Cole-Parmer • 625 East Bunker Court • Vernon Hills, IL 60061-1844 • ColeParmer.com

OPERATION MANUAL

Laboratory Refrigerator

Model: 52412-00,-01,-02,-03,-04,-05,-06,-07,-08,

-09,-10,-11,-12,-13,-14

Before using this product, read this entire Operator's Manual carefully. Users should follow all of the Operational Guidelines contained in this Manual and take all necessary safety precautions while using this product. Failure to follow these guidelines could result in potentially irreparable bodily harm and/or property damage.

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Table of Contents

1.0 Safety .................................................................. - 2 -

1.1 How to use the Manual. ---------------------------------------------------------- - 2 -

1.2 Symbols used in this manual. --------------------------------------------------- - 2 -

1.3 Exemption for responsibility. ---------------------------------------------------- - 2 -

1.4 Warning statement. ---------------------------------------------------------------- - 3 -

1.5 Caution statement ----------------------------------------------------------------- - 3 -

1.6 Safety Labels------------------------------------------------------------------------ - 4 -

2.0 Functional Description ...................................... - 5 -

2.1 Introduction -------------------------------------------------------------------------- - 5 -

2.2 Construction ------------------------------------------------------------------------- - 6 -

3.0 Unit components ............................................... - 7 -

3.1 Unpacking and Inspecting. ------------------------------------------------------ - 7 -

3.2 Preparing the Location ----------------------------------------------------------- - 8 - 3.2.1 Environmental setting ........................................................................................................ - 9 -

3.3 Locking/Unlocking Casters & Leveling the unit---------------------------- - 10 -

3.4 Power connection ----------------------------------------------------------------- - 11 -

3.5 Pre start-up checks --------------------------------------------------------------- - 12 -

4.0 Operation .......................................................... - 13 -

4.1 Controller – Name and function ---------------------------------------------- - 13 -

4.2 How to operate Controller ------------------------------------------------------ - 15 - 4.2.1. Temperature setting ......................................................................................................... - 15 -

4.2.2. Temperature Alarm setting (High Alarm/ Low Alarm) ................................................... - 16 -

4.2.3. Operation .......................................................................................................................... - 16 -

4.2.4. Display of abnormal temperature status (High Alarm / Low Alarm) ........................... - 17 -

4.2.5. Display when door opens ................................................................................................ - 17 -

4.2.6. Temperature display at startup. ...................................................................................... - 18 -

4.3 Additional controller function --------------------------------------------------- - 18 - 4.3.1. Temperature setting of compressor ON/OFF ................................................................ - 18 -

4.3.2. BIAS function .................................................................................................................... - 20 -

5.0 Maintenance ..................................................... - 21 -

6.0 Malfunction and troubleshooting ................... - 22 -

6.1 Power -------------------------------------------------------------------------------- - 22 -

6.2 Temperature (refrigeration) ----------------------------------------------------- - 23 -

7.0 Technical Specifications ................................. - 24 -

8.0 Warranty ........................................................... - 25 -

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1.0 Safety

1.1 How to use the Manual.

This operation manual describes important instructions on maintaining product function and safe use. Please be sure to read the Safety Precautions carefully before using this equipment. Please keep this manual close to the equipment to use it after reading through it once. Please place it where the new user can easily find it in situations where the equipment is handed over or loaned.

1.2 Symbols used in this manual.

1. The alert marks are there for operating the equipment safely and to protect the user and equipment from damage.

2. Signal word panels are methods for calling attention to safety and property damages, and designate a degree or level of hazard seriousness.

3. Pay attention to the contents of alert marks.

Signal words Purpose

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, may result in minor or moderate injury.

Indicates a property damage message.

1.3 Exemption for responsibility. 1. The claim which is out of the quality guaranteed by the manufacturer is out of

manufacturer’s responsibility. 2. The damage which is from unexpected fault or damage of user by Acts of God is out of

Manufacturer’s responsibility.

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1.4 Warning statement.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Please check and connect equipment properly – this equipment must be connected to a power source that meets the electrical requirements and guidelines as specified on the equipment nameplate.

