Seca 285 Service Manual

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Service Manual

for seca 336 NEC2

Variants:

3367021004

3367021094

3367021224

3367021244

3367021284

3367021368

Description:

Electronic babyscale, with LCD Display ans NEC2 Electronic

When servicing or repairing seca devices according to this service manual, always take note of the

instruction manual of the product. To download the latest version of the instruction manual and EMC

Recommendation go to

Contents:

Service description electronic

Cableplan

Replacement

Spare parts

Spare parts drawing

EMC Recommendation

Instruction manual

Manual number:

17-05-01-376-

www.seca.com

30-34-00-812 d

08-02-06-059

30-34-00-862

336 7021004

336 7021094

336 7021224

336 7021244

336 7021284

336 7021368

30-34-00-674

30-34-00-519

17-10-07-537

Service Manual Number

17-05-01-376-

Valid as of:

01.03.3013

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Page 1 Electronic babyscale, with LCD Display ans NEC2 Electronic When servicing or repairing seca devices according to this service manual, always take note of the instruction manual of the product. To download the latest version of the instruction manual and EMC www.seca.com...
Page 2 General information seca Electronics (NEC2) Service Instructions ODEL [336|374|376|378|703|704|264|274|284|285|634|635|644| 645|656|657|664|665|675|676|677|684|685|954|955|957| 959|963] 14.02.2013/RLEU/ARI/MRE 1/41 30-34-00-812d...
Page 3: Table Of Contents
Part [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675| 676|677|684|685|264|274|284|285|954|957|959|963] .............. 6 1.2.1 Design [336|374|376|378|703|704634|635|644|645|656|657|664|665|674|675|676|677|684|685|28 4|285] 1.2.2 Function [336|374|376|378|703|704634|635|644|645|656|657|664|665|674 |675|676|677|684|685|284|285] .................... 6 Design and Function of the Head Slider [264|274|284|285] ........7 2 Maintenance [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|684|685|264| 274|284|285|954|957|959|963]....................8 Adjustment Scales [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674| 675|676|677|684|685|264|274|284|285|954|957|959|963] ............. 10 2.1.1 General[336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|6 76|677|684|685|264|274|284|285|954|957|959| 963] ............10 2.1.2...
Page 4 3 Errors [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|684|685|954| 957|959|963]........................... 21 Error Symptoms Scale [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|684|685|954| 957|959|963] ........................... 21 Error Symptoms for Head Slider [264|274|284|285] ..........22 Radio Error Symptoms [374|376|378|703|704|284|285|634|635|644|645|656|657|664 |665|674|675|676|677|684|685|954|957|959|963] ..............23 Scale Error Messages [336|374|376|378|703|704|284|285|634|635|644|645|656|657|664| 665|674|675|676|677|684|685|954|957|959|963] ..............24 Head Slider Error Messages [264|274|284|285]............25...
Page 5 General information seca 4.2.1 Measurement Using a Multimeter [336|374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|676|677|68 4|685|954|957|959|963] ...................... 27 5 Software intended Purpose....................30 Installation and Start ....................30 Updating the Radio Module Software ................ 31 Set-up Process......................32 Updating the Radio Module Software ................ 33 Technical Requirements for Updating ............... 34 Updating the Wireless Printer Software..............
Page 6: General Information
These instructions are not suitable for users without specialist knowledge. These instructions describe service devices [374|376|378|634|635|644|645|656|657|664|665|674|675|676|677|684|685|703| 704|264|274|284|285|954|957|959|963]equipped with NEC2 electronic modules. The device types for which these instructions apply are listed in the section headings. There are some identical models with NEC1 electronic modules. These instructions valid those types.
Page 7: Design And Function Of The Scale Part
Radio module 08-06-18-172 NEC2 Display module 08-06-18-170 oder -195 Keyboard ISIS BUS (Modular cable) NEC2 DMS Module (Weight measurement) DC Supply 08-06-18-156 Load Load Load Load cell cell cell cell Figure 1: Functional diagram [704|284|285|634|635|644|645|656|657|664|665|675|677|684|685] 14.02.2013/RLEU/ARI/MRE 6/41 30-34-00-812d...
Page 8: Design And Function Of The Head Slider [264|274|284|285]
