WIKA 732.15.100 User Manual [en, de, fr, it]

Operating instructions

Cryo Gauge

Betriebsanleitung Mode d'emploi Manuale d'uso

Dierential pressure gauge

Models 712.15.100, 732.15.100

Dierenzdruckmessgerät

Typen 712.15.100, 732.15.100

Manomètre pour pression diérentielle

Types 712.15.100, 732.15.100

Manometro dierenziali

Modelli 712.15.100, 732.15.100

Model 712.15.100 with optional transmitters for dierential

pressure and working pressure

Operating instructions for dierential pressure gauges

Models 712.15.100, 732.15.100 Page 3-19

Betriebsanleitung für Dierenzdruckmessgeräte

Typen 712.15.100, 732.15.100 Seite 21-37

Mode d’emploi pour manomètres pour pression diérentielle

Types 712.15.100, 732.15.100 Page 35-47

Manuale d‘uso per manometri dierenziali

Modelli 712.15.100, 732.15.100 Pagine 53-66

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 !

Prima di iniziare ad utilizzare lo strumento, leggere il manuale d‘uso! Conservare per future consultazioni!

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

11592011.04 06/2014 GB/D/F/I

Contents

1. Safety 4

2. General information 4

3. Installation 4

4. Dierential pressure gauge 6

5. Valve manifold with working pressure gauge (optional) 8

6. Application note 9

7. Adapter for process connection (optional) 9

8. Transmitter for level measurement (optional) 9

9. Transmitter for working pressure indication (optional) 13

10. Switch contacts (optional) 14

11. Maintenance 16

12. Disposal 16

Enclosure 1: EC-type examination certicate (Ex approval) for turning angle transmitter type 892.44 17

Information This symbol provides you with information, notes and tips.

Warning! This symbol warns you against actions that can cause injury to people or damage to the instrument.

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

1. Safety ... 3. Installation

1. Safety

WARNING!

Before installation, commissioning and operation, ensure that the

appropriate dierential pressure gauge has been selected in terms of measuring range, design and specic measuring conditions.

Only work on the gauge with the voltage disconnected.

Non-observance can result in serious injury and/or damage to equipment.

Only appropriately qualied skilled personnel should work on these instruments.

2. General information

These operating instructions are based upon the following:

 EN 837-2: Selection and installation recommendations for pressure gauges

 Data sheet PM 07.29: Dierential pressure gauges models 712.15.100, 732.15.100

 Data sheet PM 02.01, PM 02.02: Bourdon tube pressure gauges

3. Installation

The installation of the dierential pressure gauge should be carried out in accordance with the

installation recommendations for pressure gauges per EN 837-2 /7.

 Prior to the installation of the pressure gauge, the pipes should be thoroughly cleaned

 The pressure gauge should be installed and operated such as to avoid exposure to

vibration. Mounting by means of - rigid tailpipe and/or

- 4 M8 threaded mounting holes incorporated in the body

 The pressure gauges should be protected against contamination and high temperature

uctuations

 The maximum permissible media/ambient temperature must not be exceeded

Fitting of the pressure connections as per the j and i symbols

higher pressure ⇒ bottom pressure (p

lower pressure ⇒ working pressure/overriding pressure (p

= pFL + p

)

(with pFL = hydrostatic pressure of liquid = ρ • g • h)

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

11592011.04 06/2014 GB/D/F/I

3. Installation

Types of installation for level measurement

Standard in cryogenic equipment 2 examples with condensate formation

(liquid gases)

Filling hole

Δp Δp Δp

Drain pipe Drain pipe

i ji j

Condensate

Filling hole

Condensate

⇔

Constant level vessel

i j

Wall mounting

Installation/fastening to the 4 mounting holes M8 / 2 xing holes Ø 8.5

Mounting holes M8

Filling hole

hhh

Drain pipe

Pressure connections G 1/4

Pressure equalising valve

Isolating valve

Ø 8.5 xing h oles

Pressure connections G 1/4

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

Tes t connection

Isolating valve

11592649.01

3. Installation / 4. Dierential pressure gauge

Option

Panel mounting

Panel cut-out

Panel

4. Dierential pressure gauge

The measuring range of the dierential pressure gauge can, depending on the particular measurement system used, be adjusted within the limits given in the previous specications

table). Ideally, this adjustment should be made on a test bench, though it can also be carried out at the measuring point using a hand test pump.

