Helmer Scientific Horizon Series User manual

360127-D/E
Refrigerator Service and Maintenance Manual
i.Series®and Horizon Series™ - Upright
360400/C
Laboratory
i.Series
iLR113-GX, iLR120-GX, iLR125-GX,
iLR245-GX, iLR256-GX
Horizon Series
HLR113-GX, HLR120-GX, HLR125-GX,
HLR245-GX, HLR256-GX
Pharmacy
i.Series
iPR113-GX, iPR120-GX, iPR125-GX,
iPR245-GX, iPR256-GX
Horizon Series
HPR113-GX, HPR120-GX, HPR125-GX,
HPR245-GX, HPR256-GX
Blood Bank
i.Series
iBR113-GX, iBR120-GX, iBR125-GX,
iBR245-GX, iBR256-GX
Horizon Series
HBR113-GX, HBR120-GX, HBR125-GX,
HBR245-GX, HBR256-GX

Document Updates
The document is furnished for information use only, is subject to change without notice and should not be construed as a
commitment by Helmer Scientic. Helmer Scientic assumes no responsibility or liability for any errors or inaccuracies that may
appear in the informational content contained in this material. For the purpose of clarity, Helmer Scientic considers only the most
recent revision of this document to be valid.
Notices and Disclaimers
Condential / Proprietary Notices
Use of any portion(s) of this document to copy, translate, disassemble or decompile, or create or attempt to create by reverse
engineering or otherwise replicate the information from Helmer Scientic products is expressly prohibited.
Copyright and Trademark
Copyright © 2022 Helmer, Inc. Helmer®, i.Series®, i.C³®, Horizon Series™, and Rel.i™ are registered trademarks or trademarks of
Helmer, Inc. in the United States of America. All other trademarks and registered trademarks are the property of their respective
owners. Helmer, Inc., doing business as (DBA) Helmer Scientic and Helmer.
Disclaimer
This manual is intended as a guide to provide the operator with necessary instructions on the proper use and maintenance of
certain Helmer Scientic products.
Any failure to follow the instructions as described could result in impaired product function, injury to the operator or others, or void
applicable product warranties. Helmer Scientic accepts no responsibility for liability resulting from improper use or maintenance of
its products.
The screenshots and component images appearing in this guide are provided for illustrative purposes only, and may vary slightly
from the actual software screens and/or product components.
Helmer Scientic
14400 Bergen Boulevard
Noblesville, IN 46060 USA
www.helmerinc.com Part No. 360400/C
Document History
Revision Date CO Supersession Revision Description
A8 AUG 2019 14861 n/a Initial release.
B 27 JAN 2020 15262 B supersedes A
• Updated frequency for testing and replacing the monitoring system back-up battery.
• Updated Troubleshooting table to include problem resulting from use of GFCI
outlet and possible action.
• Updated caution symbols throughout the document
• Removed Compliance information as it can be found in the Operation Manual.
C 17 JAN 2022 16361 C supersedes B
• Updated clearance information in Location Requirements section.
• Corrected probe error codes in Alarm Indications table.
• Added GFI/GFCI note to Placement and Leveling sections.
• Updated PM schedule regarding replacement frequency of CR2032 battery.
• Updated Remove/Install shelf instructions.
• Updated Refrigerant Charge table.
* Date submitted for Change Order review. Actual release date may vary.

