Text preview for : 703_17-05-01-377_E1.pdf part of SECA 374|376|378|703|704|264|274|284|285|954|957|959|963 Service Manual for SECA, Column scale, digital, NEC II electronic and radio module. Model: 374|376|378|703|704|264|274|284|285|954|957|959|963



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Service Manual
for seca 703
Variants:
7031321007
7031321367
7031321993
Service Manual Number

17-05-01-377-
Valid as of: 01.10.2012
Description:
Column scale, digital, NEC II electronic and radio module




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 www.seca.com.



Contents:
Service instruction electronik 30-34-00-812 b

Cableplan 08-02-06-045 c

Replacement 30-34-00-849

Spare parts 703-13-21-007

Spare parts 703-13-21-367

Spare parts 703-13-21-993

Spare parts drawing display 30-34-00-805

Spare parts drawing baseframe 30-34-00-807

EMC Recommendation 30-35-00-219

Instruction manual 17-10-06-388




Manual number: 17-05-01-377-
General information seca




Electronics (NEC2) Service
Instructions


MODEL
[374|376|378|703|704|264|274|284|285|954|957|959|963]




05.10.12/RLEU/ARI/MRE 1/38 30-34-00-812b
General information seca
Contents

1 General Information [374|376|378|703|704|264|274|284|285|954|957|959|963]..................... 4

1.1 Type Plates [374|376|378|703|704|264|274|284|285|954|957|959|963] ..................... 4

1.2 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

1.3 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] ................................ 7

2.1 Adjustment of Scales [374|376|378|703|704|284|285|954|957|959|963] .................... 9

2.1.1 General [374|376|378|703|704|284|285|954|957|959|963]................................. 9

2.1.2 Calibration Counter / Number of Adjustments
[374|376|378|703|704|284|285|954|957|959|963] .............................................................. 10

2.1.3 Adjustment Mode and Displaying the Calibration Counter Contents
[374|376|378|703|704|954|957|959|963] ............................................................................ 10

2.1.4 Adjustment Mode and Displaying the Calibration Counter Contents [284|285] 10

2.1.5 Placing Adjustment Weights on the Scale
[374|376|378|703|704|284|285|954|957|959|963] .............................................................. 11

2.1.6 Example: Adjusting a Scale with 100g Graduations [703|704|284|285] ........... 11

2.1.7 Example: Adjusting a Baby Scale with 10g Graduations [374|376] .................. 12

2.1.8 Overview of Adjusting a Scale with 100g Graduations [703|704] ..................... 12

2.1.9 Overview of Adjusting a Baby Scale with 10 g Graduations [374|376|378] ...... 14

2.2 Adjusting the Head Slider [284|285] .......................................................................... 15

2.3 Displaying the Gravity Factor [374|376|378|703|704|284|285|954|957|959|963]...... 15

2.4 Setting the Gravity Factor [374|703|284|954]: ........................................................... 16

2.4.1 Example for Gravity Factor Setting [374|703|284|954] ..................................... 17

2.4.2 Summary of a Typical Gravity Factor Setting Sequence [374|703] .................. 17

3 Errors [374|376|378|703|704|284|285|954|957|959|963]....................................................... 19

3.1 Error Symptoms for Scale [374|376|378|703|704|284|285]....................................... 19

3.2 Error Symptoms for Head Slider [374|376|378|703|704|284|285|954|957|959|963] . 20

3.3 Radio Error Symptoms [374|376|378|703|704|284|285]............................................ 20



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General information seca
3.4 Scale Error Messages [374|376|378|703|704|284|285|954|957|959|963]................. 22

3.5 Head Slider Error Messages [264|274|284|285]........................................................ 23

3.6 Radio Error Message [374|376|378|703|704|284|285|954|957|959|963] .................. 24

4 Measurements [374|376|378|703|704|264|274|284|285|954|957|959|963]........................... 25

4.1 Supply Voltage [374|376|378|703|704|264|274|284|285|954|957|959|963] .............. 25

4.2 Load Cell [374|376|378|703|704|284|285|954|957|959|963] ..................................... 25

4.2.1 Measurement Using a Multimeter
[374|376|378|703|704|284|285|954|957|959|963] .............................................................. 25

