Installation guide

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Cooper Bussmann BU-905U-L Wireless I/O Configuration Manual
BU-Config lets you set the following options:
Feature Description Example
Thermocouple Debounce For analog signals (e.g. thermocouple, analog 4-20mA, and
module temperature), debounce time is the product of the
number of samples and the sample period. The signal must
differ from the previous value by the sensitivity value for this
duration to register a ‘change of state.’
This means that changing the analog sample time will also
change the debounce time. For analog signals a value of 0 or 1
generates the quickest response, and 255 the slowest response.
Thermocouple Sample Period This sets the period between samples of the thermocouple input.
A smaller value will cause mappings using this input to be
triggered more frequently (i.e., quicker response).
A larger value will cause mappings using this input to be
triggered less frequently (i.e., less power consumption).
Thermocouple Warm-Up Time The amount of time the analog circuits are turned on before
sampling the thermocouple input.
For normal thermocouples, these can be set to the minimum
value (i.e., 0.08 seconds).
If using an external (millivolt) device powered from the +24V
supply that requires a longer period to settle, you may need to
set this value to allow the external device to settle.
Unit temp Sample Period The time between samples of the internal temperature sensor.
The module temperature (Cold junction temperature) is sampled
every time the thermocouple input is sampled. You will only need
to set this field if you want to sample the temperature more often
than you sample the thermocouple, including when you are not
using a thermocouple.
3A1579Rev1.4