Fike CEREX - Operation; Maintenance

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Doc. P/N 8.8517.00.6
Rev. December, 2019
EEx ia detector (P/N 2994502201-C-S (FDA approved) and 29945022-C-S (not FDA approved)) placed inside Ex zone
Umax
=
30
V
Imax
=
250
mA
Pmax
=
750
mW
Ci
=
3.5
nF
Li
=
3
µH
Cable Belden 9463NH (blue 0.75mm²) PN 29900044 used to route detector into non-Ex zone
Ci
=
65
nF/km
Li
=
0.75
µH/km
Length
0.05
km (used as default 50 m)
Associated apparatus: Intrinsic safety Barrier PN 29970041-S placed outside Ex zone
EEx ia II C
TUV 00 ATEX 1522
Uo
=
28
V
Io
=
93
mA
Po
=
650
mW
Lo
=
2
mH
Co
=
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 correct functioning.
For more information, please contact your nearest Fike representative and/or EPC Manual E06-051-x.
4. MAINTENANCE
Caution: If assistance is needed, contact Fike for instructions, before performing any maintenance or service work on
the Fike Explosion Protection Equipment and/or System.