WIKA F-20, F-21 Operating Instructions Manual

WIKA Alexander Wiegand GmbH & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/ Germany
Tel. [phone]
Fax [phone]
E-Mail [e-mail]
www.wika.de

F-20 / F-21

GB

GB

Pressure Transmitter with Field Case

D

Druckmessumformer in Feldgehäuseausführung

Operating instructions
Betriebsanleitung

F-20

F-21

2103870.03 GB/D 01/2006

Pressure transmitter /
Druckmessumformer

F-21

F-20

WIKA Alexander Wiegand GmbH & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg

/Germany

Phone [phone]
Fax [phone]
E-Mail [e-mail]
www.wika.de

Operating instructions
Betriebsanleitung

F-20, F-21

2103870.03 GB/D 01/2006

2103870.03 GB/D 01/2006

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3WIKA Operating instructions / Betriebsanleitung F-20, F-21

2 WIKA Operating instructions / Betriebsanleitung F-20, F-21

1. Important details for your information / 2. A quick overview for you

GB

1. Important details for your information

Read these operating instructions before installing and starting the pressure transmitter.
Keep the operating instructions in a place that is accessible to all users at any time.
The following installation and operating instructions have been compiled by us with great care
but it is not feasible to take all possible applications into consideration. These installation and
operation instructions should meet the needs of most pressure measurement applications. If
questions remain regarding a specific application, you can obtain further information (data
sheets, instructions, etc.) via our Internet address (www.wika.de / www.wika.com ) or contact
WIKA for additional technical support (see section7 Starting, Operation/Further information).
With special model number, e.g. F-20000 or F-21000, please note specifications in the
delivery note.
The product data sheet is designated as PE 81.19
WIKA pressure transmitters are carefully designed and manufactured using state-of-the-art
technology. Every component undergoes strict quality inspection before assembly and each
instrument is fully tested prior to shipment.

2. A quick overview for you

If you want to get a quick overview, read Chapters 5, 7 and 10. There you will get some short
safety instructions and important information on your product and its starting.
Read these chapters in any case. Get some more detailed information on this product in
Chapters 4 Function and accessories and 6 Packaging. Read Chapter 8 for
Maintenance. In the case of failures please refer to Chapter 9.

Knowledge required

Install and start the pressure transmitter only if you are familiar with the relevant regulations
and directives of your country and if you have the qualification required. You have to be
acquainted with the rules and regulations on measurement and control technology and
electric circuits, since this pressure transmitter is electrical equipment as defined by EN

50178. Depending on the operating conditions of your application you have to have the
corresponding knowledge, e.g. of aggressive media.

Use of the product in accordance with the intended use F-2

S

Use the pressure transmitter for pressure measurement.

1. Important details for your information

2. A quick overview for you

3. Abbreviations, signs and symbols

4. Function and accessories

5. For your safety

6. Packaging

7. Starting, operation

8. Maintenance, spare parts

9. Trouble shooting

10. Storage, disposal
WIKA Global (Page 32)

Current terms and conditions apply.
Details are available on www.wika.de

Es gelten unsere aktuellen Verkaufs- und
Lieferbedingungen siehe unter www.wika.de

1. Wichtiges zu Ihrer Information

2. Der schnelle Überblick für Sie

3. Zeichenerklärungen, Abkürzungen

4. Funktion und Zubehör

5. Zu Ihrer Sicherheit

6. Verpackung

7. Inbetriebnahme, Betrieb

8. Wartung, Ersatzteile

9. Störbeseitigung

10. Lagerung, Entsorgung
WIKA Global (Seite 32)

Inhalt Seite 16-30

Contents Page 3-15

Contents / Inhalt

GB D

GB

D

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5WIKA Operating instructions / Betriebsanleitung F-20, F-21

4 WIKA Operating instructions / Betriebsanleitung F-20, F-21

5. For your safety

GB

5. For your safety

n Select the appropriate pressure transmitter with regard to scale range,

performance and specific measurement conditions prior to installing and
starting the instrument.

n Observe the relevant national safety regulations (e.g.: EN 50178)

and observe the applicable standards and directives for special applications
(e.g. with dangerous media such as oxygen, acetylene, flammable gases or
liquids and toxic gases or liquids and with refrigeration plants or compressors).

