Phcbi MBR-705GR-PA/PK/PR Operating instructions

Please read the operating instructions carefully before using this product, and keep the operating

instructions for future use.

See page 39 for all model numbers.

Operating Instructions

Blood Bank Refrigerator

2

CONTENTS

INTRODUCTION P. 3

PRECAUTIONS FOR SAFE OPERATION P. 4

ENVIRONMENTAL CONDITIONS P. 9

REFRIGERATOR COMPONENTS

Refrigerator unit P. 10

Control panel P. 12

Inside of front cover P. 13

Back of the unit P. 13

INSTALLATION SITE P. 14

INSTALLATION P. 15

PREPARATION OF MONITOR BOTTLE P. 16

START-UP OF UNIT P. 17

PLACING OF STORAGE ITEMS P. 18

DISPLAY OF CHAMBER TEMPERATURE P. 19

DEFROSTING OF EVAPORATOR P. 19

REMOTE ALARM TERMINAL P. 20

TEMPERATURE RECORDER

Recorder unit P. 21

Loading the pen cartridge P. 22

Setting the start time P. 23

Replacing the recording chart P. 23

CALIBRATION OF SENSOR P. 24

ALARM FUNCTIONS P. 25

SELF DIAGNOSTIC FUNCTIONS P. 26

ROUTINE MAINTENANCE

Cleaning of exterior, interior, and accessories P. 27

Checking of alarm operation P. 27

Cleaning of evaporating tray P. 28

Replacement of fluorescent lamp P. 29

Replacement of glow starter P. 30

REPLACEMENT OF BATTERY P. 31

TROUBLESHOOTING P. 32

DISPOSAL OF UNIT

Recycle of battery P. 33

Decontamination of unit P. 33

SPECIFICATIONS P. 38

PERFORMANCE P. 39

SAFETY CHECK SHEET P. 40

3

INTRODUCTION

Handling of Operating Instructions

 PHC Corporation never guarantees any safety if the appliance is used for any objects other than

intended use or used by any procedures other than those mentioned in the operating instructions.

 Keep the operating instructions in an adequate place to refer to it as necessary.

 Contact our sales representative or agent if any page of the operating instructions is lost or page order

is incorrect.

 Contact our sales representative or agent if any point in the operating instructions is unclear or if there

are any inaccuracies.

 The operating instructions is only for the blood bank refrigerator (MBR-705GR) made by PHC

Corporation.

 The contents are subject to change without notice.

 No part of the operating instructions may be reproduced in any form without the expressed written

permission of PHC Corporation.

IMPORTANT NOTICE

PHC Corporation guarantees this product under certain warranty conditions. However, please note that

PHC Corporation shall not be responsible for any loss or damage to the contents of the product.

Proposal for safe storage of refrigerator contents

This blood bank refrigerator can store the blood bags in the low temperature environment. A remote

alarm system can be provided with the refrigerator to protect the blood against accidental temperature

rise. Contact our sales representative or agent for the details or installation.

This equipment is designed for storage of blood and blood products.

4

PRECAUTIONS FOR SAFE OPERATION

It is imperative that the user complies with the operating instructions

as it contains important safety advice.

Items and procedures are described so that you can use this unit correctly and safely.

If the precautions advised are followed, this will prevent possible injury to the user and

any other person.

Precautions are illustrated in the following way:

WARNING

Failure to observe WARNING signs could result in a hazard to personnel

possibly resulting in serious injury or death.

CAUTION

Failure to observe CAUTION signs could result in injury to personnel and

damage to the unit and associated property.

Symbol shows;

This symbol means caution.

This symbol means an action is prohibited.

This symbol means an instruction must be followed.

Be sure to keep the operating instructions in a place accessible to users of this unit.

< Label on the unit >

This mark is labeled on the cover in which the electrical components of high voltage

are enclosed to prevent the electric shock.

The cover should be removed by a qualified engineer or service personnel only.

Contains mercury / Contenu avec mercure

For more information on safe handling

procedures, the measures to be taken in

case of accidental breakage and safe

disposal options visit:

ec.gc.ca/mercure-mercury/.

Dispose of or recycle in accordance with

applicable laws.

