VEGA VEGADIS 82 Operating Instructions

Operating Instructions

External display and adjustment unit for 4 … 20 mA/HART sensors

VEGADIS 82

4 … 20 mA/HART

Document ID: 45300

Contents

Contents

1 About this document................................................................................................................		4
1.1	Function............................................................................................................................	4
1.2	Target group......................................................................................................................	4
1.3	Symbols used...................................................................................................................	4

2 For your safety..........................................................................................................................		5
2.1	Authorised personnel........................................................................................................	5
2.2	Appropriate use................................................................................................................	5
2.3	Warning about incorrect use.............................................................................................	5
2.4	General safety instructions................................................................................................	5
2.5	EU conformity...................................................................................................................	6
2.6	NAMUR recommendations...............................................................................................	6
2.7	Installation and operation in the USA and Canada............................................................	6
2.8	Environmental instructions................................................................................................	6

3 Product description..................................................................................................................		7
3.1	Configuration....................................................................................................................	7
3.2	Principle of operation........................................................................................................	8
3.3	Packaging, transport and storage...................................................................................	10
3.4	Accessories....................................................................................................................	10

4	Mounting..................................................................................................................................			12
	4.1	General instructions........................................................................................................		12
	4.2	Mounting instructions......................................................................................................		12
5 Connecting to power supply.................................................................................................				15
	5.1	Preparing the connection................................................................................................		15
	5.2	Connection technology and steps...................................................................................		16
	5.3	Wiring plan......................................................................................................................		18
	5.4	Connection to HART systems.........................................................................................		18
	5.5	Connection to a controller or four-wire sensor.................................................................		19
	5.6	Connection example.......................................................................................................		21
	5.7	Switch-on phase.............................................................................................................		22
6 Set up with the display and adjustment module.................................................................				23
	6.1	Short description.............................................................................................................		23
	6.2	Insert display and adjustment module.............................................................................		23
	6.3	Adjustment system..........................................................................................................		24
	6.4	Measured value indication - Selection of national language............................................		25
	6.5	Start menu......................................................................................................................		26
	6.6	Parameter adjustment - VEGADIS 82.............................................................................		26
	6.7	Parameter adjustment - VEGAPULS WL 61....................................................................		31
	6.8	Parameter adjustment - VEGAWELL 52..........................................................................		43
	6.9	Parameter adjustment - Sensors from other manufacturers via Generic HART...............		48
7	Setup via PACTware................................................................................................................			52
	7.1	Connect the PC...............................................................................................................		52
	7.2	Parameter adjustment with PACTware............................................................................		53
	7.3	Saving the parameterisation data....................................................................................		54
8	Diagnostics and servicing.....................................................................................................			55
	8.1	Maintenance...................................................................................................................		55
2			VEGADIS 82 • 4 … 20 mA/HART

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				Contents
	8.2	Diagnostics.....................................................................................................................		55
	8.3	Rectify faults...................................................................................................................		56
	8.4	Exchanging the electronics module................................................................................		57
	8.5	Software update..............................................................................................................		57
	8.6	How to proceed if a repair is necessary..........................................................................		57
9	Dismount.................................................................................................................................			59
	9.1	Dismounting steps..........................................................................................................		59
	9.2	Disposal..........................................................................................................................		59
10	Supplement.............................................................................................................................			60
	10.1	Technical data.................................................................................................................		60
	10.2	HART communication, HART commands.......................................................................		63
	10.3	Dimensions.....................................................................................................................		64
	10.4	Industrial property rights.................................................................................................		67
	10.5	Trademark.......................................................................................................................		67

	Safety instructions for Ex areas
	Take note of the Ex specific safety instructions for Ex applications.
	These instructions are attached as documents to each instrument
	with Ex approval and are part of the operating instructions.
	Editing status: 2021-02-15
VEGADIS 82 • 4 … 20 mA/HART	3

1 About this document

1 About this document

1.1Function

This instruction provides all the information you need for mounting, connection and setup as well as important instructions for maintenance, fault rectification, the exchange of parts and the safety of the user. Please read this information before putting the instrument into operation and keep this manual accessible in the immediate vicinity of the device.

1.2Target group

This operating instructions manual is directed to trained personnel.

The contents of this manual must be made available to the qualified personnel and implemented.

1.3Symbols used

Document ID

This symbol on the front page of this instruction refers to the Document ID. By entering the Document ID on www.vega.com you will reach the document download.