If you do not observe the appropriate regulations, serious injuries and/or
damage can occur!

n Open pressure connections only after the system is without pressure!
n Please make sure that the pressure transmitter is only used within the overload

threshold limit all the time!

n Observe the ambient and working conditions outlined in section 7 Technical data.
n Ensure that the pressure transmitter is only operated in accordance with the provisions

i.e. as described in the following instructions.

n Do not interfere with or change the pressure transmitter in any other way than

described in these operating instructions

.

n Remove the pressure transmitter from service and mark it to prevent it from being

used again accidentally, if it becomes damaged or unsafe for operation.

n Take precautions with regard to remaining media in removed pressure

transmitter. Remaining media in the pressure port may be hazardous or toxic!

n Have repairs performed by the manufacturer only.

Warn ing

!

3. Abbreviations, signs and symbols / 4. Function and accessories

GB

Notice, important information,
malfunction.

The product complies with the
applicable European directives.

FDA Food and Drug Administration

Power supply

Load (e.g. display)

3. Abbreviations, signs and symbols

4. Function and accessories

F-20: Standard pressure connection
F-21: Pressure connection with flush diaphragm for highly viscous or solids entrained

media which might clog the pressure port.

Function: With the pressure transmitter you measure the pressure of your application, which
is trans-formed into an electric signal. This electric signal changes in proportion to the
pressure and can be evaluated correspondingly.

Accessories: For details about the accessories, please refer to WIKAs price list, WIKAs
product catalog on CD or WIKAs web site www.wika.de. Please refer to our data sheet
Pressure gauge sealing washers AC 09.08 in WIKAs product catalog Pressure and
Temperature Measurement or our web site www.wika.de for details about sealing washers.

2-wire Two connection lines are

intended for the voltage supply.
The supply current is the
measurement signal.

3-wire Two connection lines are

intended for the voltage supply.
One connection line is intended
for the measurement signal.

UB+/Sig+ Positive supply /

measurement connection

OV/Sig- Negative supply /

measurement connection

Warn ing

!

Potential danger of life or of
severe injuries.

Warn ing

Caution

Potential danger of burns due to
hot surfaces.

Potential danger of life or of
severe injuries due to catapulting
parts.

Information about material consistency against corrosion and diffusion can be found in our
WIKA-Handbook, 'Pressure and Temperature Measurement'.

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7WIKA Operating instructions / Betriebsanleitung F-20, F-21

6 WIKA Operating instructions / Betriebsanleitung F-20, F-21

7. Starting, operation

GB

For tapped holes and welding sockets
please see Technical Information IN 00.14
for download at www.wika.de -Service

S #

P #

Product label

PIN assignment

Coded manufacture date
Signal

Power Supply
Product No.

Serial No.

Test

Test circuit connection

max. 50 Nm

Sealing

6. Packaging / 7. Starting, operation

GB

In order to protect the diaphragm, the pressure connection of the instrument F-21 is provided
with a special protection cap.

Required tools: wrench (flats 27), screw driver

n Pay attention to any liquid leaking out, for this points to a diaphragm damage.
n Check the diaphragm visually for any damage.
n Use the pressure transmitter only if the diaphragm is undamaged.
n Use the pressure transmitter only if it is in a faultless condition as far as the

safety-relevant features are concerned.

Diaphragm test for your safety

Warn ing

!

It is necessary that before starting the pressure transmitter you test the diaphragm, as this is
a safety-relevant component.

7. Starting, operation

Has everything been supplied?

Check the scope of supply:
n Completely assembled pressure transmitters; with flush version F-21

including pre-assembled sealings and protection cap.