5 Software intended Purpose.................................................................................................... 28

5.1 Installation and Start .................................................................................................. 28

5.2 Updating the Radio Module Software ........................................................................ 29

5.3 Set-up Process........................................................................................................... 30

5.4 Updating the Radio Module Software ........................................................................ 31

5.5 Technical Requirements for Updating ....................................................................... 32

5.6 Updating the Wireless Printer Software..................................................................... 32

5.7 Updating Old Printers................................................................................................. 33

5.8 Problems with Updating ............................................................................................. 33

Appendixes.................................................................................................................................. 34




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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.
These instructions are not suitable for users without specialist knowledge.
These instructions describe how to service the devices
[374|376|378|703|704|264|274|284|285] 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 are not valid for those types.
What is the structure of this document and how should you read it? Section 1
provides a short overview of the most important points for service. We
recommend you should read it completely. Section 2 deals with the
maintenance of the devices, i.e. work that may have to be carried out more
frequently. This section can be read as and when required. Troubleshooting is
covered in section 4, where you find detailed descriptions of various
measurements intended to identify specific errors. Starting point for
troubleshooting is section 3, which includes an overview of error descriptions
and the inspection steps required to identify them.


1.1 Type Plates
[374|376|378|703|704|264|274|284|285|954|957|959|963]

To enable you to identify the device, information about the model and serial
number is found on the underside or on the frame of the device (see Figure 1:
Type plate (left: approved [376|378|704|385]; right: non-approved) [376|703|284])

Note down this information so that you have it on hand in case you need to
contact us for queries or spare parts orders.




Figure 1: Type plate (left: approved [376|378|704|385]; right: non-approved) [376|703|284])


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General information seca
1.2 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.

1.2.2 Function [374|376|378|703|704|284|285]
The action of a force causes elastic deformation of the load cell. A
corresponding analog signal is supplied, which changes linearly with the force
applied. This signal is measured and evaluated by the scale electronics and
displayed as a weight value. Figure 2: Functional diagram [704|284|285]
shows the functional diagram for scales with separated modules for
determining and displaying the weight. Figure 3: Functional diagram
[374|376|378|703]

shows the functional diagram for scales with a single electronic module for
weight measurement and display.



Radio module

NEC2 Display module 08-06-18-172

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 2: Functional diagram [704|284|285]




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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]



1.3 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. 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 3: Absolute (left) and relative graduation marks (right) [264|274|284|285]




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Maintenance seca


2 Maintenance
[374|376|378|703|704|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). While the calibration count is displayed, a key must be kept pressed
(for more than 1.5 seconds); the scale then automatically displays the software
identification number and the check digit.


Keypress (any key) and START key simultaneously
- Calibration counter [see 2.1.2]
- Long keypress (any key)
Automatic display for 6 seconds
- XX.YY (software identification)
Then automatic display for 6 seconds
- XXXX (check digit)
Then automatic display
- CAL [see 2.1.5]
Long keypress (any key)
o DEC
Long keypress (any key)
o INC
Short keypress (any key)
- GAL [see1.3]
Long keypress (any key)
o XXXXX (gravity factor)
Short keypress (any key)
- INFO
Long keypress (any key)


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Maintenance seca


o No: X (module number)
Long keypress (any key)
o XXX.XX (firmware version, e.g. 290.07)
- End




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.
This software identification number is composed of a version number for the
program part that is subject to verification and a version number for the program
part that is not subject to verification.
Example: 01.08 01 - subject to verification
08 - not subject to verification


Whenever the firmware is changed, the version number for the program part
that is not subject to verification is increased. This is done by analogy with the
firmware index.
When a program part is changed that is subject to verification, the version
number for the program part that is subject to verification is also increased.


