Controller Security
The controller can be locked so that the set-points in the controller cannot be changed.
1. To lock, press UP and DOWN arrows simultaneously until LOC appears (approximately 5 s).
2. To unlock the controller, press up and down arrows simultaneously until UNL appears. Changes are only
accepted when the controller is unlocked.
Changing Temperature Display from C to F
1. Press SET and UP arrow simultaneously until L1 is displayed.
2. Press the UP arrow until UNT is displayed. Press SET then use the UP and DOWN arrows to change
the temperature display from C to F. Press
SET to accept. The display will return to the temperature in
approximately 10 s.
Changing Temperature Display from Decimal to Integer
1. Press SET and UP arrow simultaneously until L1 (first level menu) is displayed. Release.
1. Press SET and UP arrow simultaneously until L2 (second level menu) is displayed.
2. Press the UP arrow until rES is displayed. Press SET then use the UP and DOWN arrows to select Int
(integer) instead of
Dec (decimal). Press SET to accept.
Sleep Function
Press the
SLEEP button to blank the display, or press any button to wake the display. If the unit goes into an
alarm, the display will wake to display the alarm.
Minimum and Maximum Temperature Function
Records the highest and lowest temperatures logged by the probe selected to be displayed. Default display probe
is P3 (product simulation bottle probe).
High and low log display
1. Press the UP arrow to display the highest temperature the freezer has recorded since last reset or power
cycle.
2. Press the DOWN arrow to display the lowest temperature that the freezer has recorded since last reset
or power cycle.
Reset high and low log
1. Press UP or DOWN arrow until recorded temperature is displayed.
2. Press and hold SET until RST is displayed.
Alarming Functions
Set high and low alarms
1. Press and hold SET and UP arrows simultaneously until L1 is displayed. Use the UP and DOWN arrows
to navigate parameters.
2. The low temperature alarm parameter is AlL. Once the parameter is displayed, press SET to display the
low alarm temperature. The alarm temperature will flash on the display. Use the
UP and DOWN arrows
to set the alarm temperature. Press
SET to accept.
3. The high temperature alarm parameter is AlH. Once the parameter is displayed, press SET to display
the high alarm temperature. The alarm temperature will flash on the display. Use the
UP and DOWN
arrows to set the alarm temperature. Press
SET to accept.
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REF1/REF2 Compact Refrigerators