Helmer Scientic i.Series® and Horizon Series™Refrigerator - Upright Service and Maintenance Manual
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Contents
1 About This Manual...................................................................................4
1.1 Intended Audience...............................................................................4
1.2 Model Reference................................................................................4
1.3 Intended Use...................................................................................4
1.4 Safety Symbols and Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Avoiding Injury..................................................................................5
1.6 Model and Input Power ...........................................................................6
1.7 Product Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
i.Series Information............................................................................7
2 InstallationandConguration .........................................................................7
2.1 Location Requirements ...........................................................................7
2.2 Placement and Leveling ..........................................................................7
2.3 Connect Backup Power...........................................................................7
2.4 Prepare for Monitoring............................................................................8
2.5 CongureStorage ...............................................................................11
2.6 Optional Adapter Kits for Medication Dispensing Locks .................................................12
3 Controls...........................................................................................13
3.1 Home Screen and Screensaver ...................................................................13
3.2 Home Screen Functions .........................................................................13
3.3 Alarm Reference ...............................................................................13
3.4 Settings ......................................................................................14
3.5 Sensor Calibration..............................................................................18
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Alarm Tests ...................................................................................24
4.2 Test and Replace Backup Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3 Check Probe Bottle (if installed) ...................................................................27
4.4 Display Board Battery ...........................................................................27
4.5 Upgrade System Firmware .......................................................................27
4.6 Re-apply Silver Conductive Grease to Upper Door Hinge ...............................................27
4.7 Clean the Refrigerator...........................................................................28
5 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1 Refrigerant....................................................................................29
5.2 Remove / Replace Unit Cooler Cover ...............................................................29
6 Troubleshooting....................................................................................31
6.1 Access System Problems ........................................................................31
6.2 Chamber Temperature Problems ..................................................................31
6.3 Alarm Activation Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.4 Condensation Problems .........................................................................32
7 i.Series Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8 Schematics ........................................................................................36
8.1 iBR, iPR and iLR Models.........................................................................36

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Horizon Series Information.....................................................................38
9 InstallationandConguration ........................................................................38
9.1 Location Requirements ..........................................................................38
9.2 Placement and Leveling .........................................................................38
9.3 Connect Backup Power..........................................................................38
9.4 Prepare for Monitoring...........................................................................39
9.5 CongureStorage ..............................................................................42
9.6 Optional Adapter Kits for Medication Dispensing Locks .................................................43
10 Controls...........................................................................................44
10.1 Monitor and Control Interface .....................................................................44
10.2 Alarm Reference ...............................................................................46
10.3 Settings ......................................................................................47
11 Maintenance .......................................................................................51
11.1 Alarm Tests ...................................................................................52
11.2 Test and Replace Backup Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
11.3 Check Probe Bottle (if installed) ...................................................................54
11.4 Clean the Refrigerator...........................................................................54
12 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.1 Refrigerant....................................................................................55
12.2 Remove / Replace Unit Cooler Cover ...............................................................55
13 Troubleshooting....................................................................................56
13.1 Access System Problems ........................................................................56
13.2 Chamber Temperature Problems ..................................................................56
13.3 Alarm Activation Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
13.4 Condensation Problems .........................................................................57
14 Horizon Series Parts ................................................................................58
15 Schematics ........................................................................................61
15.1 HBR, HLR and HPR Mode .......................................................................61
15.2 HBR, HLR and HPR Models (without Access Control) ..................................................62
15.3 HBR, HLR and HPR Models (with Access Control)..................................................... 63
Appendix A: Warranty...................................................................................64

Helmer Scientic i.Series® and Horizon Series™Refrigerator - Upright Service and Maintenance Manual
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1 About This Manual
1.1 Intended Audience
This manual provides information on how to use i.Series®and Horizon Series™upright laboratory, blood bank, and pharmacy
refrigerators. It is intended for use by end users of the refrigerator and authorized service technicians.
1.2 Model Reference
Models are indicated by a distinguishing model number that corresponds to the series, type, number of doors, and capacity of the
refrigerator. For example, “iLR113-GX” refers to an i.Series Laboratory Refrigerator with 1 door and a capacity of 13 cu ft.
1.3 Intended Use
Note
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required
to correct the interference at his own expense.
Helmerrefrigeratorsareintendedforthestorageofbloodproductsandothermedicalandscienticproducts.
1.4 Safety Symbols and Precautions
Symbols found in this document
The following symbols are used in this manual to emphasize certain details for the user:
Task Indicates procedures which need to be followed.
