WIKA E-11 - Handbuch (Seite 7)

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