Enmet ISA-40 Manuel d'utilisateur télécharger pdf (Page 8)

ENMET Corporation ISA-40 Oxygen Monitor

3.2.2 Remote Sensor Assembly Wiring

See Figure 4 for location of terminal blocks and optional intrinsic safety barrier.

Sensor assemblies with intrinsic safety barriers cannot have an audio alarm.

Table 2: Remote Sensor Assembly Wiring (without Intrinsic Safety Barrier)

Channel Signal Control Unit Connection Sensor Connection

1 Audio Alarm (–) TB3 – 1 TBS – 1

1 Audio Alarm (+) TB1 – 1 Horn TBS – 2

1 Oxygen Cell (–) TB1 – 1 O2 – TBS – 3

1 Oxygen Cell (+) TB1 – 1 O2 + TBS – 4

2 Audio Alarm (–) TB3 – 2 TBS – 1

2 Audio Alarm (+) TB1 – 2 Horn TBS – 2

2 Oxygen Cell (–) TB1 – 2 O2 – TBS – 3

2 Oxygen Cell (+) TB1 – 2 O2 + TBS – 4

3 Audio Alarm (–) TB4 – 1 TBS – 1

3 Audio Alarm (+) TB2 – 3 Horn TBS – 2

3 Oxygen Cell (–) TB2 – 3 O2 – TBS – 3

3 Oxygen Cell (+) TB2 – 3 O2 + TBS – 4

4 Audio Alarm (–) TB4 – 2 TBS – 1

4 Audio Alarm (+) TB2 – 4 Horn TBS – 2

4 Oxygen Cell (–) TB2 – 4 O2 – TBS – 3

4 Oxygen Cell (+) TB2 – 4 O2 + TBS – 4

Table 2A: Remote Sensor Assembly Wiring(with Intrinsic Safety Barrier)

Channel Signal Control Unit Connection Sensor Connection

1 Oxygen Cell (–) IS1 – 2 TBS – 3

1 Oxygen Cell (+) IS1 – 3 TBS – 4

2 Oxygen Cell (–) IS2 – 2 TBS – 3

2 Oxygen Cell (+) IS2 – 3 TBS – 4

3 Oxygen Cell (–) IS3 – 2 TBS – 3

3 Oxygen Cell (+) IS3 – 3 TBS – 4

4 Oxygen Cell (–) IS4 – 2 TBS – 3

4 Oxygen Cell (+) IS4 – 3 TBS – 4

NOTE: These sensor assemblies cannot have an audio alarm.

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Enmet ISA-40 Manuel d'utilisateur Page 8