OHAUS RI Series Maintenance Manual
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OHAUS RI Series Maintenance Manual

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RI Series
Maintenance manual
Range 15 kg d = 5g
Range 6 kg d = 2g

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  • Page 1 RI Series Maintenance manual Range 15 kg d = 5g Range 6 kg d = 2g...

  • Page 2: Table Of Contents

    Error message displaying: ....................25 Printing problems:....................... 26 Replacements: ..........................27 Replacing the A/D board and load cell assembly on RI Series........... 28 Replacing the main board on RI Series ................30 Replacing the switching power supply unit on RI Series ............ 31 Replacing the flexible keyboard on RI Series ..............
  • Page 3 Wired key cable (ref 71207312) ..................63 12. Networking ............................ 64 13. Error messages:..........................65 14. Flash Loader" PC software: ......................67 15. RI SERIES protection kit against Electric Static Discharges (ESD) ..........79 16. Spare parts list ..........................83 01/09/2006 Page - 3 -...

  • Page 4: Introduction

    RI Series 1. Introduction This document is intended for After Sales Support technicians working on the versions of RI Series and Atoll scales. This manual gives details of the product codes of the parts and the make up of sub-assemblies. It describes the maintenance operations most commonly performed on the scales.

  • Page 5: General Characteristics

    - Power supply voltage: 90 to 264VAC 47 to 440 Hz. - Internal battery pack (11 x NI-MH elements): 13.2 V / 3Ah on RI Series,13.2 V / 3.8 Ah on Atoll time life between 8 and 40 hours depending use of back-lit and printing.

  • Page 6: Ri Series Keyboard

    Maintenance manual RI Series RI Series keyboard: The keyboard has 80 keys, 4 configurations are available, numerical keys are situated at the centre for keyboards type 1, 2 and 4 and on the right for type 3 and 5. Keyboards type 4 and 5 are entirely definable by the user excepted for the following 20 keys which have fixed location.
  • Page 7 Maintenance manual RI Series - Keyboard 3: up to 30 indirect users, 48 directs PLUs, 12 function keys. The direct PLU keys (from 1 to 48) can be labelled. Blank labels supplied with the scales fit into the areas delimited by the keys.

  • Page 8: Installation

    Maintenance manual RI Series - Keyboard 4: the 20 location fixed keys have the same location as keyboard 1, all the other keys are definable by the user depending of his wishes. - Keyboard 5: the 20 location fixed keys have the same location as keyboard 3, all the other keys are definable by the user depending of his wishes.
  • Page 9 Maintenance manual RI Series 2) The keyboard membrane, the keyboard grid, the plate, the casing and the display scales can be cleaned using a moist sponge and soap (take care to switch off the machine before cleaning, remove the mains plug). Do not use a scouring pad.

  • Page 10: Ri Series Exploded Views

    Maintenance manual RI Series 4. RI Series exploded views 4.1 Main shell equipped 01/09/2006 Page - 10...

  • Page 11: Main Shell Equipped Continued (29270000)

    Maintenance manual RI Series Main shell equipped continued (29270000) Marker Designation Article number Battery pack (Saft) 71207297 Cable main board to com board 71208130 Main board 71207283 Switching power supply 71207286 Display LCD 71207313 Cable battery pack to main board...

  • Page 12: Final Assembly With Rear Display

    4.3 Final assembly with rear display Marker Designation Article number Top plate equipped 71207281 01/09/2006 Page - 12 -...

  • Page 13: Final Assembly With Tower Display

    4.4 Final assembly with tower display Marker Designation Article number Top plate equipped 71207281 01/09/2006 Page - 13 -...

  • Page 14: Fitted Main Shell

    4.5 Fitted main shell Approval Notice Metrology Safety Marker Designation Article number Glass rear display Ohaus 72191975 128 x 128 LCD display 71207313 Cable front or rear display 71207314 01/09/2006 Page - 14 -...

  • Page 15: Fitted Display Column

    4.6 Fitted display column Approval Notice Metrology Safety Marker Designation Article number Glass rear display Ohaus 72191975 128 x 128 LCD display 71207313 Cable tower display 71208142 01/09/2006 Page - 15 -...

