PR electronics 2261 Manuale utente

2261

mV transmitter

No. 2261V102-UK

From ser. no. 970106001

1542

PR electronics A/S tilbyder et bredt program af analoge og digitale

signalbehandlingsmoduler til industriel automation. Programmet

består af Isolatorer, Displays, Ex-barrierer, Temperaturtransmittere,

Universaltransmittere mﬂ. Vi har modulerne, du kan stole på i selv

barske miljøer med elektrisk støj, vibrationer og temperaturudsving,

og alle produkter opfylder de strengeste internationale standarder.

Vores motto »Signals the Best« er indbegrebet af denne ﬁlosoﬁ – og

din garanti for kvalitet.

PR electronics A/S oers a wide range of analog and digital signal

conditioning devices for industrial automation. The product range

includes Isolators, Displays, Ex Interfaces, Temperature Transmitters,

and Multifunctional Devices. You can trust our products in the

most extreme environments with electrical noise, vibrations and

temperature ﬂuctuations, and all products comply with the most

exacting international standards. »Signals the Best« is the epitome

of our philosophy – and your guarantee for quality.

PR electronics A/S ore une large gamme de produits pour le

traitement des signaux analogiques et numériques dans tous

les domaines industriels. La gamme de produits s’étend des

transmetteurs de température aux acheurs, des isolateurs aux

interfaces SI, jusqu’aux modules universels. Vous pouvez compter

sur nos produits même dans les conditions d’utilisation sévères,

p.ex. bruit électrique, vibrations et ﬂuctuations de température.

Tous nos produits sont conformes aux normes internationales les

plus strictes. Notre devise »SIGNALS the BEST« c’est notre ligne

de conduite - et pour vous l’assurance de la meilleure qualité.

PR electronics A/S verfügt über ein breites Produktprogramm

an analogen und digitalen Signalverarbeitungsgeräte für die in-

dustrielle Automatisierung. Dieses Programm umfasst Displays,

Temperaturtransmitter, Ex- und galvanische Signaltrenner, und

Universalgeräte. Sie können unsere Geräte auch unter extremen

Einsatzbedingungen wie elektrisches Rauschen, Erschütterungen

und Temperaturschwingungen vertrauen, und alle Produkte von

PR electronics werden in Übereinstimmung mit den strengsten

internationalen Normen produziert. »Signals the Best« ist Ihre

Garantie für Qualität!

2261V102-UK 1

mV TRANSMITTER

TYPE 2261

CONTENTS

Applications............................................................................................... 2

Technical characteristics...................................................................... 3

Inputs........................................................................................................... 3

Taring........................................................................................................... 3

Standard current / voltage output................................................... 3

Front error LED ........................................................................................ 4

Transducer supply .................................................................................. 4

Sense........................................................................................................... 4

Electrical specifications........................................................................ 4

Order ............................................................................................................ 6

Hardware programming........................................................................ 6

Block diagram........................................................................................... 7

Routing diagram...................................................................................... 8

Programming / operating the function keys ............................... 10

Description of functions (selection of application)................... 13

2 2261V102-UK

mV TRANSMITTER

• Load cell amplifier

• mV to current / voltage conversion

• Front-programmable / LED display

• Relative calibration of input span

• NPN / PNP input for external taring

• Supply for standard transducers

----------------------------------------------------------------------------------------------------------------

SUPPLY:

Supply voltage: 24 VDC

Transducer supply: 5...13 VDC

----------------------------------------------------------------------------------------------------------------

INPUT RANGE:

Measurement range: -40...100 mV

Taring input: PNP / NPN / front key

----------------------------------------------------------------------------------------------------------------

OUTPUT RANGE:

Current output: 0...20 mA

Voltage output: 0...10 V

----------------------------------------------------------------------------------------------------------------

Applications

Tank filling and draining

Weighing with a taring function

Measurement of cable tensile force

Level control

Signal conversion / amplification

The 2261 converts bipolar mV signals from transducers supplied directly by the

module to standard current / voltage signals. The 2261 is suitable for load cell

applications. By way of the relative calibration function the scale can be tared,

i.e. 0 and 100% calibrated without the need of the equivalent load. By way of

the taring function the measured range is set to either 0% when filling or 100%

when draining.

2261V102-UK 3

Technical characteristics

In general:

The 2261 is microprocessor-controlled and basic-calibrated meaning that input

and output can be programmed acc. to the requested signal range without any

readjustment. This guarantees high accuracy and flexibility.

The user interface consists of a 3-digit display and 3 front function keys which are

used for taring or change of input / output signal range.

Inputs

Analog input

The analog input can be programmed for voltage in the range -40...100 mVDC with

a min. span of 10 mV and max. offset of 70% of max. mV value.

A percentage overrange of the selected measurement range can be defined, there-

by making the unit react to an mV input outside the selected 0 and 100% range.

The display will show the input percentage.

The output must be scaled in such a way that the selected overrange is within the

allowed output signal range.

Digital input:

The digital signal can be selected as either NPN (short circuit to gnd.), or PNP

(+24 VDC).

Taring

Taring can either be by way of the digital input or from the front.

At 0% taring, the analog input will show 0% after taring. At 100% taring, the

analog input will show 100% after taring, corresponding to tara + net weight =

gross weight.

The analog input span is not changed but is kept relative to the new offset value.

The taring function can be disabled at the front.

Standard current / voltage output

The analog output can be programmed to current in the range 0...20 mA or voltage

in the range 0...10 VDC with a min. span of 5 mA or 250 mVDC with max. offset of

50% of the selected max. value.

