WIKA 7 Series Manual de usuario

Pressure gauges Model 7 per directive 94/9/EC (ATEX)

with inductive alarm sensors Model 831

Druckmessgeräte Typ 7 nach Richtlinie 94/9/EG (ATEX)

mit Induktiv-Grenzsignalgeber Typ 831

Manomètres Type 7 selon directive 94/9/EG (ATEX)

avec seuil d'alarme inductif Type 831

II 2 GD c TÜV 03 ATEX 2304 X

Model 732.51.100 per ATEX with

inductive alarm sensors Model 831.1

Model 732.14.100 per ATEX with

inductive alarm sensors Model 831.12

Operating Instructions

Betriebsanleitung

Instructions d'utilisation

2WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

GB Operating instructions Model 7 per ATEX

with Model 831 Page 1-23

Betriebsanleitung Typ 7 nach ATEX

mit Typ 831 Seite 24-44

Instructions d'utilisation Type 7 selon ATEX

avec Type 831 Page 45-51

3WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

Contents

1. Safety instructions 4

2. Description 4

3. Technical data and use in accordance with

intended use 5

4. Alarm contacts 7

5. Commissioning 9

6. Maintenance and servicing / cleaning 9

7. Repairs 9

Enclosure 1: Declaration of conformity for

Models 73X.51 and 73X.31 10

Enclosure 2: Declaration of conformity for

Typen 73X.14 and 76X.14 11

Enclosure 3: EC-type examination certificate (gases)

for slot-type initiators types SJ and SC

(WIKA-Model 831) 12-14

Enclosure 4: EC-type examination certificate (gases)

for SN-sensors types NJ and SJ

(WIKA-Model 831-SN / S1N) 15-18

Enclosure 5: EC-type examination certificate (dust)

for SN-proximity sensors types CB, CC, ... SJ

(WIKA-Model 831 and 831-SN / S1N) 19-23

Contents

4WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

Caution

1. Safety instructions

The appropriate national safety regulations (i.e. VDE 0100 /

EN 60 079-14 / EN 837-2) must be observed when installing,

putting into operation and running these instruments.

TDo not work on gauge while under voltage

TSerious injuries and/or damage can occur should the appropriate

regulations not be observed

€TOnly appropriately qualified persons should work on these

instruments

1. Safety instructions / 2. Description

2. Description

TThe pressure gauges measure the pressure by means of resilient bourdon

tube measuring elements

TThe measuring features are in accordance with the standards EN 837-3 and

DIN 16 085

TIn addition the model 43X.31 also meet the demands made on safety pattern

pressure gauges outlined in the standard EN 837-3 (user protection)

The built-in electrical alarm contacts are non-contact slot-type inductive

proximity sensors, which are supplied from control units with circuits that are

certified to be intrinsically safe. When the adjustable set points are reached,

their output circuits will be opened or closed.

TAs a standard slot sensors model 831 are used according to EC-type

examination certificate PTB 99 ATEX 2219 X (see enclosure 3) and

ZELM 03 ATEX 0128 X (see enclosure 5)

TSN sensors models 831-SN and -S1N according to PTB 00 ATEX 2049 X

(see enclosure 4) and ZELM 03 ATEX 0128 X (see enclosure 5) are special

designs with safety features (that are not relevant to explosion protection)

for special applications

The connection values of the switches are in accordance with EN 60 947-5-6

("NAMUR").

5WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

3. Technical data and use in accordance with intended use

Working pressure

Model 73X.51/31: Steady: full scale value

Fluctuating: 0.9 x full scale value

Table 1: Static pressure / Overpressure safety maximum in bar

Model 73X.14: Steady: full scale value

Fluctuating: 0.9 x full scale value

Overpressure safety: 40, 100; 250 or 400 bar

Pressure connection

TAccording to the general technical regulations for pressure gauges,

respectively (i.e. EN 837-2 "Selection and installation recommendations for

pressure gauges").

When screw-fitting the gauges the force required for sealing must not be

applied through the case or terminal box but, using a suitable tool, only through

the spanner flats provided for this purpose at the square of the connector.

