background image

 

SOLUTIONS 

Fire Protection 

Explosion Protection 

Overpressure Protection 

Pressure Activation 

INSTALLATION AND MAINTENANCE INSTRUCTIONS 
 

Ceramic Explosion 
Pressure Detector - 
CEREX 

EXPLOSION PROTECTION  

 

Doc. 8.8517.00.6 
Rev. December, 2019

 

Summary of Contents for 2994502201-C-S

Page 1: ... Protection Explosion Protection Overpressure Protection Pressure Activation INSTALLATION AND MAINTENANCE INSTRUCTIONS Ceramic Explosion Pressure Detector CEREX EXPLOSION PROTECTION Doc 8 8517 00 6 Rev December 2019 ...

Page 2: ...to www fike com terms conditions for Fike s full TERMS AND CONDITIONS OF SALE TERMS OF USE Do not alter modify copy or otherwise misappropriate any Fike product whether in whole or in part Fike assumes no responsibility for any losses incurred by you or third parties arising from such alteration modification copy or otherwise misappropriation of Fike products Do not use any Fike products for any a...

Page 3: ...Doc P N 8 8517 00 6 Rev December 2019 PAGE 1 REVISION HISTORY ORIGINAL RELEASE DATE June 2017 REVISION DESCRIPTION OF CHANGE REVISION DATE ...

Page 4: ... 4 1 Cerex D Explosion Protection Ceramic Pressure Detector Dust 7 1 4 2 Cerex G D Explosion Protection Ceramic Pressure Detector Gas 7 1 4 3 Conditions for Special Use 7 1 5 Scope of Supply 8 1 6 Dimensions 9 1 7 Technical Specifications 9 2 WIRING INSTRUCTIONS 9 2 1 Connecting 4 20 mA Output to EPC P2 1 or P2 2 10 2 1 1 Single Wire Diagram Schematic 10 2 1 2 Wiring Diagram 10 2 2 Intrinsically S...

Page 5: ...Doc P N 8 8517 00 6 Rev December 2019 PAGE 3 7 2 Ordering Information 15 7 3 Supplementary Documentation 15 7 4 Applied Norms 15 8 REPAIR AND RETURN AUTHORISATION 15 ...

Page 6: ... determine if the pressure change is that of a developing explosion The pressure detector utilizes a ceramic pressure sensing element This ceramic element allows the detector to have high overload protection corrosion resistance and long term stability With ASIC technology the detector is provided with high accuracy through compensation of linearity and temperature errors 1 2 Nameplate Information...

Page 7: ...oc P N 8 8517 00 6 Rev December 2019 PAGE 5 1 2 1 2 29945023 C S not FDA approved The marking of the detector is laser printed on the side of the detector housing The 29945023 C S label looks as follows ...

Page 8: ...otection Ceramic Pressure Detector Gas 1 2 2 1 P N 2994502201 C S FDA approved and 29945022 C S not FDA approved The marking of the detector is laser printed on the side of the detector housing The 2994502201 C S label looks as follows The 29945022 C S label looks as follows ...

Page 9: ... 1 Cerex D Explosion Protection Ceramic Pressure Detector Dust This detector is suitable for installation in Dust Ex areas installation into zone 21 and 22 and wetted parts in contact with zone 20 1 4 2 Cerex G D Explosion Protection Ceramic Pressure Detector Gas This detector is suitable for installation in Dust Ex areas installation into zone 21 and 22 and wetted parts in contact with zone 20 Ga...

Page 10: ...a folded carton box and includes the following parts Detector assembly including cable to be routed to a Fike junction box Plastic protection cap to be removed before installation Supplied documentation Installation Operating and Maintenance Instructions this manual CE declaration of conformity ...

Page 11: ...range Process 20 C to 125 C Cleaning Incidental 150 C Ambient 20 C to 65 C Storage 40 C to 80 C Power supply 12 to 30 VDC Current consumption 100 mA max Output signal 4 20 mA current loop Response time 2 less than 1 ms Electrical connection Fixed shielded and vented cable 4 x 0 22mm Black or Blue Ø 6 3mm length 3m Approvals CE IP67 ATEX II 1 2 D Ex ta IIIC T85 T130 C Da Db IP67 ATEX II 1 2 G Ex ia...

Page 12: ...se Operating Instructions 2 1 Connecting 4 20 mA Output to EPC P2 1 or P2 2 2 1 1 Single Wire Diagram Schematic Notes Use Belden 9873 cable between EPC and Junction Box Do not connect to other terminals besides the terminals P2 1 and P2 2 of the EPC Fike Controller Switch off EPC before connecting to the junction box Maximum cable loop resistance from detector to EPC is 30 Ω 2 1 2 Wiring Diagram 1...

Page 13: ...r detector Intrinsic safe transducer barrier may only be placed outside Ex zone as close as possible to the EPC controller 2 2 2 Wiring Diagram 1 Intrinsic safe transducer barrier PN 29970030 S one barrier for each detector 2 EPC controller PN E10 0066 Use RE2Y ST Y black 1x2x0 75mm cable for connection to Intrinsic safe transducer barrier 2 2 3 Intrinsic Safety Calculation The worked out example ...

Page 14: ...o 83 nF Comparison for intrinsic safety compliance EExi apparatus Cable Total Associated apparatus Umax 30 V Ui 30 V Uo 28V Imax 250mA Ii 250 mA Io 93mA Pmax 750mW Pi 750 mW Po 650 mW Ci 3 5 nF Ci 3 25 nF Ci 6 75 nF Co 83 nF Li 3 µH Li 37 5 µH Li 40 5µH Lo 2 mH 3 OPERATION Fike s EPC and EPACO components offers extensive display and or evaluation possibilities for verifying the ceramic detector co...

Page 15: ... inspection requires the pressure detector to be response tested by Fike to insure that the detector can be accepted 5 2 Routine Inspections Routine inspections shall be conducted on a quarterly basis and involves a visual inspection of the detector s electrical connections are all connections still tight look for excessive wear mechanical damage and the detector s process wetted parts membrane Th...

Page 16: ...ace detector Measuring value inaccurate incorrect Offset drift electronic defect Return to Fike for recalibration and response test Product build up on the detector membrane clean refer to routine inspection section 6 DE COMMISSIONING PROCEDURE CHECK LIST De commissioning should only be performed by a Fike qualified Service Engineer who has been assigned to prepare and complete the de commissionin...

Page 17: ...return authorization must be provided by Fike A prearranged return authorization will expedite the business and corrective action measures taken upon receipt of the part s When preparing the component for shipment please put the Shipping Label that is provided by Fike on the package with the goods to be returned Also include a specific statement of the perceived defect or component failure so Fike...

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Page 19: ...Notes ...

Page 20: ...NTACT US Fike Europe Toekomstlaan 52 2200 Herentals België Tel 32 14 210031 www Fike com For a list of contact information for Fike offices around the world visit the Global Locations section of Fike com ...

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