Flintec DAS 72.1 Mark III User Manual

Process Indicator Type DAS 72.1 Mark III

MANUAL

Firmware Version 72.181.v.4.28 or higher

Hardware Version 72.101.5.v.3.0x

Document No G128 Rev6 GB

Manual DAS 72.1 Page 1

www.flintec.com

A GENERAL

A.1 INTRODUCTION AND SPECIFICATION

The model DAS 72.1 Mark III is a high precision, high speed digital amplifier for weighing and force measurements with strain gauge (SG) sensors. The device can be controlled either by the front keys or via RS 485 port. 3 Logic inputsand outputs makecomplex control functionseasy.The 3 logic outputscan be controlled external too.

With the available as standard analogue output 4…20 mA the DAS 72.1 fulfills industrial requirements. The device features full multi-drop communications capability and can be programmed via a straightforward ASCII command set. The LDU xx.x series and the amplifier DAS 72.1 with on-board digital display, use the same command set. You can connect up to 32 SG amplifiers of either the LDU XX.X series or DAS 72.1 type onto a single RS485 bus.

The DAS 72.1 with its high precision 18-bit A to D converter and internal sample rate of up to 2400 measure

-

ments / second, is particularly suitable for high dynamic measurements and control purposes.

Page 2 Manual DAS 72.1

Linearity < 0.002 % Excitation 5 V DC, load cells 80-2000 Ohm, 6 wire technique Analogue input range ±3.2 mV/V (bipolar, for weighing applications and force measurements) Minimum input per vsi 0.05 μV/d Resolution Internal ±260000 counts, ±18-Bit-A/D convertor; display max. ±99999 counts Conversion rate Internal 2400 measurements per second; external up to 600 measurements per second Digital filter FIR Filter 2.5 ... 19.7 Hz or IIR Filter 0.25 ... 18 Hz; programmable in 8 steps each Calibration Software calibration and set up Computer interface RS485 or RS422, full duplex, 9600 ... 115200 Baud; bus capability up to 32 devices

(RS485) Weighing functions zero, gross, tare, net, filter etc. Analogue output 0/4...20 mA, 14-Bit resolution Display 10.2 mm LED, green, 5 digits, 3 status LED for nett/motion/sign,

6 status LED for logic inputs and outputs Logic inputs 3 opto-isolated inputs, 10 ... 30 V DC, max. 3.5 mA Logic outputs 3 opto-isolated outputs, < 45 V DC / AC, 1 A Temperature effects on zero 5 ppm/°K typ.; max. <10 ppm/°K

on span 4 ppm/°K typ.; max. <8 ppm/°K Temperature range –10 °C to +50 °C (operating); –20 °C to +60 °C (storage) Enclosure tinned steel enclosure, protection IP 40; for 35 mm DIN-rail mounting.

Special housing IP 65 on request. Dimensions 135 x 66 x 19 mm, weight ca. 180 g Power supply 11 ... 25 V DC ±10 %, < 3 W, galvanically isolated EMC CE 73/23/EEC; 93/98/EEC and 89/336/EEC

All dimensions in mm. Dimensions and specifications are subject to change without notice.

DAS 72.1 Mark II / III Specifications

A.2 KEY FUNCTIONS

Manual DAS 72.1 Page 3

T

Inp.2

0

T

Inp.1

- SIGNAL

SHIELD

- EXCITATION

- SENSE

+ EXCITATION

+ SENSE

+SIGNAL

Load cell

connections

Power supply 12-25 V DC

+0

Input 1 (Functions as

Zero button, Tare off, Set zero, see paragraph B.3.6)

Net mode LED

Zero Key

Sets new zero (if enabled). Reverts to calibrated zero if the button is held down for more than 3 seconds. Switches unit back to ‘Gross’ mode if a tare has been set. Acts as the‘Enter’ key in the ‘Set-up’ Mode.

Tare 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 inside sub menus.

