Honeywell CN75, User Manual

Page: 34 / 256

22 75 Series Mobile Computer User Guide
About the CK75 Cold Storage Model Heater
CK75 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.
CK75 cold storage models have external Temperature Monitoring enabled by
default to determine when the computer enters a cold storage environment. Once
the ambient temperature drops below the
Heater Enable Temperature , the system
starts a Heater enabled delay timer .
Once the Heater enabled delay timer expires, the system operates in one of two
configurable modes:
• Automatic mode for maximizing battery life in cold storage environments and
average window defrost times.
In freezer heater activation is disabled.
• Preemptive mode (Pre-heat) for minimizing window defrost times with average
battery life in cold storage environments.
In freezer heater activation is enabled.
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
Heater enable temperature .
2. The Heater enabled delay timer expires. A snowflake icon appears in the
status bar.
3. The computer detects a quick rise in the ambient temperature indicating an exit
from cold storage.
If you remove the computer from cold storage before the Heater enabled delay
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 to a heater .
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 in
Enterprise Settings or by editing the computer registry values. To learn more, see
Configure the Heater Feature on page 24.