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ADJUSTMENTS AND

MAINTENANCE

UT-MT-0930_1.3_220421 (EN)

Operation and Maintenance Manual

IRM

26

4.3.1 Pre-alarm threshold

Pre‑alarm limit value (default value: 1.00 MΩ).

If the resistance value if the insulation value falls below the set threshold, the WARNING signal activates.

The overcoming of the threshold is locally signalled by turning on the LED WARNING (yellow).

The same information is transferred to the supervisor through the data connection.

If present, the remote signalling system (optional) activates the relay by exchanging the

status of the respective contacts NO-NC.

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Summary of Contents for IRM

Page 1: ...EN 06ea44df 4930 4943 9da8 a9181f2c00fe Insulation Resistance Measurement INSULATION RESISTANCE MEASUREMENT SERIES CIRCUITS 6 6A UP TO 30 KVA FIELDBUS CONNECTION LONWORKS MANAGEMENT SOFTWARE SERVER AN...

Page 2: ...the property of their respective owners The copyrights of this manual are the property of EnergyTechnology S r L The instructions drawings tables and other contained in this manual are of a reserved t...

Page 3: ...ial property rights 9 1 9 Disposal 9 1 10 Article identification 9 2 DESCRIPTION OF THE DEVICE 2 1 General characteristics 11 2 2 Article number 13 3 INSTALLATION 3 1 Insulation measurement device 15...

Page 4: ...Page left intentionally blank UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 4...

Page 5: ...ing in aerodromes Constant current regulator FAA AC 150 5345 10 L 828 Constant current regulator unit without monitoring L 829 Constant current regulator unit with monitoring ICAO Annex 14 Manual of a...

Page 6: ...3 Safety instructions CAREFULLY READ THIS DOCUMENT The improper use of the equipment or the failure to comply all the precautions indicated implies life danger and serious injury to persons and damag...

Page 7: ...ing out maintenance or repair 1 5 Definition of operator All operations on devices and on its internal parts must be performed by professional staff properly formed and aware of the risks connected wi...

Page 8: ...e components in the shortest possible time without prejudice to the fact that for the so called commercial components and more generally for the components supplied by third party manufacturers will o...

Page 9: ...respondence received by the Supplier or in any case assimilated or gained during the conclusion of the Contract of sale Any right regarding intellectual and industrial property connected to equipments...

Page 10: ...Page left intentionally blank UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 10...

Page 11: ...for lighting and signalling in aerodromes Constant current regulator FAA AC150 5345 10 L 828 series circuit with CCR current regulator unit without monitoring L 829 series circuit with CCR current re...

Page 12: ...ists of a case in zinc coated steel painted with thermosetting epoxy powders colour RAL 7032 The internal sides of the device are segregated by panels in polycarbonat removable only in safety conditio...

Page 13: ...face A B LonTalk 4P GND Ethernet RJ45 2 2 1 Infeed Cut Out The device IRM is equipped with a cut out for an easier disconnection of the device The disconnection of the supply circuit does not prevent...

Page 14: ...Page left intentionally blank UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 14...

Page 15: ...nd with the regulations in force The device periodically performs the measure of the insulation resistance of the series circuit in order to monitor the deterioration of the features of the materials...

Page 16: ...eatures before installing the device Use the device only in combination with series circuit powered by CCR regulator units by power not higher than 30 kVA compliant with the standard IEC 61822 FAA AC...

Page 17: ...INSTALLATION UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 17 PROTECTIVE CONDUCTOR min 10mm2 SERIES CIRCUIT max 6 6A 30kVA...

Page 18: ...INSTALLATION UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 18 REMOTE SIGNALLING...

Page 19: ...INSTALLATION UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 19 CNS REMOTE SIGNALLING...

Page 20: ...ent data to local database with the configured interval The supervision software focuses on realizing the calculation of statistics average standard deviation maximum and minimum and of providing a gr...

Page 21: ...y be interfaced directly with the network structure The IRM _ _ __ _ B measurement devices are equipped with ETHERNET network interface and may be configured with an own IP address to be easily reache...

Page 22: ...Page left intentionally blank UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 22...

Page 23: ...possible to close the upstream cut out to supply the device 4 1 Preliminary operations If the device is equipped with a local cut out rotate it in ON position When the device is ONLINE series circuit...

Page 24: ...4 4 2 Visualization current value and voltage optional The device can monitor the actual current value on the connected series circuit If the device is equipped with the voltage measurement device opt...

Page 25: ...ual IRM 25 4 3 Parameter management The device is provided already configured with the default values All the parameters can be freely customised on the basis of the customer needs The configurable pa...

Page 26: ...e if the insulation value falls below the set threshold the WARNING signal activates The overcoming of the threshold is locally signalled by turning on the LED WARNING yellow The same information is t...

Page 27: ...e if the insulation value falls below the set threshold the ALARM signal activates The overcoming of the threshold is locally signalled by turning on the LED ALARM red The same information is transfer...

Page 28: ...CE UT MT 0930_1 3_220421 EN Operation and Maintenance Manual IRM 28 4 3 3 Measuring interval The operator can customise the interval of time between one measure of the insulation resistance and the su...

Page 29: ...treme precision In accordance with the suggestions contained in the document ICAO Airport Service Manual Part 9 Airport Maintenance Practices or on the basis of what reported in the document FAA AC 15...

Page 30: ...fuses 5x20 1A Delayed 487 0015 2 Interface display card F077 version with relay SESMC0004 Interface display card F077 base version without relay 150 3794 3 Measurement card F058 150 2876 4 Main cut o...

Page 31: ...Contact us OCEM AT 4 3 39 051 66 56 611 4 4 info ocem com...

Page 32: ...ocem OCEM AT a division of ENERGY TECHNOLOGY S r l Via della Solidariet 2 1 40056 Valsamoggia Bologna Italy Insulation Resistance Measurement UT MT 0930_1 3_22 04 2021 EN...

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