Helmer Scientific i.Series User manual

360128-D/C
Laboratory / Pharmacy
i.Series
iLR104-ADA, iLR105 (Version D)
Horizon Series
HLR104-ADA, HLR105 (Version D)
Blood Bank
i.Series
iB104-ADA, iB105 (Version D)
Horizon Series
HB104-ADA, HB105 (Version D)
Refrigerator Operation Manual
i.Series®and Horizon Series™ - Undercounter
360128-D/D

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 the information from Helmer Scientic products is expressly prohibited.
Copyright and Trademark
Copyright © 2016 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
ISO 13485:2003 CERTIFIED Part No. 360128-D/Rev D
Document History
Revision Date CO Supersession Revision Description
A 23 JAN 2013 8187 n/a Initial release.
B26 NOV 2013* 8934 B supersedes A
• Removed all references to mechanical Access Control.
• Added references to magnetic Access Control.
• Corrected shipping location of monitoring system backup battery for Horizon Series.
C06 MAR 2015 10318 C supersedes B
• Updated instruction in Section III, Items 9.2 through 9.7.1 to reect use of
monitor and control interface with new Min/Max temperature recording feature.
• Added Document Updates, to Document History page.
• Added Condential / Proprietary Notice, Section I, Item 1.4 and Disclaimer,
Section I, Item 1.5
• Moved Maintenance Schedule, i.Series®Components and Horizon Series™
Components to Appendices A, B and C.
D01 FEB 2016 11534
D supersedes C
and 360167-D
Rev A, B, C
• Combined all undercounter product model information in one manual.
• Added Product Loading Guidelines in response to CAPA 10843.
• Updated the AC power cord install instructions.
* Date submitted for Change Order review. Actual release date may vary.

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Contents
1 About this Manual ................................................................................................ 4
1.1 Safety Precautions and Symbols .................................................................................. 4
1.2 General Recommendations ...................................................................................... 5
2 Installation ...................................................................................................... 6
2.1 Location ..................................................................................................... 6
2.2 Placement and Leveling ......................................................................................... 6
2.3 Stacked Undercounter Units ..................................................................................... 6
2.4 AC Power Cord................................................................................................ 6
2.5 Temperature Probes............................................................................................ 6
2.6 Chart Recorder (if included) ...................................................................................... 7
3 i.Series®Operation ............................................................................................... 9
3.1 Initial Power-up................................................................................................ 9
3.2 Operation ................................................................................................... 10
3.3 Change Temperature Setpoint ................................................................................... 10
3.4 Set Alarm Parameters ..........................................................................................11
3.5 Active Alarms .................................................................................................11
3.6 Mute and Disable Active Alarms.................................................................................. 12
3.7 Light Operation............................................................................................... 12
4 i.Series®Access Control (Optional)................................................................................. 13
4.1 Set Up ..................................................................................................... 13
4.2 Open Refrigerator with Access Control ............................................................................ 14
5 Horizon Series™ Operation ....................................................................................... 15
5.1 Initial Power Up .............................................................................................. 15
5.2 Display Minimum and Maximum Monitor Temperature Recordings ....................................................... 15
5.3 Set Parameter Values ......................................................................................... 17
5.4 Set Temperature Units ......................................................................................... 17
5.5 Set Alarm Setpoints (Parameters) ................................................................................ 17
5.6 Temperature Calibration Offsets.................................................................................. 17
5.7 Active Alarms ................................................................................................ 18
5.8 Mute and Disable Audible Alarms................................................................................. 18
5.9 Light Operation............................................................................................... 18
6 Horizon Series™ Access Control (Optional) ......................................................................... 19
6.1 Setup ...................................................................................................... 19
7 ProductSpecications ........................................................................................... 20
7.1 Operating Standards ........................................................................................... 20
8 Compliance .................................................................................................... 22
8.1 Regulatory Compliance ........................................................................................ 22
8.2 WEEE Compliance............................................................................................ 22
9 Preventive Maintenance .......................................................................................... 23
Appendix A......................................................................................................... 24
i.Series Parts .................................................................................................... 24
Appendix B......................................................................................................... 25
Horizon Series Parts .............................................................................................. 25

