Seca 374 Series Service Manual
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Seca 374 Series Service Manual

Babyscale with nec ii electronic and radio module
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Variants:
3741321004
3741321364
3767021008
3767021098
3767021154
3767021228
3767021288
Content:
Service instruction electronic
Cableplan
Replacement
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts
Spare parts drawing
Manual number:
17-05-01-356-a
Service Manual
for seca 374/376
Description:
Babyscale with NEC II electronic and radio module
Service Manual Number
17-05-01-356-a
Valid as of:
30-34-00-812 a
08-02-06-050 d
30-34-00-813
374-13-21-004
374-13-21-364
376-70-21-008
376-70-21-098
376-70-21-154
30-34-00-814
01.08.2011

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Summary of Contents for Seca 374 Series

  • Page 1 Service Manual Variants: for seca 374/376 3741321004 3741321364 3767021008 Service Manual Number 3767021098 3767021154 17-05-01-356-a 3767021228 Valid as of: 01.08.2011 3767021288 Description: Babyscale with NEC II electronic and radio module Content: Service instruction electronic 30-34-00-812 a Cableplan 08-02-06-050 d Replacement...
  • Page 2 General information seca Electronics (NEC2) Service Instructions ODEL 374|376|378|703|704|264|274|284|285|954|957|959|963 17.08.11/RLEU/ARI/MRE 1/36 30-34-00-812a...

  • Page 3: Table Of Contents

    General information seca Contents 1 General Information [374|376|378|703|704|264|274|284|285|954|957|959|963]..... 4 Type Plates [374|376|378|703|704|264|274|284|285|954|957|959|963] ..... 4 Design and Function of the Scale Part [374|376|378|703|704|264|274|284|285|954|957|959|963] ............5 1.2.1 Design [374|376|378|703|704|284|285] .............. 5 1.2.2 Function [374|376|378|703|704|284|285]............5 Design and Function of the Head Slider [264|274|284|285] ........6 2 Maintenance [374|376|378|703|704|264|274|284|285|954|957|959|963] ........
  • Page 4 General information seca Scale Error Messages [374|376|378|703|704|284|285|954|957|959|963]....20 Head Slider Error Messages [264|274|284|285]............21 Radio Error Message [374|376|378|703|704|284|285|954|957|959|963] ....22 4 Measurements [374|376|378|703|704|264|274|284|285|954|957|959|963]......23 Supply Voltage [374|376|378|703|704|264|274|284|285|954|957|959|963] ....23 Load Cell [374|376|378|703|704|284|285|954|957|959|963] ........23 4.2.1 Measurement Using a Multimeter [374|376|378|703|704|284|285|954|957|959|963] .............. 23 5 Software intended Purpose....................

  • Page 5: General Information [374|376|378|703|704|264|274|284|285|954|957|959|963]

    General information seca 1 General Information 374|376|378|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.

  • Page 6: Design And Function Of The Scale Part [374|376|378|703|704|264|274|284|285|954|957|959|963]

    General information seca Design and Function of the Scale Part [374|376|378|703|704|264|274|284|285|954|957|959|963] 1.2.1 Design [374|376|378|703|704|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 7: Design And Function Of The Head Slider [264|274|284|285]

    General information seca Radio modulel 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] 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 8: Maintenance [374|376|378|703|704|264|274|284|285|954|957|959|963]

    1. Non-approved scales are also fitted with a counter which counts the number of adjustments. ” or using seca serva 2.0. Manual adjustment will not correct any corner errors. 17.08.11/RLEU/ARI/MRE 7/36...

  • Page 9: Calibration Counter / Number Of Adjustments

    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 10: Example: Adjusting A Scale With 100 G Graduations [703|704|284|285]

    Maintenance seca Adjustment can now be completed by pressing a key until the display shows “Sto”. The scale computes and stores a new linearity coefficient and switches off automatically. Your scale is now adjusted. Remove the test weight. Note Timeout control is not active for the phase of placing and confirming the test weight.