Information, note, tip: This symbol indicates helpful additional information and tips for successful work.

Note: This symbol indicates notes to prevent failures, malfunctions, damage to devices or plants.

Caution: Non-observance of the information marked with this symbol may result in personal injury.

Warning: Non-observance of the information marked with this symbol may result in serious or fatal personal injury.

Danger: Non-observance of the information marked with this symbol results in serious or fatal personal injury.

Ex applications

This symbol indicates special instructions for Ex applications.

•ListThe dot set in front indicates a list with no implied sequence.

1Sequence of actions

Numbers set in front indicate successive steps in a procedure.

Battery disposal

This symbol indicates special information about the disposal of batteries and accumulators.

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2 For your safety

2 For your safety

2.1Authorised personnel

All operations described in this documentation must be carried out only by trained, qualified personnel authorised by the plant operator.

During work on and with the device, the required personal protective equipment must always be worn.

2.2Appropriate use

The VEGADIS 82 is suitable for measured value indication and adjustment of 4 … 20 mA/HART sensors.

You can find detailed information about the area of application in chapter " Product description".

Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.

2.3Warning about incorrect use

Inappropriate or incorrect use of this product can give rise to applica- tion-specific hazards, e.g.vessel overfill through incorrect mounting or adjustment. Damage to property and persons or environmental contamination can result. Also, the protective characteristics of the instrument can be impaired.

2.4General safety instructions

This is a state-of-the-art instrument complying with all prevailing regulations and directives. The instrument must only be operated in a technically flawless and reliable condition.The operator is responsible for the trouble-free operation of the instrument. When measuring aggressive or corrosive media that can cause a dangerous situation if the instrument malfunctions, the operator has to implement suitable measures to make sure the instrument is functioning properly.

During the entire duration of use, the user is obliged to determine the compliance of the necessary occupational safety measures with the current valid rules and regulations and also take note of new regulations.

The safety instructions in this operating instructions manual, the national installation standards as well as the valid safety regulations and accident prevention rules must be observed by the user.

For safety and warranty reasons, any invasive work on the device beyond that described in the operating instructions manual may be carried out only by personnel authorised by the manufacturer. Arbitrary conversions or modifications are explicitly forbidden.For safety reasons, only the accessory specified by the manufacturer must be used.

To avoid any danger, the safety approval markings and safety tips on the device must also be observed.

VEGADIS 82 • 4 … 20 mA/HART

5

2 For your safety

2.5EU conformity

The device fulfils the legal requirements of the applicable EU directives.By affixing the CE marking, we confirm the conformity of the instrument with these directives.

The EU conformity declaration can be found on our homepage.

2.6NAMUR recommendations

NAMUR is the automation technology user association in the process industry in Germany. The published NAMUR recommendations are accepted as the standard in field instrumentation.

The device fulfils the requirements of the following NAMUR recommendations:

•NE 21 – Electromagnetic compatibility of equipment

•NE 53 – Compatibility of field devices and display/adjustment components

For further information see www.namur.de.

2.7Installation and operation in the USA and Canada

This information is only valid for USA and Canada. Hence the following text is only available in the English language.

Installations in the US shall comply with the relevant requirements of the National Electrical Code (ANSI/NFPA 70).

Installations in Canada shall comply with the relevant requirements of the Canadian Electrical Code.

2.8Environmental instructions

Protection of the environment is one of our most important duties. That is why we have introduced an environment management system with the goal of continuously improving company environmental protection.The environment management system is certified according to DIN EN ISO 14001.

Please help us fulfil this obligation by observing the environmental instructions in this manual:

•Chapter " Packaging, transport and storage"

•Chapter " Disposal"

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3 Product description

3 Product description

3.1Configuration

Type label	The type label contains the most important data for identification and
	use of the instrument:

1

	2	7
	3	6
	4
		5

Fig. 1: Layout of the type label (example)

1Instrument type, product code

2Field for approvals

3Technical data

4hardware/software version, order number

5serial number of the device, QR code for device documentation

6Device protection class

7Reminder to observe the instrument documentation

Serial number - Instru-	The type label contains the serial number of the instrument. With it
ment search	you can find the following instrument data on our homepage:

•Product code (HTML)

•Delivery date (HTML)

•Order-specific instrument features (HTML)

•Operating instructions at the time of shipment (PDF)

Move to " www.vega.com" and enter in the search field the serial number of your instrument.