Pour plus de renseignements sur les

procédures de manutention sécuritaire, les

mesures à prendre en cas de bris accidentel et

les options d’élimination sécuritaire visitez:

ec.gc.ca/mercure-mercury/.

Mettez au rebut ou recyclez conformément

aux lois applicables.

5

PRECAUTIONS FOR SAFE OPERATION

Never damage (break, process, get access to a heat equipment, bend forcedly, twist, pluck,

weight, bind) the power supply cord or power supply plug. A broken power supply cord or

power supply plug may cause electric shock, short circuit or fire.

Remove the dust on the power supply plug periodically. The dust on the power supply plug may

cause insulation failure by the moisture and results in the fire. Disconnect the power supply plug and

wipe it with a dry cloth.

Insert the power supply plug completely. A faulty insertion may cause electric shock or fire by

heat generation. Never use a damaged power supply plug or loose outlet.

Never connect or disconnect the power supply plug with a wet hand. This may cause electric

shock.

Always use a outlet with rated voltage and amperage exclusively. A combined use with other

equipment may cause fire by heat generation.

Do not use the unit outdoors. Exposure to rain may cause leakage and/or electric shock.

Only qualified engineers or service personnel should install the unit. The installation by

unqualified personnel may cause water leakage, electric shock or fire.

Install the unit at the location capable of bearing the total combined weight (product + optional

accessories + storage items). After installing the unit, be absolutely sure to take steps to

prevent the unit from toppling over. If the unit is installed in a location which is not strong enough

or if the proper steps to prevent toppling are not taken, the unit may topple over, possibly causing

injury.

Do not install the unit in a location where flammable or volatile substances are present.

Installing the unit in a location where flammable or volatile substances are present may cause

explosions and/or a fire.

Do not install the unit where there is a high level of moisture or where it may be splashed with

water. Installing the unit where there is a high level of moisture or where it may be splashed with

water may cause the insulation to deteriorate and give rise to leakage and/or electric shock.

Be absolutely sure to connect the unit to ground in order to prevent electric shock. Failure to

connect the product to ground may give rise to electric shock. If the unit cannot be connected to

ground, ask a qualified contractor to do the grounding work.

Do not connect the grounding wire to a gas pipe, water pipe or lightning rod in carrying

out the grounding work. Connecting the unit to ground improperly may give rise to electric shock.

WARNING

6

PRECAUTIONS FOR SAFE OPERATION

Never store volatile or flammable substances in this unit if the container cannot be sealed.

Such substances may cause explosion or fire if they leak.

Never insert metal objects such as a pin or a wire into any vent, gap or any outlet on the unit.

This may cause electric shock or injury by accidental contact with moving parts.

When handling harmful samples (which consist of toxic, pathogenic or radioactive substances,

for example), install the unit inside a designated isolation facility. If the unit is installed in a

location which is not an isolation facility, there may be detrimental effects on both people and the

natural environment.

Before proceeding with maintenance or checking the unit, set the power switch to the OFF

position, and disconnect the power supply plug. Performing the work while power is still flowing

to the product or while the power supply plug is still connected may give rise to electric shock and/or

injury.

Put on the gloves and mask at the time of maintenance. The contact with or inhale of medication

or aerosols from around the unit may be harmful to your health.

Never splash water directly onto the unit as this may cause electric shock or short circuit.

Never put containers with liquid on the unit as this may cause electric shock or short circuit when

the liquid is spilled.

Never disassemble, repair, or modify the unit yourself. The high voltage area is located inside of

the unit. Any such work carried out by an unauthorized person may result in electric shock. Contact

our sales representative or agent at the time of maintenance or repair of inside component.

Disconnect the power supply plug if there is something wrong with the unit. Continued

abnormal operation may cause electric shock or fire.

Grip the power supply plug when disconnecting the power supply cord from the outlet.

Plucking the power supply cord may cause electric shock or short circuit.

Disconnect the power supply cord when the unit is not used for long periods. Keeping the

connection may cause electric shock, leakage, or fire due to the deterioration of insulation.

If the unit is to be stored unused in an unsupervised area for an extended period, ensure that

children do not have access and that doors cannot be closed completely.

Ask a qualified contractor to disassemble and dispose of the unit. Leaving the unit in a location

which can be accessed by third parties may result in unexpected accidents (small children may

become locked inside, for example).

