following procedure can be used to verify preliminary operation.

1. Remove the instrument enclosure cover by turning counter clockwise to expose

the LS3200 Switch

electronics.

2.Turn on power at its source.

3.Observe that either the red or green LED comes on.

4.If neither lamp illuminates refer to the trouble shooting Section, 6.2.

5.2L.E.D. and Relay Status Logic (Fail-Safe)

5.2.1The L.E.D.s (Red and Green) are an indication of the sensors status (ie. dry or wet) and are not affected by the position of the fail-safe jumper J-2. The fail-safe jumper J- 2 changes the relay activation status allowing the user to select the fail-safe power off condition most appropriate to the application. Refer to the tables below that show the logic conditions between the sensors, L.E.D. lights, relay coil and contacts for each position of the fail-safe jumper J-2.

5.2.2Normal Operation (as set at factory)

The switch comes configured from the factory with the following operation with the J-2 jumper in the B (2-3) position. (Refer to Figure 8.0.)

 

 

 

 

RELAY

 

RED

GREEN

RELAY

CONTACT

SENSOR STATUS

LED

LED

COIL STATUS

STATUS

 

Dry, or Lower Thermal

 

 

 

o NC

Dispersion Fluid

ON

OFF

Activated

 

 

(ie. hydrocarbons)

 

 

 

o NO

Wet, or Higher Thermal

 

 

o NC

 

 

Dispersion Fluid

OFF

ON

Deactivated

 

 

(ie. water)

 

 

 

 

o NO

5.2.3Alternate Operation (Field Selectable)

The relay logic may be reversed by moving the J-2 jumper to position A(1-2). (Refer to Figure 8.0.)

 

 

 

 

 

RELAY

 

 

RED

GREEN

RELAY

CONTACT

 

SENSOR STATUS

LED

LED

COIL STATUS

STATUS

 

 

Dry, or Lower Thermal

ON

OFF

Deactivated

o NC

 

 

 

IM-215 Rev-A.1

Series Innova-Switch™

 

Page 26 of 42

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Image 26
Sierra 215 manual RED Green Relay Contact Sensor Status LED

215 specifications

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