Software identification of the device
The overall version number of the program parts which are subject to
verification is the total of the version numbers (subject to verification) of the
individual hardware modules.
The overall version number of the program parts which are not subject to
verification is the total of the version numbers (not subject to verification) of the
individual hardware modules.


Firmware check digit
Every firmware is given its own check digit.


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Maintenance seca



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 Compact Weight module Extended display
290.08 290.08 290.08 290.08 298.08
01.08 01.08 01.08 01.08 01.08
1A47 1A47 1A47 1A47 4266




M704 M703 M285
290.08 / 290.08 290.08 290.08 / 298.08
02.16 01.08 02.16
348E 1A47 5CAD




2.1 Adjustment of Scales
[374|376|378|703|704|284|285|954|957|959|963]

2.1.1 General [374|376|378|703|704|284|285|954|957|959|963]
To compensate for linear measuring deviations, which occur e.g. as a result of
gravity variations in different gravity zones, the scale offers an adjustment
feature. This adjustment must also be carried out whenever the load cell is
replaced.
seca scales with modular NEC-G2 electronics are fitted with a software-
controlled adjustment device that is controlled using the existing operating
elements. When developing the adjustment device, special attention was paid
to the following requirements:




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Maintenance seca


It must be possible to readjust scales without any additional external
equipment/tools.
The readjustment device must be admissible for verification.
It must be possible to readjust the scales without calibrated test weights.
The readjustment device must be protected against inadvertent use.
Scale adjustment can be carried out manually as described in section 0 ,,Scales
fitted with the new, modular electronics are equipped with a calibration counter
allowing a software adjustment to be carried out in accordance with the
requirements for verified scales. Each completed adjustment procedure is
registered by the calibration counter, i.e. the number is automatically
incremented by 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.



2.1.2 Calibration Counter / Number of Adjustments
[374|376|378|703|704|284|285|954|957|959|963]
Scales fitted with the new, modular electronics are equipped with a calibration
counter allowing a software adjustment to be carried out in accordance with the
requirements for verified scales. Each completed adjustment procedure is
registered by the calibration counter, i.e. the number is automatically
incremented by 1. Non-approved scales are also fitted with a counter which
counts the number of adjustments.

2.1.3 Adjustment Mode and Displaying the Calibration Counter
Contents [374|376|378|703|704|954|957|959|963]
To begin readjustment or to display the calibration counter contents, start the
scale while pressing another key at the same time. The contents of the
calibration counter (i.e. the number of adjustment procedures carried out so far)
are then displayed for 18 seconds (flashing).
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.

2.1.4 Adjustment Mode and Displaying the Calibration Counter
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


05.10.12/RLEU/ARI/MRE 10/38 30-34-00-812b
Maintenance seca


calibration counter (i.e. the number of adjustment procedures carried out so far)
are then displayed for 18 seconds (flashing).
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.

2.1.5 Placing Adjustment Weights on the Scale
[374|376|378|703|704|284|285|954|957|959|963]
Once you have switched to adjustment mode as described in section 0 or 2.1.4,
the display shows the text "CAL". By pressing any key except for the start key
for more than 1.5 seconds, the actual readjustment mode is activated. The
display reads "dec". The weight value currently measured then appears. The
scale is in decrementing state. To switch over from decrementing to
incrementing mode and vice versa press a key for more than 1.5 seconds with a
test weight placed on the scale. The display will read "dec" or "inc" accordingly.
The test weight is at least 25% of the max. load of the scale (we recommend
approx. 66-75%).
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.
To minimize adjustment errors, readjustment can only be carried out using a test
weight above 25 % and below 100 % of the max. load. Otherwise the error "Er:x:15"
will be displayed.


2.1.6 Example: Adjusting a Scale with 100g Graduations
[703|704|284|285]
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. When the tare/hold key has been pressed (for more than 1.5
seconds), "inc" starts flashing.




