WIKA DPGT40 User Manual [en, de, es, fr]

	Operating instructions
	Betriebsanleitung
	Mode d'emploi
	Manual de instrucciones
Differential pressure transmitter,		GB
model DPGT40
Differenzdruck-Messumformer,		D
Typ DPGT40
Transmetteur de pression différentielle,		F
type DPGT40
Transmisor de presión diferencial,		E
modelo DPGT40

DELTA-trans

Differential pressure transmitter with integrated differential pressure and working pressure indication, model DPGT40

GB
	Operating instructions differential pressure transmitter
	Model DPGT40	Page	3	- 20
D
	Betriebsanleitung Differenzdruck-Messumformer
	Typ DPGT40	Seite	21	- 38
F
	Mode d’emploi transmetteur de pression différentielle
	Type DPGT40	Page	39	- 56
E
	Manual de instrucciones, transmisor de presión diferencial
	Modelo DPGT40	Página	57	- 74

© 2014 WIKA Alexander Wiegand SE & Co. KG All rights reserved. / Alle Rechte vorbehalten.

WIKA® is a registered trademark in various countries. WIKA® ist eine geschützte Marke in verschiedenen Ländern.

Prior to starting any work, read the operating instructions! Keep for later use!

Vor Beginn aller Arbeiten Betriebsanleitung lesen! Zum späteren Gebrauch aufbewahren!

Lire le mode d‘emploi avant de commencer toute opération ! A conserver pour une utilisation ultérieure !

¡Leer el manual de instrucciones antes de comenzar cualquier trabajo! ¡Guardar el manual para una eventual consulta!

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2	WIKA operating instructions differential pressure transmitter, model DPGT40

Contents

Contents

GB

1.	General information	4
2.	Safety	5
3.	Specifications	8
4.	Design and function	11
5.	Transport, packaging and storage	12
6.	Commissioning, operation	13
7.	Options and accessories	17
8.	Maintenance	18
9.	Dismounting, return and disposal	19
Appendix 1: EC declaration of conformity		20

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WIKA operating instructions differential pressure transmitter, model DPGT40

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GB ■■

1.General information

1.General information

The differential pressure transmitters described in the operating instructions have been designed and manufactured using state-of-the-art technology. All components are subject to stringent quality and environmental criteria during production.Our management systems are certified to ISO 9001 and

ISO 14001.

■■ These operating instructions contain important information on handling the instrument. Working safely requires that all safety instructions and work instructions are observed.

■■ Observe the relevant local accident prevention regulations and general safety regulations for the instrument's range of use.

■■ The operating instructions are part of the product and must be kept in the immediate vicinity of the instrument and readily accessible to skilled personnel at any time.

■■ Skilled personnel must have carefully read and understood the operating instructions prior to beginning any work.

■■ The manufacturer's liability is void in the case of any damage caused by using the product contrary to its intended use, non-compliance with these operating instructions, assignment of insufficiently qualified skilled personnel or unauthorised modifications to the instrument.

■■ The general terms and conditions contained in the sales documentation shall apply.

■■ Subject to technical modifications.

■■ Further information:
- Internet address:	www.wika.de / www.wika.com
- Relevant data sheet:	PV 17.19

Explanation of symbols

WARNING!

... indicates a potentially dangerous situation that can result in serious injury or death, if not avoided.

Information

... points out useful tips, recommendations and information for efficient and trouble-free operation.

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4	WIKA operating instructions differential pressure transmitter, model DPGT40

1.General information / 2.Safety

2.Safety

	WARNING!
		GB
	Before installation, commissioning and operation, ensure that
	the appropriate differential pressure transmitter has been
	selected in terms of design and specific measuring conditions.
	Check the compatibility with the medium of the materials
	subjected to pressure!
	In order to guarantee the measuring accuracy and long-term
	stability specified, the corresponding load limits must be
	observed.
	Only work on the gauge with the voltage disconnected.
	Non-observance can result in serious injury and/or damage to
	the equipment.
	Further important safety instructions can be found in the
	individual chapters of these operating instructions.

2.1 Intended use

The differential pressure transmitters of the DELTA-line product family are primarily used for the monitoring of low differential pressures where there are high requirements in terms of one-sided overpressure and static pressure.

