9 Repairs
Electronic insertShould the FEC 22 electronic insert need to be repaired by Endress+Hauser, please
send it with a note containing the following information:
• An exact description of the application for which it was used.
• The chemical and physical properties of the product measured.
• A short description of the fault.
ProbeSpecial precautions must be observed when sending the probe and its FEC 22 for
repair:
• Remove all traces of product. This is particularly important if the product can impair
health, i.e. corrosive, poisonous, carcinogenic, radioactive etc..
• If the last traces of dangerous products cannot be removed, e.g. product has
penetrated into fissures or diffused into plastic parts, we kindly ask you not to send
the probe for repair.
10 Waste Disposal
PackagingAll sales and transport packaging from Endress+Hauser is produced in conformance
to the regulations governing packing for reuse and recycling.
InstrumentsFor a small charge, Endress+Hauser will accept and recycle any instruments
manufactured in its own E+H production program. These will then be disposed of
according to the German regulations covering the disposal of electronics. Delivery to
Endress+Hauser, Hauptstr 1,
79689 Maulburg, Germany.
11 Technical Data
General specifications
Manufacturer Endress+Hauser GmbH+Co.
Designation FEC 22 electronic insert
Operation and system design
Measuring principle Capacitive
Signal processing AC version: 2 relays connected in parallel (DPDT)
DC version: Load switching via transistor
Electrical isolation Between measuring loop and power supply loop
Input
Measured variable Level (limit)
Range of capacitance For empty detection (uncovered probe) 10 pF…350 pF
Operating frequency 500 kHz
Output
AC version Two change-over contacts (DPDT), to withstand load:
- AC 253 V, 6 A max., P~max. 1500 VA, cos ϕ = 1
- DC: 30 V, 6 A max.
125 V, 0.2 A max.
DC version Consumption approx. 18 mA at 24 V:
- Load current up to 350 mA continuous, max. 55 V, with overload and
reverse current protection
- Residual current when blocked less than 10 µA
Elektronic insert FEC 22 9 Repairs
Endress+Hauser 39
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