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Enter the type of alarm function you wish to use: Exclusive (alarm switch is closed when
the reported sensor value is outside of the low and high values selected) or Inclusive
(alarm switch is closed when the reported sensor value is between the low and high
values selected).
Enter output: A1 [1] or A2 [2].
Enter low threshold.
Enter high threshold.
Enter on delay in seconds [0-1200]. This is the time that the sensor value is in the alarm
condition before the alarm switch activates.
Enter off delay in seconds [0-1200]. This is the time that the alarm switch drops out of
the alarm condition before the alarm switch deactivates.
After entering this information the setup menu reappears. To add additional alarms the
process must be repeated.
3.10.2 Interfacing to the Alarm Circuit
Use only 12Vdc powered lights or buzzers, low current < 200 mA maximum, observe
polarity. An intermediate relay is recommended as the alarm interface to the device
being controlled by the alarm. The intermediate relay provides isolation from any
voltage or current spikes that might be associated with the device being controlled, e.g.
a pump motor starting. Further, it is possible to use a programmable time relay in order
to ensure that the alarm does not go into a dithering state.
3.11 Interfacing the WS-16-A with a Telephone Modem
The WS-16-A has a modem compatible firmware, which makes it possible to connect a
standard telephone modem (with a speed capability of at least 9600 baud) between the
WS-16-A and a telephone line so that the WS-16-A can be accessed remotely via
telephone from a computer.
NovaLynx offers two modems, the 110-WS-16M for AC power and the 110-WS-16MDC
for DC power. These modems have been tested with the WS-16 and are
recommended.
The serial cable (with a null modem adapter) from the WS-16-A is plugged into the
external modem. The modem must be configured to auto answer. The modem is then
plugged into a telephone line and is ready to be called from a remote location.
The remote computer also requires a standard telephone modem (with a speed
capability of at least 9600 baud), and a communications program such as
HyperTerminal or Procomm must be installed. The modem may need reconfiguration to
communicate with the WS-16. The communications parameters are ANSI, 9600, 8-N-1.
Содержание 110-WS-16
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