Use power supplies that are grounded – ungrounded power may cause serious damage to the user and equipment. For safety, do not connect any ground conductor to a gas or water pipe. Do not install the equipment in places where there is or could cause a gas leak out. Do not use in places that has industrial oil smoke and the metallic dust, which may cause a fire or electric shock. Do not use the equipment in areas where flammable or explosive gasses are present. The equipment is not explosion proof. Keep equipment out of direct sunlight. The sunlight may affect the product life and function.

Do not use the equipment in places where flooding may occur or where moisture level is high.

Do not assemble, repair, or modify equipment on your own. The product may not work according to specifications, electric shock may affect the efficiency of the product, and may void warranty.

1.5 Caution statement

Indicates a hazardous situation which, if not avoided, may result in minor or moderate injury.

Do not put heavy things on the power line. Do not put the machine on the line. It may take off the wire coating and causes the electric shock or fire. Do not touch power cord and/or other electric components with wet hands.

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Outlets should be located near the unit and easily accessible. Do not install unit near other machines generating strong high frequency noise. Do not put explosive and/or flammable chemicals inside of the unit.

When cleaning power off the unit and do not pour water into the equipment. Do not use polishing powder, thinner, kerosene, acid etc. Do not let the product take any strong shock or vibration, it may cause abnormal operation or trouble. If burning smell or smoke happens, power off unit, unplug and request service.

1.6 Safety Labels Warning labels are affixed on the product and located on front of the door. Be fully aware of the warning marks and messages during operation.

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2.0 Functional Description

2.1 Introduction

Multi-purpose laboratory refrigerators are designed to meet most users’ convenience and safety – ideal for general purpose refrigerator, drug store refrigerator, low temperature incubator and a range of diverse applications. The refrigeration system enables the unit to reach high efficient refrigeration, forced-direct air circulation to maintain the superior temperature uniformity and quick temperature recovery after the door is opened. The high-density foamed-in-place urethane insulation helps maintain the set temperature. Dedicated controller with visual recognition and operating conditions. Applications for operation temperature

Operating Temperature Purpose

+1°C to +8°C to -20°C to -30°C

General purpose refrigerators O

Chromatography Refrigerators O

pharmacy storage refrigerator O

LOW TEMP. incubators O O

General-purpose freezer O O

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2.2 Construction

(1) Temperature recorder (2) Door lock (3) Door limit switch – when door is open during operation an alarm will sound and the

unit will automatically shut off blower. (4) Shelf level adjustor (5) Shelf (6) Caster (7) Chamber (8) Door (9) Door handle (10) Controller (11) Lamp switch & Fuse & Main switch Recorder (12) Power cord (13) Condensing air ventilation Hole

8

9

10

12

13

11

2

5

7

4

6

3

1

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3.0 Unit components

3.1 Unpacking and Inspecting. (1) Check to see that the unit is not damaged before unpacking. (2) Unpack the unit carefully. (3) Inspect to see that the unit is not damaged during transportations. (4) Check the unit components supplied after unpacking. (5) If noticeable damage or an omission is found, immediately notify Cole-Parmer.

COMPONENT QUANTITY RECEIVED

Unit 1

Shelf

52412-00,-01,-02: 2ea

52412-03 through -11: 3ea

52412-12,-13,-14: 6ea

Shelf bracket

52412-00,-01,-02: 4ea

52412-03 through -11: 6ea

52412-12,-13: 12ea

User instruction

1

Power cord

1

Fuse 2

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3.2 Preparing the Location

1. Install the unit on a flat level surface to

avoid tipping or shock.

2. The unit requires a minimum space more

than 1.5m from a light and more than 20cm

from the wall.

3. The floor should be level, and of solid

construction to prevent any vibration or a

noise.

4. Temperature at the location to be installed

should be below 86F, 80%RH, and the place

should be located away from any heat

source.

5. Be careful when moving the unit due to its

heavy weight.

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3.2.1 Environmental setting The unit can be operated properly under the following environmental conditions.

No direct sunlight

Ambient temperature: 64OC to 86OC

Relative humidity not to exceed 85%

Altitude not to exceed 2000m (6,562 feet)

Keep refrigerator away from high frequency noise produced b y e q u i p m e n t a n d / o r m a c h i n e r y .

Connect to grounded terminals only.

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3.3 Locking/Unlocking Casters & Leveling the unit

The caster assembly allows for easy movement, locking and leveling of the unit. Use the following instructions to ensure the unit is level.