As an alternative, you can access these data via your smartphone:

•Download the VEGA Tools app from the " Apple App Store" or the " Google Play Store"

•Scan the DataMatrix code on the type label of the instrument or

•Enter the serial number manually in the app

Instrument versions	TheVEGADIS 82 is available in different housing materials, see
	chapter " Technical data".
	The instrument is optionally available with or without display and
	adjustment module.
Scope of this operating	This operating instructions manual applies to the following instrument
instructions	versions:

•Software from 1.12.00

•Hardware from 1.00.00

Scope of delivery

The scope of delivery encompasses:

•VEGADIS 82

•Display and adjustment module (optional)

VEGADIS 82 • 4 … 20 mA/HART

7

3 Product description

•Mounting accessories (optional)

•Documentation

––This operating instructions manual

––Ex-specific " Safety instructions" (with Ex versions)

––If necessary, further certificates

Information:

Optional instrument features are also described in this operating instructions manual. The respective scope of delivery results from the order specification.

				3.2 Principle of operation
Application area				VEGADIS 82 is suitable for measured value indication and adjustment
				of sensors with HART protocol. The instrument is looped directly into
				the 4 … 20 mA HART signal line at any location. Separate external
				energy is not necessary. VEGADIS 82 also operates exclusively as an
				indicating instrument in a 4 … 20 mA current loop.
Sensors				The instrument is particularly designed for:
				•	VEGAPULS WL 61
				•	VEGAWELL 52
				These sensors have no own display/adjustment.
				The housing ofVEGADIS 82 contains a filter element for ventilation.
				The instrument is thus also used for atmospheric pressure compen-
				sation for a submersible pressure transmitter.
				The VEGADIS 82 can also be used as an external indicating
				device for a four-wire sensor or a controller VEGAMET with active
				4 … 20 mA output.
Sensor adjustment				The sensor adjustment is carried out in the VEGADIS 82 integrated in
				the display and adjustment module.
				Note:
				The operation of a display and adjustment module with integrated
				Bluetooth function is not supported by VEGADIS 82.

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3 Product description

5

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4

3

2

1

Fig. 2: Connection of the VEGADIS 82 to the sensor, adjustment via the display and adjustment module

1Voltage supply/Signal output sensor

2VEGADIS 82

3Display and adjustment module

44 … 20 mA/HART signal cable

5Sensor

Sensor adjustment via PC with PACTware

The sensor adjustment is carried out via a PC with PACTware/DTM.

5

4

3

2

6

1

Fig. 3: Connection of the VEGADIS 82 to the sensor and the PC, adjustment via PC with PACTware

1Voltage supply/Signal output sensor

2VEGADIS 82

3VEGACONNECT

44 … 20 mA/HART signal cable

5Sensor

6PC with PACTware/DTM

Modes	4 … 20 mA mode: when connected to a 4 … 20 mA signal cable,
	VEGADIS 82 operates exclusively as a display instrument.
	Adjustment range: Indication scaling VEGADIS 82
	HART mode: when operated with a 4 … 20 mA/HART sensor, the
	VEGADIS 82 operates as display and HART adjusment instrument.
	The parameter adjustment of the sensor is carried out via HART
	communication. During the parameter adjustment, the VEGADIS 82
	operates as a Primary or Secondary Master to the sensor.
VEGADIS 82 • 4 … 20 mA/HART	9

3 Product description

	Adjustment range: Sensor adjustment, indication scaling VEGADIS
	82
	HART multidrop: the VEGADIS 82 can be also used as an indicating
	device for a bus participant in a HART multidrop system.
	Adjustment range: Sensor adjustment for a bus participant, indication
	scaling VEGADIS 82
	3.3 Packaging, transport and storage
Packaging	Your instrument was protected by packaging during transport. Its
	capacity to handle normal loads during transport is assured by a test
	based on ISO 4180.
	The packaging of standard instruments consists of environment-
	friendly, recyclable cardboard. For special versions, PE foam or PE
	foil is also used. Dispose of the packaging material via specialised
	recycling companies.
Transport	Transport must be carried out in due consideration of the notes on the
	transport packaging. Nonobservance of these instructions can cause
	damage to the device.
Transport inspection	The delivery must be checked for completeness and possible transit
	damage immediately at receipt. Ascertained transit damage or con-
	cealed defects must be appropriately dealt with.

Storage

Storage and transport temperature

Up to the time of installation, the packages must be left closed and stored according to the orientation and storage markings on the outside.