Installation

n Remove the protection cap only just before installation and absolutely avoid

any damage to the diaphragm during installation as well.

n Ensure that the cable diameter you select fits to the cable gland of the

connector. Ensure that the cable gland of the mounted connector is positioned
correctly and that the sealings are available and undamaged. Tighten the
threaded connection and check the correct position of the sealings in order to
ensure the ingress protection.

n Connect the instrument to earth via the pressure connection and/or

connection terminal 5.
n Hold the instrument on the flat of the nut with an appropriate tool and tighten
the screws to the required torque or unscrew it as the case may be.
Do not hold onto the housing with pliers to screw or unscrew.

n Remove this protection cap only just before installing the pressure

transmitter in order to prevent any damage to the diaphragm.

n Ensure that the pressure connection thread and the connection contacts

will not be damaged.

n Mount the protection cap when removing and transporting the instrument.

6. Packaging

n Inspect the pressure transmitter for possible damage during transportation.

Should there be any obvious damage, inform the transport company and WIKA
without delay.

n Keep the packaging, as it offers optimal protection during transportation

(e.g. changing installation location, shipment for repair).

n Keep the protection cap of the pressure connection thread and the diaphragm

for later storage or transport.

For Model F-20
the sealing ring
is available as
an optional
extra.

For Model F-21
the sealing ring
is included in
delivery.

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9WIKA Operating instructions / Betriebsanleitung F-20, F-21

8 WIKA Operating instructions / Betriebsanleitung F-20, F-21

7. Starting, operation

GB

7. Starting, operation

GB

Wiring

3-wire

2-wire

Ingress protection IP 68 per IEC 60529
(Please make sure that the ends of cables do not allow any ingress of moisture.

)

Cable connection in the spring clip terminal

n Cover the stripped wire ends with end splices.
n Unscrew the case cover.
n Loosen the cable gland using an open-end wrench, wrench size 24.
n Lead the cable through the cable gland into the opened case head.
n Press the corresponding plastic lever at the spring clip terminal down using a screw driver,

so that the clamped contact will be released.

n Lead the prepared flying lead into the opening and let go of the plastic lever, so that the

flying lead will be squeezed inside the spring clip terminal.

n After connecting the individual wires, tighten the cable gland and screw down the case over.

conductor outer diameter 7 - 13 mm

Specifications

Model F-20, F-21

Pressure ranges *

)

bar 0.1 0.16 0.25 0.4 0.6 1 1.6
Over pressure safet y bar 1 1.5 2 2 4 5 10
Burst pressure bar 2 2 2.4 2.4 4.8 6 12

Pressure ranges *

)

bar 2.5 4 6 10 16 25 40
Over pressure safet y bar 10 17 35 35 80 50 80
Burst pressure bar 12 20. 5 42 42 96 96 400

Pressure ranges *

)

bar 60 100 160 250 400 600 1000

1)

Over pressure safet y bar 120 200 320 500 800 12 00 1500
Burst pressure bar 550 800 1000 1200 1700 2)2400 2)3000

{Vacuum, gauge pressure, compound range, absolute pressure are

available}

1)

Only Model F-20

2)

For Model F-21: the value specified in the table applies only when sealing is realised

with the sealing ring underneath the hex. Otherwise max. 1500 bar applies.

Materials

n

Wetted parts

(Other materials see WIKA diaphragm se al program)

Ø

Model F-20 *

)

Stainless steel

Ø

Model F-21

Stainless steel {Hastelloy C4}; O-ring: NBR {FPM/FKM}

n

Case

Stainless steel

n

Electrical conn ection

with internal spring clip terminal; cross section max. 2.5 mm2,

Ground terminals internal for brass nickel-plated a nd

{stainless steel} and {stainles s steel conduit} threaded connection

Internal transmission fluid

3)

Synthetic oil {Halo carbon oil for oxygen applications }
{Listed by FDA for Food & Beverage}

3)

Not for F-20 with pressure ranges > 25 bar

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11WIKA Operating instructions / Betriebsanleitung F-20, F-21

10 WIKA Operating instructions / Betriebsanleitung F-20, F-21

7. Starting, operation

GB

7. Starting, operation

GB

Functional test

n Open pressure connections only after the system is without pressure!
n Observe the ambient and working conditions outlined in section 7

Technical data.

n Please make sure that the pressure transmitter is only used within the overload

threshold limit at all times!

Warn ing

When touching the pressure transmitter, keep in mind that the surfaces of the
instrument components might get hot during operation.