Temperature effect

When temperature of the pressure element deviates from reference temperature

(+20 °C): max. ±0.5 %/10 K of true scale value

IP Ingress protection

IP 54 per EN 60 529 / IEC 60 529

(with liquid filling IP 65)

Pressure ranges Static pressure Overpressure safe

either side

Standard Option Standard Option

0 ... 16 to 0 ... 40 mbar 2.5 6 2.5 -

0 ... 60 to 0 ... 250 mbar 6 10 2.5 6

0 ... 400 mbar 25 40 4 40

0 ... 0.6 bar 25 40 6 40

0 ... 1 bar 25 40 10 40

0 ... 1.6 bar 25 40 16 40

0 ... 2.5 to 0 ... 25 bar 25 40 25 40

6WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

3. Technical data and use in accordance with intended use

Operating Temperature

Ambient (in Ex-operation): -20 ... +60 °C

Medium: The permissible medium temperature does not only depend on the

instrument design, but also on the ignition temperature of the

surrounding gases, vapours or dust. Both aspects have to be

taken into account. For permissible maximum medium

temperatures see table 1.

Attention! With gaseous substances the temperature may increase as a result

of the compression temperature. In such cases the pressure change rate has to

be slowed down resp. the permissible medium temperature has to be reduced.

Table 2: Permissible medium temperature

Temperature class of Permissible maximum medium

the ambient atmosphere temperature (in the pressure system)

(ignition temperature)

T 6 ( 85 °C < T ≤100 °C) +70 °C

T 5 (100 °C < T ≤135 °C) +85 °C

T 4 (135 °C < T ≤200 °C) +100 or +120 °C 1)

T 3 (200 °C < T ≤300 °C) +100 or +185 °C 1)

T 2 (300 °C < T ≤450 °C) +100 or +200 °C 1)

T 1 (T > 450 °C) +100 or +200 °C 1)

1) The higher values apply only to special versions with higher permissible media temperatures.

Installation

TNominal position per EN 837-3 / 9.6.6 Figure 7: 90° ( )

TPressure connection: lower mount (LM)

TIn order to ensure that with model 73X.31 pressure can be safely and reliably

vented through the case back, a distance of at least 25 mm has to remain

free behind the case!

TIn order to avoid any additional heating, the instruments must not be

exposed to direct solar irradiation while in operation!

TWith filled versions the ventilating valve at the top of the case must be

opened prior to commissioning!

7WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

4. Alarm contacts

EC-type examination certificates

TStandard version Model 831.XX

PTB 99 ATEX 2219 X (enclosure 3) and ZELM 03 ATEX 0128 X (enclosure 5)

Depending on the number of switches and on the case diameter either

Model SJ2-N... or Model SJ3.5-...-N... is used.

TSafety pattern version Models 831.XX - SN or - S1N

PTB 00 ATEX 2049 X (enclosure 4) and ZELM 03 ATEX 0128 X (enclosure 5)

Depending on the number of switches and on the case diameter either

Models SJ 2-SN..., SJ 2-S1N..., SJ 3.5-SN.. or SJ 3.5-S1N... are used.

The built-in sensor type is stated on the product label of the pressure gauge.

Wiring details

TThe electrical connections should be made by qualified electricians

TConnection of the switches via screw terminals in the terminal box

TConductor cross section max. 1.5 mm

TThe terminal assignment is stated on the connection plate at the

pressure gauge

3. Technical data ... / 4. Alarm contacts

Permissible vibratory stress at the mounting location

TAs a matter of principle the instruments should only be mounted at locations

without vibratory stresses

TWhere required, a decoupling from the mounting location can be achieved

e.g. by a flexible connecting line from the measuring point to the pressure

gauge and mounting via a measuring instrument bracket.

TIf this is not possible, the following limits must not be exceeded:

Dry gauges: Frequency range < 150 Hz

(Model 732) Acceleration < 0.7 g (7 m/s2)

Liquid-filled gauges: Frequency range < 150 Hz

(Model 733) Acceleration < 4 g (40 m/s2)

The liquid filling has to be checked on a regular basis.

The liquid level must not drop below 75% of the gauge diameter.

8WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

The permissible limits for Ui, Iiand Piof the intrinsically safe supply circuits

depend on the sensor type. They can be taken from the corresponding EC-type

examination certificates. (The sensor type is stated on the connection plate of

the pressure gauge.)

