Chatsworth Products Remote Infrastructure Management (RIM-1000) - Manual (Page 177)

Remote Infrastructure Management System - Version 1.0 / July 2014
Chatsworth Products, Inc. (CPI) • 800-834-4969 177
A P P E N D I X
B
ANALOG AVERAGING
B.1. Analog Averaging Overview
Analog averaging allows the user to change the averaging method for analog inputs. Normally, the RIM-1000 samples analog points
once a second while keeping track of high and low values for each analog point. After 60 seconds, the average of these readings
and the high and low values for these points are recorded in the minute log.
B.2. How Analog Averaging Affects Values
Analog averaging can be changed through either the Web interface or the EIA-232 interface. An example of how averaging is altered
and how it impacts high and low recordings is shown here.
• Analog averaging value is set to 5.
• The analog point is a temperature sensor.
• Temperature readings are displayed for an eleven-second period.
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 70, High Value = 70, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 70, High Value = 70, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 71, High Value = 71, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 71, High Value = 71, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 72, High Value = 72, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 72, High Value = 72, Low Value = 70
70, 70, 70, 71, 71, 72, 72, 73, 73, 74, 74
Average = 73, High Value = 73, Low Value = 70
Under normal conditions, the average reading would equal 71, the high value would equal 74, and the low value would equal 70.
By changing the averaging method, the average reading is 73, the high value at 73, and the low value for this example remains
the same. In a sense, averaging slows down the sensor response and the rate of change.