Caution

The output signal must be proportional to the pressure. If not, this might point to
a damage of the diaphragm. In that case refer to chapter 9 Trouble shooting.

When designing your plant, take into account that the stated values (e.g. burst pressure, over
pressure safety) apply depending on the material, thread and sealing element used.

Specifications

Model F-20, F-21

Power supply U

B

UB in DC V

10 < U

B

≤

30 (11 ... 30 with sig nal output 4 ... 20 mA,

14 ... 30 with signal outp ut 0 ... 10 V)

Signal output and RA in Ohm

4 ... 20 mA, 2-wire R

A

≤ (UB - 11 V) / 0,02 A

maximum load R

A

0 ... 20 mA, 3-wire RA ≤ (UB - 3 V) / 0,02 A
{0 ... 5 V, 3-wire} RA > 5 000 {0 ... 10 V, 3-wire} RA > 10 000

Test circuit signal / max. load R

A

Only for instrume nts with 4 ... 20 mA signal output;

RA < 15 Ohm with 20mA
Adjustability zero/span % ± 10 using potentiom eters inside the instrument

Response time (10 ... 90 %) ms

≤

1
Dielectric strength DC V 500

Accuracy % of span

≤

0.25 {0.125}

4)

(BFSL)

% of span

≤

0.5 {0.25}

4) 5)

4)

Accuracy { } for pressure ranges ≥ 0.25 bar

5)

Including non-linearity, hysteresis, non-repeatability, zero point and full scale error

(corresponds to error of measurement per IEC 61298-2).

Adjusted in vertical mounting position with lower pressure connection.

Non-linearity % of span

≤

0.2 (BFSL) according to IEC 1298-2

1-year stability % of span

≤

0.2 (at reference conditions)

Permissible temperature of

n

Medium

6) *)

-30 ... +100 °C {-40 ... +125 °C 7)} -22 ... +212°F {-40 ...+ 257°F 7)}

n

Ambience

6)

-20 ... + 80 °C {-30 ... +105 °C} -4 ... +176 °F {-22 ... +22 1°F}

n

Storage

6)

-40 ... +100 °C -40 ... +212 °F

6)

Also complies with EN 50178, Tab. 7, Operation (C) 4K4H, Storage (D) 1K4, Transport (E) 2K3

7)

Response time F-20: ≤ 10 ms

at medium temperatures below -30 °C for pressure

ranges up to 25 bar

Response time F-21: ≤ 10 ms at medium temperatures below -30 °C (-22 °F)

Specifications

Model F-20, F-21

Compensated temperature range 0 ... + 80 °C +32 ... +176 °F

Temperature coefficients within

compensated temp range

n

Mean TC of zero

% of span / 10 K

≤

0.2 (< 0.4 for pressure range 0 ... 0.1 and 0 ... 0.16 bar)

n

Mean TC of range % of span / 10 K

≤

0.2

a

- conformity

89/336/EEC interferenc e emission and immunity see
EN 61 326, interfere nce emission limit class A and B

97/23/EG Pressure eq uipment directive (Module H)

Shock resistance g 600 according to IEC 60068-2-27 (mechanical shock)
Vibration resistance g 10 acco rding to IEC 60068-2-6 (vibr ation under resonance)

Wiring protection Protected against reverse polarity and and sho rt circuiting on the

instrument side

Mass kg Approx. 0.35

*) In an oxygen version model F-21 is not available. In an oxygen version model F-20 is only available in gauge pressure ranges

≥

0.25 bar with media temperatures between -20 … +60 °C / -4 … +140 °F and using stainless steel or Elgiloy

®

wetted parts.

{ } Items in curved brackets ar e optional extras for additional price.

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13WIKA Operating instructions / Betriebsanleitung F-20, F-21

12 WIKA Operating instructions / Betriebsanleitung F-20, F-21

GB

Spare parts

For spare part details refer to our current stock price list, the CD catalog or contact our sales
department.