  • Page 16: Motor Support Equipped

    4.7 Motor support equipped Approval Notice Metrology Safety Marker Designation Article number Silicone roll 71208138 Paper IR sensor with cable 71208129 Rubber roll ring 71208140 01/09/2006 Page - 16 -...

  • Page 17: Load Cell Support Equipped

    4.8 Load cell support equipped Approval Notice Metrology Safety Marker Designation Article number Equipped load cell support panel Fitted load cell cross-piece Shim between load cell and plate support Washer DEC M6 Screw TBHC M 6x40 Spring ground contact with the pan 71208135 Unalterable label 01/09/2006...

  • Page 18: Fitted Keyboard Assembly

    Keyboard silicone membrane 71207300 Intermediate sheet for keyboard nbr 1 71207302 Intermediate sheet for keyboard nbr 3 71208103 Foil film keyboard 71207301 Glass keyboard display "Ohaus" brand 72191976 Cable print head 71208146 Print head 71207282 01/09/2006 Page - 18 -...

  • Page 19: Fitted Adjustable Foot

    4.10 Fitted adjustable foot Marker Designation Article number Adjustable foot 71207299 Rubber pad Self-locking ring DIA22 Nut HM12 01/09/2006 Page - 19 -...

  • Page 20: Fitted Electrical Socket Panel

    4.11 Fitted electrical socket panel Marker Designation Article number Mains filter Bipolar switch Electricity supply socket support panel Screw TBHC M3X6 External battery (12v/24v) female socket 01/09/2006 Page - 20 -...

  • Page 21: Seal

    5. Seal 01/09/2006 Page - 21 -...

  • Page 22: Structure Diagram

    6. Structure diagram Mains filter and Mains switch fuse Switching power supply board Ext. battery 12V/24V Battery switches Memory extension Battery pack Display Display Comm. Thermal head Load cell Cash register Keyboard Motor Emitting IR Paper sensor cell cell Marker Designation Article number CPU board/ front and rear display cable...

  • Page 23: Diagnostic And Analysis Of Failures

    The purpose of this chapter is to enable you to solve any problems you may encounter when powering up or using RI Series. Before you can use RI Series, you must first wait the end of starting procedure, this one includes a series of tests and the memorisation of the null weighing reference.

  • Page 24: Nothing Happens When Switching On The Scales

    Nothing happens when switching on the scales • Check the mains fuses Are the fuses faulty? (630mA/250V) • Check the voltage (+18V) • Change the fuses • Check the place short- circuited with an Are the power supply cables Ohmmeter causing a short circuit? Check the external battery power supply (polarity...

  • Page 25: Error Message Displaying

    Error message displaying: The data key stored in the main board is different of the Is it possible to enter one stored in the A/D board. the service menu via The scales displays Recover calibration code 89 with the message parameters via exchanging keyboard 1 or 3 ? "UNKNOWN BASE"...

  • Page 26: Printing Problems

    Printing problems: -The VTH voltage which supplies the The scales displays " print head is out of limits, Check the ERROR PRINT 3", when working of the 24 V switching converter swtching on or when printing on the main board. -Change the main board.

  • Page 27: Replacements

    Replacements: Before you open the scales and handle the electronic components, cables, switches, etc., remove the electricity supply cable from the mains socket and the battery pack or external battery cable. Note that certain components, in particular the power supply unit remain charged with electricity for a certain time, even after the scales have been unplugged.

  • Page 28: Replacing The A/D Board And Load Cell Assembly On Ri Series

    Replacing the A/D board and load cell assembly on RI Series Dismantling: see drawings 29270001, 29270077 and 29270054. - Switch off the scales, unplug the mains plug / external battery plug. - Remove the internal battery. - Remove the fitted plate (7 see drawing 29270001)- Remove the 2 rubbers that are located behind the plate support cross-piece (2 see drawing 29270077).
  • Page 29 - Remove the unalterable label . - Unscrew the three TBHC M3X6 screws (5 see drawing 29270054. - Remove the load cell / A/D board protector (3 see drawing 29270054). - Unscrew the two CHC M6X25 screws (6 see drawing 29270054), using n°5...

