BTEK DD 700 User manual

• DD 700 • DD 700ic • DD 700i
Models Include:

1
INSTALLATION MANUAL DD700
CONTENTS
1 ACCESS TO METROLOGICAL PARAMETERS...............................................................................3
1.1 Version with connectors .........................................................................................................................3
1.2 Version with cable glands.......................................................................................................................4
1.3 Analogue scale sampling........................................................................................................................5
1.3.1 Setup Menu/Scale/Sampling/Run........................................................................................5
1.3.2 Setup Menu/Scale/Sampling/View data...............................................................................6
1.3.3 Setup Menu/Scale/Sampling/Correction..............................................................................6
1.4 Setup Menu/DIGITAL Scale/Sampling/Angles calibration .................................................................7
1.4.1 Setup Menu/Digital Scale/Test ............................................................................................8
1.4.2 Setup Menu/DIGITAL Scale/Test/Saving terminal data......................................................9
1.4.3 Setup Menu/DIGITAL Scale/Test/Restore terminal data....................................................9
2 DISASSEMBLING COMPONENTS..................................................................................................10
2.1 Disassembling support (only for stainless steel version) ......................................................................10
2.2 Opening the terminal............................................................................................................................11
2.2.1 ABS Version......................................................................................................................11
2.2.2 Stainless steel version.......................................................................................................12
2.3 Disassembling display .....................................................................................................................13
2.3.1 ABS Version ....................................................................................................................................13
2.3.2 Stainless steel version.......................................................................................................14
2.4 Disassembling terminal power supply (only for stainless steel version with cable gland)................15
2.5 Disassembling lithium battery..........................................................................................................16
2.5.1 ABS Version......................................................................................................................16
2.5.2 Stainless steel version with connectors.............................................................................17
2.5.3 Stainless steel version with cable glands ..........................................................................18
2.6 Disassembling first analogue scale..................................................................................................19
2.7 Disassembling second analogue scale............................................................................................19
2.7.1 ABS Version......................................................................................................................19
2.7.2 Steel version with connectors.................................................................................................20
2.7.3 Stainless steel version with cable glands ..........................................................................21
2.8 Disassembling digital scale..............................................................................................................22
2.8.1 ABS Version......................................................................................................................22
2.8.2 Stainless steel version with connectors.............................................................................23
2.8.3 Stainless steel version with cable glands................................................................................24
2.9 Disassembling I/O board..................................................................................................................25
2.9.1 ABS Version......................................................................................................................25
2.9.2 Stainless steel version with connectors.............................................................................26
2.9.3 Stainless steel version with cable glands................................................................................27
2.10 Disassembling motherboard............................................................................................................28
2.10.1 Plastic version ...................................................................................................................28
2.10.2 Stainless steel version with connectors.............................................................................29
2.10.3 Stainless steel version with cable glands.............................................................................30
2.12 Installing optional boards....................................................................................................................31
2.13 Connecting serial port peripheral devices and USB.........................................................................31

2
INSTALLATION MANUAL DD700

3
INSTALLATION MANUAL DD700
1 ACCESS TO METROLOGICAL PARAMETERS
To access customisation of the metrological parameters (parameters more significantly linked to
legal operation of the scale) you must press the calibration button
1.1 Version with connectors
Figure 1.1-1 - Calibration button - Plastic terminal version
Figure 1.1-2 - Calibration button - Stainless steel terminal version
Key:
1. Stamped self-adhesive label sealing the access hole to the calibration switch
2. Calibration switch
Referring to the previous figures, proceed as follows:
Switch the terminal on.
Remove the self-adhesive label (ref. 1) which seals the access hole to the calibration switch.
Using a non-metal tool, press the calibration switch (ref. 2).
ATTENTION
Removing the metrological stamps makes it impossible to use the weighing terminal for
commercial transactions towards third parties. To restore them, contact the After-Sales Service of
the Assistance Network.
2
1
2
1