Note Provides useful information regarding a procedure or operating technique when using Helmer
Scienticproducts.
NOTICE Advises the user against initiating an action or creating a situation which could result in damage to
equipment; person injury is unlikely.

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Symbols found on the unit
The following symbols may be found on the refrigerator or refrigerator packaging:
Caution: Risk of damage to equipment or
danger to operator Warning:Crushingofhands/ngers
Caution: Hot surface Warning: Flammable material
Caution: Shock / electrical hazard Refer to documentation
1.5 Avoiding Injury
• Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by
the manufacturer.
• Do not damage the refrigerant circuit.
Review safety instructions before installing, using, or maintaining the equipment.
♦Before moving unit, ensure door is closed and casters are unlocked and free of debris.
♦Before moving unit, disconnect the AC power cord and secure the cord.
♦Never physically restrict any moving component.
♦Avoid removing electrical service panels and access panels unless so instructed.
♦Keep hands away from pinch points when closing the door.
♦Avoid sharp edges when working inside the electrical compartment and refrigeration compartment.
♦Ensure products are stored at recommended temperatures determined by standards, literature, or good
laboratory practices.
♦Proceed with caution when adding and removing product from the refrigerator.
♦Do not open multiple, loaded drawers at the same time.
♦Use manufacturer supplied power cord only.
♦Avoid risk of ignition by using only manufacturer supplied components and authorized personnel when servicing the unit.
♦ Usingtheequipmentinamannernotspeciedbythemanufacturermayimpairtheprotectionprovidedbytheequipment.
♦Ensure product is stored safely, in accordance with all applicable organizational, regulatory and legal requirements.
♦ Therefrigeratorisnotconsideredtobeastoragecabinetforammableorhazardousmaterials.
♦REQUIRED: Decontaminate parts prior to sending for service or repair. Contact Helmer or your distributor for
decontamination instructions and a Return Authorization Number.

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1.6 Model and Input Power
Note
Service information varies depending on the model and power requirements.
Table 1. Model and Input Power
Model Voltage Frequency Current Draw
113 115V 60 Hz 2.3 A
220-240V 50/60 Hz 1.12A
120 115V 60 Hz 2.8A
220-240V 50/60 Hz 1.55A
125 115V 60 Hz 2.8A
220-240V 50/60 Hz 1.55A
245 115V 60 Hz 4.3A
220-240V 50/60 Hz 2.5A
256 115V 60 Hz 4.3A
220-240V 50/60 Hz 2.5A
* Amperage values are subject to change. Refer to the product specication label on your unit for current values.
1.7 Product Labels
Thisinformationappearsontheproductspecicationlabel,locatedontherearoftherefrigeratorbelowtheelectricalbox.
The model also appears on a label located in the chamber on the upper right side wall.
Note
Informationcontainedinthisspecicationlabelvariesdependingonthemodelandpowerrequirements.
Sample Product Specication label.
Label Description
A Model (REF)
B Serial number
C Power requirements
C
B
A

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i.Series Information
2 InstallationandConguration
2.1 Location Requirements
Keep all ventilation openings in the enclosure or, in the structure for building-in, clear of obstruction.
♦ Hasagroundedoutletmeetingtheelectricalrequirementslistedontheproductspecicationlabel.
♦Is clear of direct sunlight, high temperature sources, and heating and air conditioning vents.
♦Has a minimum 8" (203 mm) above and minimum 3” (76 mm) behind the unit for proper ventilation, clearance and feature access.
♦ MeetsspeciedlimitsspeciedforambienttemperatureandrelativehumidityasstatedintheProductSpecicationssectionof
the Operation manual.
2.2 Placement and Leveling
NOTICE
• Helmer does not recommend operating this unit on a GFI/GFCI outlet.
• The evaporation tray located on the rear of the refrigerator may be hot. Do not use the tray as a handle.