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Helmer Scientic i.Series® and Horizon Series™Refrigerator - Undercounter Operation Manual
360128-D/D 4
1 About this Manual
This manual provides information on how to use i.Series®and Horizon Series™undercounter laboratory, blood bank, and pharmacy
refrigerators. It is intended for use by end users of the refrigerator and authorized service technicians.
Models are indicated by a distinguishing model number that corresponds to the series, type, number of doors, and capacity of the
refrigerator. For example, “iLR105” refers to an i.Series Laboratory Refrigerator with 1 door and a capacity of 5 cu ft and HLR104
refers to Horizon Series Laboratory Refrigerator with 1 door and a capacity of 4 cu ft.
Generic references are used throughout this manual to group models that contain similar features. For example, “105 models”
refers to all models of that size (iB105, HB105, iLR105, HLR105) while "104 models" refers to all models of that size (iB104,
HB104, iLR104, HLR104). This manual covers all undercounter refrigerators, which may be identied singly, by their size, or by
their respective “Series.”
1.1 Safety Precautions and Symbols
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.
CAUTION Advises the user against initiating an action or creating a situation which could result in damage
to equipment or impair the quality of the products or cause minor injury.
WARNING Advises the user against initiating an action or creating a situation which could result in damage
to equipment and serious personal injury to a patient or the user.
Manufacturer
Authorized representative in the European Community
Symbols found on the units
The following symbols may be found on the refrigerator or refrigerator packaging:
CE Mark (European units only) Earth / ground terminal
Caution: Risk of damage to equipment or
danger to operator
Protective earth / ground terminal
Caution: Hot surface Compliance with Restriction of Hazardous
Substances Directive
Caution: Shock / electrical hazard Compliance with European Union Directive
WEEE 2002/96/EC applicable provisions.
Caution: Unlock all casters
EC REP

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Avoiding Injury
Review safety instructions before installing, using, or maintaining the equipment.
♦Before moving unit, ensure door is closed and casters (if installed) 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 biological materials are stored at recommended temperatures determined by standards, literature, or good
laboratory practices.
♦ Proceed with caution when adding and removing samples from the refrigerator.
♦Do not open multiple, loaded drawers or baskets at the same time.
♦Use manufacturer supplied power cord only.
♦ Using the equipment in a manner not specied by Helmer Scientic may impair the protection provided by the equipment.
♦Ensure biological materials are 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.
CAUTION
Decontaminate parts prior to sending for service or repair. Contact Helmer Scientic or your distributor for
decontamination instructions and a Return Authorization Number.
1.2 General Recommendations
Intended Use
Helmer refrigerators are intended for the storage of blood products and other medical and scientic products.
General Use
Allow refrigerator to come to room temperature before switching power on.
During initial startup, high temperature alarm may sound while refrigerator reaches operating temperature.
Initial Loading
Allow the refrigerator to reach room temperature before powering on. Allow chamber temperature to stabilize at the setpoint before
storing product.
Note
Do not overload top drawer, basket, or shelf such that airow from the unit cooler is obstructed.
Product Loading Guidelines
When loading your refrigerator, take care to observe the following guidelines:
♦Never load refrigerators beyond capacity.
♦Always store items within shelves, drawers or baskets.
♦ Temperature uniformity is maintained by air circulation, which could be impeded if unit is overlled, particularly at the top or
back. Ensure proper clearance is provided below the fan.
Note
Products stacked against back wall may obstruct air ow and affect performance of unit.

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2 Installation
2.1 Location
♦ Has a grounded outlet meeting the electrical requirements listed on the product specication label.
♦Is clear of direct sunlight, high temperature sources, heating vents, and air conditioning vents.
♦Has a minimum of 3” (76 mm) of space behind the refrigerator for clearance and feature access.
♦ Meets the limits specied for ambient temperature (15 °C to 32 °C) and relative humidity.
2.2 Placement and Leveling
CAUTION
• To prevent tipping, ensure the casters (if installed) are unlocked and the door is closed before moving the refrigerator.
• Do not sit, lean, push or place heavy objects on top surface.
1. Move refrigerator into place. Lock casters if installed.
2. Ensure refrigerator is level.
Note
Helmer recommends the use of leveling feet (unless casters are installed) and wall and oor brackets (PN 400472-2) for
stabilization. Contact Helmer Technical Service for parts and instruction.
2.3 Stacked Undercounter Units
CAUTION
• For stacked conguration, both units must have leveling feet installed.
• Back brace bars and front stabilizing brackets must be installed (Blue - PN 400821-1; Stainless Steel - PN 400821-2)
• When stacking units, place the heavier unit on the bottom.
• Do not open multiple loaded drawers or baskets at the same time.
Contact Helmer or your distributor for more information regarding the stacking kit and methods to secure both units to the wall
and / or oor.
2.4 AC Power Cord
CAUTION
Use manufacturer supplied power cord only.
Install power cord
If packaged with modular cord, insert plug securely into the refrigerator power receptacle prior to connecting to grounded
outlet.
2.5 Temperature Probes
Probe bottle along with a container of glycerin have been provided with this unit. The glycerin is mixed withwater 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.
Note
Temperature probes are fragile; handle with care.
CAUTION
Failure to ll probe bottles or keep probe bottles lled to the appropriate level may not allow the chamber temperature to
stabilize at the refrigerator setpoint or the chamber temperature to display higher or lower than the actual temperature.