“Set up”

menu structure

Press either key for

more than 3 seconds

to enter the set up mode

Recessed Enable Switch (Enables changes to be made to important parameters. Must be pressed before attempting to change parameters 1.1 to 1.3, 2.1 to 2.3 and 3.1 to 3.3)

RS422/485

COM port

No motion LED

Logic

outputs

Logic

inputs

Input 2 (Functions as

Tare button, Display net mode, see paragraph B.3.6)

Down key

Up key

0 4-20mA

analogue

output

/

+0

Receive +

Receive -

Transmit +

Transmit -

Ground

Logic Input 1 (+)

Logic Input 2 (+)

Logic Input 3 (+)

Commmon

0

Net

Digital Amplifier + Setpoint DAS 72.1

+++ +

+

0-20mA

--- -

-

0

Exc Sen Sig Sig Sen Exc Rx Rx Tx Tx

Load cell 5Vdc 80mA

Isolated

Logic Outputs

Isolated

Logic Inputs

Isolated

Power 11 -25Vdc

RS422/485CL 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.f Hz

2.Algorithm

3.Update rate

4.

cut

Motion´n´

5.CLout

1.4mA=´n´

2.20mA=´n´

3.Base

4.TestImA

6.Input 1/2/3

1.Assign key

2.

3.

4.Test

7.Outp. 1/2/3

1.SPoint ´n´

2.Hyst. ´n´

3.Base

4.Test

±

8.Datacom.

1.Baud rate

2.422/485

3.Address

4.Auto trnsm.

T

T0

T

Inp.1 Inp.2

1

2 3 4 5 6 7 8 9 10 111213

14 27

261516 17 2324 251819 202122

12 3com

Mark III

Io Gnd

Logic input 1 2 3

123

Logic output

Depress

To

Change

B KEYBOARD SET UP

Page 4 Manual DAS 72.1

A GENERAL 2 A.1 INTRODUCTION AND SPECIFICATION 2 A.2 KEYFUNCTIONS 3 B KEYBOARDSET UP 4 B.1 SHORTMANUALOF KEYBOARD SETUP 5 B.2 SETUPTABLE 6 B.3 SETUP FLOWCHARTS 7 B.3.1 Zerosetup,Menu 1.1 - 1.4 7 B.3.2 Spansetup,Menu 2.1 -2.4 8 B.3.3 Displaysetup,Menu 3.1 - 3.4 9 B.3.4 Filter / nomotion set up, Menu 4.1-4.4 10 B.3.5 Analogueoutput set up, Menu 5.1-5.4 11 B.3.6 Logicinput set up, Menu 6.1.3-6.3.4 12 B.3.7 Logicoutput set up, Menu 7.1-7.3 14 B.3.8 Datacommunication set up,menu 8.1 - 8.4 15 B.3.9 Errorcodes 16 B.4 EXAMPLES 17 B.4.1 Example1,calibration procedure using weights 17 B.4.2 Example2,calibration procedure using loadcell mV/V sensitivity and

zero offset 19 B.4.3 Example3,calibration procedure using loadcell mV/V sensitivity 21 D CEKONFORMITÄTSERKLÄRUNG 57

B.1 SHORT MANUAL OF KEYBOARD SETUP

Manual DAS 72.1 Page 5

Setup menu : To enter, press one of the arrow keys for 3 seconds. To change calibration data, also press recessed switch (to the left of the display) once.

1. ZERO 2. Span 3. Display 4. Filter 5. CL out 6. Input 1/2/3 7. Output 1/2/3 8. Data Com

1. 0 / allow >O< 1. Set cal.”n” 1. o/u limits ‘n’ 1. f-cut Hz 1. 4 mA=’n’ 1. Assign key 1. SPoint ‘n’ 1. Baud rate

2. Calibrate 2. Calibrate 2. Step*’n’ 2. Algorithm 2. 20 mA=’n’ 2. 2. Hyst +/- ‘n’ 2. 422/485

3. Set mV/V 3. Set mV/V 3. Dec.point 3. Update rates 3. Base 3. 3. Base 3. Address

4. Tare Memory 4. Disp. mV/V 4. Logic stats 4. Motion ‘n’ 4. Test I mA 4. Test 4. Test 4. Auto trnsm.

1. Zero Tracking or Set

Zero lock / unlock

2. Calibrate Zero with

actual or external

simulated input

signal

3. Calibrate Zero to

display "Zero” with

manual setup of

mV/V signal

4.1 Tare "ON":= Tare

value stred

non-volatile

Tare "OFF": Tare

value deleted at

power off

4.2 EX-Modus

"ON" Load cells

connected with

Zener barriers

"OFF" Load cells

connected without

Zener barriers

1. Calibration value for

actual measured

signal after 2.2 or

with internal mV/V

signal after 2.3

should be displayed

Example: 10 000 (g)