• To prevent tipping, ensure the casters are unlocked, leveling feet (if installed) are lifted, and the doors are closed before
moving the refrigerator.
• To avoid damaging refrigerant tubing or risking refrigerant leak, use caution when moving or operating the unit.
1. Ensure door is secured and casters (if installed) are unlocked.
2. Roll refrigerator into place and lock casters.
3. Ensure refrigerator is level.
2.3 Connect Backup Power
The monitoring system and chart recorder each have a backup battery system enabling a period of continuous operation if power is
lost.
Battery life varies by manufacturer, voltage level remaining as well as whether optional Access Control is installed. Providing full
power is available, Access Control is not installed and no battery-related alarms are active, backup power for the monitoring system
is available for up to 20 hours (the Low Battery alarm will activate after approximately 18 hours of battery use). Providing full power
is available, backup power for the monitoring system and optional Access Control system is available for at least 2 hours.
NOTICE
Before installing or replacing batteries, switch the AC power switch and backup battery switch OFF. Disconnect the
refrigerator from AC power.
Notes
• The optional Access Control system uses the monitoring system backup battery for backup power in the event of
power failure.
• The monitoring system will start on backup battery power alone. If the refrigerator was not previously connected to AC
power and the backup battery is switched on, the monitoring system will begin running on backup battery power.
• If AC power is lost, the monitoring system will automatically disable some features to prolong backup battery power.
Data collection will continue until backup battery power is depleted.
The monitoring system backup battery is located on top of the refrigerator. A removable panel
provides access to the backup battery for 113 models. An optional top panel may be installed
on all other models, and must be removed to access the backup battery.
Monitoring system backup battery.
i.Series

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2.4 Prepare for Monitoring
The backup battery switch is switched OFF for shipping. Switch the backup battery switch ON to provide the monitoring system
and optional Access Control system with backup power in the event of an AC power failure.
Temperature Probes
Notes
• Temperature probes are fragile; handle with care.
• 13cf models do not have a secondary probe.
• Remote probes may also be introduced through the existing port and immersed in existing probe bottles.
• Solid ballast (if installed) should be placed in the bracket in a horizontal position.
The number and location of probes varies by model. External probes may be introduced through the existing top port or through a
side access port which is available in some models.
A solid ballast or probe bottle and container of glycerin have been provided with this unit. When using the probe bottle, mix the
glycerin with water to create a solution which simulates the product stored in the refrigerator. The product simulation solution
temperaturereectstheproduct’stemperatureduringnormaloperation.
The probe bottle should contain 4 oz. (120 mL) of product simulation solution at a 10:1 ratio of water to glycerin.
Primary monitor probe Secondary probe Solid ballast (optional)
Fill Probe Bottle (if included)
1. Remove probe(s) from bottle and remove bottle from bracket.
2. Removecapandllwith4oz.(120mL)ofproductsimulationsolution.
3. Install cap and place bottle in bracket.
4. Replace probe(s), immersing at least 2” (50 mm) in solution.
Install Additional Probe Through Top Port
1. Peel back putty to expose port.
2. Insert probe through port into chamber.
3. Insert probe into bottle immersing at least 2" (50 mm), or insert in ballast and secure with thumb screw.
4. Replace putty, ensuring a tight seal.
i.Series

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Chart Recorder (if included)
Note
• For complete information, refer to the Temperature Chart Recorder Operation and Service Manual.
• If the chart recorder has been operating on battery power, the battery should be replaced to ensure the backup source
has proper charge.
The chart recorder has a backup battery system, enabling a period of continuous operation if power is lost. Battery life varies by
manufacturer as well as voltage level remaining. Providing full power is available, backup power for the temperature chart recorder
is available for up to 14 hours.
Set up and Operation
Access chart recorder by pressing and releasing (i.Series except 113 models) or pulling door open (113 models).
