H&B SENSOR SOEMER DAS 72.1 MKIII Скачать руководство пользователя страница 25 | Manualshive

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H&B SENSOR SOEMER DAS 72.1 MKIII Скачать руководство пользователя страница 25

CALIBRATION PROCEDURE USING KNOWN LOAD CELL MV/V SENSITIVITY

DAS72.1MKIII

MULTIPLE ACTIVE LOAD CELLS

It is assumed that the load cell system is connected to the DAS72.1 and the power
is on. The maximum and minimum display values, display increment size and
decimal point position should be defined prior to carrying out the calibration (See
Menu 3). For this example the display maximum is define as 2009, the display
minimum is -200, the display step size is 1 and there is no decimal point.

Remember that all parameters under sections 1.1 - 1.3, 2.1 - 2.3 and 3.1 - 3.3 can
only be accessed or changed after the Recessed Enable Switch has been pressed.

a) Go to Menu 1.2. Press the 0 [Enter] key. The display will read the input signal in

mV/V. Make sure that the weighing system is empty or at the point where you
want the display to read zero. Press the 0 [Enter] key. This defines the actual
zero calibration point.

b) Go to Menu 2.1 and using the UP/DOWN and RIGHT keys set the display to

read the capacity of the load cell system or the weight value at which the
sensitivity is known. For this example the load cell capacity is 3 x 1000Kg =
3000Kg @ 2mV/V. Set the display to read 3000. Press the 0 [Enter] key. This
defines the theoretical calibration weight (equivalent to 2mV/V in this example).

Example:

3 leg tank or silo fitted with 3 off 1000Kg 2mV/V load cells
Dead load 500Kg, Live range 2000Kg in 1 Kg steps

c) Go to Menu 2.3.

set the display to read the mV/V sensitivity of the load cell

system you are using. For this example the load cell sensitivity or Output at Rated Load is 2.000mV/V. In multiple load cell installations (load
cells wired in parallel) the sensitivity is the average of all the load cells connected. Press the 0 [Enter] key. This defines the theoretical span
calibration point.

d) If required the zero can be re-calibrated without affecting the span. To do this make sure that the weighing system is empty or at the point

where you want the display to read zero. Goto Menu 1.2. Press the 0 [Enter] key. The display shows the actual input signal in mV/V. Press the
0 [Enter] key. Press the right arrow key twice and the DAS will be back in weighting mode.

Calibration is now complete

Press the 0 [Enter] key. Use the UP/DOWN and RIGHT keys

Page 25

DAS72.1MKIII Manual v 4.xx

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Содержание SENSOR SOEMER DAS 72.1 MKIII

Страница 1: ...45 4816 0880 Fax 45 4816 0870 www haubac com Tel 49 0 2721 9262 0 Fax 49 0 2721 9262 50 www soemer de Ideen Me technik Tel 44 0 1446 771185 Fax 44 0 1446 771186 www sensortechniques com TECHNIQUES LI...

Страница 2: ...Logic I O Status Page 14 4 Filter Setting and No Motion Page 16 Filter Setting Tables Update Rates Number of Readings Averaged Page 17 5 Analogue Output 4 20mA Settings Page 18 6 Logic Inputs 1 2 3 Pa...

Страница 3: ...out SET UP 1 Zero 1 0 allow 0 2 Calibrate 3 Set mV V 2 Span 1 Set cal n 2 Calibrate 3 Set mV V 4 Disp mV V 3 Display 1 o u limits n 2 Step n 3 Dec point 4 Logic stats 4 Filter 1 fcut Hz 2 Algorithm 3...

Страница 4: ...he display maximum value If the displayed weight exceeds this maximum the display will then show over range dashes at the top of the display This can be useful to indicate when a weight value is outsi...

Страница 5: ...1 kg steps with no decimal places then enter 3000 here 0 T 1 Calibrate the Span CALIBRATE THE SPAN CONVENTIONAL WEIGHING SYSTEM Use this menu point to calibrate the span using weights Apply the span...

Страница 6: ...int to define the display maximum value If the displayed weight exceeds this maximum the display will then show over range dashes at the top of the display This can be useful to indicate when a weight...

Страница 7: ...load cell stating amongst other things the Output at Rated Load ORL in mV V In single load cell applications the weighing system mV V value will be the load cell ORL value In applications using more...