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Maintenance seca


Now increase the value by the first 10 g (by briefly pressing the tare/hold key).
After this has been repeated x times, the value 200.0 (rounded!) appears on the
display although the internal measured value still is 199.95 kg (not rounded!).
To correct this rounding error, increment the value five times by 10 g to obtain
exactly 200.00 as the calculated value.
Complete the readjustment procedure as described in section 2.1.5.



2.1.7 Example: Adjusting a Baby Scale with 10g Graduations
[374|376]
The selected test weight is 15 kg. The current weight shown on the display is
14.970 kg (max. deviation of 30 g).
In this example, you must switch the scale to incrementing mode to carry out
readjustment. When the tare/hold key has been pressed (for more than 1.5
seconds), "inc" starts flashing.
Now increase the value by the first 1 g (by briefly pressing the tare/hold key).
Each alteration is shown on the display.
Complete the readjustment procedure as described in section 2.1.5.

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.
the start key.

Release both keys. The contents of the calibration counter
flash on the display for 18 seconds.

Press the tare/hold key for more than The system switches to adjustment
1.5seconds within the next 18seconds. selection mode and "CAL" flashes on the
display.

18 seconds have passed and no key has The scale switches off.



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Maintenance seca


been pressed.

Press the tare/hold key for more than 1.5 "dec" appears on the display (flashing)
seconds. and then the current weight (0.0 - also
flashing).

Place the test weight on the scale. The measured weight of the test weight
appears on the display (flashing).

Decide whether to decrement or to
increment:
Incrementing: Incrementing mode is activated; "inc"
Press the tare/hold key for more than 1.5 appears on the display.
seconds.
Decrementing: No action required as the
No output on the display.
scale already is in dec mode.

Decrementing or incrementing: The measured weight is decremented or
Again briefly press the tare/hold key (for incremented by 10 g. Please remember
that pressing the key does not always
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).
xxx.0 kg).

To correct this rounding error, decrement The display indicates the exact test
or increment the value five times by 10 g. weight (format: xxx.0 kg).



Press the tare/hold key until the display The display reads "Sto" and the scale
shows "Sto". switches off automatically.




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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 The contents of the calibration counter
pressed while simultaneously pressing flash on the display for 18 seconds.
the start key.

Release both keys. The contents of the calibration counter
flash on the display for 18 seconds.

Press the tare/hold key for more than 1.5 The system switches to adjustment
seconds. selection mode and "CAL" flashes on the
display.

18 seconds have passed and no key has The scale switches off.
been pressed.

Press the tare/hold key for more than 1.5 "dec" appears on the display (flashing)
seconds. and then the current weight (0.000 - also
flashing).

Place the test weight on the scale. The measured weight of the test weight
appears on the display (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.
scale already is in dec mode.

Decrementing or incrementing: The measured weight is decremented or



05.10.12/RLEU/ARI/MRE 14/38 30-34-00-812b
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).

Press the tare/hold key until the display The display reads "Sto" and the scale
shows "Sto". switches off automatically.




2.2 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.


2.3 Displaying the Gravity Factor
[374|376|378|703|704|284|285|954|957|959|963]

To view the gravity factor, the scale must first be switched to adjustment mode
(see section 0 or 2.1.4).
As soon as the text "CAL" is displayed, press a key briefly (less than 1.5
seconds).
The display shows "GAL".
Pressing a key for more than 1.5 seconds displays the gravity factor set. The
gravity factor is shown in mm/s.
The scale switches off again automatically after 18 seconds.

Note [376|378|704|285]:
On verified scales, the gravity factor can only be displayed as long as the calibration
count is 1.