Chart Recorder Chart Recorder (13cf models)
Install Battery
Connect leads to battery to provide backup power to chart recorder.
Install / Replace Chart Paper
Notes
• For an accurate temperature reading, ensure the current time is aligned with the time line groove when the chart knob is
fully tightened.
• Contact Helmer Customer Service or your distributor to reorder chart paper.
Chart recorder stylus and time line groove
1. Press and hold Cbutton.Whenstylusbeginstomoveleft,releasebutton.LEDashes.
2. When stylus stops moving, remove chart knob then move knob up and away.
3. Place chart paper on chart recorder.
4. Gently lift stylus and rotate paper so current time line corresponds to time line groove.
5. Hold chart paper in place while making sure chart knob is fully tightened. (Failure to fully tighten the knob can result in paper
slipping and losing time.)
6. Press and hold C button. When stylus begins to move right, release button.
7. Conrmstylusismarkingonpaperandstopsatcorrecttemperature.
8. Calibrate chart recorder to match primary temperature if needed and close recorder door.
i.Series

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External Monitoring Devices
The remote alarm interface is a relay switch with three terminals:
♦Common (COM)
♦Normally Open (NO)
♦Normally Closed (NC)
Terminals are dry contacts and do not supply voltage. Interface circuit is either normally open or normally closed, depending on
terminals used.
Requirements for your alarm system determine which alarm wires must connect to terminals.
NOTICE
• Theinterfaceontheremotealarmmonitoringsystemisintendedforconnectiontotheenduser’scentralalarm 
system(s) that uses normally-open or normally-closed dry contacts.
• Ifanexternalpowersupplyexceeding33V(AC)RMSor30V(DC)isconnectedtotheremotealarmmonitoringsystem’s
circuit, the remote alarm will not function properly and may cause damage to the control board or result in injury to the user.
The terminals on the remote alarm interface have the following maximum load capacity:
♦115V or 230V: 1 Aat 33 V (AC) RMS or 30 V (DC)
Connect to Remote Alarm Interface
1. Locate remote alarm terminals in back of unit on left side of electrical panel.
2. Using a #2 Phillips screwdriver, connect remote alarm wires to appropriate terminals, according to requirements for
your alarm system.
3. Use cable tie to relieve strain on alarm wires (as necessary).
i.Series

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2.5 CongureStorage
NOTICE
• Before moving drawers or shelves, ensure they are completely empty for safe lifting.
• Maximum drawer or shelf load is 100 lbs (46 kg).
Note
Before moving storage components, protect stored items in refrigerator from extended exposure to adverse temperature.
Product Loading Guidelines
When loading your refrigerator, take care to observe the following guidelines:
♦Never load refrigerator beyond capacity.
♦Always store items within shelves or drawers.
♦ Temperatureuniformityismaintainedbyaircirculation,whichcouldbeimpededifunitisoverlled,particularlyat
top or back. Ensure a minimum of 2” (50 mm) clearance is provided below fan.
Note
Productsstackedagainstbackwallmayobstructairowanda󰀨ectperformanceofunit.
Drawers
Remove Drawer
1. Pull drawer out until it stops.
2. On right rail, locate release tab and press downward.
3. While holding right release tab downward, locate release tab on left rail and press upward.
4. Pull drawer free of slides.
Install Drawer
1. Align end guides on drawer with slides.
2. Gently push drawer into chamber until it stops.
3. Pull drawer out until it stops; check for smooth operation.
Move Drawer Slides
1. Using a screwdriver, remove bracket retainers.
2. Tap brackets upward to disengage standards.
3. Remove slides from standards.
4. Insert slides into standard at appropriate height.
5. Tap brackets downward to engage standards.
6. Using a screwdriver, install bracket retainers.
i.Series

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Shelves
Remove Shelf
1. With one hand, lift front edge of shelf from front brackets.
2. With other hand, reach under shelf and bump rear edge of shelf upward to disengage rear brackets.
Install Shelf
1. Insert shelf into chamber, placing it on the rear brackets and with the front edge of the shelf angled upward
approximately 8 inches.