Страница 8: ...Page 8 This page is intentionally left blank DAS72 1MKIII Manual v 4 xx...

Страница 9: ...value is less than the value set in Menu 1 4 5 factory default 2000 counts If you try to set a new zero which is greater than the value set in menu 1 4 5 you will see the error message Err 2 on the d...

Страница 10: ...1 T T T 2 0 T 1 0 T 1 T T T 2 ENABLE STORING OF TARE VALUE NON VOLATILE Use this menu point to enable t on the storing of the tare value in memory This will prevent the loss of the tare value in the e...

Страница 11: ...r key The default value is set to 2000 counts If the zero value you are trying to set is outside the range you will get the Err 2 message on the display Use the UP DOWN MOVE 0 T 1 0 T 1 T T T 2 ENABLE...

Страница 12: ...ll capacity here Use the UP DOWN MOVE RIGHT keys to enter the total load cell capacity For example if you have a weighing system consisting of 3 off 2000 kg load cells and you want to display in 1 kg...

Страница 13: ...ations the weighing system mV V value will be the load cell ORL value In applications using more than one load cell the weighing system mV V value will be the average of the individual load cells ORLs...

Страница 14: ...xample you select a display step size of 50 the display will show 000 050 100 150 etc as the weight value increases Using higher step sizes will give a more stable weight display but with a lower reso...

Страница 15: ...emporarily disabled whilst the logic input output status is shown momentarily The display then reverts back to displaying the weight value This can be useful when commissioning the system as you can s...

Страница 16: ...T 1 T T T 2 SELECT THE LOW PASS FILTER CUT OFF FREQUENCY RANGE 0 8 Use the UP DOWN keys to select the cut off frequency required A setting of 0 will disable the filter in both FIR IIR modes A setting...

Страница 17: ...in Stopband 90 90 90 90 90 90 90 90 Stopband in Hz 80 40 26 20 16 13 11 10 Update Rate in Samples sec 600 300 200 150 120 100 85 7 75 MENU 4 1 4 2 FILTER TYPE FIR MODE 1 COMBINATION LOW PASS Update Ra...

Страница 18: ...e selected the DAS will send its minimum value 0mA until a value within its normal range is selected Similarly if values above 21mA are selected then the DAS will send its maximum value 21mA until a v...

Страница 19: ...he status of Logic Input 1 If the input is high the display reads In1 1 If the input is low the display reads In1 0 In order for the status of this logic input to be read correctly you must set the fu...

Страница 20: ...ads In3 0 In order for the status of this logic input to be read correctly you must set the function as defined in section 6 3 1 to 0 No function T T T 2 0 T 1 T T T 2 T T T 2 NOT IN USE 3 4 3 4 3 4 3...

Страница 21: ...to define the parameter based on which Logic Output 1 will operate groS operates when the Gross value reaches or exceeds the setpoint nEt operates when the net value reaches or exceeds the setpoint P...

Страница 22: ...tinuously transmitted SAP the ADC value is continuously transmitted AUEr the average value is continuously transmitted PEA the peak value is constantly transmitted HOLd the hold value is continuously...

Страница 23: ...nabled See menu 1 1 DAS72 1MKIII ERROR CODES If you need to return the DAS72 1 to the factory settings simply press and hold the recessed enable switch whilst powering up the unit All parameters will...

Страница 24: ...ay to read the value of the calibration weight s which will be applied For this example if the calibration load applied which will be applied is 2000 kg set the display to read 2000 Press the 0 Enter...

Страница 25: ...value at which the sensitivity is known For this example the load cell capacity is 3 x 1000Kg 3000Kg 2mV V Set the display to read 3000 Press the 0 Enter key This defines the theoretical calibration w...

Страница 26: ...f the tank Therefore when there is 4000Kg in Example A rectangular tank fitted with 1 off 2000Kg 2mV V load cell central on the left hand side and a pivot hinge along the complete opposite face Dead l...

Страница 27: ...external up to 600 measurements per second FIR Filter 2 5 19 7 Hz or IIR Filter 0 25 18 Hz each programmable in 8 steps Software calibration and set up RS485 or RS422 full duplex 9600 115200 Baud up...

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