Honeywell Dolphin CH80, User Manual, Page: 32 / 104

22 Dolphin CN80 Mobile Computer
About the CN80 Cold Storage Model Heater
CN80 Cold Storage (CS) models come equipped with touch screen and scan
window heaters to support extended use in freezers as well as transitions into and
out of freezer areas. The heaters can be set to turn On automatically to defrost the
touch screen and scan window based on external temperature changes and timers
or the user can control the heaters by manually turning them On or Off.
• Automatic mode
This is the default mode of operation for the heaters. Automatic mode maxi-
mizes battery life in cold storage environments and provides average window
defrost times. 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.
If your application requires faster defrost times, you can enable the Preemptive
Heating (pre-heat) feature to minimize defrost times with average battery life
in cold storage environments. This feature 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.
In Automatic mode with Preemptive Heating enabled, the cold storage battery
life ranges from a maximum of 6 hours to a minimum of 1.5 hours depending
on the heater
Preemptive delay time set. The window defrost times range from
zero to a maximum of one minute with factory default settings.
• Manual mode
This mode is disabled by default. When enabled, heater activation is controlled
solely by the user. No temperature monitoring and timers are used to control
the heaters. The user must manually turn the heaters On or Off.
Use the Settings app to configure the Heater feature. To learn how, see Heater
Parameters on page 24.
How Automatic Mode Works
Automatic heater management saves power since the heaters are automatically
controlled by the system based on cold storage entry/exit detection.
Cold Storage Entry Detection
In Automatic mode, cold storage entry detection occurs when the computer
sensors identify a drop in ambient temperature below the defined Heater enable
temperature . The system starts the Chill timer in response to cold storage entry
detection.
Note:
If you remove the computer from cold storage before the Chill timer expires, the timer
stops and the system does not turn On the heaters, saving battery power.
A snowflake icon appears in the status bar when the Chill timer expires.