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Maintenance seca


2.4 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.
As soon as the text "CAL" is displayed, press a key briefly (less than 1.5
seconds). The display shows "GAL".
Then press a key (for more than 1.5 seconds) to switch the scale to the mode
for gravity factor setting. The display shows "dec" and then the gravity factor
currently set. The gravity factor is shown in mm/s.
The scale is in decrementing state.
If the gravity factor displayed matches the target value, no further setting is
required and the menu item can be closed.
If the gravity factor shown on the display needs to be adjusted, it must be
altered by pressing a key until it matches the gravity factor required. Estimate
whether the required gravity factor is easier to reach by decrementing or by
incrementing. To toggle between decrementing mode and incrementing mode,
press a key (for more than 1.5 seconds.) (Display shows dec or inc.)
Press the key for less than 1.5 seconds to increase or decrease the gravity
factor displayed by 5 mm/s. Repeat the procedure until the gravity factor
displayed and the target gravity factor match.
Gravity factor setting can now be completed by pressing a key until the display
shows "Sto". The scale stores the new gravity factor and switches off
automatically.




05.10.12/RLEU/ARI/MRE 16/38 30-34-00-812b
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/s.
The target gravity factor is 98150 mm/s.
In this example, you must switch the scale to incrementing mode to set the
gravity factor. When the tare/hold key has been pressed (for more than 1.5
seconds), "inc" starts flashing.
Now start to increase the value by 5 mm/s (by briefly pressing the tare/hold
key). After this has been repeated three times, the value 98150 mm/s appears
on the display.
Complete the gravity factor setting procedure as described above.



2.4.2 Summary of a Typical Gravity Factor Setting Sequence
[374|703]




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.
the start key.

Release both keys. The contents of the calibration counter
flash on the display for 18 seconds.

Press the tare/hold key for more than 1.5 The system switches to adjustment
seconds. selection mode and "CAL" flashes on the
display.

18 seconds have passed and no key has The scale switches off.
been pressed.

Briefly press the tare/hold key (for less "GAL" flashes on the display.
than 1.5 seconds).

Press the tare/hold key for more than 1.5 "dec" appears on the display (flashing)
and then the current gravity factor - also


05.10.12/RLEU/ARI/MRE 17/38 30-34-00-812b
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.
scale already is in dec mode.

Decrementing or incrementing: The gravity factor displayed is
Again briefly press the tare/hold key (for decremented or incremented by 5 mm/s.
less than 1.5 seconds).

Repeat this step until the gravity factor The display shows the gravity factor
displayed matches the target gravity (format: xxxxx mm/s).
factor.

Press the tare/hold key until the scale The display reads "Sto" and the scale
switches off. switches off automatically.




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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.


3.1 Error Symptoms for Scale [374|376|378|703|704|284|285]

Error description Possible causes Remedy

Battery not inserted or flat
Check the batteries
(if provided)

Voltage supply defective See section 4.1
Scale does not
start Check cable
connections, check
Key panel defective or not
cable and key panel
connected
for interruptions,
replace if necessary

Packaging / transport
locking device not removed Check the scale
completely

Scale shows no Scale not correctly adjusted See section 2.1
weight or an
See replacement
incorrect weight Load cell damaged
instructions

Check base frame for
Force transmission into
damage or incorrect
load cell interrupted
assembly

Measurement
Measured values See replacement
electronics/load cell
vary greatly instructions
damaged




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Errors seca


3.2 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

Voltage supply defective See section 4.1

Head slider does Check cable
not start connections, check
Key panel defective or not
cable and key panel
connected
for interruptions,
replace if necessary

Insert scale defective /
missing / scale top and Check the insert scale
bottom reversed

Head slider not adjusted
Head slider does See section 2.2
correctly
not display a
length or an Clean the head slider
Light barriers soiled
incorrect length barriers with a cloth

Key unit not engaged
Check the key unit
correctly




3.3 Radio Error Symptoms [374|376|378|703|704|284|285]

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




05.10.12/RLEU/ARI/MRE 20/38 30-34-00-812b
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
Two devices are in the within radio
displays "Wait" at
teach-in phase at the same transmission range
the end of the
time and repeat the teach-
teach-in phase
in process




