How Automatic Mode Works; How Preemptive Mode Works - Honeywell CN75 User Manual

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How Automatic Mode Works

Automatic mode maximizes the cold storage battery life by only turning the heater
on once the following conditions are met in the order listed:
1. The computer detects the ambient temperature has lowered below the set
2. The Chill timer expires. A snowflake
3. The computer detects a quick rise in the ambient temperature indicating an exit
If you remove the computer from cold storage before the Chill timer expires, the
system does not turn on the heater, saving battery power.
Note: When the heaters turn on in Automatic Mode, the icon changes from a
snowflake
In Automatic mode, cold storage battery life may exceed 6 hours (scanning a bar
code every ten seconds). Window defrost times should be a minute or less with
factory default settings implemented.
You can configure the heater operation for your individual environment from the
Heater option in the Settings app or by editing the Heater key values in the
DeviceConfig.xml file. To learn more, see

How Preemptive Mode Works

Preemptive mode minimizes screen defrosting time but slightly reduces cold
storage battery life since the heaters enter a low power pre-heat stage before the
computer detects a rise in the ambient temperature.
The heater only enters the low power pre-heat stage once the following conditions
are met in the order listed:
1. The computer detects the ambient temperature has lowered below the set
2. The Chill timer expires. A snowflake
3. The heater Power on time delay timer expires.
Note: Once the computer enters the pre-heat stage, the icon changes from a
snowflake
75 Series Mobile Computer User Guide
Preemptive mode (pre-heat) for minimizing window defrost times with average
battery life in cold storage environments. Manual mode is enabled.
Heater enable temperature.
from cold storage.
to a heater
Heater enable temperature.
to a heater
icon appears in the status bar.
.
Configure the Heater Feature
icon appears in the status bar.
.
on page 22.
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