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Primary Probe
The primary probe bottle is located at the top left side of the refrigerator.
Primary probe
Fill Temperature Probe Bottle
Note
Use approximately 4 oz. (120 mL) of product simulation solution (10:1 ratio of water to glycerin)
Glycerin packet included in refrigerator box.
1. Remove all probes from bottle and remove bottle from bracket.
2. Remove cap and ll with approximately 4 oz. (120 mL) of product simulation solution.
3. Secure cap on bottle and place in bracket.
4. Replace probes, immersing at least 2” (50 mm) in solution.
2.6 Chart Recorder (if included)
Note
For complete information, refer to the Temperature Chart Recorder Operation and Service Manual provided with this unit.
The chart recorder has a back-up battery system enabling a period of continuous operation if power is lost. Battery life varies by
manufacturer as well as voltage level remaining. If full batter power is available, back-up power for the temperature chart recorder
is available for up to 14 hours.
Note
If chart recorder is operated on battery power, the battery should be replaced to ensure the back-up source has proper
charge.
Prior to use:
Place the chart recorder probe in bottle with primary probe.

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Set up and Operation
Access the chart recorder by pulling the door open.
Install battery
Connect the leads to the battery to provide back-up power to the chart recorder.
Install / Replace Chart Paper
Note
For accurate temperature reading, ensure the current time is aligned with the time line groove when the chart knob
is fully tightened.
Chart recorder stylus and time line groove
1. Press and hold C button. When stylus begins to move left, release button. The LED ashes.
2. When stylus stops moving, remove chart knob then move knob up and away from chart paper.
3. Place new 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 the chart knob is fully tightened. (Failure to fully tighten the knob can result in paper
slipping and losing time.)
6. Conrm the temperature range is set to the correct value.
7. Press and hold C button. When the stylus begins to move right, release the button.
8. Conrm the stylus is marking the temperature correctly.
Power Supply
The temperature chart recorder uses AC power when the system is operating. If AC power fails, the recorder continues to record
temperature with back-up power provided by the nine volt battery.
♦ The LED indicator glows green continually when main power is functioning and the battery is charged.
♦ The LED indicator glows red continually when main power is functioning and the batteries is either not installed or needs to be
replaced.
♦ The LED indicator ashes red to indicated the recorder is receiving power only from the back-up battery.
♦ The LED indicator ashes during chart paper change mode.

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3 i.Series®Operation
3.1 Initial Power-up
1. Plug the power cord into a grounded outlet that meets the electrical requirements on the product specication label.
2. Switch AC ON/OFF switch ON.
3. Switch back-up battery switch ON.
Notes
• For models equipped with optional Access Control, the back up battery is turned ON with a key switch.
• The Start screen is displayed when the i.C3is powered on. The i.C3will take approximately 2-5 minutes to boot up.
Start screen
On the Language screen, touch the Language button, then select the preferred language from the drop-down menu.
If English is the preferred language, touch the Home button.
Language screen
If an alarm sounds, temporarily mute the alarm by touching the Mute button.
Home screen - alarm muted
Active alarms are displayed on the Home screen. If an alarm condition other than High Temperature occurs, refer to the
service manual for troubleshooting.

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3.2 Operation
Notes
• Refer to the i.C3 User Guide for complete information regarding the i.C3 User Interface
• The i.C3 Home screen displays temperature and alarm information, and provides icons to gain access to other
functions of the i.C3.
• After two minutes of inactivity, the screensaver will be displayed. To return to the Home screen, touch the screensaver.
Home screen Home screensaver (touch to return to Home screen)
3.3 Change Temperature Setpoint
> > Enter the Settings password. Scroll down to select Temperature setpoints. Touch + or - on the spin box to
change the value.
Settings screen Temperature Controller Programs screen
Notes
• Default Settings password is 1234.
• Default setpoint is 4.0 °C.