Tool required

Step 1: Place the unit in its location. Step 2: Lower the foot of each caster by turning the red height adjustment counterclockwise until it hits the floor. Turn the height adjustment a quarter turn or more to ensure the unit’s weight is taken off the caster. This will lock the unit in place.

Step 3: Place a level on the top of the door

and check for level side-to-side and front-to-back. Step 4: Turn the height adjustment to raise

or lower the unit until one is level.

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3.4 Power connection

Main power should be connected to the unit according to the following procedure. STEP 1: Check the socket located at the upper part of the back side.

STEP 2: Power cord should be connected to the socket at the back side.

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STEP 3: Press on the main switch upward after power cord is connected to the socket. .

Ensure the unit is connected to a power supply that is an appropriate voltage, phase capacity. Failure to connect to a proper connection of power will cause the risk of fire, electric shock and personal injury

Never use a forked socket, or a double-tapped socket. Failure to obey a safety warning will cause a drop in a line voltage, resulting in a loss of power and causing risk of fire. Only Use the power cord supplied with the unit.

3.5 Pre start-up checks Make sure all electrical connections are tight. Make sure caster feet are lowered and have locked the unit in place. Make sure the unit is level side to side and front to back. Make sure there are no flammable or explosive liquids inside of chamber

<Main switch>

ON

OFF

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4.0 Operation

4.1 Controller – Name and function

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1. VFD display

Check out status of unit through

VFD display.

2. MENU key

To change set value during operating or stand by status.

Press button to change screens

3. LOCK key

Press LOCK to lock controller buttons.

- To perform LOCK function, press and hold LOCK key

for 3 seconds.

- Lamp is on during LOCK function.

4. START/STOP key

Press START/STOP key to start or stop the unit.

- It works only during stand-by mode.

5. JOG DIAL key

Use dial to change or set value.

- To change value: Dial the Jog.

- To store value: Press the Jog.

6. Indication of operating and abnormal status.

<Indication of operating status>

Run: bar cycles. (It indicates that unit works.) Stop

St-by: It activates when actual temperature reaches set temperature. (+/- 1.0℃) Refrig.: Compressor works. Refrig. blinks: Defrost function works. Fan: Internal circulating fan works. Door: Door is open. Pwr.: Power is on. Warning: Abnormal status <Indication of abnormal status and ALARM>

(Indication blinks and Alarming) Hi. Temp. Warning: High temperature is sensed. Lo. Temp. Warning: Low temperature is sensed. Door Warning: Blinking (immediately), Alarming (2 minutes lapse from door

open) 7. Indicates operation of unit.

- Bar increases during operating.

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8. Displays current temperature. 9. Displays set temperature.

4.2 How to operate Controller 4.2.1. Temperature setting

(1) Initial status (when power is on.)

(2) Stand-by status

Temp. / Set Flashing

(3) Press key. (4) Numbers on Set display (set temperature) blinks.

(5) Dial and set temperature.

(6) Press to store set value. Note) 1) If any button is not pressed within 30 seconds during temperature setting, the display will return to stand-by status.

2) If the key is pressed one more time when Set blinks, the next function will be

displayed.

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4.2.2. Temperature Alarm setting (High Alarm/ Low Alarm)

Hi. Temp. / Warning / Set blinking

Temp./Lo. / Warning / Set blinking

(1) Press key 2 times at Standby status.

Hi. Temp., Warning setting - Hi. Temp. , Warning, and Set blink.

- Dial and press to store set value. (Relative temperature, range of input value : -50~50, basic value : 10) (2) Lo. Temp., Warning setting

- Press key after setting Hi.Temp., Warning. - Temp.Lo. , Warning, and number on Set blink.

- Dial and press to store set value. (Relative temperature, range of input value : -50~50, basic value : 10)

(3) Press key to return Stand-by status.

(Cycle: Stand-by status -> Temperature setting -> Hi.Temp./Warning -> Temp./Lo. ->

Stand-by status)

(Note) If any button is not pressed within 30 seconds during Hi/low alarm setting, the

display will return to stand-by status.

4.2.3. Operation

(1) Stand-by status

(2) Press key to start unit.

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4.2.4. Display of abnormal temperature status (High Alarm / Low Alarm)

Hi. / Temp. / Warning blinking

(1) High Alarm If temperature exceeds the set value, the High Alarm will be triggered.

