Sensor Electronics SEC3120 Instruction And Operation Manual page 16

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Logical OR – All alarm relays are controlled by the logical OR condition of BOTH sensor one and
sensor two states. This means that for a low-alarm relay to be engaged, EITHER sensor may be
reporting a low relay alarm state. For a mid-alarm relay to be engaged, EITHER sensor may be
reporting a mid-relay alarm state. For a high-alarm relay to be engaged, EITHER sensor may be
reporting a high alarm state. This relay mode is commonly utilized in the Unique Sensor Role, and
should be set PRIOR to setting the Unique Sensor Role. The fault relay will engage if EITHER
sensor is reporting a fault condition, or if the SEC3120 unit is in a fault state.`
Setting Relay Logic –
CALIBRATION
ALARM
* RELAY
NETWORK
Resetting Latched Relays (Selected from the Initial / Top Menu, Page 2)
The Reset Relays Menu will allow the operator to reset latched relays. Latched relays will be indicated by
a blue flashing Alarm LED.
EJECT MEMORY CARD
ABORT WARMUP
INFO
MAIN MENU
SEC DIAGNOSTICS
* RESET RELAYS
FORMAT FLASH CARD
EXIT
Operator Manual
SEC3120 Digital Transmitter
Move the cursor to RELAY and select ENTER to open the
relay menu.
* LOW
MID
HIGH
FAULT
* LOGIC MODE
PREVIOUS MENU
* MODE
PREVIOUS MENU
-
SENSOR ONE; relays respond to sensor one alarm states only.
-
SENSOR TWO; relays respond to sensor two alarm states only.
-
AND; relays will activate only when both sensor alarm states are at
the same action level.
OR; relays will activate when either sensor's alarm state is active.
-
MODE
* PREVIOUS MENU
* SAVE CHANGES
ABORT CHANGES
LOGIC MODE
* PREVIOUS MENU
Select ENTER and any latched relays will be reset.
The following will be briefly displayed (for about three seconds):
Page 16 of 40
Sensor Electronics Corporation
Move the cursor to LOGIC MODE on the 2nd
page of the RELAY menu and select ENTER.
Select ENTER with the cursor on MODE
'value'
to choose the relays' logic. Use the UP
and DOWN switches to choose the
desired logic option:
ENTER on 'PREVIOUS MENU' to return
'value'
to the Relay Menu and choose to
permanently save or abort the changes.
ENTER on 'SAVE CHANGES' to retain
new settings or 'ABORT CHANGES' to
cancel them. Either choice will return to
the Relay Menu.
ENTER on 'PREVIOUS MENU' to return to the
Main Menu.
P/N 1580281
Rev 10, 20150707