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3.4 Set Alarm Parameters
> > Enter the Settings password. Scroll down to select Alarm Settings. Touch + or – on spin box to set each
alarm parameter.
Settings screen Alarms screen
Alarm settings control the conditions and timing of alarm condition indicators displayed on the i.C³ Home screen.
3.5 Active Alarms
Home screen with active alarm
Table 1. i.Series Active Alarms
Alarm Description
High Temperature Chamber temperature reading is above high temperature alarm
setpoint
Low Temperature Chamber temperature reading is below low temperature alarm setpoint
Low Battery Rechargeable battery voltage is low
No Battery Battery is not connected
Power Failure Power to unit has been disrupted
Probe Failure Probe not functioning properly
Door Open Door is open beyond user-specied duration
Compressor
Temperature
Compressor temperature reading is above high temperature alarm
setpoint
Communication Failure
Messages
1, 2, 3
1 Communication lost between i.C³ display board and control board
2 Communication lost between i.C³ display board and internal
system memory
3 Corrupt database

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3.6 Mute and Disable Active Alarms
Audible alarms may be muted by touching the Mute icon to set delay.
Unmuted Muted
3.7 Light Operation
Press Light Icon to turn LED lights ON or OFF.
Auto ON/OFF feature can be congured in Settings.
Light ON/OFF
Table 2. i.C3
®Icon Reference Guide
Alarm Description Alarm Description Alarm Description
Home Mute Icon Transfer
Event Log Download Display Brightness
Settings Upload Scroll Arrows
i.C3Applications Light On/Off Access Control
Back Arrow Temperature
Graph Access Control Log
Alarm Conditions Information Log Contact Helmer
Alarm Test Compressor Log Battery Power

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4 i.Series®Access Control (Optional)
Allows user-specic secure access to the refrigerator.
Notes
• During a power failure, the optional Access Control lock will remain locked until battery power is depleted or until the
back-up battery key switch is switched OFF.
• Switching the back-up battery key switch OFF will disable the monitoring system during a power failure.
• During a power failure, switch the battery back-up switch OFF and use the mechanical door key to provide secure
storage for refrigerator contents.
• Refer to i.C3 User Guide for complete information regarding Access Control.
4.1 Set Up
Congure and manage user-specic accounts to allow controlled access to the refrigerator.
> > > Access Setup
Access Control Setup password screen
Enter the supervisor PIN to set up Access Control. Select the Add User button and follow the on-screen prompts to set up users.
Notes
• Initial factory supervisor PIN = 5625
• The supervisor PIN cannot be deleted, and should be changed to prevent unauthorized user ID setup. The supervisor
PIN does not allow access to the unit. At least one user ID must be set up to gain access to the unit.
Access Control Setup screen

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4.2 Open Refrigerator with Access Control
Access Control keypad
Enter a valid PIN using the keypad.

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5 Horizon Series™ Operation
5.1 Initial Power Up
1. Plug the power cord into a grounded outlet that meets the electrical requirements on the product specication label.
2. Switch AC ON/OFF switch ON.
3. Remove the 9 V battery from the literature box and install it.
4. Press Down Arrow (Mute) if high temperature alarm sounds.
Notes
• For models equipped with the optional Access Control, switch the back-up battery key switch ON
• During a power failure, the back-up battery continues to provide power to the optional Access Control lock (if equipped).
If the back-up battery is not functioning, the optional Access Control lock will not secure the door.
• If an alarm condition other than High Temperature occurs, refer to the service manual for troubleshooting.
Horizon Series™ temperature monitor and control interface
5.2 Display Minimum and Maximum Monitor Temperature Recordings
Notes
• This feature is standard on Horizon Series™ models with serial numbers of 2015494 or higher. Some exceptions may
exist. For conrmation on your unit, please contact Helmer Technical Service.
• This feature only applies to the primary probe.
• Units that do not include the minimum and maximum recording feature will not display .C or .F when entering the program
mode.
The minimum and maximum recording feature allows the user to view a minimum temperature occurrence and a maximum
temperature occurrence within a given period of time. The timer provides a time reference in which those temperatures occurred.
View minimum temperature recording
1. Press and hold the Down Arrow button for 1 second and listen for a single beep.
2. The display will alternate between LO and a valid temperature value ve (5) times followed by a single beep to indicate
exit back to the temperature display.
View maximum temperature reading
1. Press and hold the Up Arrow button for 1 second and listen for a single beep.
2. The display will alternate between HI and a valid temperature value ve (5) times followed by a single beep to indicate
exit back to the temperature display.
High and Low Temp Lamps LED Display SEL Button CONTROL and MONITOR Lamps
UP and DOWN Arrows SET Button