11563843.01

Measuring range limits

Measuring cell Adjustable measuring ranges

from to

60 mbar 0 ... 40 mbar - 0 ... 60 mbar

90 mbar 0 ... 60 mbar - 0 ... 90 mbar 120 mbar 0 ... 80 mbar - 0 ... 120 mbar

165 mbar 0 ... 110 mbar - 0 ... 165 mbar

240 mbar 0 ... 160 mbar - 0 ... 240 mbar 330 mbar 0 ... 220 mbar - 0 ... 330 mbar 480 mbar 0 ... 320 mbar - 0 ... 480 mbar

660 mbar 0 ... 440 mbar - 0 ... 660 mbar 975 mbar 0 ... 650 mbar - 0 ... 975 mbar 1,350 mbar 0 ... 900 mbar - 0 ... 1,350 mbar 1,725 mbar 0 ... 1,150 mbar - 0 ... 1,725 mbar

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

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Adjustable measuring span

Allen key

(included in delivery)

Turn clockwise: reduce measuring range Turn anticlockwise: expand measuring range

Cover cap for adjustable measuring span

1. The span adjustment, situated at the ‚4 o‘clock‘ point on the instrument case, is accessible through the case by removing the cover cap.

2. Charge the instrument to the desired nominal pressure.

3. To set the pointer to the span value, using an allen key (size 3 mm) inserted into the funnel, turn it either clockwise (reduce the measuring range) or anticlockwise (expand the

measuring range). The gauge will then be fully adjusted to the required measuring range.

4. If the gauge is equipped with a transmitter model 89x.44 (see page 9), then this procedure

will also adjust the output signal to the new measuring range.

5. After completing the adjustment the equipment should be resealed with the cover cap.

Additional pressure connections

G 1/4 pressure connections

 Three additional G ¼ female threads are

available on the minus measurement

chamber (the right measuring cell ange

when viewed from the back) e.g. for connecting a pressure switch, safety valve or A-10 Cryo or IS-20 transmitters

 Two G ¼ female threads are available on

the plus measurement chamber (the left cell ange when viewed from the back)

e.g. for recalibration

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

Mounting holes M8

G 1/4 pressure connections

11557711.01AB

5. Valve manifold with working pressure gauge (optional)

The compact optional anged valve manifold for an NG 63 working pressure gauge allows the

central measurement of level and working pressure in a single device.

 To isolate line pressures without inter-

rupting the process, enabling gauge removal/examination and protecting the gauge against overpressure of n-times rated pressure which may occur during plant pressure testing.

11592649.01AB

 To protect the gauge against pressure

surges/pressure spikes, and thus against

Working

Test connection

M20 x 1.5

Isolating valve

pressure gauge

NS 63

Pressure equalising valve

Isolating valve

c) Connect the pressure standard and test pump using the additional G ¼ female port in the

plus chamber of the measuring system d) Remove the test connection screw from the minus side valve manifold e) The plus side can then be pressurised f) After adjustment:

- Close the air bleed screw

- Disconnect the pressure standard and test pump and close the connection

- Slowly open rst the plus and then the minus shut-o valve

 Test connection M20 x 1.5 for checking the working pressure gauge

The pressure equalising valve allows a zero point control during operation (with open valve).

a) Close the plus and minus shut-o valve b) Afterwards open the pressure equalising valve

 While the media is owing from the higher pressure side to the other side, the dierential

pressure at the pressure gauge drops to zero (the dierential pressure display must be at

zero, i.e. within the zero tolerance range which shows that the gauge is

 A zero adjustment can be made using the standard integra-

ted, adjustable pointer (remove snap t bezel incl. window and

sealing ring beforehand). Twisting the slotted screw on the adjustable pointer you can adjust the zero point.