  • Page 11: Overview Of Adjusting A Scale With 100 G Graduations [703|704]

    Maintenance seca Complete the readjustment procedure as described in section 2.1.5. 2.1.8 Overview of Adjusting a Scale with 100 g Graduations [703|704 Action carried out by the user Result The scale is switched off. No values or characters on the display.
  • Page 12 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 13: Overview Of Adjusting A Baby Scale With 10 G Graduations [374|376|378]

    Maintenance seca 2.1.9 Overview of Adjusting a Baby Scale with 10 g 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...

  • Page 14: 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 15: Setting The Gravity Factor [374|703|284|954]

    Maintenance seca Setting the Gravity Factor [374|703|284|954]: The gravity factor can only be set on non-approved models [374|703|284] Before the gravity factor can be set, the scale must first be switched to adjustment mode (see section 0 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 16: Example For Gravity Factor Setting [374|703|284|954]

    Maintenance seca 2.4.1 Example for Gravity Factor Setting [374|703|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 17 Maintenance seca seconds. 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 18: Errors [374|376|378|703|704|284|285|954|957|959|963]

    Errors seca 3 Errors [374|376|378|703|704|284|285|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 19: Error Symptoms For Head Slider [374|376|378|703|704|284|285|954|957|959|963]

    Errors seca Error Symptoms for Head Slider [374|376|378|703|704|284|285|954|957|959|963] 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 20 Errors seca Error description Possible causes Remedy Device beeps twice when Receiving device not Switch on all devices sending and switched on in the radio network printing Switch off all devices The device within radio Two devices are in the displays “Wait”...

  • Page 21: Scale Error Messages [374|376|378|703|704|284|285|954|957|959|963]

    Scale Error Messages [374|376|378|703|704|284|285|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 22: 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 23: Radio Error Message [374|376|378|703|704|284|285|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|954|957|959|963 Display: Er:x:nr Electronics detecting a fault. X : Module number No Fault number Scale displays...

  • Page 24: Measurements [374|376|378|703|704|264|274|284|285|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 25 Measurements seca Messung zwischen Ohmscher Widerstand [Ω] und Sig 4 (grün und rot) ~ 800-850 V- und Sig (grün und weis) ~ 800-850 und Sig- (rot und schwarz) ~ 800-850 und Sig- (weiß und schwarz) ~ 800-850 /Sig-/V /V- und Alukörper >...
  • Page 26 Measurements seca 17.08.11/RLEU/ARI/MRE 25/36 30-34-00-812a...

  • Page 27: Software Intended Purpose

    [374|376|378|703|704|264|274|284|285|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 28: 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 29: 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 30: 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 31: 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 32: 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. 17.08.11/RLEU/ARI/MRE 31/36...

  • Page 33: Appendixes

    Appendixes seca Appendixes Appendix 1: Measuring points on SECA module 08-06-18-163 [703] 17.08.11/RLEU/ARI/MRE 32/36 30-34-00-812a...
  • Page 34 Appendixes seca Appendix 2: Measuring points on SECA module 08-06-18-165 [704|284|285] 17.08.11/RLEU/ARI/MRE 33/36 30-34-00-812a...
  • Page 35 Appendixes seca Appendix 3: Measuring points on SECA module 08-06-18-167 [374|376|378] 17.08.11/RLEU/ARI/MRE 34/36 30-34-00-812a...
  • Page 36 Appendixes seca Appendix 4: Measuring points on SECA module 08-06-18-195a [284|285] 17.08.11/RLEU/ARI/MRE 35/36 30-34-00-812a...
  • Page 37 Appendixes seca Appendix Measuring points SECA module 08-06-18-186a [264|274|284|285] 17.08.11/RLEU/ARI/MRE 36/36 30-34-00-812a...
  • Page 38 RED batterie + BLACK batterie GND BLUE Main GND RED Main +12V...
  • Page 39 Replacement instructions seca 374/376 24.09.2010 /MRE 30-34-00-813...
  • Page 40 Replacement instructions seca 374/376 Contents Safety measures............................3 Safety instructions regarding the prevention of electrostatic charging (ESD protective measures) ... 3 Opening the scale............................4 1.1 Opening the scale when removing load cells or the mains connection............4 Replacing..............................4 Replacing the adjusting feet........................

