Hawker P7/I.S. Скачать руководство пользователя страница 11 | Manualshive

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Hawker P7/I.S. Скачать руководство пользователя страница 11

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14.

Remove the P1 & G short, the relay should remain de-energised.

15.

Remove the P2 & G short, the relay should energise.

16.

Testing the volt free contacts: -

Ensure the supply to the volt free contacts has been switched OFF and remove the

wires from the terminal block. Use an approved ohmmeter to measure the contact
resistance.

Check with the Relay de-energised (Led OFF) that the-
C & NO is greater than 1M Ohm and,
C & NC is less than 1 Ohm.

Check with the Relay energised (Led ON) that the-
C & NO is less than 1 Ohm and,
C & NC is greater than 1M Ohm

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Содержание P7/I.S.

Страница 1: ...troller type P7 I S Certificate No SIRA03ATEX2160X Electrode Holders Certificate No SIRA03ATEX2159X Conductivity Operated Level Control System Certificate No Ex03E2161 Hawker Electronics Limited O M 7...

Страница 2: ...4 2 3 Basic controller testing 10 4 3 Technical specification 12 5 0 Electrode Holders 13 5 1 Cat 1 Electrode holders 13 5 1 1 Type identification 13 5 1 2 Certification markings 14 5 1 3 Conditions o...

Страница 3: ...ected the unit either de energises or energises its internal relay dependent on the fail safe setting providing the user with a set of volt free S P C O contacts The unit may be used for High or Low a...

Страница 4: ...acing ventilation or cooling should be provided Ambient operating temperature ranges other than 20 C to 40 C will be indicated on the product label The equipment is intended to be used only in dry cle...

Страница 5: ...se to a spread of additional risks in the event of a power failure it must be possible to maintain them in a safe state of operation independently of the rest of the installation this is the responsib...

Страница 6: ...uipment shall only be carried out by the manufacturer or in accordance with the applicable code of practice 6 The certification of this equipment relies on the following materials used in its construc...

Страница 7: ...rnal relay contacts These relay contacts must not switch more than 5A r m s or 250V r m s or 100 VA 4 1 4 Electrical connection and housing The electrical connections are made to the terminal blocks s...

Страница 8: ...IS technical specifications for ordering information Always check to ensure the controller specifications are suited to the supply and its application before installing The input supply fail safe set...

Страница 9: ...ded that this manual be used for optimum performance No attempt should be made to remove this trim Precautions before testing Before disconnecting any mains leads or control wiring at the controller o...

Страница 10: ...erating cycle to ensure correct operation 4 2 3 Basic controller testing If necessary the controller can be tested without connecting to the electrode holders so its correct basic function and the use...

Страница 11: ...e supply to the volt free contacts has been switched OFF and remove the wires from the terminal block Use an approved ohmmeter to measure the contact resistance Check with the Relay de energised Led O...

Страница 12: ...cial low range to approx 7K Ohm Switching response 1s Operating Temp 20 C to 40 C Cable Typically 70m See drawing 2920 for maximum permitted Levels for intrinsic safety Capacitance max before sensitiv...

Страница 13: ...gases that may attack metals or solvents that may affect polymeric materials Suitable precautions e g regular checks as part of routine inspections or establishing from the material s data sheet that...

Страница 14: ...Sira 03ATEX2159X may be used in zones 0 1 and 2 with flammable gases and vapours with apparatus groups IIA IIB IIC and with temperature classes T1 T2 T3 T4 T5 and T6 The ambient temperature operating...

Страница 15: ...recommended distance is 23cm Using plastic coated electrodes which are available from stock can eliminate bridging always bare at least 50mm of the coating and have the reference G electrode central...

Страница 16: ...alculating cable capacitance and inductance follow 6 1 Cable inductance Example of calculating cable inductance Method A As the L R Ratio remains constant regardless of cable length this is the easies...

Страница 17: ...ch as the HPE8 when mounted 230mm apart may be up to 18m in length before this figure is exceeded Light duty electrodes such as the HPE7 mounted 75mm apart may be up to 15m in length which is far beyo...

Страница 18: ...ed except that it must not be supplied from nor contain under normal or abnormal conditions a source of potential with respect to earth ground in excess of 250V a c r m s or 250V d c and ii Controller...

Страница 19: ...roller G terminals Where a multiple controller system uses a Holder Type 1G 0 HPE5 IS as a common G holder the maximum number of P1 P2 holders that may be fitted is five 7 4 Permissible interconnectin...

Страница 20: ...Page 20 of 22...

Страница 21: ...K Notified Body Sira Certification Service 0518 Rake Lane Eccleston Chester CH4 9JN Conformity has been demonstrated with reference to the following documentation EC type examination certificate Sira...

Страница 22: ...Page 22 of 22...

Страница 23: ...l 41 41 541 5877 Fax 41 41 541 5878 Email General Information Sales info kesn ch Accounts Department accounts kesn ch USA O ce 233 Rogue River Highway 425 Grants Pass Oregon 97527 5429 USA Tel 1 503 2...

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