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INSTALLATION MANUAL DD700
1.2 Version with cable glands
Figure 1.2-1 - Calibration button - Stainless steel terminal version
Key:
1. Terminal opening protection seal
2. Stamped self-adhesive label sealing the protective screw of the calibration switch
3. Calibration switch
Referring to the previous figure, proceed as follows:
Switch the terminal on.
Remove the seal (ref. 1), unscrew the four screws on the cover of the terminal and open it,
being careful not to detach the display connector.
Remove the self-adhesive label (ref. 2) which seals the access hole to the calibration switch.
Using a non-metal tool, press the calibration switch (ref. 3).
ATTENTION
Removing the metrological stamps makes it impossible to use the weighing terminal for
commercial transactions towards third parties. To restore them, contact the After-Sales Service of
the Assistance Network.
2
1
3

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INSTALLATION MANUAL DD700
1.3 Analogue scale sampling
1.3.1 Setup Menu/Scale/Sampling/Run
Scale sampling consists in calibrating the instrument. This is required whenever it was not possible
to be done when the scale was built or when mechanical or electronic pieces are replaced.
The sampling procedures have been developed based on different requirements which can be
encountered.
Standard
sampling
This is the procedure recommended for the majority of weighing systems. To
carry it out, you must have sample weights or a known weight available. When
performing sampling, use precision sample weights compatible with the class
and capacity of the instrument.
Full scale zero
To be used in linear weighing systems.
A sample weight is required for sampling the full scale value. Proceed as follows:
make sure there are no weights on the scale.
press RUN to execute zero sampling.
by means of the option CHANGE, set the full scale weight value
(corresponding to the sample weight value) (to enter a number, see the
chapter Using the terminal in the user manual)
position the sample weight on the scale
press RUN to sample the full scale value
Linearised at one point, Linearised at two points.
To be used in systems with a more or less emphasised non-linearity. Aside from
sampling zero and the full scale value, it also samples valid intermediate points
both for the ascent and descent of the Real weight/Measured weight curve.
At least two sample weights are required for linearised sampling at one point,
one for sampling the intermediate value and the other for sampling the full scale
value.
At least 3 sample weights are required for linearised sampling at two points, one
for sampling the 1st intermediate value, the second for sampling the 2nd
intermediate value and the 3rd for sampling the full scale value.
The procedure (indicated on the display) is the same as for sampling the Full
Scale Zero, with the only difference that, in this case, more than one point must
be sampled.
Hysteresis correction at one point, Hysteresis correction at two points.
To be used in systems with a hysteresis. Aside from sampling zero and the full
scale value, it also samples different intermediate points for the ascent and
descent of the Real weight/Measured weight curve.
At least 2 sample weights are required for the hysteresis correction at 1 point,
one for sampling the 1st intermediate point, and the other to add to the first for
sampling the full scale value.
Removing the weights in inverse order samples the descent.
At least 3 sample weights are required for the hysteresis correction at two points,
one for sampling the 1st intermediate point, the second to add to the 1st for
sampling the 2nd intermediate point, the third to add to the first two for sampling
the full scale value.

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INSTALLATION MANUAL DD700
Removing the weights in inverse order samples the descent.
The procedure (indicated on the display) is the same as for sampling the Full
Scale Zero, with the only difference that, in this case, more than one point must
be sampled.
Zero sampling
Zero sampling is necessary whenever the scale has already been calibrated and
the zero value has moved when the unit switches on. This can happen when the
preset tare is not known exactly at the moment of the first sampling, or when an
unexpected weight is on the scale. No sample weight needs to be available.
The procedure to follow is indicated on the display.
Inverse
sampling
Inverse sampling can be useful in some cases when it is difficult to load and
unload the known weight from the weighing device, for example in hoppers or
batching systems.
The procedure to follow is indicated on the display.
1.3.2 Setup Menu/Scale/Sampling/View data
See the Customisation chapter in the advanced user manual.
1.3.3 Setup Menu/Scale/Sampling/Correction
This option allows you to correct sampling without needing to repeat the procedure.
Depending on the data available, the correction can be calculated in the different ways explained
below.
Weight
Editor
If known, the weight correction can be set directly.
The set value must be within the range:
- (Capacity/100) <Weight < + (Capacity/100)
Gravity
Editor
sampling site
By selecting Campogalliano (headquarters of the Manufacturer) the gravity
acceleration value of Campogalliano (9.80552 m/s) is set automatically.
Otherwise you may set a gravity acceleration value within the range (9.60000 ÷
10.00000) m/s..
destination site
Knowing the gravity acceleration of the sampling site, you must know the gravity
acceleration of the destination site to calculate the weight correction. You may
set a value within the range (9.60000 ÷ 10.00000) m/s.
Otherwise, the gravity acceleration value can be set as the Coordinates of the
destination site: latitude (0 ÷ 90)° and altitude (-1000 ÷ +9000) m.
Based on the data entered, the program calculates the weight correction and
enters the value obtained in the Weight parameter.