  • Page 41: I Safety Measures

    Replacement instructions seca 374/376 Safety measures Before starting any work on the scale, first disconnect the mains (mains and batteries). II Safety instructions regarding the prevention of electrostatic charging (ESD protective measures) ESD protective measures (electrostatic discharge) must be taken whenever work is performed on electronic components.

  • Page 42: Opening The Scale

    Replacement instructions seca 374/376 1 Opening the scale (see Fig. 01)  Open the battery compartment cover and remove the battery pack. Now unscrew screw (B), push the electronics compartment cover (A) slightly to the right and remove Figure 01: Opening the scale 1.1 Opening the scale when removing load cells or the mains connection...

  • Page 43: Replacing Load Cells

    Replacement instructions seca 374/376 2.2 Replacing load cells (see Fig. 03)  When replacing a load cell (F), unsolder the 4 cable connections (G) for the cell from the electronics module (H). Please also refer to the cabling diagram no.

  • Page 44: Replacing Viewing Glass And Keypads

    Replacement instructions seca 374/376 2.6 Replacing viewing glass and keypads (see Fig. 04)  Releasing the electronic module (H, Fig. 03) gives you access to the keypads (L) and the viewing glass (M). To remove the viewing glass (M), carefully release the 4 locking tabs on the circumference.
  • Page 45 Spare parts 374 13 21 004 updated 07.10 valid to SN: acc. to drawing 30-34-00-814 Pos. Article Name of item price-stage 02-01-01-267-807 Frame 02-03-01-073-509 Mould complete 01-22-13-319-009 Viewing glass 08-06-12-091-009 Load cell 5,5kg 01-13-01-221-009 Rubber element 01-10-04-222-816 Levelling screw 01-13-05-270-009 Plug 01-18-01-296-009 Button left links...
  • Page 46 Spare parts 374 13 21 364 updated 07.10 valid to SN: Pos. Article Name of item price-stage 02-01-01-267-807 Frame 02-03-01-073-509 Mould complete 01-22-13-319-009 Viewing glass 08-06-12-091-009 Load cell 5,5kg 01-13-01-221-009 Rubber element 01-10-04-222-816 Levelling screw 01-13-05-270-009 Plug 01-18-01-296-009 Button left links hold, tare 01-18-01-297-009 Button middle...
  • Page 47 Spare parts 376 70 21 008 updated 07.10 valid to SN: acc. to drawing 30-34-00-814 Pos. Article Name of item price-stage 02-01-01-267-807 Frame 02-03-01-073-509 Mould complete 01-22-13-319-009 Viewing glass 08-06-12-236-009 Load cell 7,5kg 01-13-01-221-009 Rubber element 01-10-04-222-816 Levelling screw 01-17-01-204-009 Bubble level 01-18-01-296-009 Button left links...
  • Page 48 Spare parts 376 70 21 098 updated 07.10 valid to SN: acc. to drawing 30-34-00-814 Pos. Article Name of item price-stage 02-01-01-267-807 Frame 02-03-01-073-509 Mould complete 01-22-13-319-009 Viewing glass 08-06-12-236-009 Load cell 7,5kg 01-13-01-221-009 Rubber element 01-10-04-222-816 Levelling screw 01-17-01-204-009 Bubble level 01-18-01-296-009 Button left links...
  • Page 49 Spare parts 376 70 21 154 updated 07.10 valid to SN: acc. To drawing 30-34-00-814 Pos. Article Name of item price-stage 02-01-01-267-807 Frame 02-03-01-073-509 Mould complete 01-22-13-319-009 Viewing glass 08-06-12-236-009 Load cell 7,5kg 01-13-01-221-009 Rubber element 01-10-04-222-816 Levelling screw 01-17-01-204-009 Bubble level 01-18-01-299-009 Button left links, CN...

This manual is also suitable for:

376 series37413210043741321364376702100837670210983767021154 ... Show all

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