Unless otherwise indicated, the packages must be stored only under the following conditions:

•Not in the open

•Dry and dust free

•Not exposed to corrosive media

•Protected against solar radiation

•Avoiding mechanical shock and vibration

•Storage and transport temperature see chapter " Supplement - Technical data - Ambient conditions"

•Relative humidity 20 … 85 %

Lifting and carrying	With instrument weights of more than 18 kg (39.68 lbs) suitable and
	approved equipment must be used for lifting and carrying.

	3.4 Accessories
PLICSCOM	The display and adjustment module PLICSCOM is used for measured
	value indication, adjustment and diagnosis.
VEGACONNECT	The interface adapter VEGACONNECT enables the connection of
	communication-capable instruments to the USB interface of a PC.
10	VEGADIS 82 • 4 … 20 mA/HART

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	3 Product description
Sun shade	The sun protection protects the device from direct sunlight and thus
	prevents overheating of the electronics. It also improves the readabil-
	ity of the display when exposed to sunlight. The sun protection can be
	used for wall and pipe mounting.

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VEGADIS 82 • 4 … 20 mA/HART

11

4 Mounting

4 Mounting

4.1General instructions

Installation position	VEGADIS 82 functions in any installation position.
Protection against mois-	Protect your instrument against moisture ingress through the following
ture	measures:

•Use a suitable connection cable (see chapter " Connecting to power supply")

•Tighten the cable gland or plug connector

•Lead the connection cable downward in front of the cable entry or plug connector

This applies mainly to outdoor installations, in areas where high humidity is expected (e.g. through cleaning processes) and on cooled or heated vessels.

Note:

Make sure that during installation or maintenance no moisture or dirt can get inside the instrument.

To maintain the housing protection, make sure that the housing lid is closed during operation and locked, if necessary.

4.2Mounting instructions

Wall mounting	The VEGADIS 82 in all available housing materials is suitable for wall
	mounting.

82 mm

(3.23")

10 mm

(0.39")

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	Fig. 4: Drilling dimensions for VEGADIS 82 for wall mounting
Carrier rail mounting	The VEGADIS 82 with plastic housing is suitable for direct carrier rail
	mounting according to EN 50022.

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12	VEGADIS 82 • 4 … 20 mA/HART

4 Mounting

1 2

Fig. 5: VEGADIS 82 with plastic housing for carrier rail mounting

1Base

2Carrier rail

The versions with aluminium or stainless steel housing for carrier rail mounting according to EN 50022 are supplied with unassembled mounting accessories. The kit consists of an adapter plate and four mounting screws M6 x 12.

The adapter plate is screwed to the base of VEGADIS 82 by the user.

1

2

3

Fig. 6: VEGADIS 82 with aluminium and stainless steel housing for carrier rail mounting

	1	Base
	2	Adapter plate with screws M6 x 12
	3	Carrier rail
Tube mounting	The VEGADIS 82 for tube mounting is supplied with unassembled
	mounting accessories. The kit consists of two pairs of mounting
	brackets and four mounting screws M6 x 100.

The mounting brackets are screwed to the base of VEGADIS 82 by the user.

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VEGADIS 82 • 4 … 20 mA/HART

13

4 Mounting

1 2 3

Fig. 7: VEGADIS 82 for tube mounting

14 screws M6 x 100

2Mounting brackets

3Tube (diameter 1" to 2")

Front panel mounting The VEGADIS 82 is also available with a plastic housing for panel mounting. The housing is fastened to the rear of the panel by means of the supplied screw clamps.

