Digiguard H.264 Digital video recorder -4/8/16 channel models Instruções de Operação descarregar pdf (Página 113)

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MAN0443.P65 Issue 13 Aug 04 5701 Control System

05701-M-5001 A02279

CHAPTER 4 - INSTALLATION INSTRUCTIONS

Three Wire Control Card Current Sink, Transmitter Current Source Connection for

Model 1053 transmitter Unit (Signal Returned to Regulated +23V Supply)

Arrows Indicate

Direction of Loop

Current Flow

Screened

Cable

Cabinet

Protective

Earth

Note: Where a sensor is earthed locally, either to the Earth Stud or

through the sensor casing or mounting, to avoid earth loops the

screen sheath of the cable should only be connected at one

end. ie. At the sensor or at the Interface/relay Card.

Single Channel Control Card 4 - 20mA 05701-A-0301

Fitted with 4 - 20mA Sensor Drive 05701-A-0283

Relay/Field Interface Card

05701-A-0326

05701-A-0327

05701-A-0328

05701-A-0329

05701-A-0330

LK3

Link Positions

LK12

LK10

LK7

+24V

4 - 20mA (+)

Model 1053 Transmitter

Unit

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Digiguard H.264 Digital video recorder -4/8/16 channel models Instruções de Operação Página 113