O
PERATION
Fluid Warmer
▪
Operator’s Manual
▪
MN-39935
▪
Rev 1
▪
3/19
25
How to Lock and Unlock the Controller
Before you begin
The warmer must be turned on (screen is on).
Background
The controller can be locked to prevent changes being made to the temperature
set-point.
Locking the
controller
To lock the controller, do the following.
Step
Action
1.
Press
the ON/OFF button
and the up arrow button
at the same
time.
The lock indicator
will illuminate.
Unlocking the
controller
To unlock the controller, do the following.
2.
Press
the ON/OFF button
and the down arrow button
at the same
time.
The lock indicator
goes off.
Result
The controller has now been locked or unlocked.
Summary of Contents for EC770L
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