Temperature Indicator : 409-4IN
REF NO: m47/om/201
Issue NO: 04
Page 19 of 34
6.4 Control Relay
Control relay “OFF” then relay will function according to the condition mention in the
following tables. Control
relay “ON” then functioning of relay will be just opposite to
the condition mention in the table. Lamp functioning will be as mention in the table i.e.
no change in the LED status.
Alarm AL1 (Momentary Alarm): when in abnormal condition ACK not pressed.
Table 6.
Condition
Normal
Abnormal
UP
DOWN
ACK**
Normal*
ACK*
**
High
Alarm
Latch(Yes)
LAMP
OFF
FLASH
FLASH
OFF
FLASH
OFF
RELAY
OFF
ON
ON
OFF
OFF
OFF
Alarm
Latch(No)
LAMP
OFF
FLASH
FLASH
OFF
OFF
OFF
RELAY
OFF
ON
ON
OFF
OFF
OFF
Trip
LAMP
OFF
FLASH
OFF
OFF
FLASH
OFF
RELAY
OFF
ON
OFF
OFF
ON
OFF
Low
Alarm
Latch(Yes)
LAMP
OFF
FLASH
OFF
FLASH
FLASH
OFF
RELAY
OFF
ON
OFF
ON
OFF
OFF
Alarm
Ltch(No)
LAMP
OFF
FLASH
OFF
FLASH
OFF
OFF
RELAY
OFF
ON
OFF
ON
OFF
OFF
Trip
LAMP
OFF
FLASH
OFF
OFF
FLASH
OFF
RELAY
OFF
ON
OFF
OFF
ON
OFF
VLow
Alarm
Latch(Yes)
LAMP
OFF
FLASH
OFF
FLASH
FLASH
OFF
RELAY
OFF
ON
OFF
ON
OFF
OFF
Alarm
Latch(No)
LAMP
OFF
FLASH
OFF
FLASH
OFF
OFF
RELAY
OFF
ON
OFF
ON
OFF
OFF
Trip
LAMP
OFF
FLASH
OFF
OFF
FLASH
OFF
RELAY
OFF
ON
OFF
OFF
ON
OFF