05.10.12/RLEU/ARI/MRE 21/38 30-34-00-812b
Errors seca




3.4 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 defective, load cell or
Er:X:11 supply lines damaged or electronics as
electronics defective required

Replace the
electronics

Check the initial
Er:X:12 Initial load too high
load

Reference weight
outside the
Er:X:15 Readjustment error
permitted range or
operating error

Er:X:16 Error when determining Avoid subjecting
the switch-on zero point the scale to
vibrations during
start-up

Er:X:30 Data transfer interrupted Check the bus
connection/
modular cable (if
provided)




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Errors seca


Er:X:32 Command buffer Check the bus
overflow error connection/
modular cable (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

Er:X:44 Calibration counter faulty Replace the
electronics

Er:X:45 EEPROM defective Replace the
electronics

Er:X:57 Quartz does not oscillate Replace the
electronics


3.5 Head 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 Replace the
electronics

Er:X:41 Incorrect EEPROM Replace the
access electronics




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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




3.6 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 Cause Remedy

Er:X:71 Radio module is Switch on the radio
switched off module via the
menu (see
operating
instructions)

Er:X:72 Error in teach-in mode Repeat teach-in for
the devices (see
operating
instructions)




05.10.12/RLEU/ARI/MRE 24/38 30-34-00-812b
Measurements seca


4 Measurements
[374|376|378|703|704|264|274|284|285|954|957|959|963]


The following section provides an overview of measurements which can be
performed to identify specific errors.


4.1 Supply Voltage
[374|376|378|703|704|264|274|284|285|954|957|959|963]

Measuring the supply voltage at the electronics board provides information on
whether the supply lines to the battery compartment and/or the power supply
unit are OK. Carry out the measurement by connecting a multimeter to
measuring points A and B (see Appendix).


4.2 Load Cell [374|376|378|703|704|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.

4.2.1 Measurement Using a Multimeter
[374|376|378|703|704|284|285|954|957|959|963]
First of all, unsolder the load cell from the electronics and measure the
resistance between the different connecting wires. The tables below show the
values to be expected for the different types of load cells:

Measurement between Ohmic resistance []

V+ and Sig+ 4 (blue and red) ~250-300

V- and Sig+ (blue and white) ~250-300

V+ and Sig- (red and black) ~250-300

V- and Sig- (white and black) ~250-300

Sig+/Sig-/V+/V- and aluminium > 1000 M
body of the load cell

Table 1: Resistance of platform load cell type Kogean / HBM [703|704x|954|957|959|963]



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Measurements seca


Measurement between Ohmic resistance []

V+ and Sig+ 4 (green and red) ~ 800-850

V- and Sig+ (green and white) ~ 800-850

V+ and Sig- (red and black) ~ 800-850

V- and Sig- (white and black) ~ 800-850

Sig+/Sig-/V+/V- and aluminium > 500 M
body of the load cell

Table 2: Resistance of Flintec / Kogean Planar Beam / --Wing load cell [376|378|284|285]




Measurement between Ohmic resistance []

V+ and Sig+ 4 (green and red) ~840

V- and Sig+ (green and white) ~840

V+ and Sig- (red and black) ~840

V- and Sig- (white and black) ~840

Sig+/Sig-/V+/V- and aluminium > 500 M
body of the load cell

Table 3: Resistance of VCARE [374]



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. If the load cell supplies incorrect values when unloaded, it is
definitely defective.




05.10.12/RLEU/ARI/MRE 26/38 30-34-00-812b
Measurements seca




05.10.12/RLEU/ARI/MRE 27/38 30-34-00-812b
Software seca


5 Software intended Purpose
The radio modules of the devices with NEC2 electronics
[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.
The Windows program "seca wireless updater" has three functions:
The configuration of the selected wireless group is displayed.
A set-up process can be performed.
The software in the radio modules or in the wireless USB adapter can be
updated.
Updating a wireless USB adapter takes approximately 30 seconds, updating a
radio module in a device can take up to five minutes, depending on the quality
of the wireless transmission, but typically takes 1.5 minutes.
.