2. Lower the front edge and gently bump rear edge of shelf downward to engage with brackets.
3. Pulling shelf forward gently, shelf should not disengage from rear brackets.
Move Shelf Brackets
1. Using a screwdriver, remove bracket retainers.
2. Tap brackets upward to disengage standards.
3. Remove brackets from standards.
4. Insert brackets into standard at appropriate height.
5. Tap brackets downward to engage standards.
6. Using a screwdriver, install bracket retainers.
2.6 Optional Adapter Kits for Medication Dispensing Locks
Contact Helmer Technical Service or your distributor for service documentation pertaining to medication dispensing locks.
i.Series

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3 Controls
i.Series models are equipped with the i.C3monitoring and control system. The i.C3system combines temperature control and
monitoring into a single user interface.
Note
Please refer to the i.C3User Guide for complete information regarding the i.C3User Interface.
3.1 Home Screen and Screensaver
The Home Screen is the default screen and is displayed when:
♦The Home icon is touched from any other screen.
♦There is no interaction for two minutes on any screen other than those used to enter a password.
Home Screen Screensaver
3.2 Home Screen Functions
Note
Refer to the i.C³ User Guide for options available on all i.C³ screens.
♦View current interior cabinet temperature readings
♦View the current system time and date
♦ Accessanyofthevehomescreenapplications(touchi.C³ APPS for additional applications)
♦View information about current alarm events
♦View whether the monitoring system is running on battery power
♦Mute audible alarms
♦ Turnthechamberlightonando󰀨(ifapplicable)
♦View a graph of the chamber temperature
♦View unit ID
♦Shortcut to Event Log
3.3 Alarm Reference
If an alarm condition is met, an alarm activates. Some alarms are visual only; others are visual and audible. Some alarms are sent
through the remote alarm interface. The table below indicates if an alarm is audible (A), visual (V), or sent through the remote
alarm interface (R).
Table 2. i.Series Alarm Reference
Alarm Alarm Type Alarm Alarm Type
High Temperature A, V, R Low Battery V
Low Temperature A, V, R No Battery A, V, R
Compressor Temperature A, V, R Probe Failure A, V, R
Door Open (Time) A, V, R Communication Failure A, V, R
Power Failure A, V, R
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3.4 Settings
>
Through the i.C³ monitoring and control system, current settings may be viewed and changed. To view settings, touch i.C³ APPS,
Settings. Use a touch-drag motion to scroll up or down to select the desired setting.
Settings screens
Notes
• IftheSettingsscreenispasswordprotected,entertheappropriatepassword.Ifviewingsettingsforthersttime,enterthe
factory default password of “1234”.
• Default values for general settings, alarm settings, and display settings are available in the i.C³ User Guide.
• Changingtemperaturesettingsa󰀨ectsoperationoftherefrigerator.Donotchangesettingsunlessinstructedin
product documentation or by Helmer Technical Service.
Thei.C³temperaturemonitorandcontrollerisprogrammedatthefactory.Tochangeasetting,rstentertheSettingsscreen,then
select the setting. The method for accessing the Settings mode for each setting varies.
Device Control Settings
Device control settings are programmed at the factory. Setpoints can be viewed and changed through the i.C³ monitoring and control
system. To view temperature setpoints, touch i.C³ APPS, Settings, Device Control Settings.
Device Control Settings screen.
Table 3. Setpoints
Setting Initial Factory Value
Temperature Setpoint 4.0 °C
Upper Rail 0.7 °C
Lower Rail -0.7 °C
Delay on Startup 1 minute
Speed During Probe Error 50%
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Temperature Setpoint
The setpoint is the temperature at which the refrigerator operates. The factory default setting for the primary monitor probe is
4.0°C for iLR and iBR models, or 5.0 °C for iPR models.
