Maintenance, accessories, Trouble shooting – WIKA E-11 Benutzerhandbuch

Seite 7

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11116552.07 GB/D 06/2010

12

WIKA Operating instructions/Betriebsanleitung E-10, E-11

11116552.07 GB/D 06/2010

13

WIKA Operating instructions/Betriebsanleitung E-10, E-11

Specifications

Model E-10 / E-11

„

EMC directive

2004/108/EC, EN 61 326 Emission (Group 1, Class B) and Immunity

(industrial locations)

„

Directive ATEX of equipment

intended for use in potentially

explosive atmospheres

94/9/EC

Ex-protection

ATEX

Category

4)

2G

Ignition protection type

Ex d IIC T6 ... T1

4)

Read the operating conditions and safety-relevant data in the EC-type

examination certificate in any case (KEMA 05 ATEX 2240 X)

HF-immunity

V/m

10

BURST

kV

4

Shock resistance

g

1000 according to IEC 60068-2-27 (mechanical shock)

Vibration resistance

g

20 according to IEC 60068-2-6 (vibration under resonance)

Wiring protection

„

Short-circuit proofness

S+ towards U-

„

Reverse polarity protection

U+ towards U-

Weight

kg

Approx. 0.2

Failure

Possible cause

Procedure

No output signal

No/incorrect voltage supply or current

spike

Mechanical overload through over-

pressure

Cable break

Check connections and cable

No/False output signal

Incorrectly wired (e.g. Connected as

2-wire instead of 3-wire system)

Follow pin assignment (see Instrument

Label / Operating Instructions)

Output signal unchanged after change

in pressure

Mechanical overload through over-

pressure

Replace instrument; if failure reoccurs,

consult the manufacturer *)

7. Starting, operation

GB

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.

8. Maintenance, accessories / 9. Trouble shooting

GB

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

Functional test

„

Open pressure connections only after the system is without pressure!

„

Observe the ambient and working conditions outlined in section 7
„Technical data.

„

Please make sure that the pressure transmitter is only used within the over
load threshold limit at all times!
When touching the pressure transmitter, keep in mind that the surfaces of
the instrument components might get hot during operation.

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 „Troubleshooting“.

8. Maintenance, accessories

Accessories: For details about the accessories, please refer to WIKA‘s price list, WIKA‘s
product catalog on CD or or contact our sales department.

„

WIKA pressure transmitters require no maintenance.

„

Have repairs performed by the manufacturer only.

9. Trouble shooting

Open pressure connections only after the system is without pressure!

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

„

Take precautions with regard to remaining media in removed pressure trans-
mitters. Remaining media in the pressure port may be hazardous or

toxic!

„

Remove the pressure transmitter from service and mark it to prevent it from
being used again accidentally, if it becomes damaged or unsafe for opera-
tion.

„

Have repairs performed by the manufacturer only.

Please verify in advance if pressure is being applied (valves/ ball valve etc. open) and if the
right voltage supply and the right type of wiring (2-wire/ 3-wire) has been chosen?

Warning

Caution

Warning

!

Warning

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