Program Menu > Lower and Upper Limits
Temprecord Mk III has a the ability to compare the logged temperature and humidity values against lower and upper limits, and report whether the limits have been exceeded via the red and green LED on the logger.
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On the LCD logger the behaviour of the LED's when limits are transgressed is configurable - i.e. when you program a logger you can determine whether the LED's indicate the state of the limits. See Enable Status LEDs for more information. |
The Program/Parameters form allows you to specify these limits. Enter the limits in the same units as the current setting of the units option (°C or °F). In the case of the humidity the units are % RH (percentage relative humidity).
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Temprecord will complain if you try to enter an upper or lower limit that is outside the operating range of the logger. Earlier versions of the Temprecord program allowed you to enter limits outside the operating range. This is inadvisable as the logger will not detect instances of the temperature exceeding the limits. |
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When Temprecord reads the data from a logger and displays it in graph view mode, the limits that were programmed in the logger are shown on the graph. These limits are also used in the values view and statistics view. See the topic how the limits are used when Temprecord displays data for more information |
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In some situations, the logger must be started while the temperature and/or humidity are outside the limits and it is undesirable for this situation to be reported as such. Also, there are applications where a brief excursion outside the limits may be expected, and is not to be reported as an out-of-range error. See the parameters enable safe range and limit delay for more information. |
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