Typical markets for these products are the shipbuilding industry, process heating technology, the heating, ventilation and air-conditioning industries, the water/ wastewater industry, and machine building and plant construction. For these, the main function of the measuring instruments is the monitoring of filters, compressors and pumps.

The instrument has been designed and built solely for the intended use described here, and may only be used accordingly.

The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.

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	2.Safety
	2.2 Personnel qualification
GB	WARNING!
	Risk of injury should qualification be insufficient!
	Improper handling can result in considerable injury and damage
	to equipment.
	■■ The activities described in these operating instructions
	may only be carried out by skilled personnel who have the
	qualifications described below.

Skilled personnel

Skilled personnel are understood to be personnel who, based on their technical training, knowledge of measurement and control technology and on their experience and knowledge of country-specific regulations, current standards and directives, are capable of carrying out the work described and independently recognising potential hazards.

2.3 Special hazards

WARNING!

For hazardous media such as oxygen, acetylene, flammable or toxic gases or liquids, and refrigeration plants, compressors, etc., in addition to all standard regulations, the appropriate existing codes or regulations must also be followed.

WARNING!

Residual media in dismounted measuring instruments can result in a risk to persons, the environment and equipment.

Take sufficient precautionary measures.

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2.Safety

2.4 Labelling / safety marks
Product label	GB
Output signal 1)
Measuring
range
Output signal
Power supply
Pin assignment	Date of
	manufacture

1)A = output signal 4 ... 20 mA, 2-wire

E = output signal 4 ... 20 mA, 2-wire, ATEX Ex II 2G Ex ib IIC T4 / T5 / T6 B = output signal 0 ... 20 mA, 3-wire

F = output signal 0 ... 10 V, 3-wire

Explanation of symbols

Before mounting and commissioning the instrument, ensure you read the operating instructions!

CE, Communauté Européenne

Instruments bearing this mark comply with the relevant European directives.

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3.Specifications

3.Specifications

		Specifications	DELTA-trans model DPGT40
GB
		Mechanical data
		Nominal size	Differential pressure indication:Ø 100 mm
			Working pressure indication:Ø 22 mm
		Accuracy class	Differential pressure indication:≤ 2.5 % of span (option
			≤ 1.6 %)
			Working pressure indication: 4
		Scale ranges (EN 837)	Differential pressure:0 ...0.25 to 0 ...10 bar
			Working pressure: 0 ... 25 bar
		Max.working pressure (stat.)	25 bar
		Overpressure safety	Either side max. 25 bar
		Permissible temperatures	Ambient:-10 ...+70 °C, medium:-10 ...+90 °C
			Storage: -40 ... +70 °C
		Ingress protection	IP 54 per EN 60529 / IEC 60529
		Media chamber (wetted)	Aluminium, EN AC–Al Si9Cu3(Fe), black lacquered
		Process connections (wetted)	2 x G 1/4 female, lower mount (LM), in-line, centre
			distance 26 mm
		Pressure elements (wetted)	Differential pressure:Compression springs from stain-
			less steel 1.4310 and separating diaphragm from FPM/
			FKM (option:NBR)
			Working pressure: Bourdon tube from Cu-alloy
		Transmission parts (wetted)	Stainless steel 1.4301, 1.4305, 1.4310, FPM/FKM (op-
			tion: NBR)
		Sealings (wetted)	FPM/FKM (option:NBR)
		Movement	Copper alloy, wear parts argentan
		Dial	Differential and working pressure indication:White dial,
			black lettering
		Pointer	Differential and working pressure indication:Blue pointer
		Zero adjustment for differential	Via screw in the dial
		pressure indication
		Case	Aluminium, EN AC–Al Si9Cu3(Fe), black lacquered
		Window	Plastic
		Weight	approx. 1.3 kg

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3.Specifications

Electrical data

Power supply UB

Influence of power supply

Permissible residual ripple

Output signal

Permissible max. load RA for variant 1 - 3

Effect of load (variant 1 - 3)