WARNING

7

PRECAUTIONS FOR SAFE OPERATION

Do not leave the plastic bags used for packing in a location where they can be reached by

small children and minors. Leaving the plastic bags used for packing in a location where they can

be accessed by small children and minors may result in unexpected accidents (if, for example, a bag

is placed over the head of a child, its mouth and nose may be blocked, possibly resulting in

suffocation).

When moving the unit, take steps to prevent it from toppling over. Moving the unit using too

much force may cause it to topple over, possibly resulting in injury. An individual whose job it is to

supervise the movement must be put in place and the unit moved while ensuring safety.

Never replace the battery for power failure alarm. Only qualified engineers or service personnel

should replace the battery.

Do not install the unit in a location where corrosive gas such as acid is present. Installing the

unit in a location where corrosive substances are present may cause leakage and/or electric shock by

the deterioration of insulation resulting from the corrosion of electric components.

Do not place this unit in a location where it is difficult to disconnect the power supply plug.

Failure to disconnect the power supply plug may cause fire in the event of a problem or malfunction.

WARNING

8

PRECAUTIONS FOR SAFE OPERATION

This unit must be plugged into a dedicated circuit protected by branch circuit breaker.

Use a dedicated power source as indicated on the rating label attached to the unit. A

multiple-tap may cause fire resulting from abnormal heating.

Do not climb onto the unit or put any articles on the unit. Injury may be caused by toppling or

damage of the unit or if the articles fall.

Never install the unit in a location where the corrosive material such as sulfur compound is

likely to be generated (near a drainage facilities, etc). Corrosion of the copper pipe may result in

deterioration of cooling unit and consequently the failure.

Do not touch the evaporating pipe directly. The evaporating pipe is hot. Touching the

evaporating pipe during operation of the unit or immediately after stopping of the operation may cause

injury.

Always store the items in the drawers. The storage at outside of the drawers may degrade the

quality of storage items.

Before resuming operation after a stoppage, be absolutely sure to check the settings. The

settings may have changed as a result of the stoppage. When operation is resumed with the settings

changed, the storage item inside the unit may be adversely affected.

Never store corrosive substances such as acid or alkali in this unit if the container cannot be

sealed. These may be harmful to your health and may cause corrosion of inner components or

electric components.

Submit a safety check sheet with the required items filled out so that the safety of the service

engineer is maintained. The safety check sheet is provided as the “Safety Check Sheet (page to be

copied) in this operating instructions.

CAUTION

9

ENVIRONMENTAL CONDITIONS

This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1):

 Indoor use;

 Altitude up to 2000 m;

 Temperature 5 oC to 40 oC;

 Maximum relative humidity 80 % for temperature up to 31 oC decreasing linearly to 50 % relative

humidity at 40 oC;

 Mains supply voltage fluctuations up to ±10 % of the nominal voltage;

 Transient overvoltages up to the levels of OVERVOLTAGE CATEGORY II;

 Temporary OVERVOLTAGES occurring on the mains supply;

 Applicable pollution degree of the intended environment (POLLUTION DEGREE 2 in most cases);

10

REFRIGERATOR COMPONENTS

Refrigerator unit

1

Fluorescent lamp

[page 29]

Temperature recorder

Light switch

3

5

7

Door gaske

t

2

4

6

9

(upper & lower)

8

(both sides & top)

10

11

Key hole

11

REFRIGERATOR COMPONENTS

1. Front cover: This cover can be opened by pulling the bottom. Open this cover when using the

remote alarm terminal or replacing the glow starter. [page 13]

2. Control panel: With the key on the control panel, temperature display can be changed and the alarm

test is available. Also, the running status can be checked on the temperature display and indicators.

[page 12]

3. Air exhaust vent (side of duct): Do not block this vent. Blocking this vent may cause unstable

chamber temperature. Arrange the storage items not to subject to the cold air from this vent.

4. Inner door: This prevents the cold air from escaping when the outer door is opened. Always close

the inner door surely before closing the outer door.

5. Leveling feet (front, 2 locations): These are screw bolts used to install and fix the unit. Adjust the

height of the leveling feet by turning the screw bolts until 2 front casters are away from the floor. [page 15]

6. Condensation tray: The condensation on the outer door is accumulated in this tray. Wipe off the

water on the condensation tray with a cloth occasionally.