8. Maintenance, spare parts

7. Starting, operation

GB

8. Maintenance, spare parts

Do not insert any pointed or hard objects into the pressure port for cleaning to
prevent damage to the diaphragm of the pressure connection.

n Take precautions with regard to remaining media in removed pressure

transmitters. Remaining media in the pressure port may be hazardous or toxic!

n Remove the pressure transmitter from service and mark it to prevent it from

being used again accidentally, if it becomes damaged or unsafe for operation.

n Have repairs performed by the manufacturer only.

Warn ing

!

n Open pressure connections only after the system is without pressure!

Warn ing

WIKA pressure transmitters require no maintenance!

For further information
(+49) 9372/132-295

S = Span

Adjustment of zero point / span

Recommended recalibration cycle: 1 year

n Make sure using a pressure standard with

adequate accuracy.
Pressure standard with adequate accuracy
means with an accuracy that is at least 3x
more accurate than the accuracy indicated
for the instrument.

n Open the pressure transmitter by

twisting off the field case over.

n Adjust the zero point (Z) by generating the

lower limit of the pressure range.

n Adjust the span (S) by generating the

higher limit of the pressure range.

n Check the zero point.
n If the zero point is incorrect, repeat

procedure as required.

n Close the pressure transmitter carefully.

Make sure that the sealings are not
damaged and check their correct
position in order to ensure the ingress
protection.
And make sure that no braids get pinched.

Z = Zero

Function of the test circuit for 2-wire

By means of the test circuit the current can be metered during normal operation without hav­ing to disconnect the instrument. For that purpose you have to connect an ammeter (internal
resistance < 15 Ohm) to the test +/- terminals.

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15WIKA Operating instructions / Betriebsanleitung F-20, F-21

14 WIKA Operating instructions / Betriebsanleitung F-20, F-21

9. Trouble shooting / 10. Storage, disposal

GB

Process material certificate (Contamination declaration for returned goods)

Purge / clean dismounted instruments before returning them.
Service of instruments can only take place safely when a contamination declaration has been
submitted and fully filled-in. This declaration contains information on all materials with which
the instrument has come into contact, either through installation, test purposes, or cleaning.
You can find a contamination declaration on our internet site (www.wika.de / www.wika.com).

USA, Canada

If the problem continues, contact WIKA or an authorized agent for assistance. If the pressure
transmitter must be returned obtain an RMA (return material authorization) number and
shipping instructions from the place of purchase. Be sure to include detailed information
about the problem. Pressure

transmitters received by WIKA without a valid RMA number will

not be accepted.

10. Storage, disposal

Dispose of instrument components and packaging materials in accordance
with the respective waste treatment and disposal regulations of the region or
country to which the instrument is supplied.

Storage

Disposal

When storing or disposing of the pressure transmitter, take precautions with
regard to remaining media in removed pressure

transmitters. Remaining media in

the pressure port may be hazardous or toxic!

Warn ing

!

Mount the protection cap when storing the pressure transmitter in order to
prevent any damage to the diaphragm.

If the problem persists, contact our sales department.

9. Trouble shooting

Problem Possible cause Remedy

No output

Power supply failure

Check power supp ly

Open wiring

Check continuity

Wiring reversed

Correct polarity

No pressure or port blocked

Check pressure p ort

Transmitter failure due to wrong
Supply voltage o r power surge

Replace transmitte r

Output steady as pressure

Pressure port blocked

Check pressure p ort

changes

Transmitter over-pressurized

Replace transmitter

Transmitter failure due to wrong
Supply voltage o r power surge

Replace Transmitt er

Full span output low

Supply voltage too low

Check supply voltage

Load impedance too high or too low

Adjust load or supply voltage

Transmitter over-pressurized

Recalibrate Transmitter
Replace Transmitt er *)

Zero signal too low

Transmitter over-pressurized

Recalibrate Transmitter
Replace Transmitt er *)

Zero signal too high

Transmitter over-pressurized

Recalibrate Transmitter
Replace Transmitt er *)

Non-linear output

Transmitter over-pressurized

Replace Transmitt er

*) Test the system for proper operation after adjustments are made. An excessiv e change in the output signal that
cannot be corrected by calibration indic ates possible transmitter damage. This may cause the output to be non-linear,
requiring transmitter replacement.

WIKA reserves the right to alter these technical specifications.

9. Trouble shooting

GB