Helmer iPR456 - Set Parameter Values; Set Temperature Units; Temperature Calibration Offsets

Helmer Scientic i.Series
®
and Horizon Series
™
Pass-Thru Refrigerator Operation Manual
360378/C 19
6.4 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.
Table 3. Parameter Values
Parameter Visual Indicator Range Default
Celsius or Fahrenheit None
˚C,˚F ˚C
High Temperature MONITOR Lamp & HIGH Lamp
-40.0to25.0(˚C);-40to77(˚F) 5.5˚C
Low Temperature MONITOR Lamp & LOW Lamp -40.0to25.0(˚C);-40to77(˚F) 1.5˚C(HB);2.0˚C(HPR)
Monitor Offset MONITOR Lamp -10.0to10.0(˚C);-18to18(˚F) Varies
Control Offset CONTROL Lamp
-10.0to10.0(˚C);-18to18(˚F) Varies
Hysteresis CONTROL Lamp
0.5to2.5(˚C);1to5(˚F) 2.0˚C
6.5 Set Temperature Units
Note
Iftemperatureunitsarechanged,thetemperaturesetpoints,o󰀨setsandalarmsettingsmustberecalibrated.
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 hold the SET button while pressing the Up or Down Arrow to select the desired temperature unit.
4. Release SET button. The new setting is saved.
5. Press and hold the Up and Down Arrows simultaneously for 3 seconds to exit program mode.
6.6 TemperatureCalibrationO󰀨sets
Temperaturecalibrationo󰀨setsindicateanacceptablemarginoferrorbetweentheactualtemperaturevalueandthedesired
temperature value.
Monitor Oset
♦ Adjust if temperature displayed on the monitor does not correspond to the tepmerature reading of a calibrated reference
thermometer in the same probe bottle.
♦ Value is factory-set to match a calibrated reference thermometer.
♦ RefertotheservicemanualforinstructionsregardingchangingtheMonitorO󰀨set.
Control Sensor Oset and Hysteresis
Thecontrolsensora󰀨ectsthereadingofthecontrolprobetemperatureandthereforetheactualtemperatureofthe
refrigerator. This should not be adjusted from the original setting unless directed by Helmer Technical Service.
Hysteresis helps control the refrigeration based on the control probe temperature reading and the set point and should not
be changed from the default setting.
NOTICE
ControlSensorO󰀨setandHysteresisarefactory-presetandshouldnotbechanged.ContactHelmerTechnicalServicefor
instructions regarding changing these values.
Horizon Series Operation