Emerson UVC120 Channel Selection, Controller Sensitivity Adjustment, U1F, U2F and U4F, U4F only

time delay. See Figure 11a below. The switch banks are numbered from top to bottom as SW 5, SW 4 and SW 3.

Individual ON/OFF switches are designated “SW X.Y where ‘X’ refers to the switch bank and ‘Y’ refers to the switch number on ‘X’ bank. See Figure 11b.

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Figure 11b - Dip Switch

Figure 11a - Dip Switch Position

CHANNEL SELECTION

Switches SW 3.1 through SW 3.4 enable the detectors that are to be connected to the controller. The appropriate switch must be set to the ‘OFF’ position to enable each detector connected. If a switch is off but no detector is connected in that location the controller will indicate a fault. If a switch is on, but a detector is connected, the controller will appear to be operating correctly but that detector will be eliminated from the Automatic vi test sequence and any faults occurring in its circuit will not be annunciated.

U1F, U2F and U4F

<SW 3.1: OFF: detector 1 connected

ON: detector 1 not connected

U2F and U4F

<SW 3.2: OFF: detector 2 connected

ON: detector 2 not connected

U4F only

<SW 3.3: OFF: detector 3 connected

ON: detector 3 not connected

<SW 3.4: OFF: detector 4 connected

ON: detector 4 not connected

CONTROLLER SENSITIVITY ADJUSTMENT

Switches SW 4.1 through SW 4.4 set controller sensitivity in 8 cps (counts per second) increments.

<SW 4.1 ON: 8 cps

<SW 4.2 ON: 16 cps

<SW 4.3 ON: 32 cps

<SW 4.4 ON: 64 cps

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