2. Input signal of load

cell(s) connected or

will be simulated by a

simulator

This signal refers to

calibrate value of

setup 2.1

3. Input signal in mV/

setupwiththefront

panel keys

This signal refers to

calibrate value of

setup 2.1

1,6500 mV/V @ 1000

(g)

4. Display of actual

input signal in mV/V

For test purposes

1. Measured value

at which the display

shows an overload (o)

or an underload (u)

2. Display step size as

1, 2, 5, 10, 20 etc

3. Position decimal

point of the display

Example:

000.00 @ 100.00(g)

4. Display I/O:

• No Status I/O

• Short display of

status

(approx 1,5 s)

• Permenant status

I/O

1. Cut off frequency

adjustable from

1=18Hzto

8 = 0.25 Hz

Typical setup:

"4"=3 Hz

2. Select Filter Type:

• FIR-Filter for quick

signal changes

• IIR-Filter for high

dampening

•

3. Update rate

This setup has

additional influence

on filters

4.1 No Motion Range

4.2 Stabilisation time

for in motion band

(Tare, Zero and

Zero Tracking are

only allowed at

"No Motion")

1. Setup value for an

output of 4 mA

Example:

0.0 (g) @ 4 mA

2. Setup value for an

output of 20 mA

Example:

1000 (g) @ 20 mA

3. Base of analogue

output:

• Gross value

• Nett value

• Average valuet

• Hold valuet

• Peak to Peak valuet

• Valley valuet

• Display value

• Swiched off

4. Simulate an analogue

output signal

Setup 12.345 for

getting an output

current of 12,345 mA

1. External Key control :

• (00) not used

• (01) Zero

• (02) Tare

• (03) Move up

• (04) Move down

• (05) External trigger

• (06) Get average

• (07) Display Peak

• (08) Delete Peak

• (09) Display Hold

• (10) Peak to Peak

• (11) Display Valley

• (12) Key lock

• (13) Store Weight

• (14) Tare and delete

2. not used

3. not used

4. Test of Logic inputs

The display shows

the signal status of

logic inputs

Standard display is

switched off!

1.1

Setup setpoints

for outputs 1/2/3

1.2 Setup switch logic

for:

• on

• off

•

2. Setup Hysteresis of

setpoints

3. Base of Outputs:

• (0) Gross

• (1) Net

• (2) Peak

• (3) Average

• (4) Hold

• (5) Peak to Peak

• (6) Valley

• (7) Error 4 or 5

• (8) Swiched of

4. Test of Logic outputs

The display shows

the signal status of

logic outputs

Standard display is

switched off!

1. Setup Baudrate:

9600...115,2 k Baud

2. Setup Mode for Com.

ports

• RS-422 full duplex

• RS-485 Network

•

3. Setup Port Address

Valid addresses

0...255

Address "0" device is

always active on bus

Address enable via

"open"

4. Auto Transmit of

data:

• Gross

• Net

• All (Data string)

• Sap (A/D value)

• Aver (Average

value)

• Pea (Peak value

• Hold (Hold value)

• Vall (Valley value)

• Pp (Peak to Peak

value)

• Off (switched off)

B.2 SETUP TABLE

Page 6 Manual DAS 72.1

Description

LED Display Pre Setup Example: 3000 kg scale

with 0.5 kg step

Menu Point Value Value Result

Function Zero key (on/off))

Zero Calibration / Weight Zero Calibration / mV/V

<1.1>

<1.2> <1.3>

0-oFF

0.000

0-oFF

0.000

0.400

Set zero not

possible

kg

mV/V

Span / Weight or mV/V

Span / Weight Span / mV/V

Displays Actual mV/V Signal

<2.1>

<2.2> <2.3> <2.4>

20000

0.000

2.000

--

a)3000.0 or

b)750.0

0.9

2.000

--

Cal. with mV/V

Cal. with 750 kg

mV/V mV/V

-Maximum Display Value Maximum Display Value Display Step Size Decimal Point Position Display Status I/O