After completing the zero adjustment, the snap t bezel, incl. window and ‚o‘-ring seal, must be correctly re-tted

and the pressure equalising valve must then be closed again.

 Subsequently the zero point of versions with integrated

transmitter (see page 9) should be checked.

c) Close the pressure equalising valve

d) Slowly open rst the plus and then the minus shut-o valve

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

unspecied operating conditions

 For gauge shut-downs, if no measure-

ments are required for long operating periods, i.e. if only occasional measure-

ments are necessary (to increase service life of those dierential and working pressu-

re gauges with a high frequency of pressure

uctuations).

 Recalibration of dierential pressure

gauges (tank volume display) a) Close the plus and minus shut-o valve

b) Afterwards open the pressure equalising valve, wait for a short period of time and then close the pressure equalising valve again.

working correctly).

Slotted screw

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6. Application note ... 8. Transmitter for level measurement

6. Application note

For dangerous media such as, for example, oxygen, acetylene, combustible or acidic media, as well as for pressure vessels, the general directives, and also the prevailing directives/guidelines must also be adhered to.

7. Adapter for process connection (optional)

The adapters can be ange-connected either directly to the dierential pressure gauge or to the valve manifold.

4 dierent process connections are available:

 2 x G 1/4, female, connection distance 31 mm or 54 mm

 2 x 1/4 NPT, female, connection distance 31 mm or 54 mm

With a single order, all parts necessary for tting to the dierential pressure gauge or to the

valve manifold are included in the scope of supply:

2 x hexagon screw M8 x 16, 2 x hexagon screw M8 x 28, 2 x nut M8 and 2 x O-Ring seal

8. Transmitter for level measurement (optional)

 Standard version model 891.44

 Ex version model 892.44

WIKA dierential pressure gauges with an integrated Model 89x.44 transmitter combines all

the advantages of an on-site mechanical display with the demands modern industry makes for electrical signal transmission for the acquisition of measured values.

The transmitter is integrated into the housing of the level display. The measurement span

(electrical output signal) is set automatically by the mechanical display, i.e. the scale over a swept angle of 270 degrees corresponds to 4 …20 mA (see section 4. Dierential pressure

gauge).

With multiple scales or interchangeable dials (optional) the output signal of 4 ... 20 mA corresponding to each, can be stored in a microprocessor.

The output signal can be changed over to the desired uid type by rotating the optional BCD switch (accessible through a cover cap on the left side of the case) using a screwdriver.

Electrical zero point (with option BCD switch)

BCD switc h (scale select ion switch) and zero poi nt button (cover ca p removed)

If a zero point compensation is required (e.g. after mechanical zero point correction), the instrument must rst be de-energised (pull the plug). Afterwards re-establish the power supply (insert the plug) and press the zero point button for approx. 1 sec. within 30 sec.

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

8. Transmitter for level measurement

Electrical zero point (without option BCD switch)

If the mechanical zero point is changed by means of the

adjustable pointer, the electrical zero point must be reset to the mechanical zero point.

First depressurise the pressure gauge.

Loosen the complete cable hood on the right-hand side of the pressure gauge by completely unscrewing the screw on the top of the cable hood cover

screwdriver (0.6 x 3.5 mm).

 using an appropriate









Extract the screw. Remove the cable hood socket insert separate the pressure gauge from the power supply.

Remove the cable hood cover and push the socket insert entire cable hood

Use a short stranded wire with bare points at both ends

(max. permissible resistance 30 Ω) to bridge contacts 5 and 6 on the socket insert.

Reassemble the plug in reverse order. Place the plug, with the attached piece of stranded wire, onto the pin insert and thus reestablish the power supply.