Notes
• IftheSettingsscreenispasswordprotectedentertheappropriatepassword.Ifviewingsettingsforthersttime,enter
the factory default password of “1234”.
• The Temperature Setpoint can be adjusted through the main Settings screen and Device Control Settings screen.
• Change the setpoint if your organization requires a chamber temperature other than 4.0 °C for iLR and iBR
models, or 5.0 °C for iPR models.
Change Temperature Setpoint
1. Touch i.C³ APPS, Settings.
2. Enter Settings password.
3. Touch minus (–) or plus (+) on Temperature Setpoint spin box to select desired value.
Upper Rail
Upper rail is the maximum control temperature at which the compressor will turn on.
Lower Rail
Lowerrailistheminimumcontroltemperatureatwhichthecompressorwillturno󰀨.
Delay on Start-Up
Compressorstartupisdelayedtoallowthei.C³monitoringandcontrolsystemtostartrst.
Speed During Probe Error
The compressor will run as a percent of maximum if both the monitor and control probe fail.
NOTICE
Upper Rail, Lower Rail, Delay on Start-up and Speed During Probe Error are factory-preset and should not be changed
unless directed by Helmer Technical Service.
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UserCongurableAlarmSettings
The following alarm settings may be changed by the operator. The setpoint for temperature alarms may be changed (where
applicable), as well as the time delay between when the alarm condition commences and when the visual and audible alarms
are initiated.
Table4.UserCongurableAlarms
Alarm Description Default Value Default Time Delay
Primary Monitor Probe High Temp High temperature at which alarm condition occurs 5.5 °C (iBR and iLR models) 0 minutes
6.5 °C (iPR models)
Primary Monitor Probe Low Temp Low temperature at which alarm condition occurs 1.5 °C (iBR models) 0 minutes
2.0 °C (iLR and iPR models)
Compressor High Temp High temperature at which alarm condition occurs 50 °C 0 minutes
Power Failure Time after power failure occurs until alarm sounds - 1 minute
Probe Failure Time after probe failure occurs until alarm sounds - 0 minutes
Door Open (Time) Time door remains open until alarm sounds - 3 minutes
Alarm setting screens
Change an Alarm Setting
1. Touch i.C³ APPS, Settings.
2. Enter Settings password (default password is “1234”).
3. Scroll down and touch Alarm Settings.
4. Touch minus (–) or plus (+) on spin box corresponding to alarm setting to be changed.
5. Touch Home to exit Alarm Settings screen.
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Non-CongurableAlarms
Thefollowingalarmsindicateoperationalconditionswhichrequiretheattentionoftheoperatororaqualiedservicetechnician.
Table5.Non-CongurableAlarm
Alarm Description
Low Battery Monitoring system rechargeable battery voltage is low
Drive Space Low • Triggered if SD card containing downloadable historical date is approaching capacity
• New data will continue to be saved for up to 3 more months
• Data can be downloaded, but doing so will not free up capacity (SD card replacement recommended)
Drive Space Full • Triggered if the SD card containing downloadable historical data has reached its capacity
• No new data will be saved
• Data can be downloaded, but doing so will not free up capacity (SD card replacement required)
Communication Failure Communication Failure 1
• Triggered if communication is lost between i.C³ display board and control board.
• Unit will continue to run with previously saved settings
• Screen will not display temperature changes or alarm conditions
• i.C³ system will continue to reset until connection is re-established
Communication Failure 2
• Triggered if communication is lost between i.C³ display board and internal system memory
• Unit will continue to run with previously saved settings
Communication Failure 3
• Triggered if the database is corrupted
• The database is archived and a new database is automatically created
• Unit will continue to run with previously saved settings
Inverter Communication Failure • Triggered if there is a problem with the refrigeration system
Contact Helmer Technical Service for more information
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3.5 Sensor Calibration
>
Sensor calibration values are programmed at the factory. Calibration values can be viewed and changed through the i.C³
monitoring and control system. To view calibration settings, touch i.C³ APPS, Settings, and select Sensor Calibration.