7. Drawer: The maximum load is 40 kg per drawer.

 Items to be stored in the chamber must be placed on the drawers. Do not put storage items directly

on the bottom of the chamber.

8. Access port (both sides & top): These ports allow a sensor or cable of measuring equipment to enter

the chamber from outside.

 Replace the insulation and the rubber caps when the access port is not used. Improper replacement

may cause rise of chamber temperature or condensation around the access port.

9. Monitor bottle (upper & lower): A sensor to display the chamber temperature is attached to the

monitor bottle. Fill the bottle with 200 mL of 10% glycerol fluid or water before commencing the

operation. [page 16]

10. Air intake vent (upper front): Do not block this vent. Blocking this vent may cause unstable

chamber temperature. Do not insert fingers or similar articles into the vent.

11. Door alarm switch: This switch detects the outer door status (open/close). The door alarm indicator

is ON when the outer door is open and the alarm buzzer sounds with 2 minutes delay. [page 25]

 This switch cannot silence the alarm buzzer at the time of power failure alarm.

12

REFRIGERATOR COMPONENTS

Control panel

1. Door alarm indicator (DOOR): The red LED lamp is lit when the outer door is opened.

 2 minutes after the door alarm indicator is ON, the alarm buzzer is activated to notice the door opening.

[page 25]

2. Alarm indicator (ALARM): The red LED lamp blinks during an alarm status. [page 25]

3. Battery indicator (BATTERY): The orange LED lamp is lit to notice the timing of battery replacement.

The orange LED lamp blinks to notice the timing of fan motor replacement. [page 26]

4. Temperature display indicator (LOWER): This lamp is lit when the lower monitor bottle temperature

is displayed or when the average temperature of lower and upper monitor bottle temperature is displayed

on the temperature display.

5. Temperature display indicator (UPPER): This lamp is lit when the upper monitor bottle temperature

is displayed or when the average temperature of lower and upper monitor bottle temperature is displayed

on the temperature display.

6. Temperature display: Normally this shows the present chamber temperature and during an alarm

status, this shows a blinking chamber temperature [page 25]. And an error code and a chamber

temperature is displayed alternately when the self diagnostic function detects any abnormality. [page 26]

7. Up arrow key ( ): This key is used at calibration mode of sensor for temperature display. Only a

service personnel can use this key.

8. Scroll key ( ): This key is for service and used by a service personnel only.

9. Calibration key (CAL): This key is used for the calibration of sensor for temperature display. Only a

service personnel can use this key.

10. Temperature display changeover key (UPPER/LOWER): By pressing this key, the displayed

temperature is changed in sequence; upper temperature, lower temperature, and average temperature of

upper and lower temperature. [page 19]

11. Alarm test key (ALARM TEST): This key is used to check the operation of alarm buzzer, alarm

indicator and remote alarm terminal. [page 25 and page27]

12. Alarm buzzer stop key (BUZZER): Pressing this key silences the alarm buzzer when the alarm

buzzer sounds.

 The alarm buzzer at the time of power failure cannot be silenced by the alarm buzzer stop key.

12 9 8 7

6 21 4 5

1011

3

13

REFRIGERATOR COMPONENTS

Inside of front cover

The glow starter, remote alarm terminal and the battery

switch are accessible by opening the front cover.

 To open the front cover, put a hand on the lower both

sides of the front cover and lift it up.

 Support the front cover with the stopper (refer to the

right figure) when open the front cover.

1. Glow starter (inside the drip-proof cover)

This is a glow starter for a fluorescent lamp. It

is recommended to replace the glow starter at

the time of the replacement of fluorescent lamp.

For the replacement, see page 30.

2. Remote alarm terminal

A remote alarm device (marketed product) can

be connected to this terminal. The alarm is

noticed to an operator in the remote area by the

remote alarm. Refer to page 20 for the details.

3. Battery switch:

This is a ON/OFF switch for the battery for

power failure alarm. Always turn on this switch

whenever the refrigerator is running to ensure

the alarm in the event of power failure. Turn off

this switch when the refrigerator is not operated

for long period to protect the battery.

