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USER MANUAL

WEIGHING BOOTH :ZJSJ

ZHEJIANG FUXIA MEDICAL TECHNOLOGY CO., LTD.

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1.Applicaton

The weighing booth is a specialized partial purification equipment used in the

production of the 2010 version of GMP for the preparation of sterile preparations.

The weighing booth provides a vertical unidirectional airflow, part of the clean air

circulates in the working area, and is partially discharged to the nearby area. The

weighing booth generates a negative pressure in the working area to prevent

dust from overflowing and prevent cross-contamination, and is used to ensure

the working area in a high cleanliness environment.

2.Product Introduction

Weighing room (central weighing room) is a special studio specially used for

sampling, weighing, analysis and other functions in the new GMP specification. It

can control the dust and dust in the working area from spreading outside the

operating area. To ensure that the operator does not inhale the items being

operated, it is a special purification equipment to control dust flying.

The indoor air passes through the primary filter and the medium efficiency filter,

and is pressed into the static pressure box by the centrifugal fan, and then blown

out from the air outlet surface of the airflow diffusing air supply unit through the

high efficiency filter, and the clean air flows through the working area at a

uniform cross section wind speed so as to form a high clean working

environment.

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The operating area of the weighing chamber (central weighing chamber) is

maintained at a negative pressure state, discharging 10% of the circulating air. The

air in the center weighing chamber is self-circulating through a three-stage

filtration system (high-efficiency filter removes 99.99% of all dust above ≥0.3μm)

and is designed to meet the GMP requirements of the pharmaceutical company.

The weighing and packaging of dust and reagents in the equipment can control

the spilt and rising of dust and reagents, prevent the inhalation harm of dust and

reagents to human body, and avoid the cross pollution of dust and reagents, so

as to protect the external environment and the safety of indoor personnel.

3. Technical Parameters：

Model ZJSJ-1000 ZJSJ-1200 ZJSJ-1400 ZJSJ-1600 ZJSJ-1800 ZJSJ-2000 ZJSJ-2400

Clean lever ISO5( Class 100）/ISO6( Class 1000）

Pre-filter G4

Mid-filter F9

Hepa-filter H14

Downdraft

advantage

speed

0.45±20%

Illuminance ≥300LX

Noize ≤65dB（A）

Voltage （AC380V，3Phase,50Hz)

Overall D（mm) 750

Overall H（mm) 2400

Overall W（mm) 1000 1200 1400 1600 1800 2000 2400

Inner D（mm) 900

Inner H（mm) 2000

Inner W（mm) 900 1100 1300 1500 1700 1900 2300

Weight（KGS) 400 450 500 550 600 650 780

Lamp and Qty. 15W*2

Power 1100W 1100W 1100W 1100W 1100W 1650W 2200W

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Controller Frequency converter

Material SS 304 1.2mm

Air exhuasted 10%

Note Can be customized according to the different use of different customers non-standard size

4.Working Principle

The low-negative pressure airflow flows through the lower sedimentation type to

the operating area, producing a clean and sterile local environment. Thereby,

cross-contamination between different drugs is avoided. The cleanliness of the

operating area is generally 100.

5.Subject of Protection

1. Protect drugs

2. Protect operator

3. protect environment

6.Airflow system:

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7.Configuration description

1. Filter: Three-stage filtration with primary, medium and high efficiency filters,

high efficiency filter meet DOP test requirements

2. Differential pressure gauge: 0---500pa*1 , 0-250pa*1, 0-125pa*1

3. Polymer flow film: whihc can significantly improve the uniformity of the wind;

4. Control: digital display touch screen, frequency conversion control, air volume

display, differential pressure display, etc.;

5. Lighting/sterilization: The weighing booth is more than 300Lux from the

ground

6. Working station: place the electronic balance and fill in the records

7.Socket: It is equipped with waterproof and dustproof industrial socket. Rating:

IP66.

8.Structure

The weighing booth main body is made of high-quality 304 stainless

steel, which is bent, welded and assembled. It has high flatness and easy to

clean. It’s electrical cabinets are available in both

internal and external options. The air outlet surface is a polymer unifo

flow film, and the wind speed uniformity can be controlled at 5%-10%. The

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primary, middle and high-efficiency filters can be disassembled and

replaced from the front.

9.Instructions

Before commissioning, make sure that the wires are connected correctly and read

the instructions carefully.

➢ Differential pressure gauge which indicates the differential pressure before

and after the high efficiency filter. When the value becomes twice the initial

value, it indicates that the high efficiency filter needs to be replaced.

➢

➢ Frequency converter: After the inverter is powered on, press the FWD button

of the inverter to start the fan. The air volume can be adjusted according to

the knob on the inverter. If the fan needs to stop running, you can directly

press the FWD button on the inverter. The inverter panel displays the

frequency of the current running fan power supply. The air deflector can be

adjusted according to the wind speed requirement.

➢ Fluorescent button: Controls the turning on and off of the fluorescent light.

➢ Power button: With indicator light, when the power is turned on, the indicator

lights when the button is pressed.

➢

➢ The emergency button controls the opening and closing of the total power of

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the device.

➢

10.Maintenance and Cleaning

10.1 Replace Medium Efficiency.

The equipment ’ s power must be disconnected before performing any

maintenance or repairs.

Tools: cross screwdriver, wrench, etc.

Note: To ensure good filter filtration, it is recommended to replace or clean the

pre-filter every three to six months.

10.2 Disassemble and replace the HEPA filter

The main power supply of the equipment must be disconnected prior to any

maintenance and operation.

Tools: cross screwdriver, wrench, etc.

Step 1: Remove the equalizer from the top. When removing the equalizing film,

just remove the screw of the current sharing frame. (The screw is hidden inside,

and it can be seen by opening the uniform film.)

Step 2: Loosen the filter fixing clamp and remove the liquid tank high efficiency

filter.

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Step 3: At this point, you can see the exhaust filter on the inner side, loosen the

filter to fix the clamp, and remove the high efficiency filter.

Step 4: Place the new HEPA/ULPA filter on the filter frame and reinstall it in the

order of installation.

Note: Before replacing a new HEPA/ULPA filter, please check the new filter

carefully to see if it is damaged or defective.

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ZHEJIANG FUXIA MEDICAL TECHNOLOGY CO.,LTD.

ADD:JINGKOU NATIONAL ROAD 104,DAOXU TOWN,

SHANGYU,ZHEJIANG PROVINCE

CONTACT:0086-13795445610

POSTCODE:312300

Website:www.fuxia168.com

TEL：0575-81275702

FAX：0575-82928859