< 3.1.o > < 3.1.u >

<3.2> <3.3> <3.4>

99999

-9999 1 0 1

3100.0

-200.0 5

0.0 1

kg kg

0,5 kg

0000.0

Status for 1 s Cut Off Filter Frequency Filter Type

Update Rate per second (filtered) No Motion Range

<4.1> <4.2>

<4.3> <4.4>

33.3 FIR

3 1

3.0 FIR

3 1

Hz

for quick signal

changes

measurements/s

Set Analogue Output @ 4 mA Set Analogue Output @ 20 mA Base of Analogue Output Simulate Analogue Output Signal

<5.1> <5.2> <5.3> <5.4>

00000 20000

gross

--

0.0

3000.0 gross

--

kg kg

gross

-Input 1 for External Key Control Input 2 for External Key Control Input 3 for External Key Control Read Iinput Status Base of Digital Inputs Test Logic Inputs

< 6.1.1 > < 6.2.1 > < 6.3.1 >

<6.2> <6.3> <6.4>

--

-Output Setpoint 1 Output Setpoint 2 Output Setpoint 3 Hysteresis & Logic Setpoint 1 Hysteresis & Logic Setpoint 2 Hysteresis & Logic Setpoint 2 Base Setpoint 1 Base Setpoint 2 Base Setpoint 3 Function Test Output 1 Function Test Output 2 Function Test Output 3

< 7.1.1 > < 7.2.1 > < 7.3.1 > < 7.1.2 > < 7.2.2 > < 7.3.2 > < 7.1.3 > < 7.2.3 > < 7.3.3 > < 7.1.4 > < 7.2.4 > < 7.3.4 >

99999 00000

oFF

--

0000.0

1000.0

3000.0

0000.0

0000.0 net net net

--

kg kg kg kg kg

kg net net net

--

-Baudrate RS-422/485 Port Port Mode (422 or 485) Device Address Com Port Auto Transmit Data

<8.1> <8.2> <8.3> <8.4>

9600

422

0

oFF

9600

422

0

nEt

Baud

422-Port

Device No.

auto transmit

net weight

B.3 SET UP FLOWCHARTS

B.3.1 Zero set up, Menu 1.1 - 1.4

Manual DAS 72.1 Page 7

Store Tare value, setting ON or OFF OFF: Tare value deleted at power off ON: Tare value stored non-volatile (max. 1 000 000 times)

0

T

Inp.1

0

T

Inp.1

CALIBRATE OR ADJUST THE ZERO POINT

Remark:

(CONVENTIONAL WEIGHING SYSTEM)

Display shows the actual input signal in mV/V. Press the Enter key to store the zero.

scale should be unloaded.

CALIBRATE THE ZERO POINT FROM THE LOAD CELL mV/V READING

Use the UP/DOWN & MOVE RIGHT keys to set the mV/V reading at which the unit should read zero.

SET UP

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

Press the UP or DOWN key for more than 3 seconds to enter the Set-up Menu

0

T

Inp.1

T

Inp.2

Note: Recessed Enable Switch (Enables changes to be made to important parameters. Must be pressed before attempting to change parameters

1.1 to 1.3, 2.1 to 2.3 and 3.1 to 3.3)

Automatic Zero Tracking Settings: 0 ... 255 d

Function is swiched off at setting 00 000. Zero Setting with zero key or by external signal is not possible (Menu 6).

Function is swiched on at setting 00 001 or higher, (max 00 255). Zero Setting with zero key or by external signal (Menu 6). Setting 00 001 sets a zero range of +/-2%ofUpper Display Limit (Menu 3.1), setting 00 002 up to 00 255 sets a range of2dupto255d(independant of decimal point setting).

0

T

Inp.1

T

Inp.2

0

T

Inp.1

T

Inp.2

0

T

Inp.1

EX-Modus, setting ON or OFF OFF:Load cell connection without Zener barrieres ON: Load cell connection with Zener barrieres,

extended error band for ERR 5

0

T

Inp.1

0

T

Inp.1

B.3.2 Span set up, Menu 2.1 - 2.4

Page 8 Manual DAS 72.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

SET THE SPAN CALIBRATION VALUE

Twopossibilities areavailable: A. Setthedisplayvalueequivalent tothecalibrationweight,continue withstep2.2

or

B. Use themV/Vsignalderivedfromthe loadcell(s)test data,continuewith step2.3.

CALIBRATE THE SPAN (CONVENTIONAL WEIGHING SYSTEM)

Display shows the actual input signal in mV/V. Apply test weights equivalent to the calibration value set in section 2.1. Press the Enter key to store the new span value.

