MODEL DAS 72.1 MKIII MANUAL

Transcription

1 MODEL DAS 7. MKIII MANUAL DIGIAL LOAD CELL AMPLIFIER WIH ANALOGUE OUPU AND SEPOINS his Manual refers to software version. Ideas in Measuring.. Ideen & Meßtechnik ECHNIQUES LIMIED el : + () Fax: + () H&B ApS el : +9 ()7/96- Fax: +9 ()7/ el : Fax: DAS7.MKIII Manual v.xx Page

2 CONENS DAS7.MKIII Wiring Diagram and Key Functions Page Quick Setup and Calibration using Weights Quick Setup and Calibration using the load cell mv/v Sensitivities Page Page 6. Enable Zero Button / Calibrate Zero point. Setup and calibrate the Span Function / Display Input Signal in mv/v. Setup the Display (Over/Under Range Limits, steps size & decimal point, Logic I/O Status). Filter Setting and No Motion Filter Setting ables & Update Rates (Number of Readings Averaged) 5. Analogue Output (-ma) Settings 6. Logic Inputs, & 7. Logic Outputs, & Page 9 Page Page Page 6 Page 7 Page 8 Page 9 Page 8. Data Communication Settings Page Error Codes / Return to Factory Settings Page Examples: Calibration Procedure using weights Calibration Procedure from known load cell mv/v sensitivities - Multiple active load cells Single active load cell plus pivot echnical Specification Page Page 5 Page 6 Page 7 DAS7.MKIII Manual v.xx Page

3 DAS7.MKIII Recessed Enable Switch Centre of Zero LED (±.5d) Zero Key - Sets new zero (if enabled). Reverts to calibrated zero if the button is held down for more than seconds. Minus Sign (> Digits ONLY) Switches unit back to Gross mode if a tare has been set. Acts as the Enter key in the Set-up Mode. Unit in Net Mode LED are Key - Puts unit into Net mode. When inside Set-up Menu this key moves the menu back one step. Also moves Digit Selected to the right when inside sub menus. Digital Amplifier + Setpoint DAS 7. Mark III Up Key Press either Key for more (Enables changes to be made to important parameters. Must be pressed AFER entering Set up mode but before attempting to change parameters. to.,. to. and. to.) Logic input depress to change Net Logic output.zero./allow><.calibrate.set mv/v.span.set cal n.calibrate.set mv/v.disp.mv/v Load cell 5Vdc < 8mA.Filter.fcut Hz.Algorithm.Update rate.motion n RS/85 com than seconds to enter the Set up Mode com RS/85 Comms. See Programmers Manual for details *Please note that if you have a wire cable from your junction box or load cell to the DAS7., you MUS put in additional links between the Exc+ and Sen+ terminals and between the Excand Sen- terminals. Otherwise the display will show Err 5 (faulty load cell connection) Down Key 5.CLout 6.Input // 7.Outp. // 8.Datacom..mA= n.assign Key.SPoint n.baud rate.ma= n..hyst. ± n./85.base..base.address.est I ma.est.est.auto trnsm. Isolated Isolated Isolated Logic Outputs Logic Inputs Power -5Vdc Ground Logic Output LOAD Logic Output LOAD Logic Output LOAD Logic Outputs (Com) Logic Input (+) Logic Input (+) Logic Input (+) Logic Inputs (V) + Receive + Receive ransmit + ransmit - - EXCIAION +SIGNAL - SENSE SIGNAL + SENSE SHIELD Set-up menu structure + EXCIAION + + Gnd SE UP Exc Sen Inp Inp Sen Exc -ma Rx Rx x x Io.Display.o/u limits n.step* n.dec.point.logic stats CL out -5 VDC Logic Inputs ( -V DC). Must be held momentarily high relative to COM (V) to operate. See Menu Section 6 to program function (remote tare, zero etc) Logic Outputs (< 5V AC/DC A Maximum). See Menu Section 7 for functions -ma Output Load cell connections* DAS7.MKIII Manual v.xx Page

4 QUICK SE UP AND CALIBRAION USING WEIGHS DAS7.MKIII (Also see calibration examples on page ) Enter the Setup menu Set the Decimal Point position Set the Display Upper Limit Set the Display Lower Limit SE UP Press the UP or DOWN key for more than seconds to enter the Set-up Menu Please note that if you wish to change any values in these sections, you have to first press the recessed enable switch (top left corner of unit) SELEC HE DECIMAL POIN POSIION ON HE DISPLAY (,.,.,. or.) Use the UP or DOWN key to set the required decimal point position on the display. he factory default is no decimal place []. he maximum number of places after the decimal point is four [.]. Please note that setting a decimal place after defining the span calibration value the will NO increase the displayed resolution, it simply lights an LED on the display in the appropriate position. For example if the span calibration value is set to (no decimal point) and you then set one decimal place this will mean a calibration value of.. If you need the calibration value to be. you will have to increase the span calibration value in menu. from to SE HE DISPLAY OVER RANGE LIMI. (MAXIMUM VALUE +99,999) Use this menu point 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). his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the maximum display value and store by pressing the enter key. Factory default value,. SE HE DISPLAY UNDER RANGE LIMI. (MINIMUM VALUE -99,999). Use this menu point to define the display minimum value. If the displayed weight drops below this minimum, the display will then show under range (dashes at the bottom of the display) his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the minimum display value and store by pressing the enter key. Factory default value -9,999. QUICK SE UP AND CALIBRAION USING WEIGHS (Continues on the next page) DAS7.MKIII Manual v.xx Page