By short-circuiting pins 2 and 3, the voltage signal is available between pins 2

and 1.

For voltage signals in the range 0...1 VDC, a 50 Ωshunt (DP 2-1) is applied; in the

range 0...10 VDC, a 500 Ωshunt (DP 2-2) is applied.

When both voltage and current signals are used simultaneously, the mA loop must

go to ground through the internal shunt.

4 2261V102-UK

Front error LED

At an incorrect output, the red LED will flash, e.g. at overrange saturation.

Transducer supply

Front-programmable to 5...13 VDC. It is up to the customer to ensure a max. load of

230 mA (e.g. 6 parallel 350 Ω load cells).

Sense

When the transducer supply is applied, the sense input can be used for compensa-

tion for cable resistance to the transducer.

Electrical specifications

Specifications range:

-20°C to +60°C

Common specifications:

Supply voltage.......................................................... 19.2...28.8 VDC

Internal consumption ............................................. 2.2 W

Max. consumption.................................................... 7.2 W

Signal / noise ratio .................................................. Min. 60 dB

Signal dynamics, input........................................... 17 bit

Signal dynamics, output ....................................... 16 bit

Updating time ........................................................... 20 ms

Response time, programmable ......................... 0.06...999 s

Calibration temperature ........................................ 20...28°C

Temperature coefficient........................................ < ±0.01% of span / °C

Linearity error ........................................................... ≤ ±0.1% of span

Effect of supply voltage change....................... < ±0.002% of span/ %V

Auxiliary voltage:

Transducer supply................................................... 5...13 VDC

Load (max.)................................................................. 230 mA

EMC immunity influence....................................... < ±0.5% of span

Relative air humidity.............................................. < 95% RH (non-cond.)

Dimensions (HxWxD).............................................. 80.5 x 35.5 x 84.5 mm

Protection degree.................................................... IP50

Weight .......................................................................... 130 g

2261V102-UK 5

Electrical specifications - Input:

mV input:

Measurement range................................................ -40...100 mV

Min. measurement range (span)........................ 10 mV

Max. offset ................................................................. 70% of selected max. value

Input in relation to supply gnd........................... > -5 V and < +10 V

Max. cable resistance per wire........................... 15 Ω

Suppression of

transducer cable resistance ................................ > 300

Input resistance........................................................ > 10 MΩ

Overrange ................................................................... 0...999% of selected

measurement range

Digital input:

NPN ............................................................................... Pull up 24 VDC / 6.9 mA

PNP................................................................................ Pull down 0 VDC / 6.9 mA

Trig level low............................................................. < 6 VDC

Trig level high ........................................................... > 10.5 VDC

Pulse width ................................................................ > 30 ms

Electrical specifications - Output:

Current output:

Signal range............................................................... 0...20 mA

Min. signal range (span)........................................ 5 mA

Max. offset ................................................................. 50% of selected max. value

Load (max.)................................................................. 20 mA / 600 Ω / 12 VDC

Load stability............................................................. < ±0.01% of span/100 Ω

Current limit ............................................................... < 23 mA

6 2261V102-UK

Voltage output through internal shunt:

Signal range............................................................... 0...10 VDC

Min. signal range (span)........................................ 250 mVDC

Max. offset ................................................................. 50% of selected max. value

Load (min.).................................................................. 500 kΩ

Voltage limit .............................................................. < 11.5 VDC

Observed authority requirements:

EMC................................................................................ 2014/30/EU

RoHS ............................................................................. 2011/65/EU

EAC................................................................................. TR-CU 020/2011

Of span = Of the presently selected range

Hardware programming

Order

JP1 JP2 Output range MENU 4.3

OFF OFF 0...10 mA

0...20 mA

001

002

ON OFF 0...500 mV

0...1000 mV

003

004

OFF ON 0...5 V

0...10 V

005

006

Type

2261

2261V102-UK 7

BLOCK DIAGRAM

2261

CPU

A / D

PGA D / A

Vreg

NPN

PNP

0...20

v v

I+

V+

DC 10

EEPROM JP1 JP2

50 500 1

Supply+24VDC

Supplygnd.

Input+

Sense

DigitalInput

+24VDC

Input-

VExcitation +

VExcitation gnd.

Gnd.

I + V

Out I

Out

24VDC

Spec.

VOut

R 68

8 2261V102-UK

0.0

5.0 5.1 5.5

4.0 4.1

5.2 5.3

1.0 1.3

3.0 3.1 3.2

1.1 1.2

4.2 4.3 4.4

5.4

0 … 999

Taring

If no buttons are pressed for a period of 2 minutes,

display returns to stage 0.0

040 = enable change in all stages

- - - = disable change

Routing diagram

Taring

Select

application

Frequency

suppression

50 Hz

60 Hz

Analog

output Output 0%

Transducer supply

0.06...999 s

Response

time

Password code

Input

High cal. %Calibration

Overrange

Digital input

type

Current or

Voltage

001 = 0...10 mA

002 = 0...20 mA

003 = 0...500 mV

004 = 0...1000 mV

005 = 0...5 V

006 = 0...10 V

Output 100%

Program

access

5.0...13 VDC

If the key is pressed for a period > 2 sec.

Input 0%

0...20.0 mA

0...10.0 VDC

0...20.0 mA

0...10.0 VDC

Low cal. %

0...999% of span

0...100% 0...100%

Input 100%

-40...100 mV -40...100 mV

5.1

5.0

Memory

Programming

Press and hold , then press

to store changes

Change of parameter

Next digit or point

Go to entry menu / Leave

menu without changes

Routing diagram

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