Electrical zero point

■■ Long-term stability of electronics

■■ Electr. output signal Linearity

Electrical connection

Ingress protection

EMC directive

	DCV	12 < UB ≤ 30
				GB
	% FS/10V	≤ 0.1
	% ss	≤ 10
	Variant 1 4		… 20 mA, 2-wire, passive, per NAMUR NE 43
	Variant 3	0	... 20 mA, 3-wire
	Variant 4	0	... 10 V, 3-wire
		RA ≤ (UB - 12 V)/0.02 A with RA in Ohm and UB in
		Volt, however max.600 Ω
	% FS	≤ 0.1
		through a jumper across terminals 5 and 6 (see
		operating instructions)
	% FS/a	< 0.3

≤2.5 % of the measuring span (option ≤ 1.6 %)

%of span ≤ 2.5 % (option ≤ 1.6 %), terminal method

via angular connector, 180° rotatable, wire protection, cable gland M20 x 1.5, incl. strain relief, connection cable: Outer diameter 7 ... 13 mm, conductor cross-section 0.14 ... 1.5 mm2, temperature resistance up to 70 °C

Angular connector:IP 65 per EN 60529 / IEC 60529

2007/108/EC interference emission (limit class B) and immunity to EN 61 326-1

As a power supply, an unstabilised DC power supply is sufficient in the range of the specified limits.It is important to ensure that the applied power supply is at least greater than the maximum required voltage drop from the external display and evaluation units; i.e. the voltage at the pressure transmitter must not fall below 10 V.

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3.Specifications

Designation of terminal connectors

The exact pin assignments can be found in the following drawings. In addition, the GB pin assignment, output signal and the required power supply are stated on the

product label.

The following diagram shows the standard terminal assignment. For customerspecific designs, the terminal assignment on the product label must be followed.

2-wire system

4 … 20 mA

Earth, connected to case 1)

Power supply

UB+/I+

0V/GND

Evaluation

(display)

Terminals 3 and 4: for internal use only

Terminals 5 and 6: reset zero point

3-wire system

0 … 20 mA, 4 … 20 mA and 0 ...10 V

Earth, connected to

case 1)

Power supply

UB+

Sig+

0V/Sig-/GND

Evaluation

(display) 1) This connection must not be used for equipotential bonding. The

instrument must be incorporated in the equipotential bonding via the process connection.

Explanation of the terminal assignments used:

UB+	Positive terminal of power supply
0V/Sig-/GND	Negative terminal of power supply and output signal
Sig+	Positive terminal of output signal
I+	Output signal

For further specifications see the corresponding product label,WIKA data sheet and the order documentation.

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4.Design and function

4.Design and function

4.1 Description
	GB

Pressures p1 and p2 act on the media chambers and , which are separated by an elastic diaphragm (1).

The differential pressure (Δp = p1 - p2) leads to an axial deflection of the diaphragm against the measuring range springs (2).

The deflection, which is proportional to the differential pressure, is transmitted to the movement (4) in the indicating case via a pressure-tight and low friction rocker arm (3).

A magnet (5), fixed to the rear of the movement, affects the electromagnetic field of the HALL sensor. The signal that results from this is converted to a standardised current output signal by the signal conditioning board (6).

Overpressure safety is provided by metal bolsters (7) resting against the elastic diaphragm.

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		

			14077606.01

		


4.2 Scope of delivery

Cross-check scope of delivery with delivery note.

WIKA operating instructions differential pressure transmitter, model DPGT40

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5.Transport, packaging and storage

5.Transport, packaging and storage

GB 5.1 Transport

Check the transmitter for any damage that may have been caused by transport. Obvious damage must be reported immediately.

5.2 Packaging

Do not remove packaging until just before mounting.

Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site, sending for repair).

5.3 Storage

Permissible conditions at the place of storage

Storage temperature: -40 ... +70 °C

In order to prevent damage, the following points should be noted for the storage of the pressure transmitters:

■■ Leave the measuring instruments in their original packaging

■■ Following any possible removal of the measuring instruments, e.g. for testing, the instrument should again be stored in its original packaging

Avoid exposure to the following factors:

■■ Direct sunlight or proximity to hot objects

■■ Mechanical vibration, mechanical shock (putting it down hard)

■■ Soot, vapour, dust, humidity and corrosive gases

■■ Potentially explosive environments, flammable atmosphere

WARNING!

Before storing the instrument, any residual media must be removed. This is of particular importance if the medium

is hazardous to health, e.g. caustic, toxic, carcinogenic, radioactive, etc.