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INSTALLATION MANUAL DD700
1.4 Setup Menu/DIGITAL Scale/Sampling/Angles calibration
The angle calibration operation makes it possible to correct any assembly errors of the digital cells,
construction tolerances, etc.
To calibrate the angles, the sample weight (not necessarily known) must be loaded in sequence on
each individual digital cell.
Progressive
calibration (1,
2,…, n)
The weight, and the weighing symbols are shown initially on the display. Keep in
mind that angle calibration is usually performed before sampling. Therefore the
weight value which appears on the display is not real, but only indicative of the
fact that something is present on the scale.
Proceed as follows:
unload the scale and press READY; after 30 seconds, necessary to stabilise
the scale, the display shows the arrangement of the digital cells inside the
plant. Each digital cell is represented by a rectangle and an identification
number. The empty rectangles indicate cell stability.
If not addressed, the cells will be presented arranged in sequence and
without identification number. This display remains as long as necessary to
acquire the minimum dead load of all the cells, then it returns to the normal
weight display.
Load the sample weight on cell 1 when the display reads Load cell 1.
press READY to acquire the sample weight value. The arrangement of the
cells inside the plant is displayed once again.
This display remains as long as necessary to acquire the weight of all the
cells, when cell 1 is loaded with the sample weight
repeat the same procedure for all the cells of the plant, following the
indications supplied by the terminal
Once the angle calibration for all the cells has been performed, the calculated
angular coefficient value is displayed next to the identification number of each
individual cell.
The angular coefficient can assume the values within the range 0.995 ÷ 1.005.
Press SAVE to record the angular coefficients on the terminal and on the
cells.
If even one of the angular coefficients has a value outside of the range specified
above, the text will appear on the screen next to the incorrect angular coefficient
value and the terminal will indicate
Out of tolerance! Continue?
Pressing REPEAT allows you to repeat the calculation of the angular
coefficients.
Calibration per
side (1, 3,…, 4,
2)
You follow the same indications as for progressive calibration. The only
difference is in the order in which the cells must be loaded with the sample
weight.

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INSTALLATION MANUAL DD700
Replacing 1 cell
It might be necessary to replace one cell inside the plant. In this case, the
angular coefficient for the replaced cell can be calculated without calibrating all
the other cells.
Proceed as follows:
Unload the scale and press READY.
The display views the cells arranged in sequence and without identification
number. This display remains as long as necessary to acquire the minimum
dead load.
Load the sample weight on the replaced cell when the terminal requests it
and press READY to acquire its value.
load the sample weight on the cell diametrically opposite the cell to be
replaced when the terminal requests it and press READY.
The terminal calculates the angular coefficient for the replaced cell
Press SAVE to record the angular coefficient on the terminal and on the cell
If the value of the angular coefficient is outside of the admitted tolerance, the
terminal will indicate it.
Press REPEAT to repeat the calculation.
Switch the terminal off
1.4.1 Setup Menu/Digital Scale/Test
Angular
coefficient
Next to the identification number of each individual cell, the following are
indicated:
the correction made on the cell by means of the angular calibration of the
recorded cell.
the same correction recorded on the terminal.
The angular coefficient values of the cells recorded on the terminal can be
modified.
Proceed as follows.
press EDIT.
enter the cell No. to be changed as explained in the chapter Use of the
terminal in the user manual and press the key to confirm
enter the numerical value of the modified coefficient as explained in the
chapter Use of the terminal in the user manual and press the key
to confirm
the arrow allows you to copy the angular coefficient values of the cells
recorded on the terminal on the angular coefficient values recorded on the
cells