Conservation Logger Temperature, Rh And 5V Input Logger; Description - ACR Electronics SmartReader Plus Reference Manual

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SmartReader Plus Data Loggers

1.14

Conservation Logger Temperature, RH and 5V Input Logger

The Conservation Logger is a self-contained temperature and relative humidity logger with two

external channels for use with a variety of sensors.

1.14.1

The Conservation Logger is designed to monitor temperature and humidity (internal or

external) and determine if the readings measured are out of tolerance based on preset

thresholds. It is equipped with an LED light that will flash its alarm if measurements raise

above or below set limits.

Alarm Flash Mode

When the Alarm Flash mode is selected the logger will check the current sample and

determine if it is above or below the high or low alarm threshold values. If the sample is out of

tolerance then the logger will start a delay timer to allow the environment to return to normal

limits. If the environment does not return to normal limits the alarm will be triggered and the

Alarm LED will begin to flash.

Once an alarm is triggered it is locked and will not clear until the logger is cleared or set up.

Flash Delay

The Flash Delay is the maximum allowable period of time (based on sample periods) for a

channel to be out of tolerance before alarming. The Flash Delay is started when a channels

current sample is found to be out of the preset alarm limits. Once the delay timer is started it

will count down from the preset number of samples to zero. When zero is reached the alarm

will be locked and the Alarm LED will begin to flash.

The Flash Delay timer will be reset if the channel that reported the alarm returns to normal

operating conditions (within the preset tolerances) before the timer reaches zero.

If a threshold is crossed again the delay timer will restart.

Figure 11-1: Conservation Logger

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