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6.Commissioning, operation

6.Commissioning, operation

6.1 Mechanical connection

GB

■■ In accordance with the general technical regulations for pressure gauges (e.g.

EN 837-2 “Selection and installation recommendations for pressure gauges”).

■■ Mounting of the pressure connections according to affixed symbols, high pressure, low pressure

■■ Mounting by means of: - rigid measuring line or

- wall mounting with available mounting links

■■ Process connections 2 x G 1/4 female, lower mount (LM), in-line, centre distance 26 mm, operating position NL 90 (nominal position) per DIN 16257 (i.e.vertical dial), design the threads of the pressure connection in accordance with EN 837-3 (section 7.3.2).

■■ Prior to the installation of the pressure gauge, clean the measuring lines thoroughly by tapping and blowing or rinsing

■■ Protect measuring instruments from contamination and high temperature changes!

■■ The pressure gauge must be mounted free from vibration and should be aligned so that it is easy to read. It is recommended that an isolation device is interposed between the pressure tapping point and the pressure gauge, which will enable the replacement of the pressure gauge and a zero point check while the plant is running. The instruments should be protected against coarse dirt and wide fluctuations in ambient temperature.

■■ Correct sealing of the connections must be made using suitable flat gaskets, sealing rings orWIKA profile sealings.In order to orientate the gauge so that the on-site display can be read as well as possible, a clamp socket or union nut should be used. When screwing on and unscrewing the pressure gauges they should not be gripped by the case, but rather only on the spanner flats of the connection!

Wall mounting

Mounting using three integrally cast mounting lugs

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6.Commissioning, operation

Measuring assemblies

Proven measuring assemblies for various types of media. The assemblies that are GB particularly recommended for use are shown below.

Filling of		liquid media			gaseous media
the measu-	liquid	liquid with	vapour	gaseous	partially	completely
ring line		vapour	only		condensed	condensed
	conden-		“liquefied		(damp)	Steam
Examples		boiling liquid		dry air	moist air
	sate		gases”		flue gases
Pressure
gauge
above the
tapping
point
Pressure
gauge
below the
tapping
point

Dimensions in mm

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14	WIKA operating instructions differential pressure transmitter, model DPGT40

6.Commissioning, operation

Measuring assemblies

The preferred measuring assemblies for various possible applications are

specified in DIN 19216. GB

The following schematic diagram shows a recommended assembly for liquid media.As throttling devices, differential pressure transducers should be provided in accordance with DIN 1952 (issue 07.82), now replaced by EN 5167/1.

The differential pressure lines must be made from metal, their bore must not be less than 4 mm and the effective length between the valve manifold and the differential pressure transmitter must be at least 500 mm.

In addition, the length and the bore of the pressure lines should be such that, with cold lines, the response time of the pressure gauge is not more than 5 seconds.

The connections of the differential pressure lines must be welded, brazed or screwed using metal sealing elements.

Shut-off valves in differential pressure lines must only be operated using tools.

Differential pressure transducer

(throttling device in the process line)

Differential pressure line

Shut-off valves (valve manifold)

Differential pressure instrument

(DELTA-trans)

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Safety instructions for installation

■■ Follow the installation and safety instructions within the operating instructions.

■■ Install instruments in accordance with the manufacturer's instructions and the valid standards and regulations.

■■ The instruments do not provide for incorporated overcurrent protectors!

Once the pressure connection and the electrical connections have been made, the pressure transmitters are ready for immediate use.

Commissioning

During the commissioning process pressure surges must be avoided at all costs. Open the shut-off valves slowly.