5 QUICK SE UP AND CALIBRAION USING WEIGHS (Continued) Set the Display Step Size Calibrate the Zero point Define the Span Calibration weight Calibrate the Span SELEC HE DISPLAY SEP SIZE. (,, 5,,, 5,, or 5) Use this menu point to select the display step size. he minimum display step size is [Factory default] up to a maximum step size of 5. If for example you select a display step size of 5, the display will show, 5,, 5 etc as the weight value increases. Using higher step sizes will give a more stable weight display but with a lower resolution. Use the UP or DOWN key to select the required display step size. Press the enter key to store. CALIBRAE OR ADJUS HE ZERO POIN (CONVENIONAL WEIGHING SYSEM) Use this menu point to store a new calibration zero. he display will show the actual input signal in mv/v. Ensure that the weighing system is at zero or has no load on it. Pressing the Enter key will store the new zero. DEFINE HE SPAN CALIBRAION WEIGH his menu point defines the span calibration value. If you intend to calibrate the span conventionally using weights, you need to enter the value of the span test weight you intend to apply here. Use the UP/DOWN & MOVE RIGH keys to enter the span test weight. For example if you intend to calibrate with kg of weight (stepping in kg steps with no decimal places) then enter here. CALIBRAE HE SPAN (CONVENIONAL WEIGHING SYSEM) Use this menu point to calibrate the span using weights. Apply the span test weight [the test weight value is defined in menu.] to the weighing system. he display will show the actual signal from the weighing system in mv/v. Press the Enter key to store the new span value. DAS7.MKIII Manual v.xx Page 5

6 QUICK SE UP AND CALIBRAION USING HE LOAD CELL mv/v SENSIIVIY DAS7.MKIII (Also see calibration examples on page ) Enter the Setup menu Set the Decimal Point position Set the Display Upper Limit Set the Display Lower Limit SE UP Press the UP or DOWN key for more than seconds to enter the Set-up Menu Please note that if you wish to change any values in these sections, you have to first press the recessed enable switch (top left corner of unit) SELEC HE DECIMAL POIN POSIION ON HE DISPLAY (,.,.,. or.) Use the UP or DOWN key to set the required decimal point position on the display. he factory default is no decimal place []. he maximum number of places after the decimal point is four [.]. Please note that setting a decimal place after defining the span calibration value the will NO increase the displayed resolution, it simply lights an LED on the display in the appropriate position. For example if the span calibration value is set to (no decimal point) and you then set one decimal place this will mean a calibration value of.. If you need the calibration value to be. you will have to increase the span calibration value in menu. from to SE HE DISPLAY OVER RANGE LIMI. (MAXIMUM VALUE +99,999) Use this menu point 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). his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the maximum display value and store by pressing the enter key. Factory default value,. SE HE DISPLAY UNDER RANGE LIMI. (MINIMUM VALUE -99,999). Use this menu point to define the display minimum value. If the displayed weight drops below this minimum, the display will then show under range (dashes at the bottom of the display) his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the minimum display value and store by pressing the enter key. Factory default value -9,999. QUICK SE UP AND CALIBRAION USING LOAD CELL mv/v (Continues on the next page) DAS7.MKIII Manual v.xx Page 6

7 QUICK SE UP AND CALIBRAION USING LOAD CELL mv/v (Continued) Set the Display Step Size Calibrate the Zero point Enter the weighing system capacity Enter the weighing system mv/v value SELEC HE DISPLAY SEP SIZE. (,, 5,,, 5,, or 5) Use this menu point to select the display step size. he minimum display step size is [Factory default] up to a maximum step size of 5. If for example you select a display step size of 5, the display will show, 5,, 5 etc as the weight value increases. Using higher step sizes will give a more stable weight display but with a lower resolution. Use the UP or DOWN key to select the required display step size. Press the enter key to store. CALIBRAE OR ADJUS HE ZERO POIN.(CONVENIONAL WEIGHING SYSEM) Use this menu point to store a new calibration zero. he display will show the actual input signal in mv/v. Ensure that the weighing system is at zero or has no load on it. Pressing the Enter key will store the new zero. DEFINE HE SPAN CALIBRAION VALUE. his menu point defines the span calibration value. If you intend to calibrate the span using the mv/v readings from the load cell certificates, you should enter the total load cell capacity here. So for example if you have a weighing system consisting of off kg load cells you should enter 6 ( x ) here. Use the UP/DOWN & MOVE RIGH keys to enter the total load cell capacity. CALIBRAE HE SPAN FROM HE LOAD CELL mv/v READING If you are calibrating the weighing system without weights, use this menu point to enter the mv/v value for the weighing system. he weighing system mv/v value can be derived from the load cell test data. Normally a test data certificate is provided with each 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 than one load cell, the weighing system mv/v value will be the average of the individual load cells ORLs. Normally load cells used in multi-cell applications have matched or rationalized ORLs typically or mv/v for example. So if you have load cells in your system, each kg capacity with ORLs of mv/v then the weighing system capacity will be kg at mv/v. Use the UP/DOWN & MOVE RIGH keys to enter the weighing system ORL reading in mv/v. he reading should be in the format x.xxxx e.g. if the ORL is mv/v exactly. he corresponding weighing system capacity should be entered in menu point. DAS7.MKIII Manual v.xx Page 7