Back of the unit

1. Power switch

This is a power switch of the unit. ”l”: ON, ”O”: OFF

2. Evaporating pipe

3. Evaporating tray

The water from the evaporator is accumulated and

vaporized by the evaporating pipe in this tray. Refer to

page 28 for the cleaning.

4. Spacer

The space between the unit and the wall is maintained by

this spacer. Also, the spacer can be used to fix the unit to

the wall with a rope or chain. [page 15]

3 OFF

ON

1

2

Front cover

Stopper

4

1

3

2

14

INSTALLATION SITE

This unit must be installed in a location which meets all the conditions described below.

 If the unit is installed in a location which does not meet the conditions, its specified performance may

not be achieved or malfunctioning and accidents may occur.

 A location not exposed to direct sunlight

Avoid any location which is exposed to direct sunlight. Installing the unit in a location exposed to direct

sunlight may cause its cooling performance to be reduced.

 A well-ventilated (airy) location

In order to ensure ventilation, leave clearances of at least 10 cm around the unit (at the left, right and

back). Blocking the ventilation may reduce the unit’s cooling performance or cause malfunctioning.

 A location away from sources of heat

Avoid any location which is close to a large source of heat (such as a heater or boiler). Installing the unit

near a large source of heat may reduce the unit’s cooling performance.

 A location with minimal changes in temperature

Avoid any location where the ambient temperature is subject to sudden changes. If the unit is installed

in a location where the ambient temperature is subject to sudden changes, it will not be possible to

achieve a stable cooling performance.

 A level location where the floor is capable of bearing the total combined weight (product +

optional accessories + storage items)

Install the unit in a location which is not uneven and which is capable of bearing the total combined weight

(product + optional accessories + storage items). If the unit is installed where the surface is uneven or

where the unit will be inclined at an angle, the unit will be unstable, and accidents or injuries may result

and/or vibration or noise may be generated.

 A location with minimal humidity

Install the unit in a location where the relative humidity is less than 80%. Installing the unit in a very

humid location may cause ground faults and/or electric shock.

 A location free of ignitable or corrosive gases

Avoid any location exposed to ignitable or corrosive gases. Ignitable or corrosive gases can cause

explosions and/or a fire. Furthermore, corrosion of the electrical parts may cause the insulation to be

reduced and result in ground faults and/or electric shock.

 A location without the possibility of anything fall

Avoid the location where anything can fall down onto the unit. Falling down of anything onto the unit

may cause the breakdown or failure of the unit.

15

INSTALLATION

1. Preparations after unpacking

Remove all the tapes used to secure the doors and interior parts, and leave the doors open for a short

while for ventilation.

If any surfaces of the outer cabinet are dirty, wipe off the dirt using a cloth moistened with a diluted

neutral dish-washing detergent.

 Using an undiluted solution of a neutral dish-washing detergent may cause the unit’s plastic areas to

crack. Follow the directions of the neutral dish-washing detergent for the dilution details.

 After removing the dirt using the diluted neutral dish-washing detergent, be absolutely sure to wipe the

surfaces with a cloth dipped in clean water to remove the traces of the neutral dish-washing detergent.

After this, be absolutely sure to wipe the surfaces with a dry cloth, allow the surfaces of the outer cabinet

to dry out, and then proceed with the installation.

Note:

Remove the cable tie banding the power supply cord. Prolonged banding may cause the corrosion of

the cord coating.

2. Securing and leveling the unit using the leveling feet

Rotate the front leveling feet clockwise until the casters are

raised 5 mm to 10 mm from the surface of the floor. [Fig. 1]

In addition, rotate the leveling feet slightly clockwise or

counterclockwise, and adjust them so that the unit is level

between the left and right.

 When the casters are raised from the surface of the floor,

the unit is secured. If they are left touching the floor, the

unit may inadvertently move out of position when its door is

opened or closed.

3. Fixing the unit by using the spacers

Use the spacers (which are also used to prevent the

product from toppling over) on the rear panel of the unit,

and secure the unit to a wall with a strong rope or chain

available on the market. [Fig. 2]

Note:

Contact our sales representative or agent if the unit should

be fixed for earthquake resistant.

4. Preventing electric shock by connecting the unit to

ground

When installing the unit, be absolutely sure to connect it to

ground. Grounding is necessary to prevent the electric

shock which will arise when the electrical insulation has

deteriorated.