  • Page 30: Replacing The Main Board On Ri Series

    Replacing the main board on RI Series Dismantling: see drawings 29270001 and 29270077. - Switch off the scales, unplug the mains and external battery, remove internal battery. - Remove the load cell support and fitted cross-piece assembly as indicated in paragraph 8.1 - Unplug all the cables that connect the main board.

  • Page 31: Replacing The Switching Power Supply Unit On Ri Series

    8.3 Replacing the switching supply unit on RI Series power Dismantling: see drawings 29270001 and 29270077. - Switch off the scales, unplug the mains plug. - Remove the load cell support and fitted cross-piece assembly as indicated in paragraph 8.1 - Unplug all the cables that connect the main board.

  • Page 32: Replacing The Flexible Keyboard On Ri Series

    8.4 Replacing the flexible keyboard on RI Series Dismantling: see drawings 29270001, 29270077 and 29270055. - Switch off the scales, unplug the mains plug. - Remove the fitted plate (7 see drawing 29270001) - Remove the load cell support and fitted cross-piece assembly as indicated in paragraph 8.1 and place it delicately not to the side but to the rear on the same axis on the edge of the scales.

  • Page 33: Replacing The Thermal Print Head On Ri Series

    8.5 Replacing the thermal print head on RI Series Dismantling: see drawings 29270055 and 29270063. - Switch off the scales, unplug the mains plug. - Pull forwards on the two clips (7 see drawing 29270055), as indicated above. - Swing the fitted keyboard assembly upwards.

  • Page 34: Replacing The Fitted Motor Unit On Ri Series

    8.6 Replacing the fitted motor unit on RI Series Dismantling: see drawings 29270000 and 29270052. - Switch off the scales, unplug the mains plug. - Lean the scales on their left side. - Unscrew the two EJOT PT WN1412 K40X25 screws (12 see drawing 29270000) that retain the lower enclosing panel.

  • Page 35: Replacing The Front Display Unit On Ri Series

    8.7 Replacing the front display unit on RI Series Dismantling: see drawing 29270051. - Switch off the scales, unplug the mains plug. - Lean the scales to their right side. - Unscrew the four TBHC M3X10 screws (6 see drawing 29270051) that retain the display unit door (5 see drawing 29270051).

  • Page 36: On Site Calibration Procedure

    9. On site calibration procedure: Warning: On site calibration will have as consequence the lost of "GEO code ", so in case of main board replacement it is preferable to recover calibration parameters by license updating (see tutorial file HeliosEng.chm) . - Set the scales level.
  • Page 37 ADJUSTEMENT MODE MANUAL CALIBRATION MASS CALIBRATION Put the calibration weight requested on the pan. MASS = 10kg As soon as the message "STEADY" is displayed, TOO LOW press the V key to validate 29200 STEADY If the weighing does' nt exceed limits, the calibration is then over. The scales display: ADJUSTEMENT MODE MANUAL CALIBRATION...

  • Page 38: Geo" Code Modification

    "GEO" code modification: - Remove the fitted plate (7 see drawing 29270001) - Remove the sealing label (7 in drawing 29270077) - Insert a straightened paper clip (or a pointed object) into the hole provided for calibration. - Press the Toggle Switch once in order to get the top position. - Install the fitted plate (7 see drawing 29270001) - Switch on the scales.

  • Page 39: Technical Data Test Points / Settings

    +6,5V alimentation +3,3V, +5V, and + 5V dedicated to the load cell. d) +24V / 5A by pulse for the printing. RI Series and scales are fitted with two switches : - Battery switch (at the top) allows to turn off external and internal battery pack .
  • Page 40 On/Off switch for internal and external batteries On/Off switch for mains 01/09/2006 Page - 40 -...
  • Page 41 Battery pack recharge CAUTION: In order for the internal battery to charge: - the scales must be supplied by the mains, - the "New charge" option (code 85) must be "YES". (See below) Power supply check Choice:85 -MAINS POWER SUPPLY: Voltage -EXTERNE BATTERY: Voltage...