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9 ENERING HE SEUP MENU DAS7.MKIII SE UP Press the UP or DOWN key for more than seconds to enter the Set-up Menu If you wish to change any values in these sections, you have to first press the recessed enable switch (top left corner of unit) ENABLE ZERO BUON / SE ZERO RACK RANGE / CALIBRAE ZERO POIN ZERO BUON ENABLE / ZERO RACK RANGE (± 55 d). Use this menu point to enable or disable the zero button and to set the zero track range. If this parameter is set to then the zero button and the zero tracking will be disabled. If you try to set a new zero when the zero button is disabled, the message Err will be displayed. If this parameter is set between and 55, the zero button will be enabled and the zero track range will be equal to the number set. Use the UP/DOWN & MOVE RIGH keys to set the zero track range and store by pressing the enter key. Factory default value. In the normal weighing mode, the zero button (if enabled) will set a new zero providing that the displayed weight value is less than the value set in Menu..5.[ factory default ± counts]. If you try to set a new zero which is greater than the value set in menu..5. you will see the error message Err on the display. If this parameter is set between and 55 (not ) then the zero tracking will also be enabled. he value set will be equivalent to the zero track range (plus and minus around zero). he zero tracking will work on the no load or zero value of the weighing system to bring it back to exactly. If for instance the no load value or zero of the weighing system comes back to 5d when unloaded (due to product build up in the weigh hopper for instance), the zero tracking will automatically reduce this zero offset back to zero providing that the zero is stable (no motion) and is inside the zero track range. he no load output will be reduced at a fixed rate of. d/second until the value reaches. he value of d is equal to the display step size. ENABLE ZERO BUON / CALIBRAE ZERO POIN (Continues on next page) DAS7.MKIII Manual v.xx Page 9

10 ENABLE ZERO BUON / CALIBRAE ZERO POIN (Continued) CALIBRAE OR ADJUS HE ZERO POIN. (CONVENIONAL WEIGHING SYSEM) Use this menu point to store a new calibration zero. he display will show the actual input signal in mv/v from the load cells. Ensure that the weighing system is at zero or has no load on it. Pressing the Enter key will store the new zero. CALIBRAE HE ZERO POIN FROM HE LOAD CELL mv/v READING Use this menu point to enter a mv/v value at which you want the weighing system to read zero. Use the UP/DOWN & MOVE RIGH keys to set the mv/v reading. Pressing the Enter key will store this value. he weighing system will now read zero at this mv/v reading. ENABLE SORING OF ARE VALUE (NON-VOLAILE) Use this menu point to enable (t - on) the storing of the tare value in memory. his will prevent the loss of the tare value in the event of a power failure. here are possible settings t - off (factory default) tare storing not enabled or t - on tare storing enabled. Use the UP or Down keys to change between the settings. ENABLE EX MODE (WIDER OLERANCE BAND ON SENSE INPU) Use this menu point to enable (E - on) a wider tolerance on the sense input. his will allow the DAS7. to be used with electrical safety barriers (hazardous area applications) which reduce the sense voltage. If the sense voltage is too low Err 5 (load cell fault) will be displayed. here are possible settings E - off (factory default) standard sense input tolerance or E - on wider sense input tolerance enabled. Use the UP or Down keys to change between the settings. ENABLE ZERO BUON / CALIBRAE ZERO POIN (Continued on next page) DAS7.MKIII Manual v.xx Page

11 ENABLE ZERO BUON / CALIBRAE ZERO POIN (Continued) ENABLE SORING OF ZERO VALUE (NON-VOLAILE) Use this menu point to enable ( - on) the storing of the zero value in memory. his will prevent the loss of the zero value in the event of a power failure. here are possible settings - off (factory default) zero storing not enabled or - on zero storing enabled. Use the UP or Down keys to change between the settings. NO YE IMPLEMENED. ADJUS ZERO RANGE Use this menu point to adjust the allowable zero range. Use the UP/DOWN & MOVE RIGH keys to set the zero range and store by pressing the enter key. he default value is set to ± counts. If the zero value you are trying to set is outside the range you will get the Err message on the display. SE UP AND CALIBRAE SPAN FUNCION / DISPLAY INPU SIGNAL IN mv/v - See Next Page DAS7.MKIII Manual v.xx Page

12 If you wish to change any values in these sections, you have to first press the recessed enable switch (top left corner of unit) DAS7.MKIII SE UP AND CALIBRAE SPAN / DISPLAY INPU SIGNAL IN mv/v If you intend to calibrate the span using the mv/v readings from the load cell certificates, you should enter the total load cell capacity here. Use the UP/DOWN & MOVE RIGH keys to enter the total load cell capacity. For example if you have a weighing system consisting of off kg load cells and you want to display in kg steps with no decimal places, you should enter 6 ( x ) here. If however you want to display 6 kg in. kg steps you should enter 6 here. he decimal point can be added later in menu.. DEFINE HE SPAN CALIBRAION VALUE. his menu point defines the span calibration value. If you intend to calibrate the span conventionally using weights, you need to enter the value of the span test weight you intend to apply here. Use the UP/DOWN & MOVE RIGH keys to enter the span test weight. For example if you intend to calibrate with kg of weight (stepping in kg steps with no decimal places) then enter here. If however, you intend to calibrate with kg and you want to step in. kg steps you must enter here. he decimal point can be added later in menu.. CALIBRAE HE SPAN. (CONVENIONAL WEIGHING SYSEM) Use this menu point to calibrate the span using weights. Apply the span test weight [the test weight value is defined in menu.] to the weighing system. he display will show the actual signal from the weighing system in mv/v. Press the Enter key to store the new span value. SE UP AND CALIBRAE SPAN /DISPLAY INPU SIGNAL IN mv/v (Continues on next page) DAS7.MKIII Manual v.xx Page

13 SE UP AND CALIBRAE SPAN /DISPLAY INPU SIGNAL IN mv/v (Continued) CALIBRAE HE SPAN FROM HE LOAD CELL mv/v READING If you are calibrating the weighing system without weights, use this menu point to enter the mv/v value for the weighing system. he weighing system mv/v value can be derived from the load cell test data. Normally a test data certificate is provided with each 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 than one load cell, the weighing system mv/v value will be the average of the individual load cells ORLs. Normally load cells used in multi-cell applications have matched or rationalized ORLs typically or mv/v for example. So if you have load cells in your system, each kg capacity with ORLs of mv/v then the weighing system capacity will be kg at mv/v. Use the UP/DOWN & MOVE RIGH keys to enter the weighing system ORL reading in mv/v. he reading should be in the format x.xxxx e.g. if the ORL is mv/v exactly. he corresponding weighing system capacity should be entered in menu point. DISPLAY HE INPU SIGNAL IN mv/v Use this function to view the raw signal coming from the load cells into the DAS7.. he display shows the load cell signal directly in mv/v. his can be useful when either commissioning or fault finding. SE UP HE DISPLAY - See Next Page DAS7.MKIII Manual v.xx Page

14 If you wish to change any values in these sections, you have to first press the recessed enable switch (top left corner of unit) DAS7.MKIII SE UP HE DISPLAY (OVER/UNDER RANGE LIMIS, SEP SIZE & DECIMAL POIN, LOGIC I/O SAUS) SE HE DISPLAY OVER RANGE LIMI. (MAXIMUM VALUE +99,999) Use this menu point 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). his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the maximum display value and store by pressing the enter key. Factory default value,. SE HE DISPLAY UNDER RANGE LIMI. (MINIMUM VALUE -99,999). Use this menu point to define the display minimum value. If the displayed weight drops below this minimum, the display will then show under range (dashes at the bottom of the display) his can be useful to indicate when a weight value is outside a normal range. Use the UP/DOWN & MOVE RIGH keys to set the minimum display value and store by pressing the enter key. Factory default value -9,999. SELEC HE DISPLAY SEP SIZE. (,, 5,,, 5,, or 5) Use this menu point to select the display step size. he minimum display step size is [Factory default] up to a maximum step size of 5. If for example you select a display step size of 5, the display will show, 5,, 5 etc as the weight value increases. Using higher step sizes will give a more stable weight display but with a lower resolution. Use the UP or DOWN key to select the required display step size. Press the enter key to store. SE UP HE DISPLAY (Continues on next page) DAS7.MKIII Manual v.xx Page

15 SE UP HE DISPLAY (Continued) SELEC HE DECIMAL POIN POSIION ON HE DISPLAY (,.,.,. or.) Use the UP or DOWN key to set the required decimal point position on the display. he factory default is no decimal place []. he maximum number of places after the decimal point is four [.]. Please note that setting a decimal place after defining the span calibration value the will NO increase the displayed resolution, it simply lights an LED on the display in the appropriate position. For example if the span calibration value is set to (no decimal point) and you then set one decimal place this will mean a calibration value of.. If you need the calibration value to be. you will have to increase the span calibration value in menu. from to LOGIC INPUS & OUPUS SAUS (NO INDICAION) When this parameter is selected there will be no indications on the main display of the status of the logic inputs and outputs. he weight value is shown continuously irrespective of the logic inputs and outputs status [Factory Default] LOGIC INPUS & OUPU SAUS (ONLY SHOW WHEN I/O SAE CHANGES) When this parameter is selected, there will be a momentary indication on the main display of the logic input/output status ONLY when the status changes. he weight value display is temporarily disabled whilst the logic input/output status is shown momentarily. he display then reverts back to displaying the weight value. his can be useful when commissioning the system as you can see the exact status of the inputs and outputs as and when they change. LOGIC INPUS & OUPU SAUS (SHOW CONINUOUSLY) When this parameter is selected the status of the inputs and outputs are continuously displayed on the main weight display. No weight values are displayed in this mode. his can be useful when commissioning the system as you can see the exact status of the inputs and outputs continuously. FILER SEINGS & NO MOION - See Next Page DAS7.MKIII Manual v.xx Page 5

16 DAS7.MKIII FILER SEINGS & NO MOION SELEC HE LOW PASS FILER CU OFF FREQUENCY. (RANGE - 8) Use the UP/DOWN keys to select the cut off frequency required. A setting of will disable the filter in both FIR & IIR modes. A setting of provides the least filtering and a setting of 8 provides the most. Default setting. See Filter Level (FL) versus Cut off Frequency tables on the next page. SELEC HE YPE OF LOW PASS FILER REQUIRED. (YPE Fir [Mode ] or IIr [Mode ]) Use the UP/DOWN keys to select the type of filter used. ype IIR should be used where heavy damping is required. ype FIR should be used where high speed is required. Default setting IIR. See Filter Level (FL) versus Cut off Frequency tables on the next page. SELEC HE NUMBER OF FILERED READINGS AVERAGED (RANGE - 7) Use the UP or DOWN key to select the number of readings from the IIR or FIR filter that will be averaged. Default setting (off). See Update Rates versus Number of Samples table on the next page. SE HE NO MOION RANGE. (RANGE ) Use the UP/DOWN & MOVE RIGH keys to set the no motion range. Fluctuations in weight values inside this range will be considered as stable. Default value SE HE SABILISAION IME. (RANGE ) Use the UP/DOWN & MOVE RIGH keys to set the time in milliseconds within which the weight value displayed has to remain within the no motion range, for the weigh to be considered stable. Default value ANALOGUE OUPU SEINGS - See Page 6 DAS7.MKIII Manual v.xx Page 6

17 FILER SEINGS ABLES & UPDAE RAES (NUMBER OF READINGS AVERAGED) MENU.-. FILER YPE IIR (MODE ) SECOND ORDER GAUSSIAN LOW Filter Setting db Cut-off Update Rate in Settling time to Damping in db Frequency in Hz Samples/sec..% in ms. At Hz his section refers to Menu points. -.. Setting the filter level to will disable the filters in either modes ( or ). he Gaussian filter type IIR (mode ) filter level is the factory default. his provides a slower response with a high level of damping. he FIR filter type provides better response where high speed is required. Both types of filter can be enhanced further by using the UR parameter Menu. to average between (UR=) and 8 (UR=7) measurements. MENU.-. FILER YPE FIR (MODE ) COMBINAION LOW PASS Filter Setting db Cut-off Update Rate in Settling time to db Damping db Damping Stopband in Hz Damping in db in Stopband Frequency in Hz Samples/sec..% in frequency frequency Hz >9 >9 >9 >9 >9 >9 >9 >9 >8 > >6 > >6 > > > MENU. UPDAE RAE - DEFINES HOW MANY MEASUREMENS ARE USED O CALCULAE AN AVERAGE Update Rates No. of Samples DAS7.MKIII Manual v.xx Page 7

18 DAS7.MKIII ANALOGUE OUPU (- ma) SEINGS SE HE WEIGH VALUE A WHICH ma IS SEN Use the UP/DOWN & MOVE RIGH keys to set the weight value at which ma is sent. his typically will be set to zero, so that when the display reads zero weight, ma will be sent down the analogue output. If you want the analogue output to run between ma and ma, you will need to calculate what the ma value will be and store it here. o do this take the difference between the weight value at ma and the weight value at ma and divide it by the and multiply by. For example if the analogue output is - ma for - kg then the ma value will be /* =. SE HE WEIGH VALUE A WHICH ma IS SEN. Use the UP/DOWN & MOVE RIGH keys to set the weight value at which ma is sent. ypically this will be set to the weight value at which you want ma to be sent down the analogue output. SE HE ANALOGUE OUPU BASE (gros, net [Default], PEA, AUEr, HoLd, PP, UALL, disp, off) Use the UP or DOWN key to set which parameter the analogue output will follow : gros - the analogue output follows the Gross value: net - the analogue output follows the Net value : PEA - the analogue output follows the Peak value: AUEr - the analogue output follows the Average value: HOLd - the analogue output follows the Hold value: PP - the analogue output follows the Peak to Peak value: UALL - the analogue output follows the Valley value: disp - the analogue output follows the value shown on the display: off the analogue output is switched off. ES MODE FOR HE CURREN OUPU (Range ma - ma) Use the UP or DOWN & MOVE RIGH key to set a current value in ma, which will be sent down the analogue output, independent of the load applied to the weighting system. If values below ma are selected the DAS will send its minimum value (ma) until a value within its normal range is selected. Similarly if values above ma are selected then the DAS will send its maximum value (ma) until a value within its normal range is selected. LOGIC INPUS - See Next Page DAS7.MKIII Manual v.xx Page 8

19 DAS7.MKIII LOGIC INPUS SE HE FUNCION OF LOGIC INPU. (RANGE - ) Use the UP/DOWN keys to set the function of logic input.. - No function.. - Remote Zero.. - Remote are.. - Up Arrow Key.. - Down Arrow Key..5 - rigger the average function..6 - Display average value..7 - Display peak value..8 - Clear peak, valley and hold values..9 - Display hold value.. - Display peak to peak value.. - Display valley value.. - Lock keyboard.. - rigger hold function.. - Set tare and reset/clear the peak/valley/hold values..5 - Blank Display. Please ensure that this logic input is NO high when setting or changing the function of this logic input. NO IN USE NO IN USE READ HE SAUS OF LOGIC INPU. (In or In ) Read the status of Logic Input. If the input is high the display reads In. If the input is low the display reads In. In order for the status of this logic input to be read correctly, you must set the function (as defined in section 6..) to [No function] SE HE FUNCION OF LOGIC INPU. (RANGE - ) Use the UP/DOWN keys to set the function of logic input.. - No function.. - Remote Zero.. - Remote are.. - Up Arrow Key.. - Down Arrow Key..5 - rigger the average function..6 - Display average value..7 - Display peak value..8 - Clear peak, valley and hold values..9 - Display hold value.. - Display peak to peak value.. - Display valley value.. - Lock keyboard.. - rigger hold function.. - Set tare and reset/clear the peak/valley/hold values..5 - Blank Display. Please ensure that this logic input is NO high when setting or changing the function of this logic input. LOGIC INPUS (Continues on next page) DAS7.MKIII Manual v.xx Page 9

20 LOGIC INPUS (Continued) NO IN USE NO IN USE READ HE SAUS OF LOGIC INPU. (In or In ) Read the status of Logic Input. If the input is high the display reads In. If the input is low the display reads In. In order for the status of this logic input to be read correctly, you must set the function (as defined in section 6..) to [No function] SE HE FUNCION OF LOGIC INPU. (RANGE - ) Use the UP/DOWN keys to set the function of logic input.. - No function.. - Remote Zero.. - Remote are.. - Up Arrow Key.. - Down Arrow Key..5 - rigger the average function..6 - Display average value..7 - Display peak value..8 - Clear peak, valley and hold values..9 - Display hold value.. - Display peak to peak value.. - Display valley value.. - Lock keyboard.. - rigger hold function.. - Set tare and reset/clear the peak/valley/hold values..5 - Blank Display. Please ensure that this logic input is NO high when setting or changing the function of this logic input. NO IN USE NO IN USE READ HE SAUS OF LOGIC INPU. (In or In ) Read the status of Logic Input. If the input is high the display reads In. If the input is low the display reads In. In order for the status of this logic input to be read correctly, you must set the function (as defined in section 6..) to [No function] LOGIC OUPUS - See Next Page DAS7.MKIII Manual v.xx Page

21 DAS7.MKIII LOGIC OUPUS SE WEIGH VALUE A WHICH LOGIC OUPU SWICHES Use the UP/DOWN and MOVE RIGH keys to set the weight value (SEPOIN) at which logic output changes state (switches on/off) SE WHEHER LOGIC OUPU SWICHES ON OR OFF Use the UP/DOWN keys to set whether logic output switches on or off at the set point. SE HE HYSERESIS VALUE ON HE SEPOIN FOR LOGIC OUPU Use the UP/DOWN and MOVE RIGH keys to set the hysteresis value on logic output setpoint. SE LOGIC OUPU BASE (gros, net, PEA, AUEr, HOLd, PP, UALL, Error, off) Use the UP or DOWN key to define the parameter, based on which Logic Output will operate : gros - operates when the Gross value reaches or exceeds the setpoint : net operates when the net value reaches or exceeds the setpoint. PEA - operates when the peak value reaches or exceeds the setpoint. AUEr - operates when the average value reaches or exceeds the setpoint. HOLd - operates when the Hold value reaches or exceeds the setpoint. PP - operates when the peak to peak value reaches or exceeds the setpoint. UALL - operates when the Valley value reaches or exceeds the setpoint. Error - operates when Err or Err 5 occurs. off - Logic Output is disabled. ES MODE FOR LOGIC OUPU ( - Off, - ON) Use the UP or DOWN key to switch on () or off () Logic Output. AS PER SECIONS 7. BU FOR LOGIC OUPU AS PER SECIONS 7. BU FOR LOGIC OUPU DAACOMS - See Next Page DAS7.MKIII Manual v.xx Page

22 DAS7.MKIII DAA COMMUNICAION SEINGS (See Programmers Manual for full Communication Protocol) SE HE BAUD RAE (96, 9, 8, 576, 5). [FACORY DEFAUL 96] Use the UP or DOWN key to set the required baud rate. SELEC EIHER RS OR RS85 INERFACE (, 85). [FACORY DEFAUL RS85] Use the UP or DOWN key to select either the RS or the RS85 interface. SE HE DEVICE ADDRESS (-55). [FACORY DEFAUL ] Use the UP/DOWN & MOVE RIGH key to set the device address (multi-drop) Set to for single point to point applications. SELEC AUO RANSMI MODE (gros, net, ALL, SAP, AUEr, PEA, HOLd, UALL, PP, off). Use the UP or DOWN key to select the auto transmit mode.: gros - the gross value is continuously transmitted.: net - the net value is continuously transmitted.: ALL - the gross, net and status values are continuously 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 transmitted.: UALL - the valley value is constantly transmitted.: PP - the peak to peak value is constantly transmitted.: off - [FACORY DEFAUL] the auto transmit is switched off. SE RANSMI DELAY (-55 ms). [FACORY DEFAUL ] Use the UP/DOWN & MOVE RIGH key to set the ransmit Delay in milliseconds. his sets a delay time after which the DAS 7. responds to a command. his is particularly handy in some PLC based systems where the DAS7. response is too quick. SE UP AND CALIBRAE ZERO FUNCION DAS7.MKIII Manual v.xx Page

23 ERROR CODES DAS7.MKIII he zero key is not enabled (See menu.) Set final zero out of range. (You are trying to set a zero which is greater than ±% of the Upper Display Limit menu.o) Excessive sensitivity requested. (he input signal is being divided into too many divisions i.e the size of each division is less than.5uv) he input signal is in excess of ±. mv/v Faulty load cell connection (Open circuit / Short Circuit / Wire disconnected / Sense wires not connected or shorted to Exc terminals) You are trying to enter a value which is not valid (Outside the acceptable parameter range) Display overload (Display value exceeds the upper limit set in Menu.o) Display underload (Display value is more negative than the lower limit set in Menu.U) If when trying to set a new zero or tare, you see a series of dashes through the middle of the display, this indicates that the weight value is changing too much over a short period of time. In other words the No motion parameters as set in Menu. have been exceeded. o correct this you can increase the no-motion range (Menu..) or decrease the Stabilisation time (Menu..). You can also increase the filter strength (Menu.) to make the weight readings more stable. Please note that instability may be indicative of another problem which should be resolved as opposed to masked by adjusting the no-motion or filter parameters. If you need to return the DAS7. to the factory settings simply press and hold the recessed enable switch whilst powering up the unit. All parameters will then revert to the factory settings DAS7.MKIII Manual v.xx Page

24 CALIBRAION PROCEDURE USING WEIGHS Example: leg tank or silo fitted with off Kg mv/v load cells Dead load 5Kg, Live range Kg in Kg steps DAS7.MKIII It is assumed that the load cell system is connected to the DAS7. and the power is on. he maximum and minimum display values, display increment size and decimal point position should be defined prior to carrying out the calibration (See Menu ). For this example the display maximum is define as 9, the display minimum is -, the display step size is and there is no decimal point. Remember that all parameters under sections. -.,. -. and. -. can only be accessed or changed after the Recessed Enable Switch has been pressed. a) Go to Menu. and using the UP/DOWN and RIGH keys set the display to read.make sure that the weighing system is empty or at the point where you want the display to read zero. Press the [Enter] key. his defines the actual zero calibration point. b) Go to Menu. and using the UP/DOWN and RIGH keys set the display 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 kg, set the display to read. Press the [Enter] key. his defines the calibration weight. c) Go to Menu.. Apply the calibration weight(s) to the weighing system. Press the [Enter] key. he display will show the actual input signal in mv/v. Press the [Enter] key. his defines the actual span calibration point. he display will now show.. Press the right arrow key twice and the DAS will be back in weighing mode. d) If required the zero can be re-calibrated without affecting the span. o do this make sure that the weighing system is empty or at the point where you want the display to read zero. Goto Menu.. Press the [Enter] key. he display shows the actual input signal in mv/v. Press the [Enter] key. Press the right arrow key twice and the DAS will be back in weighting mode. Calibration is now complete DAS7.MKIII Manual v.xx Page

