-12317 Handset The handset comprises 2 main sections, the valve/reservoir assembly and the mainframe assembly. For both of these the handset must be opened. Opening the handset Remove the Puff Tube Shroud on the patient side of the unit by unscrewing it. - Page 35 Intellipuff Service Manual EP59-12317 Rear Cover Assembly Carefully unplug 2 off white ribbon cables connecting the rear cover to the Handset PCB. Unplug the 6 way connector from the front panel to the Handset PCB. Replacement is the reverse of the above ensuring that the moulding sits inside the case half moulding.
- Page 36 Intellipuff Service Manual EP59-12317 The mainframe and PCB assembly including the valve coil is now free. Take care that the coil assembly does not damage the cables to it as the mainframe and PCB assembly is handled. Note that further disassembly of this unit is NOT recommended. The unit is set up and tested as a unit.
- Page 37 Intellipuff Service Manual EP59-12317 Browrest Assembly This may be removed and replaced by removing 2 off M2 x 10 Pozi screws. Ensure that the pinion wheel assembly is working before reassembly as the pinion is part of the case half assembly and failure will require the complete case half to be replaced.
- Page 38 Intellipuff Service Manual EP59-12317 Figure 1 - PRE 21/11/2012 UNIT Figure 2 - POST 21/11/2012 UNIT Ensure that a M3 nut is fitted as shown to receive the screw retaining the target LED cover. It is fitted from the outside of the case half.
- Page 39 Intellipuff Service Manual EP59-12317 M3 Nut Fit the top case half assembly and ensure that it comes together all round without strain. Refit 5 off M2 x 12 cap head screws Refit the browrest retainer under the browrest. Browrest Retainer Carefully clean off the double sided adhesive tape used to retain the white shroud from both case halves.
- Page 40 Intellipuff Service Manual EP59-12317 Refit the white cable clamp nut to retain the umbilical Fit 3 new plugs to hide the exposed cap head screws joining the case halves. Refit the target LED mask and the Puff Tube Shroud which retains it Refit the Eyepiece Shroud on the front panel.
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Page 41: Trouble Shooting
Intellipuff Service Manual EP59-12317 Trouble Shooting Always run the self test first as described in the user manual. Instrument is hard to fire This is associated with any of the following: Light level dropped since last calibration thus threshold levels cannot be achieved. - Page 42 Intellipuff Service Manual EP59-12317 calibration PC, a print out or the data can also be printed from the unit itself. 3. If Acceptable A, B, C & K values (green zone) can not be achieved, change the Mainframe and PCB assembly...
- Page 43 Intellipuff Service Manual EP59-12317 PRINT: this button has two functions: 1. Pressing it once forces the unit to automatically print, providing a valid reading is available to print, else ‘0’ is displayed. In this printing mode the printer does not have to be switched on through the scroll menu system.
- Page 44 Intellipuff Service Manual EP59-12317 One or all of the Key pad buttons do not perform as described above. Suggested Solution: 1. Check the wiring. 2. Check the solenoid conductive casing is not shorting any of the pads on the keypad PCB. Check that the pins on the underside of this PCB boards are trimmed short.
- Page 45 Intellipuff Service Manual EP59-12317 will be noticed by looking at the progress bar which fills the full bar after each puff. Once data is collected, the progress bar should go back to 0 fairly quickly, if however it gets stuck at full bar and takes few seconds to go back to zero, it is a sign of communication problem and calibration should be abandoned and rectify umbilical cable problem.
- Page 46 Intellipuff Service Manual EP59-12317 PL4: 7-way Molex Connector to Mainframe PCB This plug connects Target LEDs, LED Block (Main light source) and Solenoid to the Hand Piece PCB. Wire Assignment Signal to Measure Number Colour Code Grey Solenoid Return Blue...
- Page 47 Intellipuff Service Manual EP59-12317 Main LED, Target LEDs Do Not Light and Solenoid Does not Fire Suggested Solution: 1. Check for wire cuts and that the crimp terminals are not lose 2. Measure Voltage levels between the various PINS as shown in the above PIN assignment table above.
- Page 48 Erratic reading indicate that the operation of the valve in the handset is suspect and it may be necessary to change it. If a leak occurs in the pressure system the intelliPuff will indicate this with a message on the handset display. The pressure is verified after every puff.
- Page 49 Intellipuff Service Manual EP59-12317 Spare Parts The replacement of most spare parts will require the calibration to be checked and if necessary the unit must be re-calibrated. A number of service exchange units are available to minimise cost and repair complexity.
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Page 50: Spare Parts List
Intellipuff Service Manual EP59-12317 Spare Parts List Serv- Part No Description Exch 2414-P-5016 Valve and Reservoir Assembly 2414-P-5018 Main PCB Pulsair Button Adaptor – TO BE ORDERED EP39-55305 WHEN ORDERING 2414-P-5018 2414-P-5020 Power/RS232 PCB 2414-P-5024 Umbilical Cable Assy 2414-P-7010 Filter Assy... - Page 51 Intellipuff Service Manual EP59-12317 Serv- Part No Description Exch EP39-70274 Browrest Pad EP39-70278 Pinion Rack EP39-70290 Handset Screw Plugs EP39-70309 DIL Switch Cover EP79-70031 Browrest Latch EP79-70282 Browrest Spring RP99-99704 Double Sided Adhesive Tape Issue D 27/02/2014 Page 51 of 51...
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