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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. or
2. While the display is ashing the HI or LO value, press and hold the SET button for 1 second.
3. The display will alternate ve (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. or
2. While the display is ashing 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 ashing 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 Refrigerator Temperature Setpoint
Note
Default setpoint is 4.0 °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 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.

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5.3 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.
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 (HLR & 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) Varies
5.4 Set Temperature Units
Note
If temperature units are changed, the temperature setpoints, offsets 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 will display .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.
5.5 Set Alarm Setpoints (Parameters)
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 SEL until HIGH TEMP or LOW TEMP and MONITOR lamps ash.
4. Hold SET, then press Up or Down Arrow to change the setpoint.
5. Release SET button. The new setting is saved.
6. Press and hold Up and Down Arrows simultaneously for 3 seconds to exit program mode.
5.6 Temperature Calibration Offsets
Temperature calibration offsets indicate an acceptable margin of error between the actual temperature value and the desired
temperature value.
Monitor Offset
♦Value is factory-set to match a calibrated reference thermometer.
♦Refer to the service manual for instructions regarding changing the Monitor Offset.
Control Sensor Offset and Hysteresis
The control sensor affects 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.

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360128-D/D 18
NOTICE
Control Sensor Offset and Hysteresis are factory-preset and should not be changed. Contact Helmer Technical Service for
instructions regarding changing these values.
5.7 Active Alarms
The controller displays temperature and alarm information.
Table 4. Horizon Series Active Alarms
Alarm Visual Indicator Description
High Temperature HIGH TEMP lamp ashes Chamber temperature reading is above high
temperature alarm setpoint
Low Temperature LOW TEMP lamp ashes Chamber temperature reading is below low
temperature alarm setpoint
Power Failure ”PoFF” appears on display Power to unit has been disrupted
Probe Failure “Prob” appears on display Probe not functioning properly
Door Open < 3 min. DOOR ALARM lamp lights Door is open (less than three minutes)
Door Open > 3 min. DOOR ALARM lamp ashes Door has been open 3 minutes or longer*
*Audible alarm will sound after door is open for 3 minutes.
5.8 Mute and Disable Audible Alarms
Note
Muting audible alarms does not disable alarm lamps or signals sent through the remote alarm interface.
♦ Press Down Arrow (Mute) to mute audible alarms.
♦To disable all audible alarms, insert the key in the Alarm Disable switch and turn.
5.9 Light Operation
The light switch is located on the monitoring and control panel and controls the LED light within the chamber.

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6 Horizon Series™ Access Control (Optional)
Allows user-specic secure access to the refrigerator.
Notes
• During a power failure, the optional Access Control lock will remain locked until battery power is depleted or until the
back-up battery key switch is switched OFF.
• During a power failure, switch the battery back-up switch OFF and use the mechanical door key to provide secure
storage for refrigerator contents.
• Refer to Horizon Series Access Control manual for complete information.
6.1 Setup
The Access Control keypad was programmed at the factory with a master code (0000). The master code is used to program the
keypad and enter user codes. The master code also releases the door lock.
Note
The master code can not be deleted, and should be changed to prevent unauthorized user code setup
Enter unique user codes for up to 100 users. Each user code is stored with a specic record location number. Keep a log of the
location numbers and user codes with users’ names.
Add User Code
1. Enter the master code
2. Press 1to initiate user code programming function
3. Enter the location number (00 - 99)
4. Enter the user code (4 - 9 digit number)
5. Press *to save changes and return to normal operation
Delete User Code
1. Enter the master code
2. Press 1to initiate user code programming function
3. Enter the location number (00 - 99)
4. Press *to save changes
Open Refrigerator with Access Control
321
654
987
#0
1. Enter the user code
2. Press #