  • Page 42: The Switching Power Supply Unit (71207286)

    10.2 The switching power supply unit (71207286) The power supply used is switching type (PS-65-15). Its main characteristics are: -Input voltage………………… 90 – 264VAC - AC current…………………….1.5A/115VAC ; 0.9A/230VAC - Frequency…………………… 47 – 440Hz - EMI filter - Protection against: short circuits, surges, overloads. - Output voltage……………….15 –...

  • Page 43: Analogue/Digital Board

    10.3 Analogue/digital board The A/D board conversion principle used is "Delta-Sigma". The A/D board board includes: - Analogue/digital converter [IC1 (CS5532 CYRRUS LOGIC)=delta-sigma with integrated amplifier] - +5V load cell power supply voltage regulator (IC2=LM293IM-5) - EEPROM [IC3 (25LC40)], containing the weight calibration parameters, the gravity correction factor, the metrological version of the software release used during calibration.

  • Page 44: Electrical Diagram (29120154)

    10.3.2 Electrical diagram (29120154) 01/09/2006 Page - 44 -...

  • Page 45: Ri Series Cpu Board (Main Board)

    10.4 RI Series CPU board (main board) The CPU board is divided into 5 parts: - The microprocessor part and interfaces, - The printer part, - The display part, - The communication part, - The power supply part. 10.4.1 The micro processor part The system is structured around a Motorola MC68CK331 (IC12) microprocessor.

  • Page 46: The Printer Part

    L6219 (IC32) . 10.4.3 The display part: RI Series and Atoll scales are equipped of two brand of LCD display POWERTIP and TRULY the Powertip has contrast compensation over temperature up to about 45/50 °C, the Truly one has liquid crystal stable up to 65/70 °C and does’nt need any contrast compensation device.

  • Page 47: The Communication Part

    . 10.4.4 The communication part RI Series scales have three serial communication channels: a/ The full duplex RS232 serial port (IC14 LTC1384) for communication with a PC (IP7 KHEOPS, IMPORT protocol or Flash loader) is provided directly by the IC12 processor (Motorola 68CK331).
  • Page 48 5) The +5V voltage The +5V supplies several electronic components (serial output, motor control, etc.). It is created by the Q21 5V regulator (LM2931). 6) The +3.3V voltage (VCC): The 3.3V voltage supplies most of the microprocessor's logic circuits. It is created by the IC20 switching regulator (LM2674).

  • Page 49: Test Points (Main Board 71207283)

    10.4.6 Test points (main board 71207283) To the power supply 1=> 18V 2=> 18V 3=> 18V VTH=>+24V (at the TP200=>+3.3V 4=> 0V time of printing) 5=> 0V 6=> 0V To ext. battery 1=> 0V 2=> 12V To int. battery emulator InT/Ext To batt.

  • Page 50: Diagrams

    10.4.7 Diagrams Main Board 71207283 (1/6) 01/09/2006 Page - 50 -...
  • Page 51 Main Board 71207283 (2/6) 01/09/2006 Page - 51 -...
  • Page 52 Main Board 71207283 (3/6) 01/09/2006 Page - 52 -...
  • Page 53 Main Board 71207283 (4/6) 01/09/2006 Page - 53 -...
  • Page 54 Main Board 71207283 (5/6) 01/09/2006 Page - 54 -...
  • Page 55 Main Board 71207283 (6/6) 01/09/2006 Page - 55 -...

  • Page 56: Cables

    11. Cables 11.1 CPU board / Communication board (ref 71208130) Coté U.C. = CPU board side Coté prises = Communication sockets side Marquage par tampon avec encre Trodat Réf. : 7081 à effectuer par le sous-traitant. = To be marked by the sub-contractor using a stamp with Trodat ink Ref.: 7081 Marquage au feutre indélébile de la dernière édition (ED:) du plan.

  • Page 57: Infra-Red Led Cable (Emitting Cell) Ref 71208141

    11.2 Infra-red LED cable (Emitting cell) ref 71208141 Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED☺ = Number and latest edition (ED☺ of the drawings marked by the sub-contractor with indelible felt-tip Anode = Anode Bleu = Blue Cathode = Cathode...

  • Page 58: Infra-Red Sensor Cable (Receiving Cell) Ref 71208129

    11.3 Infra-red sensor cable (Receiving cell) ref 71208129 Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED:) = Number and latest edition (ED:) of the drawings marked by the sub-contractor with indelible felt-tip Collecteur = Collector Rouge = Red Emetteur = Emitter...