1 2 3

4

5

Fig. 8: VEGADIS 82 for panel mounting

1Inspection window

2Front panel

3Screw clamp

4Housing

5Plug connector

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			5 Connecting to power supply
		5	Connecting to power supply
		5.1 Preparing the connection
Safety instructions		Always keep in mind the following safety instructions:
		•	Carry out electrical connection by trained, qualified personnel
			authorised by the plant operator
		•	If overvoltage surges are expected, overvoltage arresters should
			be installed
		Warning:
		Only connect or disconnect in de-energized state.
Voltage supply		Power supply and current signal are carried on the same two-wire
		cable.The voltage supply range can differ depending on the sensor
		version.
		The data for power supply are specified in chapter " Technical data".
		Note:
		Power the instrument via an energy-limited circuit (power max. 100 W)
		acc. to IEC 61010-1, e.g.
		•	Class 2 power supply unit (acc. to UL1310)
		•	SELV power supply unit (safety extra-low voltage) with suitable
			internal or external limitation of the output current
		Keep in mind the following additional factors that influence the operat-
		ing voltage:
		•	Output voltage of the power supply unit can be lower under nomi-
			nal load (with a sensor current of 20.5 mA resp. 22 mA in case of
		•	fault message)
			Voltage loss on the VEGADIS 82 (see supply circuit in chapter "
			Technical data")
		You can find information on the load resistance in chapter " Technical
		data", (voltage supply of the respective sensor)
Connection cable		The instrument is connected with standard two-wire cable without
		shielding. If electromagnetic interference is expected which is above
		the test values of EN 61326-1 for industrial areas, shielded cable
		should be used.
		We generally recommend the use of shielded cable for HART mode.
		Use cable with round cross-section.To ensure the seal effect of the
		cable gland (IP protection rating), find out which cable outer diameter
		the cable gland is suitable for.Use a cable gland fitting the cable
		diameter.
		You can find an overview of the cable glands in chapter " Technical
		data".
Cable glands		Metric threads
		In the case of instrument housings with metric thread, the cable
		glands are screwed in at the factory. They are sealed with plastic
		plugs as transport protection.
VEGADIS 82 • 4 … 20 mA/HART			15

5 Connecting to power supply

				Note:
				You have to remove these plugs before electrical connection.
				NPT thread
				In the case of instrument housings with self-sealing NPT threads, it is
				not possible to have the cable entries screwed in at the factory. The
				free openings for the cable glands are therefore covered with red dust
				protection caps as transport protection.
				Note:
				Prior to setup you have to replace these protective caps with ap-
				proved cable glands or close the openings with suitable blind plugs.
				On plastic housings, the NPT cable gland or the Conduit steel tube
				must be screwed into the threaded insert without grease.
				Max. torque for all housings, see chapter " Technical data".
Cable screening and				If shielded cable is necessary, we recommend connecting the cable
grounding				shield on both ends to ground potential. In the VEGADIS 82, the
				shield should be connected directly to the internal ground terminal.
				In Ex systems it must be ensured that the grounding complies with the
				installation regulations.
				In electroplating plants as well as plants for cathodic corrosion protec-
				tion it must be taken into account that significant potential differences
				exist. This can lead to unacceptably high currents in the cable screen
				if it is grounded at both ends.

				5.2 Connection technology and steps
Connection technology				The voltage supply and signal output are connected via the spring-
				loaded terminals in the housing.
				Connection to the display and adjustment module or to the interface
				adapter is carried out via contact pins in the housing.
				Information:
				The terminal block is pluggable and can be removed from the
				electronics. To do this, lift the terminal block with a small screwdriver
				and pull it out. When reinserting the terminal block, you should hear it
				snap in.
Connection procedure				Proceed as follows:
			1.		Unscrew the housing lid
			2.		If a display and adjustment module is installed, remove it by turn-
					ing it slightly to the left
			3.		Loosen compression nut of the cable gland and remove blind
					plug
			4.		Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
					1 cm (0.4 in) of insulation from the ends of the individual wires
			5.		Insert the cable into the sensor through the cable entry
16					VEGADIS 82 • 4 … 20 mA/HART

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5 Connecting to power supply

Fig. 9: Connection steps 5 and 6

6. Insert the wire ends into the terminals according to the wiring plan

Information:

Solid cores as well as flexible cores with wire end sleeves are inserted directly into the terminal openings.In case of flexible cores without end sleeves, press the terminal from above with a small screwdriver, the terminal opening is then free. When the screwdriver is released, the terminal closes again.

You can find further information on the max.wire cross-section under

" Technical data - Electromechanical data".

7.Check the hold of the wires in the terminals by lightly pulling on them

8.Connect the shielding to the internal ground terminal, connect the external ground terminal to potential equalisation

9.Tighten the compression nut of the cable entry gland. The seal ring must completely encircle the cable

10.Reinsert the display and adjustment module, if one was installed

11.Screw the housing lid back on

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VEGADIS 82 • 4 … 20 mA/HART

17

5 Connecting to power supply

5.3Wiring plan

Wiring plan

Sensor		power supply
	HART	2
	R

(+)1	2(-)	off on	(+)3	4(-)	3
1					4

Fig. 10: Wiring plan VEGADIS 82 4 … 20 mA/HART

1 To the sensor

2 Switch for HART resistor (on = activated, off = deactivated)

3Terminal for connection of the cable screen

4Processing system/PLC/Voltage supply

Wiring plan - Panel mounting

1 2 3 4

2

1 3

Fig. 11: Wiring plan VEGADIS 82 for 4 … 20 mA sensors - panel mounting

1To the sensor

2Ground terminal in the switching cabinet for connection of the cable screen

3Processing system/PLC/Voltage supply

5.4Connection to HART systems

The following illustrations show the use of VEGADIS 82 in conjunction with one or several HART sensors.