Within a max. 30 seconds the new zero point will be stored within the electronics. During this period, the current in the

loop will increase to 9.5 mA.

The new zero point also remains stored in the case of a power failure.

Loosen the plug again in the same sequence as described above and remove the piece of stranded wire. After reassembling the plug, the electrical output signal will once more correspond to the indication of the mechanical pointer.

Ensure the seals securely reinstalled to maintain the protection class.

 from the cable socket base  and thus

 from the cable hood 

 out downwards through the

.

 with the

,

 are properly and









 Screw  Cable hood cover  Cable hood  Socket insert  Cable socket base  Seals

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

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8. Transmitter for level measurement

Specications Models 891.44 and 892.44 (Ex Version)

Power supply UB

for Non-Ex version DC 12 V < UB ≤ 30 V for Ex version see the section ‚Ex protection‘!

Permissible residual ripple

% of span/10 V

Supply voltage eect % ss ≤ 10

Output signal 4 … 20 mA, 2-wire system Permissible max. load R

A for Non-Ex versions, Model 891.44:

Eect of load % of span ≤ 0.1

Output signal adjustment Zero point, electrical A

djustment of zero point through brief bridging of terminals 5 and 6,

or using the „scale selection switch“ option, selectable via button

Scale selection 4 scales selectable via BCD switch Linearity % of span ≤ 1.0 (limit point calibration) Permissible ambient temperatures °C -40 … +80, -40 … +60 with oxygen Compensated temp. range °C -40 … +80

Temperature coecients in

compensated temp. range

Mean TK of zero Mean TK of span

% of span/10 K % of span/10 K

Ex protection according to EC-Type Examination Certicate

Ex certication EEx II 2G EEx ia IIC T6 Conformity specications

Power supply U Short circuit rating I Rating P Internal capacitance C

Internal inductance L

i DC 14 … 30 V

i mA max. 100

i W max. 1

i nF 12

i mH negligible

Medium temperature °C -40 … +80, -40 … +60 with oxygen Ambient temperature °C -40 … +60 (T6) CE-Conformity interference emission and immunity per EN 61326 Wiring L-connector (screw terminals up to 2.5 mm²) Wiring protection protected against reverse polarity and overvoltage Ingress protection IP 65 per EN 60529 / IEC 529

Wiring details, 2-wire

1) Only possible within 30 seconds of connecting the supply voltage

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

≤ 0.1

A ≤ (UB - 12 V) / 0.02 A with RA in Ω and UB in Volt

for Ex versions, Model 892.44:

A ≤ (UB - 14 V) / 0.02 A with RA in Ω and UB in Volt

≤ 0.3 ≤ 0.3

BSV 08 ATEX E 018 X for Model 892.44

Earth, connected to case 2)

B+/Sig+

0V/Si g-

Terminals 3 , 4, 5 and 6: only for inte rnal

application

2) This connection must not be used for equipotential bonding. The instrument must be incorporated in the equipotential bonding via the process connection.

8. Transmitter for level measurement

Trouble shooting

Defect Possible reason Remedy

No signal output

Steady signal Pressure entry blocked Check tailpipes and pressure entry despite pressure bore, if necessary clean it carefully variation Open press. compensation valve Close pressure compensation valve

Steady and too high Electronic defect through Return pressure gauge to signal despite of incorrect supply voltage manufacturer for repair pressure variation or stray voltage spikes Full span reading too low Supply voltage too low Adjust supply voltage

Zero signal too low Wrong zero compensation Readjust zero point Zero signal too high Wrong zero compensation Readjust zero point

Failure of power supply Check power supply and wiring Wiring interrupted (or broken) replace defective components

Transmitter incorrectly wired Check wiring;

if necessary rectify it

No pressure Check tailpipes

Open press. compensation valve

Electronic defect e.g. through Return pressure gauge to incorrect supply voltage manufacturer for repair or stray voltage spikes

