Date: 2021-08-17
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Sensor range
The sensor range defines the range that is measured.
Depending on the sensor, the Thresholds may vary, in this case it is a temperature sensor with the measuring range of 0-100°C:
The 0 defines 0°C and the 100°C - if you are operating a deep-freeze room, you would have to adjust the value downwards
accordingly, whereas in a generator room in the desert, temperatures higher than 80°C could well be a realistic value.
Let us do an example configuration: In this example configuration, let's say a room will be monitored whose equipment is
allowed to operate between 5°C and 45°C. To adapt the scale to the realistic value, one would therefore design the scale from
0°C to 60°C approximately. That should be should fit to the equipment.
Pre-Alarm and Alarm
The pre-alarm is the alarm instance where increased vigilance is required. - Although problems do not yet occur in this area, the
temperature is remarkably high. Alarm is the instance where an immediate response should be made, otherwise the equipment
may be damaged.
In this example, the lower limit for operation is 5°C - this raises two interesting questions:
1.
What is the average temperature if the technical equipment is in use?
2.
How temperature fluctuations due to operation and environmental influences are to be assessed.
A poorly ventilated or heated room can reach 50°C in summer, while in winter the temperature is around freezing point. If the
general temperature averages 15°-20°C, the lower and upper values can be defined very well:
The pre-alarm should be triggered BEFORE the actual alarm. This means at about 10°C - the sending of emails, for example,
can be stored there later as a job event. The alarm, on the other hand, is triggered at 6°C. Here, for example, the shutdown of
the system can be defined in companion with alarm and notification emails.
The upper range is defined similarly: The VOR alarm is set at 40°C, while the alarm itself is triggered at 43°C and initiates
appropriate emergency measures.
The complete configuration line will look like this line:
The checkbox defines whether this value is activated or ignored.
After pressing Apply, the results can be seen in within the sensor monitor:
➔
Location description
➔
Checkbox Alarm (high)
➔
Checkbox Pre-Alarm (high)
➔
Checkbox Pre-Alarm (low)
➔
Checkbox Alarm (low)
➔
The current temperature measured by this sensor.
