Helmer Scientific Horizon HLF104-ADA, Operation Manual

Helmer Scientific i.Series

®

 and Horizon Series

™

 Freezer - Undercounter

Operation Manual 

360376/C

16

 View recorded temperature timer.

 Notes

•  The timer denotes the period of time that has elapsed. It does not display the time at which a minimum or maximum  
  temperature occurred.

•  The maximum period of time the timer can record is 99:59 (99 hours and 59 minutes).

1.  Press and hold either the 

Up

 or 

Down 

Arrow button for 1 second.

2. 

While the display is flashing the 

HI

 or 

LO

 value, press and hold the 

SET

 button for 1 second.

3. 

The display will alternate five (5) times between 

CLr

 and a value representing the number of hours and minutes that have  

elapsed since the last recording (example: 12:47 would represent 12 hours and 47 minutes). A single beep will follow to  

indicate exit back to temperature display.

 Clear minimum and maximum temperature recordings.

1.  Press and hold either the 

Up

 or 

Down 

Arrow button for 1 second.

2. 

While the display is flashing the 

HI

 or 

LO

 value, press and hold the 

SET

 button for 1 second and listen for a single beep.

3. 

While the display is flashing the elapsed time since last reset, press and hold the 

SET

 button for 2 seconds. 

CLr

 will be  

displayed followed by a series of 3 beeps to indicate exit back to the temperature display.

 Notes

The minimum and maximum temperature and timer will reset when:

• 

the unit is powered off and battery back-up is not engaged, or

•  after 99 hours and 59 minutes have elapsed.

 Change Freezer Temperature Setpoint

 Note

Default setpoint is -30.0 °C

1.  Press and release 

SEL

 to change to Control mode. The CONTROL lamp will illuminate.

2.  Press and hold 

SET

 to display the current setpoint temperature.

3.  Hold 

SET

 and press the 

Up 

or 

Down 

Arrow as necessary to set the desired setpoint value.

4.  Release all buttons; the setpoint is changed.
5.  Press and release 

SEL

 to return to Monitor mode. The MONITOR lamp will illuminate.

6.3 

Set Parameter Values

1.  Press and hold the 

Up

 and 

Down 

Arrows simultaneously for 3 seconds to enter program mode. 

2.  The LED Display will show .C or .F to indicate Celsius or Fahrenheit.
3.  Press and release 

SEL

 button to scroll through the parameters.

4.  Once the desired parameter is selected, press and hold the 

SET

 button while pressing the 

Up

 or 

Down 

Arrow to select  

the desired value.

5.  Release 

SET

 button. The new setting is saved.

6.  Press and hold the 

Up

 and 

Down 

Arrows simultaneously for 3 seconds to exit program mode.

 Note

Contact Helmer Technical Service to set Hysteresis values.

Horizon Series Operation