Electronic defect e.g. through Return pressure gauge to incorrect supply voltage manufacturer for repair or stray voltage spikes Transmitter defect after being Return pressure gauge to over-pressured manufacturer for repair

Load impedance too high Consider permissible max. load Wrong scale selected Check position of scale selection

Transmitter over-pressured Return pressure gauge to

Close pressure compensation valve

switch

manufacturer for repair

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

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9. Transmitter for working pressure indication

9. Transmitter for working pressure indication (optional)

Standard version model A-10 or Ex version model IS-20

The transmitters for the working pressure are screwed in sideways, on the left side of the minus measurement chamber and can,

if necessary, be retrotted on-site.

Pressure connection for Transmitter:

G 1/4 (male)

Transmitter for working pressure indication

Specications A-10 IS-20

Data sheet PE 81.60 PE 81.50 Design standard intrinsically safe Pressure ranges bar 0 ... 6 to 0 ... 60 0 ... 6 to 0 ... 60 Outputs mA 4 ... 20 4 ... 20 (line transformer) Medium temperature °C -30 ... +100 -20 ... +80 Ambient temperature °C -30 ... +100 -20 ... +80 Wetted parts stainless steel stainless steel Power supply U Maximum load R Accuracy

BFSL % of span ≤ 0.5 ≤ 0.25

Compensated temperature range

Wiring details, 2-wire

B DC 8 V < UB ≤ 30 V 10 V < UB ≤ 30 V

A Ohm RA ≤ (UB - 8 V) / 0.02 A RA ≤ (UB - 10 V) / 0.02 A

°C 0 ... +80 °C 0 ... +80 °C

Non hazardous area

Hazardous

(classied) area

The corresponding operating instructions are included in the delivery

of each dierential pressure gauge with integrated transmitter for

working pressure indication.

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

10. Switch contacts

10. Switch contacts (optional)

These switch contacts are tted into the case of a pressure gauge and intended to make or

break an electric control circuit triggered by the position of the instrument‘s pointer.

Versions

Single and double magnetic snap-action contacts or single and double inductive alarm sensors. Please refer to data sheet AC 08.01 for technical data.

The modular switch contact is a self-contained unit, which can be built onto the pressure gauge within a few minutes. The switch contacts provide IP65 ingress protection even for oil-lled gauges. The connection to the instrument pointer is made by means of a special fork so that a carrying pin at the pointer itself is not necessary. By means of this simple mounting, the instrument can be converted into a contact measuring instrument quickly and inexpensively.

The switch contacts mainly comprise:

 the pre-wired switch contact, which is provided with a special foot and a fork coupling  a transparent hood (polycarbonate) with dovetail lead into which the alarm contact is

pushed and which is fastened by means of a recessed head screw

 a 4-pin plug socket, injection-moulded or welded to the transparent cover  an adjustable lock, mounted in the middle of the transparent cover.

The set pointers of the built-in switch contact are adjusted, to the value at which the contact should switch, from the outside via the adjustable lock using a separate or a rigidly mounted key.

The switch contacts are designed to allow the instrument pointer to move beyond the adjusted set pointer after contact actuation takes place, with the contact remaining actuated.

The design therefore guarantees a stable switching condition, which corresponds to the position of the instrument pointer, even if the power fails.

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

Plug with cable

Plug seal

Plug socket

Type plate screws

Type plate

Front plate

Connection

Transparent hood

Special foot with dovetail lead

Plug screw

Spiral spring

Coupling fork

Ruby bearing

Spanner

Adjustable lock

Metal ag

Adjustable pin

Carrying arm

Contact pin Magnet carrying

plate Screw-in magnet Desired value

indicator, red

Contact arm with plate spring

Carrying pin of coupling fork

Bayonet rim

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10. Switch contacts

Mounting of switch contacts

 



Legend  Self-contained unit with switch

contact for level measurement

 Connector plug

First the snap t style bezel with sealing ring, and the gauge window, must be removed. Prior

to attaching the transparent hood to the measuring instrument, the contacts must be adjusted in accordance with their operating range.