 This unit comes with a 3-pole plug with ground pin.

Grounding work is not required in the case of a 3-pole

power outlet equipped with a ground contact.

 If the power outlet is not a 3-pole power outlet equipped

with a ground contact, ask a qualified contractor to do the

grounding work.

Fig. 1

Leveling foot

Spacer

Fig. 2

16

PREPARATION OF MONITOR BOTTLE

Before start-up of the operation, fill the monitor bottles (upper and lower) with 10% glycerol fluid or water

by the procedure below. For the location of monitor bottle, refer to page 10.

1. Remove the cover on the monitor bottle.

 The cover is fixed by the upper and lower clicks. It can

be removed by pulling the upper side forward as shown in

Fig. 1.

2. Take out the sensor for temperature display from the

monitor bottle.

 The sensor for temperature display is not fixed,

therefore it is removed together with the cover.

 Take out the recorder sensor as well from the upper

monitor bottle.

3. Take out the monitor bottle from the fixing plate by lifting

up.

4. Remove the cap (screw type) on the monitor bottle as

shown in Fig. 2.

5. Pour 10% glycerol fluid or water of 200 mL (marking on

the bottle) into the monitor bottle.

 The displayed chamber temperature cannot be accurate

if the fluid in the monitor bottle is low. Check the fluid

volume regularly.

6. Cap the monitor bottle and replace the monitor bottle to

its original location on the fixing plate.

7. Set the sensor for temperature display to the monitor

bottle and replace the cover.

 Set the recorder sensor as well to the upper monitor

bottle.

Cove

r

Recorder sensor

(upper monitor bottle)

Sensor for

temp. display

Fig. 1

Loosen

Cap

Fig. 2

Monitor bottle

17

START-UP OF UNIT

Follow the procedures for the initial and consequent operations (after temporary stop for cleaning,

maintenance or moving) of the unit.

 At the recovery from power failure, the operation is start-up automatically with temperature setting of

4 oC

1. With the blood bank refrigerator empty, connect the power supply cord to the dedicated outlet with

appropriate rating, and turn on the power switch. For the location of the power switch, see page 13.

► The alarm buzzer operates. Silence the alarm buzzer by pressing the alarm buzzer stop key

(BUZZER). The alarm buzzer recovers after 30 minutes. (This is caused by high temperature alarm

function and not a malfunction.)

2. Fill the monitor bottles with 10% glycerol fluid or water. [page 16]

Close the doors (outer and inner door) securely. The door check indicator is lit when the outer door is

open. The alarm buzzer activates when the outer door is opened for more than 2 minutes. The alarm

buzzer is canceled when the outer door is closed.

3. The chamber temperature is set to 4 oC at the factory. Check that the chamber temperature reaches

4 oC on the temperature display.

 Check that the chamber temperature falls to 4 oC on the temperature display when the start-up after

stop for cleaning, maintenance or moving.

4. Turn on the light switch to check the fluorescent lamp is on. After checking, turn off the light switch if

the light is not necessary.

5. Turn on the battery switch.

Always turn on the battery switch when the blood bank refrigerator is operating to assure the power

failure alarm.

6. Turn on the power switch of the temperature recorder. [page 21]

7. Begin slowly placing items into the chamber to minimize the temperature rise.

Never put the storage items on the bottom of the chamber. Always put the storage items in the drawer.

Never store items other than blood in the chamber together with the blood.

Never stack the blood bags in the drawers.

Under high ambient temperature and humidity, the outer door has a condensation on the glass during

refrigerator operation. Wipe off the condensation with a dry soft cloth. Also, wipe off the water on the

condensation tray regularly.

18

PLACING OF STORAGE ITEMS

Do not disturb the air circulation in the chamber by the storage items. The disturbed air circulation can

cause the freezing of storage items or degrade of temperature distribution in the chamber.

Air intake vent

Do not block the air intake by the storage items near the air intake vent. Care should be taken not to put

any paper or plastic chips near the air intake vent. They may be vacuumed up and block the air intake

vent.

Air exhaust vent

Do not block the air exhaust by the storage items near the air exhaust vent. Care should be taken not to

put storage items nearby the air exhaust vent. The storage items may be frozen.