WIKA operating instructions differential pressure transmitter, model DPGT40

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	6.Commissioning, operation
	6.2 Electrical zero point (4 mA)
	The zero point adjustment is made by an adjustment screw in the front, which,
GB	depending on the instrument model, is accessible by loosening the window or the
	locking screw. By turning the adjustment screw using a screwdriver the desired zero
	point is set.
	If the mechanical zero point has been altered via the		
	adjustment screw, the electrical zero point must be
	matched again to the mechanical one.
	For this, the differential pressure transmitter must first be		
	depressurised.
	Remove the entire cable cover on the right-hand side
	of the transmitter. To do this, undo the screw  on the		
	top of the cable cover cap  completely with a slotted
	screwdriver (0.6 x 3.5 mm).Remove the screw.Pull the
	cable cover , along with the socket insert , out from the
	cable socket baseplate .
	This isolates the transmitter from the voltage supply.
	Take the cable cover cap  from the cable cap  and		
	push the socket insert	 out, downwards, completely
	through the cable cap	.
	Bridge contacts 5 and 6 on the socket insert with a		
	short length of wire, stripped at both ends (maximum
	permissible resistance 30 Ω).
	Reassemble the connector in the reverse order. Insert the
	connector, with the piece of wire mounted, into the pin
	insert . This remakes the voltage supply.
	Within a max. of 30 seconds, the new zero point will be
	saved within the electronics.During this time, the current in		
	the loop will rise to 9.5 mA.
	The new zero point is maintained, even with a loss of
	power, for an extended period.
	Once more, disconnect the connector in the order		
	described above and remove the piece of wire. After again
	assembling the connector, the electrical output signal will
	once more match the display of the mechanical pointer.		 Screw
	In order that the ingress		 Cable cover cap
			 Cable cover
	protection is maintained, the		 Socket insert
	seals  must be refitted.		 Cable socket baseplate
			 Sealings

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6.Commissioning, operation / 7.Options and accessories

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6.3 Setting up a voltage supply

The voltage supply is made via a power supply unit or a control unit which

provides the energy limitation. GB The power supply for the pressure transmitter must be made via an energy-

limited electrical circuit in accordance with section 9.3 of UL/EN/IEC 61010-1, or an LPS to UL/EN/IEC 60950-1, or class 2 in accordance with UL1310/UL1585 (NEC or CEC).The power supply must be suitable for operation above 2,000 m should the pressure transmitter be used at this altitude.

7.Options and accessories

7.1 4-way valve manifold

■■ Isolation of the and process lines for removing or testing the measuring instrument without interrupting the running process operation.

Protection of the instrument against excessive overpressure loading, such as in pressure tests and undefined operating

conditions (including intermittent shutdown).

■■ Pressure compensation for zero point checking with running processes, and avoiding one-sided overpressure loading during start-up and operation phases (with opened pressure compensating valve).

■■ Venting the measuring lines with liquid media and flushing of the measuring lines, in order to remove contamination.

Specifications for handling

■■ Sequence of operations to start measurement

Pressure compensating valve

Shut-off valveside

Shut-off valve	Vent valve
side

1.Open the pressure compensating valve (middle valve spindle)

2.Open the shut-off valve for the negative media chamber ( , right-hand valve) and the positive media chamber ( , left-hand valve)

3.Close the pressure compensating valve

■■ Sequence of operations to flush/vent the measuring lines

1.Start:Open the shut-off valve for the and media chamber, open the pressure compensating valve and vent valve

2.Finish: Close the pressure compensating valve and vent valve

WIKA operating instructions differential pressure transmitter, model DPGT40

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7.Options and accessories / 8.Maintenance

■■ Sequence of operations to finish measurement (also temporary shutdown)

1. Open the pressure compensating valve

GB 2.Close the shut-off valve for the and media chamber

■■ Sequence of operations to dismount the measuring instrument with a running process

1.Close the shut-off valve for the and media chamber

2.Open the vent valve

7.2Panel mounting flange

Cutout

Panel

14078276.01

8.Maintenance

The instruments are maintenance-free.

The indicator and switching function should be checked once or twice every year. For this the instrument must be disconnected from the process to check with a pressure testing device.

Repairs must only be carried out by the manufacturer.

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9.Dismounting, return and disposal

9.Dismounting, return and disposal

WARNING!	GB
Residual media in dismounted measuring instruments can result
in a risk to persons, the environment and equipment.
Take sufficient precautionary measures.
9.1 Dismounting
Only disconnect the measuring instrument once the system has been depressur-
ised and the power disconnected!
If necessary, the measuring line must have strain relief.
9.2 Return
Wash or clean the dismounted measuring instrument before returning it, in order
to protect personnel and the environment from exposure to residual media.
9.3 Disposal
Incorrect disposal can put the environment at risk. Dispose of instrument
components and packaging materials in an environmentally compatible way and
in accordance with the country-specific waste disposal regulations.