25 CALIBRAION PROCEDURE USING KNOWN LOAD CELL MV/V SENSIIVIY DAS7.MKIII MULIPLE ACIVE LOAD CELLS Example: leg tank or silo fitted with off Kg mv/v load cells Dead load 5Kg, Live range Kg in Kg steps It is assumed that the load cell system is connected to the DAS7. and the power is on. he maximum and minimum display values, display increment size and decimal point position should be defined prior to carrying out the calibration (See Menu ). For this example the display maximum is define as 9, the display minimum is -, the display step size is and there is no decimal point. Remember that all parameters under sections. -.,. -. and. -. can only be accessed or changed after the Recessed Enable Switch has been pressed. a) Go to Menu.. Press the [Enter] key. he 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 [Enter] key. his defines the actual zero calibration point. b) Go to Menu. and using the UP/DOWN and RIGH 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 x Kg = mv/v. Set the display to read. Press the [Enter] key. his defines the theoretical calibration weight (equivalent to mv/v in this example). c) Go to Menu.. Press the [Enter] key. Use the UP/DOWN and RIGH keys 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.mv/v. In multiple load cell installations (load cells wired in parallel) the sensitivity is the average of all the load cells connected. Press the [Enter] key. his defines the theoretical span calibration point. d) If required the zero can be re-calibrated without affecting the span. o do this make sure that the weighing system is empty or at the point where you want the display to read zero. Goto Menu.. Press the [Enter] key. he display shows the actual input signal in mv/v. Press the [Enter] key. Press the right arrow key twice and the DAS will be back in weighting mode. Calibration is now complete DAS7.MKIII Manual v.xx Page 5

26 CALIBRAION PROCEDURE USING KNOWN LOAD CELL MV/V SENSIIVIY DAS7.MKIII SINGLE ACIVE LOAD CELL PLUS HINGE PIVO Example: A rectangular tank fitted with off Kg mv/v load cell central on the left hand side and a pivot (hinge) along the complete opposite face. Dead load 5Kg, Live range Kg in Kg steps It is assumed that the load cell system is connected to the DAS7. and the power is on. he maximum and minimum display values, display increment size and decimal point position should be defined prior to carrying out the calibration (See Menu ). For this example the display maximum is define as 9, the display minimum is -, the display step size is and there is no decimal point. Remember that all parameters under sections. -.,. -. and. -. can only be accessed or changed after the Recessed Enable Switch has been pressed. a) Go to Menu.. Press the [Enter] key. he 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 [Enter] key. his defines the actual zero calibration point. b) Go to Menu. and using the UP/DOWN and RIGH 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 mv/v. But the hinge pivot on the opposite side of the tank carries half the load (if the centre of gravity is in the middle of the tank). herefore when there is Kg in the tank equally split between the load cell and the hinge the output from the load cell will be mv/v. he system is therefore Set the display to read. Press the [Enter] key. his defines the theoretical calibration weight (equivalent to mv/v in this example). c) Go to Menu. and using the UP/DOWN and RIGH keys 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.mv/v. In multiple load cell installations ( load cells wired in parallel) the sensitivity is the average of all the load cells connected. Press the [Enter] key. his defines the theoretical span calibration point. d) If required the zero can be re-calibrated without affecting the span. o do this make sure that the weighing system is empty or at the point where you want the display to read zero. Goto Menu.. Press the [Enter] key. he display shows the actual input signal in mv/v. Press the [Enter] key. Press the right arrow key twice and the DAS will be back in weighting mode. PLEASE NOE HA IF HE LOAD IS NO EQUALLY SHARED BY HE LOAD CELL AND PIVO HE CALIBRAION WILL BE INACCURAE. DAS7.MKIII Manual v.xx Page 6

27 DAS7.MKIII echnical Specifications of the DAS 7.: Linearity Load Cell Excitation Analogue Input Range Minimum input per vsi Resolution Conversion rate Digital filter Calibration Computer Interface Weighing functions Force functions Analogue Output Inputs Outputs emperature effects emperature range Enclosure Dimensions Power supply EMC/Approvals <.% Full Scale 5 V DC, load cell(s) input impedance 8- Ohms, 6-wire technique ±. mv/v (bipolar, for push/pull weighing or tension/compression forces).5µv per interval Internal ±6, counts, ± 8 bit A/D converter; external max ± 99,999 counts Internal measurements per second; external up to 6 measurements per second FIR Filter Hz or IIR Filter Hz; each programmable in 8 steps Software calibration and set up RS85 or RS full duplex, Baud; up to devices on a bus.(rs85) Zero, gross, tare, net, filter etc. Peak, hold, valley, peak to peak /... ma or... V (special order) opto-isolated inputs, - VDC max..5 ma opto-isolated outputs, <5 V DC/AC A On zero 5 ppm/ K typ.; max. < ppm/ K On span ppm/ K typ.; max. <8 ppm/ K - C to +5 C (compensated); - C to +6 C (storage) in plated steel enclosure sealed to IP 5 x 66 x 9 mm, weight approx. 8 g... 5 V DC ±%, < W, galvanically isolated. CE 7//EEC; 9/98/EEC and 89/6/EEC / OIML R76 for 5d DAS7.MKIII Manual v.xx Page 7