Using the magnetic snap-action contact, the magnetic retention force must be adapted to the

instrument-specic conditions by adjusting (twisting) the screw-in magnet. The magnet must

then be protected against unintentional adjustment by using an appropriate locking varnish.

The small plate spring at the exible contact arm must be angled accordingly. The fully-adjusted unit must now be tted to the gauge, together with the snap-t bezel, and

aligned to the extent that the fork coupling guiding the exible contact arms grips over the

gauge pointer without touching the dial. Should this occur, the carrying fork must be shortened using a suitable cutting tool.

The contacts are best adjusted when they are factory-tted. By snapping the bezel onto the case, the whole contact unit will be xed to the pressure

gauge.

Connector plug

As counterpart to the connector base welded onto the transparent hood

 Material: PA 6 - GF 30  Colour: grey  Connection: stripped and tinned wires  Ingress protection: IP 65 per EN 60529 / IEC 529

For magnetic snap-action contacts:

 Connector plug 3 poles + l (250 V max.)

with 2 m cable 4 x 1.0 mm

For inductive alarm sensors:

Low voltage execution without protective earth conductor

 Connector plug 4 poles (50 V max.)

with 2 m cable 4 x 0.75 mm

Extent of delivery: 1 plug with cable, 1 central screw M3 x 20 and 1 gasket

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

Gasket

10. Switch contacts ... 12. Disposal

Terminal conguration

Magnetic snap-action

contacts:

 Single contact,

NS 100

 Double contact,

NS 100

 Single contact,

NS 160

 Double contact,

NS 160

Inductive alarm sensors:

 Single contact,

NS 100 and 160

 Double contact,

NS 100 and 160

green/yellow

blue

brown

green/yellow

blue

brown

black

green/yellow

brown

black

green/yellow

blue

brown

black

yellow

white

violet

yellow

black white

green/yellow

1st c ontac t common

green/yellow

1st c ontac t common 2nd contact

green/yellow

common 2nd contact

green/yellow

1st c ontac t common 2nd contact

1st contac t + 1st contac t -

1st contac t + 1st contac t 2nd cont act 2nd cont act +

11. Maintenance

WIKA dierential pressure gauges require no maintenance or servicing and will give very long

service when handled and operated properly.

12. 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-specic waste disposal regulations.

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

11592011.04 06/2014 GB/D/F/I

Enclosure 1

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WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

Enclosure 1

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

11592011.04 06/2014 GB/D/F/I

Enclosure 1

11592011.04 06/2014 GB/D/F/I

WIKA operating instructions dierential pressure gauge models 712.15.100, 732.15.100

11592011.04 06/2014 GB/D/F/I

Inhalt

1. Sicherheit 22

2. Allgemeines 22

3. Montage 22

4. Dierenzdruckanzeige 24

5. Ventilblock mit Betriebsdruckanzeige (Option) 26

6. Applikationshinweis 27

7. Adapter für Prozessanschluss (Option) 27

8. Transmitter für Füllstandanzeige (Option) 27

9. Transmitter für Betriebsdruckanzeige (Option) 31

10. Schaltkontakte (Option) 32

11. Wartung 34

12. Entsorgung 34

Anlage 1: EG-Baumusterprüfbescheinigung (Ex-Zulassung) für Drehwinkelgeber Typ 892.44 35

Information Dieses Zeichen gibt Ihnen Informationen, Hinweise oder Tipps.

Warnung!

Dieses Symbol warnt Sie vor Handlungen, die Schäden an Personen oder am Gerät verursachen können.

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WIKA Betriebsanleitung Dierenzdruckmessgerät Typen 712.15.100, 732.15.100

+ 47 hidden pages

WIKA 732.15.100 User Manual [en, de, fr, it]

Specifications and Main Features

Frequently Asked Questions

User Manual