Absolute and relative graduation marks are scanned to determine lengths. Once the slider has moved more than two absolute marks, the absolute position can be determined and a length is output. Figure 4: Absolute (left) and relative graduation marks (right) [264|274|284|285] 14.02.2013/RLEU/ARI/MRE 7/41...
Page 9: Maintenance [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|684|685|264| 274|284|285|954|957|959|963]
Maintenance seca Maintenance [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674 |675|676|677|684|685|264|274|284|285|954|957|959|963] The following section provides an overview of all maintenance jobs which can be carried out. To call up the Service Menu, start the scale while pressing another key at the same time. This causes the content of the calibration counter (i.e. the number of adjustment operations carried out so far) to be displayed for 24 seconds (flashing).
Page 10 Long keypress (any key) o XXX.XX (firmware version, e.g. 290.07) Software identification and check digit: The existing seca firmware version number is retained and can be called up. Firmware software identification Each and every firmware is given its own software identification number.
Page 11: Adjustment Of Scales
Device check digit The overall check digit for the device is the total of the individual check digits. Representation on display Hardware module Firmware version with index / internal seca value PTB version number PTB check digit Weight module Display...
Page 12: Calibration Counter / Number Of Adjustments
 The readjustment device must be protected against inadvertent use. Scale adjustment can be carried out manually as described in section 0” or using seca serva 2.0. Manual adjustment will not correct any corner errors. 2.1.2 Calibration Counter / Number of Adjustments...
Page 13: Adjustment Mode And Displaying The Calibration Counter Contents [284|285]
Contents [284|285] To begin readjustment or to display the calibration counter contents, start the scale and press another key while the display shows seca. The contents of the calibration counter (i.e. the number of adjustment procedures carried out so far) are then displayed for 18 seconds (flashing).
Page 14: Example: Adjusting A Scale With 100G Graduations
Maintenance seca 2.1.6 Example: Adjusting a Scale with 100g Graduations [703|704|284|285|634|635|644|645|656|657|664|665|675|676|677 |684|685] The selected test weight is 200 kg. The current weight shown on the display is 199.7 kg (max. deviation of 300 g). In this example, you must switch the scale to incrementing mode to carry out readjustment.
Page 15: Overview Of Adjusting A Scale With 100G Graduations [703|704]
Maintenance seca 2.1.8 Overview of Adjusting a Scale with 100g Graduations [703|704 Action carried out by the user Result The scale is switched off. No values or characters on the display. Press the tare/hold key and keep it The contents of the calibration counter pressed while simultaneously pressing flash on the display for 18 seconds.
Page 16 Maintenance seca less than 1.5 seconds). change the value on the display due to the low display resolution. Only the rounded value is output. Repeat this step until the measured The display indicates the test weight weight matches the test weight (format: (format: xxx.0 kg).
Page 17: Overview Of Adjusting A Baby Scale With 10G Graduations [336|374|376|378]
Maintenance seca 2.1.9 Overview of Adjusting a Baby Scale with 10g Graduations [336|374|376|378] Action carried out by the user Result The scale is switched off. No values or characters on the display. Press the tare/hold key and keep it The contents of the calibration counter pressed while simultaneously pressing flash on the display for 18 seconds.
Page 18: Adjusting The Head Slider [284|285]
The display reads “Sto” and the scale shows “Sto”. switches off automatically. Adjusting the Head Slider [284|285] The head slider electronics must be readjusted whenever the electronics are replaced. Please refer to the instructions in the operating manual. 2.2.1 Displaying the Gravity Factor...
Page 19: Setting The Gravity Factor [374|703|634|644|656|664|674|676|684|284|954]
Maintenance seca Setting the Gravity Factor [374|703|634|644|656|664|674|676|684|284|954]: gravity factor only non-approved models [374|703|634|644|656|664|674|676|684|284|954] Before the gravity factor can be set, the scale must first be switched to adjustment mode (see section 2.1.3 or 2.1.4). While the calibration count is displayed, a key must be kept pressed (for more than 1.5 seconds) to switch the scale to adjustment mode.
Page 20: Example For Gravity Factor Setting
Maintenance seca 2.3.1 Example for Gravity Factor Setting [374|703|634|644|656|664|674|676|684|284|954] The current gravity factor shown on the display is 98135 kg mm/s². The target gravity factor is 98150 mm/s². In this example, you must switch the scale to incrementing mode to set the gravity factor.
Page 21 Maintenance seca seconds. and then the current gravity factor - also flashing. Decide whether to decrement or to increment: Incrementing: Press the tare/hold key for more than 1.5 Incrementing mode is activated; "inc" seconds. appears on the display. Decrementing: No action required as the No output on the display.
Page 22: Errors [336|374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|684|685|954| 957|959|963]
Errors seca 3 Errors [336|374|376|378|703|704|634|635|644|645|656|657|664| 665|674|675|676|677|684|685|954|957|959|963] The following section provides an overview of possible error symptoms, their causes and the steps required to remedy the error. In addition, the error messages generated by the device and ways to eliminate them are explained.
Page 23: Error Symptoms For Head Slider [264|274|284|285]
Errors seca Error Symptoms for Head Slider [264|274|284|285] Error description Possible causes Remedy Battery not inserted or flat Check the batteries See section 4.1 Voltage supply defective Head slider does Check cable not start connections, check Key panel defective or not...
Page 24: Radio Error Symptoms [374|376|378|703|704|284|285|634|635|644|645|656|657|664 |665|674|675|676|677|684|685|954|957|959|963]
Errors seca Radio Error Symptoms [374|376|378|703|704|284|285|634|635|644|645|656|657|664 |665|674|675|676|677|684|685|954|957|959|963] Error description Possible causes Remedy Device does not transfer any data Repeat teach-in Teach-in phase not when the SEND phase (see operating completed out successfully or PRINT key is instructions) pressed Device beeps...
Page 25: Scale Error Messages [336|374|376|378|703|704|284|285|634|635|644|645|656|657|664| 665|674|675|676|677|684|685|954|957|959|963]
Errors seca Scale Error Messages [336|374|376|378|703|704|284|285|634|635|644|645|656|657|664| 665|674|675|676|677|684|685|954|957|959|963] Display: Er:x:nr Electronics detecting a fault. X : Module number No Fault number Scale displays Cause Remedy seca serva diagnosis: replace load cell or Load cell defective, electronics as Er:X:11 supply lines damaged or...
Page 26: Head Slider Error Messages [264|274|284|285]
Er:X:45 EEPROM defective Replace the electronics Er:X:57 Quartz does not oscillate Replace the electronics ead Slider Error Messages [264|274|284|285] Display: Er:x:nr Electronics detecting a fault. X : Module number No Fault number Scale displays Cause Remedy Er:X:40 EEPROM data faulty...
Page 27: Radio Error Message [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665| 674|675|676|677|684|685|954|957|959|963]
Er:X:45 EEPROM defective Replace the electronics Er:X:57 Quartz does not oscillate Replace the electronics Radio Error Message [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665| 674|675|676|677|684|685|954|957|959|963] Display: Er:x:nr Electronics detecting a fault. X : Module number No Fault number Scale displays Cause Remedy Er:X:71 Radio module is...
Page 28: Measurements [336|374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|676|677|684| 685|954|957|959|963]
The most effective way to identify a defect of the load cell is using the diagnosis function of seca serva 2.0; if this is not available you can alternatively use a multimeter (see 4.2.1). A multimeter measurement, however, is less conclusive so that it should always be second choice.
Page 29 Table 2: Resistance of Flintec / Kogean Planar Beam / --Wing load cell [336|376|378|284|285] The relevant cabling diagram shows the designations and associated cable colour. The measured values only have a limited informative value, however, as even a defective load cell can supply absolutely correct values when no load is placed on it.
Page 30 Measurements seca 14.02.2013/RLEU/ARI/MRE 29/41 30-34-00-812d...
Page 31: Software Intended Purpose
NEC2 electronics [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|676| 677|684|685|954|957|959|963] as well as the seca 360° wireless USB adapter [456] contain software to control wireless communications. This software can be updated using the Windows-based "seca wireless updater" program. Removing or replacing the radio modules is generally not required.
Page 32: Updating The Radio Module Software
Updating the Radio Module Software Two cases can be distinguished: 1) The customer has a seca 360° wireless USB adapter [456] and has carried out set-up for his seca devices and this wireless USB adapter. In this case you should connect the customer's wireless USB adapter to your service PC and update the entire wireless group from your PC.
Page 33: Set-Up Process
Software seca mode (the so-called download kernel). The “Refresh” button refreshes the display. Set-up Process This function corresponds to the set-up process carried out for a device. First of all, select the current wireless group on the left in the main window.
Page 34: Updating The Radio Module Software
Software seca Updating the Radio Module Software The lower part of the main window is intended for the actual updating of the radio modules. The radio modules in the active wireless group are shown in a list together with a symbol.
Page 35: Technical Requirements For Updating
The revision contained on the card is given on the sticker on the SD card. For the seca wireless printer 465, revision code 465d or more recent is required (or 465dc, 465dj, 465dr for the Chinese, Japanese or Russian version).
Page 36: Updating Old Printers
Set-up is not possible in updating mode – it would no longer be possible to identify the corresponding device. In rare cases, updating will fail entirely. The relevant radio module must then be reaced. The radio module can be returned to the seca headquarters for repair. 14.02.2013/RLEU/ARI/MRE 35/41...
Page 37: Appendixes
Appendixes Appendixes Appendix 1: Measuring points on SECA module 08-06-18-163 [703] 14.02.2013/RLEU/ARI/MRE 36/41 30-34-00-812d...
Page 38 Appendixes Appendix Measuring points SECA module 08-06-18-165 [704|634|635|644|645|656|657|664|665|674>675|676|677|684|685|284|285] 14.02.2013/RLEU/ARI/MRE 37/41 30-34-00-812d...
Page 39 Appendixes Appendix 3: Measuring points on SECA module 08-06-18-167 [374|376|378] 14.02.2013/RLEU/ARI/MRE 38/41 30-34-00-812d...
Page 40 Appendixes Appendix 4: Measuring points on SECA module 08-06-18-195a [284|285] 14.02.2013/RLEU/ARI/MRE 39/41 30-34-00-812d...
Page 41 Appendixes Appendix Measuring points SECA module 08-06-18-186a [264|274|284|285] 14.02.2013/RLEU/ARI/MRE 40/41 30-34-00-812d...
Page 42 Appendixes Appendix 6: Measuring points on SECA module 08-06-18-223 [336] 14.02.2013/RLEU/ARI/MRE 41/41 30-34-00-812d...
Page 44 Replacement seca 336 NEC2 15.02.13/MRE 30-34-00-675_E1...
Page 45 Replacement seca 336 NEC2 Inhalt Safety measures ............................3 Safety instructions against electrostatic charging (ESD protection measures) ........... 3 Opening the scale............................4 Replacing ..............................4 Frame ..............................4 Load cell .............................. 4 Tray ..............................4 Display board ............................4 Assembling the scale...........................
Page 46: Safety Measures
Replacement seca 336 NEC2 Safety measures Before starting any work on the scale, first disconnect the power supply (mains and batteries). II Safety instructions against electrostatic charging (ESD protection measures) ESD protective measures (electrostatic discharge) must be taken whenever work is performed on electronic components.
Page 47: Opening The Scale
Replacement seca 336 NEC2 1 Opening the scale. Turn the scale over so that the frame “A” is at the top. Remove the batteries. Unsolder the 4 recessed head screws "B". Slightly lift the frame “A”, paying attention to the cable connections. Then turn the frame over again to the display side so that frame and tray “C”...
Page 48 Replacement seca 336 NEC2 Figgure 1: Technical ilustration modell 336 15.02.13/MRE 30-34-00-675_E1...
Page 49 Spare parts list 336 7021004 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...
Page 50 Spare parts list 336 7021094 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...
Page 51 Spare parts list 336 7021224 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...
Page 52 Spare parts list 336 7021244 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...
Page 53 Spare parts list 336 7021284 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...
Page 54 Spare parts list 336 7021368 update Jan. 2013, valid until SN.: acc. to drawing 30-34-00-674 Item Article Designation Price stage A020101089509 Frame pre-assemled A021212030509 Tray pre-assemled A011004220009 Levelling device A011701204009 Bubble level A021212226009 Support plate A663061010009 Battery contact single A663061015009 Battery contact dual A011305299807 Cover battery compartment...

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