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3. Alarm operation conditions
(1) Alarm activation conditions
The alarm is activated if the measured value is equal to or exceeds (falls below) the set value.
The upper limit temperature/humidity alarm is activated if the measured value is
≥ the set value.
The lower limit temperature/humidity alarm is activated if the measured value is ≤ the set value.
Example: The upper limit temperature is set to 50.0°C
The upper limit temperature alarm is activated if the temperature rises to 50.0°C.
The alarm operation is cancelled if the temperature falls to 49°C.
(2) Alarm setting range
Temperature: 0.0 to 60.0°C
Humidity: 15.0 to 95% RH
(3) Alarm cancellation conditions
The alarm output has hysteresis of 1°C. The alarm device is constantly under load if it activates or
cancels the alarm operation every time it samples. Hysteresis is used to reduce such load on the
alarm device at temperatures close to the alarm set value.
* Operation example of upper limit temperature alarm (set value is 50.0°C)
ON if the measured temperature exceeds 50°C
OFF if the measured temperature falls below 49°C
•
The upper limit temperature alarm is activated when the temperature rises to 50.0°C.
•
The alarm operation is cancelled when the temperature falls to 49°C.
* Operation example of lower limit temperature alarm (set value is 30.0°C)
ON if the measured temperature falls below 30°C
OFF if the measured temperature exceeds 31°C
•
The lower limit temperature alarm is activated when the temperature falls to 30.0°C.
•
The alarm operation is cancelled when the temperature rises to 31°C.