CALIBRATE THE SPAN FROM THE LOAD CELL mV/V READING

Use the UP/DOWN & MOVE RIGHT keys to set the mV/V reading at which the unit should read the value set in section 2.1.

DISPLAY THE INPUT SIGNAL IN mV/V

This function allows you to view the input signal in mV/V.

B.3.3 Display set up, Menu 3.1 - 3.4

Manual DAS 72.1 Page 9

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

SET THE DISPLAY OVER RANGE LIMIT (MAXIMUM VALUE +99 999)

Use the and keys to set the maximum display value above which the display shows over range (all dashes in the top of the display).

SET THE DISPLAY UNDER RANGE LIMIT (MINIMUM VALUE -99 999)

Use the and keys to set the minimum display value below which the display shows under range (all dashes in the bottom of the display).

SET THE DISPLAY DIVISION OR STEP SIZE (1, 2, 5, 10, 20, 50, 100, 200, 500)

Use the and keys to set the required display division or step size.

SET THE DECIMAL POINT POSITION ON THE DISPLAY (0, 0.0, 0.00, 0.000, 0.0000)

Use the and keys to set the required decimal point position on the display.

LOGIC I-O STATUS

Select setting 0, 1 or 2 with and .

Setting 0 = Continious indication of Weight, no input/output status. Setting 1 = Indication of Weight, short indication input/output status (ca. 1,5 sec) Setting 2 = Continious indication of input/output status.

0

T

Inp.1

T

Inp.2

0

T

Inp.1

3.4.0

3.4.1

3.4.2

T

Inp.2

T

Inp.2

T

Inp.2

T

Inp.2

T

Inp.2

B.3.4 Filter / no motion set up, Menu 4.1 - 4.4

Page 10 Manual DAS 72.1

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

Set the low pass filter cut off frequency

: Setting

Set Range: 0 - 8 with Filter setting 18 Hz (4.1.1) to 0.25 Hz (4.1.8) with Filter type IIR. Filter setting 19.7 Hz (4.1.1) to 2.5 Hz (4.1.8) with Filter type FIR.

“0” (4.1.0) deactivates the Filter.

See Paragraph C.4.5 for more information.

Attention

Set the type of low pass filter required

Setting with

: FIR or IIR Type IIR should be used where heavy damping is required. Type FIR should be used where high speed is required.

Defines the number of filtered readings averaged

Attention:

Set Range: 0-7mit This Parameter defines the number of Readings from the IIR or FIR filter that will be averaged. Selection between “0” (1 Reading) and “7” (128 Readings).

See Paragraph C.4.5 for more information.

Set the No Motion Range

Attention:

Set Range: 0 - 30 000 steps and Fluctuations in weight values inside this range will be considered as ‘stable’.

See also 4.4.2 for the Stabilisation Time If the condition of the No Motion Range is fullfilled within the Stabilistion Time the “No Motion” status bit will be set to allow zero setting, taring as well as calibrating zero and span.

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

T

Inp.2

0

T

Inp.1

Set the Stabilisation Time

Set Range: 0 - 30 000 mS with and Sets the Stabilisation Time in milliseconds within which the weight value displayed has to remain within the No Motion Range, for the weigh to be considered ‘stable’.

0

T

Inp.1

T

Inp.2

4.1.0 : : :

4.1.8

4.3.0 : : :

4.3.7

T

Inp.2

T

Inp.2

B.3.5 Analogue output set up, Menu 5.1 - 5.4

Manual DAS 72.1 Page 11

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

Set the weight value at which 4 mA is send

Examples:

Setting with and Set the weight value at which 4 mA is send.

Weighing range 3 000 kg and 3 000 d with 0/4...20 mA.

Analogue output 4...20 mA: for 0 kg=4mAmake setting 00 000. Analogue output 0...20 mA: for 600 kg=4mAmake setting 00 600.

Set the weight value at which 20 mA is send

Examples:

Setting with and Set the weight value at which 20 mA is send.

Weighing range 3 000 kg and 3 000 d with 0/4...20 mA.