  • Page 59: Motor Cable (Ref 71208131)

    11.4 Motor cable (ref 71208131) Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED:) = Number and latest edition (ED:) of the drawings marked by the sub-contractor with indelible felt-tip Souder = Solder Fil rouge = Red wire Fil vert = Green wire Fil bleu = Blue wire...

  • Page 60: Cpu Board / Power Supply Cable (Ref 71208132)

    11.5 CPU board / Power supply cable (ref 71208132) Fil noir = Black wire Fil rouge = Red wire Marker Designation 2.54 pitch 6 pin connector 0.34mm black wire 0.34mm red wire 3.96 pitch 6 pin connector 01/09/2006 Page - 60 -...

  • Page 61: Cpu/Front And Rear Displays Cable (Ref 71207314)

    11.6 CPU/front and rear displays cable (ref 71207314) Retirer la gaine du câble sur 10 mm = Strip 10 mm. of covering from the cable Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED:) = Number and latest edition (ED:) of the drawings marked by the sub-contractor with indelible felt-tip Noir = Black...

  • Page 62: Cpu Board / Column Display Cable (Ref 71208142)

    11.7 CPU board / column display cable (ref 71208142) Retirer la gaine du câble sur 10 mm = Strip 10 mm. of covering from the cable Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED:) = Number and latest edition (ED:) of the drawings marked by the sub-contractor with indelible felt-tip Noir = Black...

  • Page 63: Wired Key Cable (Ref 71207312)

    11.8 Wired key cable (ref 71207312) Marquage au feutre indélébile, par le sous-traitant du numéro du plan + la dernière édition (ED:) = Number and latest edition (ED:) of the drawings marked by the sub-contractor with indelible felt-tip Repère = Marked Référence = Reference Désignation = Name Interrupteur à...

  • Page 64: Networking

    Scales to Scales RS845 interconnections Simplified procedure for networking RI Series and Atoll scales - Pull on the two keyboard clips on the front of the scales. - Swing the fitted keyboard upwards. - Connect the scales to each other via one of the two RJ45 sockets (at the bottom) using the Scales/Scales connecting cable (96100391), up to a maximum of ten sets of scales.

  • Page 65: Error Messages

    13. Error messages: After switching on during start-up several functioning test are performed . a. Display units: Visual test by the display of smaller and smaller check patterns until maximum resolution. b. Metrology and its security devices: 1) Metrological switch in lower position (off): - Recognition of the base, if, when compared, the calibration parameters, the gravity correction factor and the checksum are not identical or if the base is not connected, the machine is blocked on the message: "UNKNOWN BASE ".
  • Page 66 6) Updating the weight calculating program: Sectors 2 and 3 of the FLASH memory, containing the weight calculating program and everything pertaining to it, can only be updated when the sealed part is open and the metrological switch in upper position. When the update is over, the new metrological version is recorded on the A/D board.

  • Page 67: Flash Loader" Pc Software

    14. Flash Loader" PC software: a. Principle: The principle consists of reloading the code contained in FLASH memory with the code contained in a Motorola format file (S2/S8). Only the RS232 serial port can be used for communication with the PC. After the connection has been recognised, the loader is copied into RAM and the program counter is switched over to the part copied into RAM.
  • Page 68 FLASH LOADER operator guide Table of Contents 1. INSTALLATION ......................68 2. DESCRIPTION OF THE PROGRAM ................68 3. USER INTERFACE ....................69 4. FILE UPDATE ......................70 Starting the Flash Loader program ............70 Connect .....................70 Source file ....................71 Erase Flash ....................72 Program Flash ...................74 Quit ......................75 5.

  • Page 69: Installation

    Installation 1. From the installation CD launch "setup.exe" 2. Follow instructions given, and key the path of the folder where to install the software. 3. Copy the short-cut to the windows desktop once installation is over. Description of the program Flash is used to update the programs for various reasons but in selective ways: - The application part of the program can be updated without breaking the seal.

