External Alarm Output; Table 1: Data Logger Programming Limitations - Fourier DataNet User Manual

Sensor
Combination
A + B
(2 x A) + B
(3 x A) + B
(4 x A) + B

Table 1: Data Logger programming limitations

3.7.6.

External Alarm Output

The DataNet system supports connection of an external alarm
e.g. siren, audible alarm, to the Receiver external alarm input
or to In-1 of the DNL910 and DNL920 data loggers.
When connected to the Receiver, the external alarm will be
activated whenever a logger on the network is in alarm status.
When connected to the data logger, the external alarm will be
activated only when that specific logger is in alarm status.
Once there is no alarm status, the external alarm will be
deactivated.
Data Logger External Alarm
In-1 of the DNL910 and DNL920 serves either as a standard
sensor input or as an external alarm output. Configure In-1 as
Alarm Normally Open or Alarm Normally Closed in the
logger Setup window in the DataNet software.
Maximum
Sampling Rate
One sample every
four seconds
One sample every
five seconds
52
Example Setup
In-3: TC-J
Internal: Temp
In-1: TC-T
In-2: PT-100
Internal: Temp
In-1: TC-T
In-2: TC-J
In-3: PT-100
In-4: PT-100