Service manual

7
Bair Hugger Model 750 Temperature Management Unit Service Manual
English 202522A
Check the 3M
TM
Bair Hugger
TM
therapy website to ensure you have the most recent version of this document. www.bairhugger.com reorder #202522A
Overview
When you connect the Model 750 temperature management unit to a grounded power source, the unit
automatically performs the power-on-reset operation described below. Following the power-on-reset
operation, the unit will enter the Standby mode. You can select any operating mode by pressing the
appropriate button on the unit’s control panel. See Figure 1.
Unit Power-On-Reset
e Model 750 temperature management unit performs the following power-on-reset sequence aer you
connect the unit to a grounded power source:
• Performs all self-test functions.
• Illuminates all indicator lights and all pixels in the alphanumeric display momentarily.
• Displays the text “MD 700s” and the soware revision level in the alphanumeric display.
• Produces 3 chirping sounds.
• Enters the Standby mode.
If the temperature management unit loses power for less than 1 second, the unit’s soware will remain in
the operating mode you selected prior to the power loss. If the unit loses power for longer than 1 second, the
unit’s soware will reset when you restore power. e unit will then enter the Standby mode.
Figure 1. Control panel
Alternative Mode button