Suitable switch amplifiers are e.g.:

4. Alarm contacts

Circuit Sensor type Model designation EC-type exami- WIKA-

(s. Ex-certific.) Fa. Pepperl & Fuchs nation certificate Model

Model 1 standard KFD2-SR2-Ex1 PTB 00 ATEX 2080 904.31

standard KFD2-SR2 Ex2 PTB 00 ATEX 2080 904.32

Model 2 standard KHA6-SR2-Ex1 PTB 99 ATEX 2141 904.28

standard KHA6-SR2-Ex2 PTB 99 ATEX 2141 904.29

SN-sensors KFD2-SH-Ex1 PTB 00 ATEX 2042 904.33

SN-sensors KHA6-SH-Ex1 PTB 00 ATEX 2043 904.30

The desired value indicators for the alarm contacts are adjustable over the full

range of the instrument. Switching points shall be set in the ranges between

10 % und 90 % of the scale, to ensure switching accuracy and long life of the

mechanical measuring system.

Electromagnetic compatibility

EMC according to EN 60 947-5-2.

The instruments are to be protected against strong electromagnetic fields.

To set desired value indicator

The desired value indicators for the alarm contacts are adjustable over the

adjustment lock in the window with the aid of adjustment key (included in deli-

very; to be found on standard gauges on the outside edge of the junction box).

Adjustment key

removable

Desired value

indicators

(red set pointer)

Adjustment lock

9WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

5. Commissioning ... 7. Repairs

5. Commissioning

During the commissioning process pressure peaks must be absolutely avoided.

Open the shut-off valves slowly.

6. Maintenance and servicing / cleaning

The instruments require no maintenance or servicing.

The indicator and switching function should be checked once or twice every

12 months. The instrument must be disconnected from the process to check

with a pressure testing device.

The instruments should be cleaned with a damp cloth moistened with soap

solution. For cleaning inside the instrument the mains power supply should be

disconnected by means of the plug box. It must be ensured that all the parts are

dry before the power is switched on again.

7. Repairs

Repairs are to be only carried out by the manufacturer or appropriately trained

personnel.

For further details see WIKA data sheet AC 08.01 or the data sheet for the

respective basic gauge.

10 WIKA Operating instructions pressure gauges Model 7 with 831 per ATEX

2080250 02/2004 GB/D/F

Konformitätserklärung

Richtlinie 94 / 9 / EG (ATEX)

Wir erklären in alleiniger Verantwortung, dass

nachstehend genannte Produkte, Differenzdruck-

messgeräte mit Plattenfeder, gemäß gültigem

Datenblatt mit der Richtlinie übereinstimmen und

dem Konformitätsbewertungsverfahren

'Interne Fertigungskontrolle'

unterzogen wurden.

WIKA-Typen / WIKA models

73X.51 / 73X.31

Die Unterlagen werden aufbewahrt

unter der Aktennummer 8000550751

bei der benannten Stelle 0032

TÜV NORD CERT

Am TÜV 1

D-30519 Hannover

Die Geräte werden gekennzeichnet mit

Angewandte Normen:

EN 13463-1 Allgemeine Bestimmungen

prEN 13463-5 Konstruktive Sicherheit 'c'

Die eingebauten Grenzsignalgeber 831 sind EG-

baumustergeprüft. Die Nummern der Prüfbeschei-

nigungen und die Kennzeichnung

Declaration of Conformit

Directive 94 / 9 / EC (ATEX)

We declare under our sole responsibility that the

products mentioned below, differential pressure

gauges with diaphragm element, according to the

current data sheet correspond with the directive and

were subjected to the conformity assessment

procedure

'Internal Control of Production'.

Datenblätter / data sheets

PM 07.05

The dossier is retained

under file nr. 8000550751

at the notified body 0032

TÜV NORD CERT

Am TÜV 1

D-30519 Hannover

The gauges are marked with

II 2 GD c

Applied standards:

EN 13463-1 General requirements

prEN 13463-5 Constructional safety 'c'

The built-in alarm contacts 831 are EC-type-certified.

Numbers of certificates and marking

PTB 99 ATEX 2219 X bzw./resp. PTB 00 ATEX 2049 X II 2 G EEx ia IIC T6

und/and ZELM 03 ATEX 0128 X II 1 D Ex iaD 20 T...°C

Für das komplette Gerät liegt die Konformitäts- For the complete gauge the statement of conformity

aussage TÜV 03 ATEX 2304 X vor. TÜV 03 ATEX 2304 X is available.

WIKA Alexander Wiegand GmbH & Co. KG

Geschäftsbereich Prozessinstrumentierung / Division Process Instrumentation

Klingenberg, 21.10.2003

Armin Hawlik Werner Hünerth

Leiter Logistikzentrum 2 Leiter Qualitätssicherung

Manager Production and Logistics Quality Assurance Manager

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