5.1 Installation and Start

The seca wireless updater is
installed on a service PC or
notebook using a Windows
installation program (Setup). The
latest version of the radio module
software is copied to the PC
together with the installation.
You can display the version
numbers of the PC software and the
radio module software installed on
the PC. To do so, select the menu
item "Help" - "About wireless
updater". Example:




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Software seca

5.2 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.
2) The customer does not have a wireless USB adapter.
In this case you can use your own wireless USB adapter. Prior to
updating, set-up must be performed for the customer's devices.

Note! The customer's wireless group will be overwritten by the set-up
process. After updating, set-up of the customer's devices must be
repeated without connecting your wireless USB adapter. Teaching in
again is necessary since otherwise the customer would receive error
messages in future informing him that the wireless USB adapter is not
available.



Information regarding the currently active wireless group is displayed in the
main window of the seca wireless updater. In the example shown, wireless
group 2 is active in which set-up has been performed for a wireless USB
adapter, a baby scale and a wireless printer.




The seca wireless updater attempts to establish a wireless connection to the
individual devices. Responding devices are indicated by a green symbol,
devices in the wireless group which have been taught in but which are currently
not available e.g. because they are switched off are indicated by a red
symbol. A blue symbol means that the corresponding device is in updating




05.10.12/RLEU/ARI/MRE 29/38 30-34-00-812b
Software seca

mode (the so-called download kernel). The "Refresh" button refreshes the
display.




5.3 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. You can now start teaching-in by
pressing the "Set up wireless group" button.




Change the suggested transmission channels if
required and confirm your selection with
"Confirm channels".




Please switch on the devices to be taught in
one by one. Identification of the devices is
indicated by a series of green symbols. Set-up
is ended by pressing the "Complete login"
button.




05.10.12/RLEU/ARI/MRE 30/38 30-34-00-812b
Software seca

5.4 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.

Symbol Meaning
"No Action" updating is not carried out.
"Waiting" this radio module is going to be updated but is still in
the queue.
"Transmitting" this radio module is just being updated.
"OK" this radio module has been updated successfully.
"Error" an error occurred while updating this radio module.

Use the buttons on the right to activate or deactivate updating of the individual
modules or enable all modules in the list to be updated in succession.




05.10.12/RLEU/ARI/MRE 31/38 30-34-00-812b
Software seca

5.5 Technical Requirements for Updating

Updating by wireless transmission involves transferring large volumes of data.
You should therefore ensure you have a stable wireless connection.
The distance between the wireless USB adapter and the device to be updated
should - if possible - be less than 1.5 metres. For updating, you can connect the
wireless USB adapter to the PC using a standard 5 metre USB extension cable
(type A type A) and hold or place the wireless USB adapter in the vicinity of
the relevant radio module.
Battery-operated devices are switched off after a certain period of time
[374|376|378|703|704|954|957|959|963]. Updating will only be successful if the
device is prevented from switching off during data transmission. On scales, this
can be achieved by placing a weight on the scale, changing the weight value or
activating the HOLD function. The head sliders of the length measuring rods
[264|274|284|285] must be moved from time to time. When scales and length
measuring rods are being updated, a red bar regularly appears in the main
window of the seca wireless updater to remind you to carry out
activation/moving.




5.6 Updating the Wireless Printer Software

Note: In addition to updating the radio modules, it is essential that new
software is also loaded on the seca wireless printers [465, 466]. If the previous
wireless printer software is used in conjunction with updated radio modules,
printing and teaching in the wireless printer is not possible.

The wireless printer software is updated automatically when an SD card with
the new contents is inserted. 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). The wireless printer 466, accordingly, requires revision code
466d, 466dc, 466dj, 466dr or more recent.