CAUTION

Never block the air intake or exhaust vent. Also, never disturb the air circulation therefore, place the

storage items with adequate space.

The blood bags should be stored in the drawers. Do not put the blood bags directly on the bottom of the

chamber.

Never stack the blood bags in the drawers.

19

DISPLAY OF CHAMBER TEMPERATURE

The chamber temperature is set to 4 oC at the factory. The temperature on the temperature display

shows the temperature of sensor for temperature display attached to the monitor bottle (upper and lower).

By pressing the temperature display changeover key, the displayed temperature is changed in sequence;

upper temperature, lower temperature, and mean temperature of upper and lower temperature. The

table 1 shows the procedure for changeover.

The upper temperature is the representative of high temperature and the lower temperature is the

representative of low temperature. Accordingly, the displayed temperature is not always 4 oC. This is

not a malfunction.

Table 1. Changeover of temperature display : Lamp ON : Lamp OFF

Operation Key operated Indication after operation Display mode

1

Plug-in the power supply

cord and turn on the

power switch.

----- Mean temperature is

displayed.

UPPER

LOWER

Mean

temperature

2 Press the temperature

display changeover key.

Upper temperature is

displayed.

UPPER

LOWER

Upper

temperature

3 Press the temperature

display changeover key.

Lower temperature is

displayed.

UPPER

LOWER

Lower

temperature

4 Press the temperature

display changeover key.

Mean temperature is

displayed.

UPPER

LOWER

Mean

temperature

5 Repeat from step 2.

DEFROSTING OF EVAPORATOR

The following 2 defrost methods are adopted in this unit and both of them are controlled automatically.

 Cycle defrost

To keep the chamber temperature stable, the compressor is cycled on and off. During “off” period any

frost on the evaporator is melted by energizing a defrost heater. This will not have any discernible effect

on the chamber temperature.

 Forced defrost

When the ambient humidity is high, or a large amount of damp product is being stored in the chamber,

there is a possibility that cycle defrost may not be enough to remove all of the frost on the evaporator. In

this case, a forced defrost is initiated when the defrost sensor detects the frost.

When the unit is operating under the forced defrost, the current chamber temperature and “dF” is

displayed alternately on the temperature display.

Once the forced defrost is completed, the normal operation resumes. Note the temperature of blood bag

(400 mL) in the chamber rises by approximately 1 oC during the forced defrost.

UPPE

R

LOWE

R

UPPE

R

LOWE

R

UP

P

E

R

LOWE

R

20

REMOTE ALARM TERMINAL

The alarm status is noticed to a remote location when a remote alarm equipment (commercial item) is

connected to the remote alarm terminal. It is recommended to install a remote alarm equipment

(commercial item) when the blood bank refrigerator is installed in a desolate location so that an alarm

status is noticed to an operator.

 Contact our sales representative or agent for the installation of a remote alarm equipment (commercial

item).

 Location of remote alarm terminal: inside the front cover [page 13]

 Allowable contact capacity: DC 30 V, 2 A

Contact output:

between COM and N.O. between COM and N.C.

At normal status open close

At abnormal status close open

 The alarm status of remote alarm terminal is canceled by pressing the alarm buzzer stop key

(BUZZER) since the remote alarm terminal is operated in conjunction with alarm buzzer. However, the

alarm status of remote alarm terminal is not canceled by pressing the alarm buzzer stop key (BUZZER)

when the unit is under power failure alarm.

 The remote alarm terminal is in alarm status when the power supply cord is unplugged because it is

regarded as a power failure. In this case, the alarm status of remote alarm terminal is not canceled by

pressing the alarm buzzer stop key (BUZZER).

Connection of remote alarm equipment

1. Open the front cover. [Fig. 1]

 For the details to open the front cover, refer to page 13.

2. Connect the lead wire of a remote alarm equipment

(commercial item) to the remote alarm terminal. [Fig. 2]

3. Pass the lead wire of a remote alarm equipment through

the port on the top cover. [Fig. 3]

4. Close the front cover.

Fig. 2

Front cover

Fig. 1

N.C. COM N.O.

Port

Fig. 3

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Phcbi MBR-705GR-PA/PK/PR Operating instructions

Phcbi MBR-705GR-PA/PK/PR Operating instructions

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