Note:

With voltage supply via a VEGAMET controller, a HART resistor is already integrated and active there. With voltage supply via a

VEGATRENN separator, a HART resistor is already integrated and optionally active.

In such cases the HART resistor in VEGADIS 82 must be deactivated.

18	VEGADIS 82 • 4 … 20 mA/HART

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HART standard

HART multidrop

5 Connecting to power supply

=

~

2 3

1

Fig. 12: VEGADIS 82 in conjunction with an individual sensor

1Sensor

2VEGADIS 82

3Processing system/PLC/Voltage supply

	=
2	~
	3
1

Fig. 13: One VEGADIS 82 for several sensors in a multidrop system

1Sensor

2VEGADIS 82

3Processing system/PLC/Voltage supply

5.5Connection to a controller or four-wire sensor

The following illustrations show the connection of VEGADIS 82 to a

VEGAMET controller.

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VEGADIS 82 • 4 … 20 mA/HART

19

5 Connecting to power supply

Controller VEGAMET

+ -				+ -
1	2			3	4
1	2
					1
					2
					on
	%
18 17 16 15 1413 1211 10 9		8	7	6	5
				N- L1+
1	2				3

Fig. 14: Connection of VEGADIS 82 as external display to a controller

1Sensor

2Controller

3VEGADIS 82

Note:

There terminals 1 and 2 on VEGADIS 82 must be bridged (see following illustration):

		Sensor	power supply
		HART
		R
		(+)1 2(-) off on	(+)3 4(-)
		2
		1
		3 +-
	Fig. 15: Bridge between terminals 1 and 2 on the VEGADIS 82
	1	Bridge
	2	VEGADIS 82
	3	Controller
Four-wire sensor	The following illustration shows the connection of VEGADIS 82 to a
	four-wire sensor with active 4 … 20 mA output.
	Note:
	There terminals 1 and 4 on VEGADIS 82 must be bridged (see follow-
	ing illustration):

20	VEGADIS 82 • 4 … 20 mA/HART

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5 Connecting to power supply

2

	Sensor	power supply
	HART
	R
(+)1	2(-) o on	(+) 3	4(-)

1

3 +-

Fig. 16: Connection of VEGADIS 82 as external display to a four-wire sensor with active 4 … 20 mA output

1Bridge

2VEGADIS 82

3Four-wire sensor with active current output

The following illustration shows the connection of VEGADIS 82 to a four-wire sensor with active 4 … 20 mA output and an additional processing system/PLC.

2
	Sensor	power supply
	HART
	R
(+)1	2(-) o on	(+) 3	4(-)	+ -	1

3 +-

Fig. 17: Connection of VEGADIS 82 as external display to a four-wire sensors with active 4 … 20 mA output with additional processing system/PLC

1Processing system/PLC

2VEGADIS 82

3Four-wire sensor with active current output

5.6Connection example

The following illustration shows the connection of VEGADIS 82 with a 4 … 20 mA/HART sensor and processing system/PLC/voltage supply.

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VEGADIS 82 • 4 … 20 mA/HART

21

5 Connecting to power supply

4...20mA				Sensor	power supply
				HART
				R
(+)1	2(-)	5 6 7 8	(+)1	2(-) o on	(+) 3	4(-)
		4		2		1
			3

Fig. 18: Connection example 4 … 20 mA/HART sensor and processing system/

PLC

1Processing system/PLC/Voltage supply

2VEGADIS 82

3Connection cable

44 … 20 mA/HART sensor

5.7Switch-on phase

After connecting the instrument to power supply or after a voltage recurrence, the instrument carries out a self-check for approx. 10 s:

•

•

•

Internal check of the electronics

Indication of the instrument type, hardware and software version, measurement loop name on the display or PC

Indication of a status message on the display or PC

The duration of the warm-up phase depends on the connected sensor.

Then the actual measured value is displayed.You can find further information on the display in chapter " Measured value indication - Selection national language".

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22	VEGADIS 82 • 4 … 20 mA/HART