Analogue output 4...20 mA: for 3 000 kg = 20 mA make seting 03 000. Analogue output 0...20 mA: for 3 000 kg = 20 mA make seting 03 000.

Set the analogue output base

GROS Gross NET Net PEA Peak AVER Average HOLD Hold PP Peak÷Peak VALL Valley DISP Display OFF OFF

Setting with and for the following values:

= Analogue output follows value = Analogue output follows value = Analogue output follows value (maximum) = Analogue output follows value = Analogue output follows value = Analogue output follows value = Analogue output follows value (minimum) = Analogue output follows value = Analogue output is switched

Test the current output

Set Range 0...20 mA with . And Set a current value in mA, which will be sent down the analogue output, independent of the load applied to the weighing system.

T

Inp.2

T

Inp.2

T

Inp.2

T

Inp.2

B.3.6 Logic input set up, Menu 6.1.3 - 6.3.4

Page 12 Manual DAS 72.1

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

T

2

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

0

T

1

T

2

T

2

0

T

1

0

T

1

Set the function for Logic Input “1”

Possible settings: 00, 01 ,02 ,03 ,04 ,05 ,06 ,07, 08, 09, 10, 11, 12, 13, 14.

Input “1” no function

Input “1” acts as Zero button

Input “1” acts as Tare button

Input “1” acts as Up arrow button

Input “1” acts as Down arrow button

Input “1” starts the Trigger function

Input “1” displays the Average value

Input “1” displays the Peak value (maximum)

Input “1” displays the Hold value

Input “1” displays the Peak to Peak value

Input “1” displays the Valley value (minimum)

Input “1” stores the actual weight (Hold value)

Input “1” disables the keyboard

Input “1” tares the display and deletes all other values like 6.1.1.08

Input “1” deletes the Peak value

T

2

The second digit coresponds with the input number

Fortsetzung nächste Seite

12

3

4

56

7

8

Logic input set up, Menu 6.1.3 - 6.3.4 (continued)

Manual DAS 72.1 Page 13

0

T

1

T

2

0

T

1

0

T

1

T

2

Check Logic Input “1”

(6.1.1. must be set to “0” => 6.1.1.0)

“In1 1.” Input is ”high”

As per section 6.1 but for Logic Input “2”

As per section 6.1 but for Logic Input “3”

“In1 0.” Input is ”low”

No function

12

3

4

56

7

8

B.3.7 Logic output set up, Menu 7.1 - 7.3

Page 14 Manual DAS 72.1

0

T

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0

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1

0

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0

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0

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0

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1

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2

0

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1

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1

T

2

0

T

1

Set the function for Logic Output “1”

Set whether Logic Output “1” switches ON or OFF

Use the UP/DOWN keys to set whether logic output 1 switches ON or OFF at the

Set the hysteresis value on the setpoint for Logic Output “1”

Permitted values +/- 99 999.

Set base for Logic Output “1”

GROS Gross NET Net PEA Peak AVER Average HOLD Hold PP Peak to Peak VALL Valley ERR Error OFF OFF

= value = value = value (maximum) = value = value = value = value (minimum) = 4 or 5 = Sets output

Set weight value at which Logic Output “1” switches

Permitted values +/- 99 999

0

T

1

T

2

Check Logic Output “1”

Use the UP/DOWN keys to switch.

The output is “on”.

As per section 7.1 but for Logic Output “3”

The output is “off”.

0

T

1

0

T

1

out 1

com

The second digit coresponds with the output number

As per section 7.1 but for Logic Output “2”

B.3.8 Data communication set up, menu 8.1 - 8.4

Manual DAS 72.1 Page 15

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

T

Inp.2

0

T

Inp.1

T

Inp.2

0

T

Inp.1

0

T

Inp.1

0

T

Inp.1

Set the Baud Rate for COMPORT (RS-422/485)

Setting with and

9 600 Baud 19 200 Baud 38 400 Baud 57 600 Baud

115 200 Baud

Select either RS-422 or RS-485

Setting with and 422 = RS-422-Interface (use for single DAS application) 485 = RS-485-Interface (use for multiple DAS application in BUS)

Set the Device Address Comport (RS-422/485)

Setting with and Set the device address for multi-drop to 001 ... 255. Set to 000 for single point to point applications.