05.10.12/RLEU/ARI/MRE 32/38 30-34-00-812b
Software seca

5.7 Updating Old Printers

The printers of the old generation cannot be updated. This means they cannot
be used in an updated wireless group. Re-programming of the printer at the
seca headquarters in Hamburg is necessary.
The first printout shows whether the printer
already belongs to the new generation. The
new version consists of the download
kernel, i. e. the program core "08-06-15-
306a (rev. 10)" and the actual printer
software "08-06-15-307b (rev.33)". Updating
the software via SD card is possible if the
kernel number 306a or a more recent
number (i.e. 306b, 306c, etc.) is given on
the printout.


5.8 Problems with Updating

If the wireless connection is unstable, the PC program "seca wireless updater"
repeatedly attempts to send the radio module software. If this is unsuccessful
you can try to restart updating.

Remedies if Updating Fails
- Hold the wireless USB adapter closer to the radio module

- Avoid metal surfaces in the vicinity

- Do not stay in the immediate line of sight between the USB wireless adapter
and the radio module

- Wait until interferences from electrical units (e.g. drills) or heavy wireless
traffic (WLAN, bluetooth) have stopped

NEVER repeat set-up of the wireless group if an updating attempt has failed.
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.




05.10.12/RLEU/ARI/MRE 33/38 30-34-00-812b
Appendixes seca


Appendixes




Appendix 1: Measuring points on SECA module 08-06-18-163 [703]




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Appendixes seca




Appendix 2: Measuring points on SECA module 08-06-18-165 [704|284|285]



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Appendixes seca




Appendix 3: Measuring points on SECA module 08-06-18-167 [374|376|378]


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Appendixes seca




Appendix 4: Measuring points on SECA module 08-06-18-195a [284|285]




05.10.12/RLEU/ARI/MRE 37/38 30-34-00-812b
Appendixes seca




Appendix 5: Measuring points on SECA module 08-06-18-186a
[264|274|284|285]




05.10.12/RLEU/ARI/MRE 38/38 30-34-00-812b
8 7 6 5 4 3 2 1




F 08-06-18-172 F
NEC G2 SMF
DMS - VCC (for optional assembly)
DMS - GND
DMS - HIGH
DMS - LOW
c


E E

08-06-18-163
NEC G2 Kompakt
(incl. LCD)




D D

mains
red (+) / blue (-)



Slot for membrane keyboard




RS 232 -
green
brown
white
Membrane keyboard
C C


load cell with plug connection red (+)
blue (-)

b

B B
batterie
red (+) / black (-) mains socket
08-06-16-124 65-42-10-211
RS 232 cable harness
VCC GND DMS-high DMS-low (for optional assembly)
load cell 1 2 3 4 Datum/Name: 29.03.2010 Fech. 19.05.2010 Fech. 15.09.2010 Fech.
nd.Mitteil. / CHANGE: SMF assembly RS232 holder removed
BLUE BLACK WHITE RED Index / REVISION: a b c
Hottinger
Erstellt / DRAWN Geprft / APPROVED Ver. c PROJECTION ALL RIGHTS CONCERNING THIS DOCUMENT AND ITS
05.03.2010 15.09.2010 CONTENTS RESERVED. Alle Rechte an und aus diesen
A Tedea/Vishay GREEN BLACK RED WHITE HAMBURG Unterlagen verbleiben seca gmbh. & co. kg.
Fechner Winterberg
Mastab / SCALE : Werkstoff / MATERIAL : Benennung / TITLE : Nr. / NO. :
Kogean GREEN BLACK WHITE RED

1:1
Kabelplan Mod. 703 NEC II 08-02-06-045
Cable plan mod. 703 NEC II
Mittwoch, 22. September 2010 19:16:35




8 7 6 5 Blatt/SHEET 1/1
R:\ARCHIV_DBWORKS\Firma\08-\08-02-\08-02-06-045
Replacement instructions

seca 703




05.10.12 /MRE 1 30-34-00-849_E
Replacement instructions

sec