Settings Screen
Sensor Calibration screens
Notes
• IftheSettingsscreenispasswordprotectedenterappropriatepassword.Ifviewingsettingsforthersttime,enterfactory
default password of “1234”.
• O󰀨setvaluesareadjustedtothetenthofadegree(0.1).
• After one hour of no interaction, the Home screen or Temperature Graph screensaver (if enabled) is displayed.
• TheCompressorProbeo󰀨setisfactory-presetandshouldnotbechangedunlessdirectedbyHelmerTechnicalService.
View Sensor Calibration Values
1. Touch the Settings icon.
2. Enter Settings password.
3. Touch Sensor Calibration.Sensoro󰀨setvaluesandtheircurrenttemperaturereadingsaredisplayed.
4. Touch Home to return to Home screen.
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Primary and Secondary Monitor Probes
Verify primary monitor probe is reading chamber temperature correctly by comparing the probe reading to the temperature measured
by a calibrated reference thermometer. If the probe is not reading correctly, change the value displayed on the monitor.
Notes
• Ensure the product simulation bottle is full of solution.
• 13cf models do not have a secondary probe.
• The probe in the bottle or ballast is connected to the monitoring system and senses chamber temperature. This probe
 activatesthetemperaturealarmsbutdoesnota󰀨ecttemperaturecontrol.
• For units with a solid ballast, Helmer recommends using putty to seal the probe hole when using a thermocouple wire
to calibrate.
Calibrate Primary Monitor Probe (probe bottle installed) Calibrate Primary Monitor Probe (solid ballast installed)
1Remove Primary Monitor Probe from probe bottle. 1Ensure Primary Monitor Probe is securely installed in ballast.
2Unscrew cap from bottle. 2Place calibrated independent reference thermometer in a
remaining probe hole in ballast and tighten thumb screw to
secure. This may involve temporarily removing additional probe
to provide opening for independent reference thermometer.
3Attach calibrated independent reference thermometer traceable
per national standards to Primary Monitor Probe, and place
them in bottle. Probe and thermometer should be immersed at
least 2” (50 mm). 3Place reference thermometer in available probe hole. Tighten
thumb screw until thermometer is secure (Take care not to
over-tighten the thumb screw).
4Close door and allow chamber temperature to stabilize.
5Observe and note thermometer temperature. If independent
thermometer corresponds to displayed temperature, proceed to
Step 11.
4Close the door and allow the chamber temperature to stabilize.
5Observe and note thermometer temperature. If independent
thermometer corresponds to displayed temperature, proceed to
Step 11.
6Subtract displayed temperature reading from independent
probereadingtodetermineo󰀨setvalueadjustment. 6Subtract displayed temperature reading from independent
probereadingtodetermineo󰀨setvalueadjustment.
7Touch, i.C³ APPS, Settings 7 Touch, i.C³ APPS, Settings
8Enter Settings password (default password is “1234”). 8Enter Settings password (default password is “1234”).
9Touch Sensor Calibration.9Touch Sensor Calibration.
10 Touch minus (-) or plus (+) on corresponding spin box to
increase or decrease value by value calculated in Step 6.
The message “New Setting Saved” appears next to spin box.
10 Touch minus (-) or plus (+) on corresponding spin box to
increase or decrease value by value calculated in Step 6.
The message “New Setting Saved” appears next to spin box.
11 Remove thermometer from probe. 11 Loosen thumb screw and remove calibrated independent
reference thermometer from ballast.
12 Replacebottlecap,ensuringatightt.
13 Place probe in bottle, immersing at least 2” (50 mm). 12 Replace any additional probe that may have been removed
previously,andtightenthumbscrewensuringasnugt.
13 Replace any removed putty.
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