- Hi. /Temp. and Warning blinks and alarms.

Temp. / Lo. / Warning Flashing

(2) Low Alarm If temperature exceeds below set value, the Low Alarm will be triggered. - Temp. / Lo. and Warning blinks and alarms.

Note

- Press to silence alarm. Warning will still be displayed even after the dial has been pressed. - Alarm is temporarily silenced for 2 minutes once the dial has been pressed. - Two options are available to clear the Warning in the display.

1. Turn the equipment OFF and then back ON.

2. Find what is causing the Warning to display and correct the issue.

4.2.5. Display when door opens

Door / Warning Flashing

(1) When door open is detected. - Door/ Warning blinks immediately and alarm starts after 2 minutes of door being opened. (2) Internal circulation fan stops when door opens. (3) Compressor stops after 5 minutes of door being opened. (4) Unit returns to normal status once door closes.

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4.2.6. Temperature display at startup.

(1) Start the unit.

(2) Temperature decreases from room temperature.

(3) Indication of Hi. on display blinks until temperature reaches set temperature.

(4) St-by blinks when temperature remains at set temperature.

4.3 Additional controller function 4.3.1. Temperature setting of compressor ON/OFF

(1) Initial display.

(2) Stand by display.

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(3) Press and hold key for over 5 seconds to toggle to a different input setting (display will change along with an audible beep sound).

Hi. / Temp. / Set Flashing

(4) Numbers of Hi. / Temp. and Set temperature blinks.

(5) Dial and set temperature when number of Set blinks.

(6) Press to enter set point.

The above display shows set temperature to run compressor.

(Relative temperature, input value: 0.0~20.0, factory setting: 1)

Start temperature of compressor: Current temperature > set temperature + input value

(7) Press key to toggle through additional input settings.

※ Do not change the value without any discussion with supplier or manufacturer.

Temp. / Lo. / Set Flashing

(8) Temp. /Lo. and Set temperature blinks.

(9) Dial and set temperature when number of Set blinks.

(10) Press to enter set point.

The above display shows set temperature to stop compressor.

(Relative temperature, Input value: -20.0~0.0, factory default: -1)

Stop temperature of compressor: Current temperature < set temperature + input value.

(11) Press key and additional function will display.

※ Do not change the value without any discussion with supplier or manufacturer.

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4.3.2. BIAS function

Hi. / Temp. / Set Flashing

(1) It is temperature compensation function to correct temperature.

(2) Number of Set temperature blinks.

(3) Dial and select compensation temperature when number of Set blinks.

(4) Press to enter set point.

(5) Press the for more than 5 seconds to exit from additional input setting menu or turn the equipment OFF and then back ON.

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5.0 Maintenance

Disconnect refrigerator from power supply before cleaning or performing any maintenance or repair work.

(1) When you clean the unit, pull out the power cord from the outlet and wipe it with a soft

and dry cloth.

(2) Do not use acid solvents, benzene, sharp materials, soapy water, washing solvents, and hot water. They can cause damage or discoloration to the unit. Parts with rubber and plastic can be changed, degenerated, or discolored. Wipe the unit with a dry cloth after using a natural detergent. Then, dry it completely.

Use proper way to clean and maintain equipment. Do not pour water into the equipment and do not use polishing powder, thinner, kerosene, acid etc.

(3) Use appropriate safety gloves and mask for harmful chemicals and gasses in the event

of cleaning accidental chemical spills from the unit.

(4) Do not pour water directly on the equipment (especially control panel). Short-circuit can occur.

(5) If the user tries to clean this unit with other method not mentioned in this manual,

please contact us in order not to damage the unit.

(6) Only authorized technician can treat the electronic parts inside of the equipment.

(7) Use only the original parts for replacing.

Do not disassemble the equipment. Disassembling the equipment can cause electric shock due to high voltage inside the equipment.

(9) If unit will not be used for a long period of time, disconnect from power supply.

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6.0 Malfunction and troubleshooting

6.1 Power

Symptoms Causes Solutions

The equipment is not on

Wrong electric standard

Check the ID plate on the side whether it is fit to the socket power, supply proper voltage and frequency for the power.

Circuit breaker is off or power failure

Check if the power is off. If the circuit breaker is off, fix it and operate the equipment again.