  • Page 70: User Interface

    User interface The user interface is made up of the following icons: - Information: description of the "FLASH" menu . - Connect: initiate communication between PC and scales, once the scales is connected this state is indicated by back light flashing on the displays and scales are not available for normal functioning.

  • Page 71: File Update

    Updating an "application" file (without breaking the seal) 4.1 Starting the Flash Loader program 1- Connect the PC to the scales via the RS232 cable (000970540 RJ45/BD9pts F). 2- Start the program by clicking on the FLASH icon. 3- Choose the language at first. 4- Choose the serial port of your PC.

  • Page 72: Source File

    4.3 Source file Use this button to load the .S2 file into the "Ouvrir" (Open) dialogue box. Look in the directory to see that you have stored the .S2 files correctly. Choose the file that you want to load into the scales. Ex.: B_C_02_0005_04.s2 The PC's screen displays: 01/09/2006 Page - 72 -...

  • Page 73: Erase Flash

    4.4 Flash Erase Use this button to erase the contents of the Flash memory (application). Click on the button. The PC's screen displays: To transfer the "application" file from the PC to the scales, click on the "Yes" button. The program starts to load. The PC's screen displays: 01/09/2006 Page - 73 -...
  • Page 74 01/09/2006 Page - 74 -...

  • Page 75: Program Flash

    4.5 Program Flash When you have erased the Flash memory, the PC's screen displays: Click on the "Flash Programm" button. The program starts downloading and the PC's screen displays: 01/09/2006 Page - 75 -...

  • Page 76: Quit

    4.6 Quit When the program has loaded, the scales reset themselves and start test cycle. Updating scales data could be necessary depending of the importance of change in the application version. The PC's screen displays: Click on the "Quit" icon to leave the "FLASH LOADER" program. 01/09/2006 Page - 76 -...

  • Page 77: Updating The Metrology Part

    5- Complete updating metrology part and application part - The metrology or "LOADER" part can only be updated after the machine has been unsealed and the metrological switch is in top position. - Follow paragraph (4.1). 5.1 Connection: - Follow paragraph (4.1) for the connection. After connecting you will be able to notice that only sector 4 is protected.

  • Page 78: Program Flash

    Program Flash Click on the "Programm" icon. The PC's screen displays: Quit (see paragraph 4.6) 01/09/2006 Page - 78 -...

  • Page 79: Ri Series Protection Kit Against Electric Static Discharges (Esd)

    15. RI SERIES protection kit against Electric Static Discharges (ESD) Seven parts for ESD changes: ITEM MTCN BOM DESCRIPTION 169090 FOAM INSERT 168977 FERRITE CLIP 153231 CABLE FOR PHOTOTRANSISTOR 153230 CABLE FOR INFRARED EMITTING DIODE 153242 CABLE FOR 12V/24V BATTERY TO MAIN PCB BOARD...
  • Page 80 1/, Cable 153242 coils up 4 circles around ferrite on the Cable 153233, then we fix the ferrite on the main housing with 133412 like in the picture below . Replace the previous power supply cable by this new one 2/ Replace LED and sensor cables for paper detection by the ones ferrite equipped.
  • Page 81 3/ Change the grounding of the two cables marked below, following the picture. 4/ Clip all the cables (except for the display and motor cable) with TDK ferrite. The position of the ferrite should be as shown below. 01/09/2006 Page - 81 -...
  • Page 82 5/ Put the foam into the plastic cavity as shown below. Be sure the foam and TDK ferrite are placed properly. 6/ Assemble the bottom cover. 01/09/2006 Page - 82 -...

  • Page 83: Spare Parts List

    71208149 Ferrite clip Filtre afficheur avant RI Series Ohaus 72191976 Glass front display Ohaus brand RI Series Filtre afficheur arrière RI Series Ohaus 72191975 Glass rear display Ohaus brand RI Series Conditional on technical modifications and the availability of accessories...
  • Page 84 Should this device be passed on to other parties (for private or professional use), the content of this regulation must also be related. Thank you for your contribution to environmental protection. www.ohaus.com P/N: 71210076 (09/06) 1.0 OHAUS® is a Trademark of OHAUS,Inc. ©2006 OHAUS,Inc. Printed in Switzerland...

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