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Appendix 1: EC declaration of conformity

GB

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Inhalt

Inhalt

1.	Allgemeines	22	D
2.	Sicherheit	23
3.	Technische Daten	26
4.	Aufbau und Funktion	29
5.	Transport, Verpackung und Lagerung	30
6.	Inbetriebnahme, Betrieb	31
7.	Optionen und Zubehör	35
8.	Wartung	36
9.	Demontage, Rücksendung und Entsorgung	37
Anlage 1: EG-Konformitätserklärung		38

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1.Allgemeines

1.Allgemeines

■■ Die in der Betriebsanleitung beschriebenen Differenzdruck-Messumformer werden nach dem aktuellen Stand der Technik konstruiert und gefertigt. Alle Komponenten unterliegen während der Fertigung strengen Qualitäts-

D und Umweltkriterien.Unsere Managementsysteme sind nach ISO 9001 und ISO 14001 zertifiziert.

■■ Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit dem Gerät.

Voraussetzung für sicheres Arbeiten ist die Einhaltung aller angegebenen Sicherheitshinweise und Handlungsanweisungen.

■■ Die für den Einsatzbereich des Gerätes geltenden örtlichen Unfallverhütungsvorschriften und allgemeinen Sicherheitsbestimmungen einhalten.

■■ Die Betriebsanleitung ist Produktbestandteil und muss in unmittelbarer Nähe des Gerätes für das Fachpersonal jederzeit zugänglich aufbewahrt werden.

■■ Das Fachpersonal muss die Betriebsanleitung vor Beginn aller Arbeiten sorgfältig durchgelesen und verstanden haben.

■■ Die Haftung des Herstellers erlischt bei Schäden durch bestimmungswidrige

Verwendung, Nichtbeachten dieser Betriebsanleitung, Einsatz ungenügend qualifizierten Fachpersonals sowie eigenmächtigerVeränderung am Gerät.

■■ Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufsunterlagen. ■■ Technische Änderungen vorbehalten.

■■ Weitere Informationen:

- Internet-Adresse:	www.wika.de / www.wika.com
- zugehöriges Datenblatt:	PV 17.19

Symbolerklärung

WARNUNG!

… weist auf eine möglicherweise gefährliche Situation hin, die zum Tod oder zu schweren Verletzungen führen kann, wenn sie nicht gemieden wird.

Information

… hebt nützliche Tipps und Empfehlungen sowie Informationen für einen effizienten und störungsfreien Betrieb hervor.

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1.Allgemeines / 2.Sicherheit

2.Sicherheit

WARNUNG!

Vor Montage, Inbetriebnahme und Betrieb sicherstellen, dass der richtige Differenzdruck-Messumformer hinsichtlich Ausfüh-

rung und spezifischen Messbedingungen ausgewählt wurde. D

Verträglichkeit der druckbelasteten Werkstoffe mit dem Messstoff prüfen!

Die Belastungsgrenzen sind einzuhalten, um die Messgenauigkeit und die Lebensdauer zu gewährleisten.

Alle Arbeiten dürfen nur im spannungslosen Zustand erfolgen.

Bei Nichtbeachten können schwere Körperverletzungen und/ oder Sachschäden auftreten.

Weitere wichtige Sicherheitshinweise befinden sich in den einzelnen Kapiteln dieser Betriebsanleitung.

2.1 Bestimmungsgemäße Verwendung

Die Differenzdruck-Messumformer der Produktfamilie DELTA-line werden vorzugsweise zur Überwachung von niedrigen Differenzdrücken mit hohen Anforderungen an einseitige Überlast und statischem Druck eingesetzt.

Typische Märkte dieser Produkte sind die Schiffsindustrie, Prozesswärmetechnik,

Heizungs-, Klima-, Lüftungstechnik, Wasser-/Abwasserindustrie und Maschinenund Anlagenbau. Hier ist die Hauptaufgabe der Messgeräte die Überwachung von Filtern, Kompressoren und Pumpen.

Das Gerät ist ausschließlich für den hier beschriebenen bestimmungsgemäßen

Verwendungszweck konzipiert und konstruiert und darf nur dementsprechend verwendet werden.

Ansprüche jeglicher Art aufgrund von nicht bestimmungsgemäßerVerwendung sind ausgeschlossen.

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