T

Inp.2

T

Inp.2

T

Inp.2

0

T

Inp.1

T

Inp.2

0

T

Inp.1

Select the Autotransmit Mode Setting with

= Gross value = Net value = Data string with Gross, Net and Status = A/D value = Average value = Peak value (maximum) = Hold value = Valley value (minimum) = Peak to Peak value = Autotransmit OFF

GROS NET ALL SAP AVER PEA HOLD VALL PP OFF

B.3.9 Error codes

Page 16 Manual DAS 72.1

Set final zero out of range. (You are trying to set a zero which is greater than ±2% of the Upper Display Limit)

Excessive sensitivity requested. (The input signal is being divided into too many divisions i.e the size of each division is < 0.5 V)m

Faulty load cell connection (Open circuit / Short Circuit / Wire disconnected)

You are trying to enter a value which is not valid (Outside the acceptable parameter range)

The input signal is in excess of ± 2.6 mV/V

Display underload (Display value is more negative than the lower limit set in Menu 3.1.U)

Display overload (Display value exceeds the upper limit set in Menu 3.1.o)

The zero key is not enabled (See menu 1.1)

Remark

If you need to return the DAS72.1 Mark III 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

The Zero or Tare motion limit has been exceeded. Set Zero or Tare function disallowed. Review Zero and Tare motion limits set in menu 4.4

B.4 EXAMPLES

B.4.1 Example 1, calibration procedure using weights

Manual DAS 72.1 Page 17

3 Leg tank or silo fitted with 3 off 1000 kg @ 2 mV/V load cells.

Dead load 600 kg. Live range 2000 kg in 0.5 kg steps.

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 defined as 2100.0, the display minimum is

-200.0, the display step size is 0.5 kg.

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 and using the UP/DOWN and RIGHT keys set the display to read 0000.0. 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 value of the calibration weight(s) applied. For this example if the calibration load applied is 750 kg set the display to read 750.0. Press the 0 [Enter] key. This defines the calibration weight.

c

Go to Menu 2.2.Apply the calibration weight(s) to the weighing system. Press the 0 [Enter] key. The display will show the actual input signal in mV/V. Press the 0 [Enter] key. This defines the actual span calibration point.The displaywill show 2.2. Press the rightarrow keytwice and theDAS will beback inweighing mode.

Calibration is now completed.

Flowchart Example 1

Page 18 Manual DAS 72.1

SET UP

SET THE DISPLAY STEP SIZE. (1, 2, 5, 10, 20, 50, 100, 200, 500) Use the UP or DOWN key to set the required display step size.

1. Press the UP or DOWN key for more than 3 seconds to enter the Set-up Menu

2. Press the recessed enable switch

SET THE DISPLAY OVER RANGE LIMIT. (MAX. VALUE +99999) Use the UP/DOWN & MOVE RIGHT keys to set the maximum display value above which the display shows over range (all dashes in the top of the display).

SET THE DISPLAY UNDER RANGE LIMIT. (MIN. VALUE -99999) Use the UP/DOWN & MOVE RIGHT keys to set the minimum display value below which the display shows under range (all dashes in the bottom of the display).

SET THE DECIMAL POINT POSITION (0, 0.0, 0.00, 0.000, 0.0000) Use the UP or DOWN key to set the required decimal point position. Choose 0.0

SET THE SPAN CALIBRATION VALUE. Use the UP/DOWN & MOVE RIGHT keys to set the display value equivalent to the calibration weight, e.g. 750 kg.

CALIBRATE THE SPAN. (CONVENTIONAL WEIGHING SYSTEM) Display shows the actual input signal in mV/V. Apply test weights equivalent to the calibration value set in section 2.1. Press the Enter key to store the new Span value

Choose Filter type IIR (menu 4.2), Low Pass Filter 6 ... 8 (menu 4.1) and wait for ‘No Motion’ in the calibration routine.

Note:

Enter the

Set-up menu

Set the

step size

display

Set the Display

Upper Limit

(Overload)

Set the decimal

point position

Set the Display value

equal to the

Calibration weight

Calibrate the Span

Calibration

completed

Set the Display

Lower Limit

Calibrate the

Zero point

CALIBRATE THE ZERO POINT. (CONVENTIONAL WEIGHING SYSTEM) Display shows the actual input signal in mV/V.

Flintec DAS 72.1 Mark III User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual