Table of Contents
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Service Manual
for seca 634/ 635
Variants:
6341321008
6341321378
6357021004
6357021094
6357021224
6357021244
6357021284
Description:
Large platform Electronic scale with a wide measurement range specially for adipose
patients
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:
Servic description electronic
Cableplan
Replacement
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts drawing display
spare parts drawing Baseframe
EMC Recommendation
Instruction manual 684
Manual number:
17-05-01-371-_
www.seca.com
.
30-34-00-812 c
Instruction manual 685
08-02-06-058 a
30-34-00-856
634 1321008
634 1321378
635 7021004
635 7021094
635 7021224
635 7021244
635 7021284
30-34-00-839
30-34-00-837
30-34-00-519
17-10-06-380
Service Manual Number
17-05-01-371-_
Valid as of:
01.02.2013
17-10-07-605
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Summary of Contents for Seca 6341321008
- Page 1 Large platform Electronic scale with a wide measurement range specially for adipose patients 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 [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] 14.11.12/RLEU/ARI/MRE 1/40 30-34-00-812c...
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Page 3: Table Of Contents
General information seca Contents 1 General Information [374|376|378|634|635|644|645|656|657|664|665|674|675|676|677|684|685|70 3|704|264|274|284|285|954|957|959|963] ............5 Type Plates [374|376|378|634|635|644|645|656|657|664|665|674|675|676|677|684|685|70 3|704|264|274|284|285|954|957|959|963]............5 Design and Function of the Scale Part [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 [374|376|378|703|704634|635|644|645|656|657|664|665|674|675|676|677|6 84|685|284|285] ..................6 1.2.2 Function [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... - Page 4 General information 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] 2.1.7 Example: Adjusting a Baby Scale with 10g Graduations [374|376] 2.1.8 Overview of Adjusting a Scale with 100g Graduations [703|704] 14 2.1.9 Overview of Adjusting a Baby Scale with 10g Graduations [374|376|378] ....................
- Page 5 General information seca 4 Measurements [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|67 6|677|684|685|954|957|959|963]..............27 Supply Voltage [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|67 6|677|684|685|954|957|959|963] ..............27 Load Cell [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|67 6|677|684|685|954|957|959|963] ..............27 4.2.1 Measurement Using a Multimeter [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] ............27 5 Software intended Purpose ................30 Installation and Start ................30 Updating the Radio Module Software..........
- Page 6 General information seca 1 General Information 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 These service instructions are intended for specialist staff responsible for maintenance and repair of the devices. These persons must be familiar with all the relevant electro-technical regulations and must adhere to them any time.
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Page 7: Design [374|376|378|703|704634|635|644|645|656|657|664|665|674|675|676|677|6 84|685|284|285]
General information seca Design and Function of the Scale Part [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] 1.2.1 Design [374|376|378|703|704634|635|644|645|656|657|664|665|674|675|6 76|677|684|685|284|285] The scale consists of the following main parts: the frame with up to four load cells, a display unit, a key panel and a power supply unit. -
Page 8: Design And Function Of The Head Slider [264|274|284|285]
General information seca Radio module NEC2 Compact module 08-06-18-172 (Weight measurement and display) 08-06-18-167 oder -163 Keyboard DC Supply Load Load Load Load cell cell cell cell Figure 3: Functional diagram [374|376|378|703|954|957|959|963] Design and Function of the Head Slider [264|274|284|285] The head slider uses the measuring method of visual reading off from the insert scale. -
Page 9: Maintenance [374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|676|677|68 4|685|264|274|284|285|954|957|959|963]
Maintenance seca Maintenance [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.
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Page 11: Adjustment Of Scales [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]
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: Placing Adjustment Weights On The Scale
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 [703|704|284|285|634|635|644|645|656|657|664|665|675|676|677 |684|685]
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).
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Page 17: Overview Of Adjusting A Baby Scale With 10G Graduations [374|376|378]
Maintenance seca 2.1.9 Overview of Adjusting a Baby Scale with 10g Graduations [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]
Maintenance seca Again briefly press the tare/hold key (for incremented by 1 g. less than 1.5 seconds). Repeat this step until the measured The display indicates the test weight weight matches the test weight (format: (format: xx.000 kg). xx.000 kg). -
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 [374|703|634|644|656|664|674|676|684|284|954]
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.
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Page 22: Errors
Errors seca 3 Errors [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 [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]
Scale Error Messages [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 required electronics defective... -
Page 26: Head Slider Error Messages [264|274|284|285]
(if provided) Isolate briefly (60 sec) Er:X:40 EEPROM data faulty Readjust the scale or upload the scale adjustment data to the EEPROM via seca serva 2.0 Er:X:41 Incorrect EEPROM Replace the access electronics Er:X:43 EEPROM defective Replace the electronics... -
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]
Errors seca Er:X:43 EEPROM defective Replace the electronics 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... -
Page 28: Measurements [374|376|378|703|704|284|285|634|635|644|645|656|657|664|665|674|675|67 6|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 Measurements seca Measurement between Ohmic resistance [Ω] and Sig 4 (blue and red) ~250-300 V- and Sig (blue and white) ~250-300 and Sig- (red and black) ~250-300 ~250-300 and Sig- (white and black) /Sig-/V /V- and aluminium > 1000 M...
- Page 30 Measurements seca 14.11.12/RLEU/ARI/MRE 29/40 30-34-00-812c...
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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. 14.11.12/RLEU/ARI/MRE 35/40... -
Page 37: Appendixes
Appendixes Appendixes Appendix 1: Measuring points on SECA module 08-06-18-163 [703] 14.11.12/RLEU/ARI/MRE 36/40 30-34-00-812c... - 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] 14.11.12/RLEU/ARI/MRE 37/40 30-34-00-812c...
- Page 39 Appendixes Appendix 3: Measuring points on SECA module 08-06-18-167 [374|376|378] 14.11.12/RLEU/ARI/MRE 38/40 30-34-00-812c...
- Page 40 Appendixes Appendix 4: Measuring points on SECA module 08-06-18-195a [284|285] 14.11.12/RLEU/ARI/MRE 39/40 30-34-00-812c...
- Page 41 Appendixes Appendix Measuring points SECA module 08-06-18-186a [264|274|284|285] 14.11.12/RLEU/ARI/MRE 40/40 30-34-00-812c...
- Page 43 Replacement seca 634, 635 07.02.2013/MRE 1 (9) 30-34-00-857...
- Page 44 Replacement seca 634, 635 Inhalt Safety measures............................3 Safety instructions against electrostatic charging (ESD protection measures)........... 3 Baseframe ..............................4 Replacing the NEC2 weight module ....................4 Replacing the load cells ........................5 Setting the overload protection devices....................7 Display ................................. 8 Replacing the membrane keypad .......................
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Page 45: Safety Measures
Replacement seca 634, 635 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 46: Baseframe
Replacement seca 634, 635 1 Baseframe Please be sure to observe the sequence listed below when removing/fitting the parts! 1.1 Replacing the NEC2 weight module Detach the plug-in connection (A) of the modular cable. Release the four screw connections (B) on the weight module housing (C) and take off the cover (D). -
Page 47: Replacing The Load Cells
Replacement seca 634, 635 1.2 Replacing the load cells To replace the load cells (G, Fig. 3), first detach the frame from the platform. Remove the platform mat to do so. Then undo the four screws (H, fig.2) that connect the platform with the frame. - Page 48 Replacement seca 634, 635 When assembling the load cells (G, Fig. 3), the tightening torque for the four cheese head screws (J, Fig. 3) of M = 12.5 Nm must be observed. Figure 3: Replacing the load cell 05.02.13/MRE 30-34-00-856_E1...
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Page 49: Setting The Overload Protection Devices
Replacement seca 634, 635 1.3 Setting the overload protection devices To protect the scale from overload, four overload protection devices are provided. Set the specified values for the relevant model in accordance with the table (Table 1); use gauges for this purpose. -
Page 50: Display
Replacement seca 634, 635 2 Display Please be sure to observe the sequence listed below when removing/ fitting the parts! 2.1 Replacing the membrane keypad Unscrew the side covers (L) on the left and right. Move the left and the right operating housing (R, S) slightly outwards and remove the display cover (M). -
Page 51: Replacing Battery Compartment, Nec2 Display And Radio Module
Replacement seca 634, 635 2.2 Replacing battery compartment, NEC2 display and radio module First proceed as described in section 2.1. Remove the right operating housing. (S, Fig.5) Unscrew the screw on the bottom housing profile which secures the board holder (P) and push the holder slightly to the left –... - Page 52 Spare parts list 634 1321008 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 53 Spare parts list 634 1321008 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-939 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027605...
- Page 54 Spare parts list 634 1321378 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 55 Spare parts list 634 1321378 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027605...
- Page 56 Spare parts list 635 7021004 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 57 Spare parts list 635 7021004 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027606...
- Page 58 Spare parts list 635 7021094 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 59 Spare parts list 635 7021094 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027606...
- Page 60 Spare parts list 635 7021224 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 61 Spare parts list 635 7021224 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027606...
- Page 62 Spare parts list 635 7021244 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 63 Spare parts list 635 7021244 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027606...
- Page 64 Spare parts list 635 7021284 Frame update April 2012, Valid until SN: acc. to drawing 30-34-00-837 Item Article Designation Price stage A020203098009 Frame A020303284009 Platform plate A020303285009 Platform insert A011304341009 Platform mat A080612264009 Load cell A080612246009 Rubber buffer A010808331009 Spacer rubber buffer A011004007009 Levelling device...
- Page 65 Spare parts list 635 7021224 Display update April 2012, Valid until SN: acc. to drawing 30-34-00-839 Item Article Designation Price stage A340201226807 Housing profile punched for battery A340201216807 Operating housing left A340201217807 Operating housing right A340201219807 Cover Operating housing right A340201220807 Side cap A340201027606...
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