The plug is not inserted completedly

Put plug into the socket again.

Socket/plug/power lines are damaged

Check the socket/plug/power lines and replace with new one if they are damaged.

Fuses are disconnected. When the fuse is short circuitted, replace new one.

Fuse short circuits frequently

Too many plugs are connected

1. Check the voltage capacity supplied to the circuit breaker.

2. Check how many units are plugged into the socket. Use separate socket not exceeded voltage capacity.

Display does not show when power is on

Power cut Check if power is out

The plug is not inserted completedly into outlet

Put plug into the socket again

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VFD display is showing with broken screen

VFD segment error

Request service

Symptoms Causes Solutions

Dial button does not work properly

Button malfunction Request service

Dial buttom does not work at all

Controller malfunction

Request service

Button damage Request service

6.2 Temperature (refrigeration)

Symptoms Causes Solutions

Temperature does not hold well

Too many samples

Make sure there is enough room for air to flow freely around the samples. If not unit may be overloaded.

Insufficient space around the unit

Secure sufficient space around the unit. (the distance should be 20cm from wall)

Filter has too much dustm or condenser is dirty.

Clean filter and condensor

Refrigeration malfunction Request service

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7.0 Technical Specifications

Model

52412-00

52412-01

52412-02

52412-03

52412-04

52412-05

52412-06

52412-07

52412-08

52412-09

52412-10

52412-11

52412-12

52412-13

52412-14

Temp Range (C/F) 2~10℃ /35.6~50°F

Capacity (L/cu ft)) 156/5.5 303/10.7 603/21.3 805/28.4 1327/46.9

Exterior (mm/inch)

(WxDXH)

683x791x870

26.9x31.1x34.4

670x770x1515

26.4x30.3x59.6

770x865x1965

30.3x34.1x77.4

870x965x1965

34.3x37.9x77.4

1550x865x1965

61x34.1x77.4

Interior (mm/inch)

(WxDxH)

550x580x490

21.7x22.8x19.3

550x550x1000

21.7x21.7x39.4

650x640x1450

25.6x25.2x57.1

750x740x1450

29.5x29.1x57.1

1430x640x1450

56.3x25.2x57.1

Exterior cabinet Steel, 1 mm, powder coating

Interior cabinet Stainless steel #304

Insulation 60mm, Polyurethane foam

Outer door 1 1 1 1 2

Door lock 1 1 1 1 2

Shelves Plastic coated wire sliding shelves

Shelves (max) 2 (4) 3 (7) 3 (11) 3 (11) 6 (22)

Casters - 4 4 4 6

Refrigerator

(Hp)

120V/60Hz 1/6 1/6 1/6 1/6 1/6 x 2ea

230V/60Hz 1/6 1/6 1/4 1/4 1/4 x 2ea

230V/50Hz 1/6 1/6 1/4 1/4 1/4 x 2ea

Air circulation Forced air circulation

Defrost control Automatic control

Temperature alarm High Temp, Low Temp, Audible and visual alarm

Door alarm Audible and visual alarm

Lightning -

18W

Fluorescent

lamp ,1ea

32W Fluorescent lamp ,1ea

Net weight (kg/lbs) 100/220.4 130/286.6 210/463 260/573.2 350/771.6

Power source 120V 60Hz, 230V 60Hz, 230V 50Hz

Power

consumption

(A)

120V/60Hz 5 5 5 5 10

230V/60Hz 2.5 2.5 4 4 7.5

230V/50Hz 2.5 2.5 4 4 7.5

1) All specifications are under ambient temperature 20℃ (68℉), no load

2) Technical data (according to DIN 12880, IEC 60068)

※ Permissible ambient Condition: Temperature 18 to 30℃ (64.4 to 86℉), Maximum relative humidity

85%

→ Recommended ambient temperature: +20℃ (68℉)

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8.0 Warranty Cole-Parmer Instrument Company warrants this product to be free from significant deviations in material and workmanship for a period of 2 years from date of purchase. If repair or adjustment is necessary and has not been the result of abuse or misuse within the one-year period, please return-freight pre-paid and correction will be made without charge. Cole-Parmer alone will determine if the product problem is due to deviations or customer misuse. Out of warranty products will be repaired on a charge basis.