HFD-4 - Dehumidifier Vevor - Free user manual and instructions

USER MANUAL HFD-4 Vevor

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FREEZE DRYER

MODEL: HFD-4

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VEVOR®

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FREEZE DRYER

MODEL: HFD-4

Exterior view of a white laboratory oven with digital display and connected to a blue industrial device with tubing (no visible text or symbols)

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This is the original instruction, please read all manual instructions care before operating. VEVOR reserves a clear interpretation of our user manual. The appearance of the product shall be subject to the product received. Please forgive us that we won't inform you again if there are technology or software updates on our product.

General

1. Introduction

Vacuum freeze drying is the removal of water or other solvents from frozen samples. During the whole drying process, the sample is in li state and the temperature is generally lower than -10. The purpose of vacuum freeze drying is to restore the original characteristics of the sample after rehydration.

Due to the drying process being carried out at low temperatures, it be used for materials that are prone to denaturation at high temperature and can ensure that the properties of other compounds do not chan. Most foods, such as fruits, vegetables, meat, pet food, milk, candies, converted into dried samples through vacuum freeze-drying. Vacuum freeze-drying is the mildest process for preserving the biochemical properties of sensitive tissues or other tissues.

HFD-4 vacuum freeze dryer is a type of freeze dryer used in house. Freeze dried fruits, vegetables, candies, meats, liquid samples. Multiple ingredients can be processed on the same freeze dryer:

Temperature control of pre frozen shelf surface

Freeze dried samples can be processed at user-defined temperatures. Drying at freezing limit temperature - user-defined samples, high vacuum drying, can remove capillary bound water molecules.

1. Specification for HFD Series freeze dryer

product name	Power (w)	Host size (L*W*H) mm	Product Description
HFD-4 Vacuum Freeze Dryer	1550	500*640*9 00	Cold trap temperature: ≤-35°C; Drying temperature: -25~+60°C No load: <5Pa Water catch capacity: 4KG Separator: Four layers with heated separator	Partition size: 210mm*430mm; Partition spacing: 45mm; Material tray size: 200mm*425mm, 4 pieces;

4. Safety

	Attention: Remove the power plugThe power should be shut down, and the power plug be removed when maintenance or open the frame cov
	Attention: Chemical solventThe samples with high acid or solvent content can not in the absence of special protection (if necessary, plea contact the service department), otherwise the freeze dr may be corroded. When drying containing azide should more attention to it, because with copper or other non metal reaction will explode.
	Attention: Chemical solventThe samples with high acid or solvent content can not in the absence of special protection (if necessary, plea contact the service department), otherwise the freeze dr may be corroded. When drying containing azide should more attention to it, because with copper or other non metal reaction will explode.
	Warning: Do not touch the condenser chamber's int surfaceIn the process of freezing, the temperature of condens chamber is very low. When putting sample inside, the do not touch chamber. Otherwise the fingers may freeze surface.
	Note: delivery or handling requirementsDon't hold the control panel when delivery and put do machine. Be careful with your hand to avoid crushing.

5.Below operations are prohibited

(1) The freeze dryer is not properly installed
(2) It's not allowed or authorized
(3) The tray is not fixed

(4) It is not possible to freeze dry corrosive substances without special safety measures. Even in the case of protection, it is necessary to e that no corrosion to reduce the mechanical strength of the trap, door panels, and other accessories.
(5) Not allowed to add attachments. Do not use container with poor quality. Because it is very dangerous with burst risk.
(6) Do not use freeze dryers in areas where there is a risk of explosion.
(7) Do not move or compact the freeze dryer, do not lean on or rest on it when working.
(8) Do not place potentially dangerous objects, such as liquid bottles, in the vicinity of a freeze dryer.
(9) Do not dry the samples which will react when freeze dry.
(10) Do not freeze dry explosive or flammable samples.

Technical characteristics

1.Main features

(1) The machine adopts Tecumseh or Secop, rapid cooling
(2) LCD control system, easy to operation, and powerful function
(3) The dry room door is made of colorless transparent organic glass, and the whole process of freeze drying can be observed.
(4) The vacuum pump is connected by international standard KF quick connector.
(5) Stable performance, easy operation and low noise.

2. Technical performance

(1) Condenser chamber temperature : ≤-35°C (without load)

(2) Vacuum: under 5Pa (without load)

Working condition

1. working ambient temperature : 10^ C \~ 30^ C relative humidity : ≤70%

supply voltage : single phase220V-230v or120v

Horizontally, no conductive dust, explosive, corrosive gas and electromagnetic interference.

1. Delivery and storage condition: ambient temperature : -35°C \~ 50

relative humidity : ≤93%

Storage environment should be well ventilated, non corrosive gas.

1. Security class I type B

Normal information for vacuum freeze drying

1. Basic knowledge

Vacuum freeze-drying is one of the most gentle ways to dry. It is based on the sublimation principle, that is, the solid phase directly into the gas of this physical phenomenon. The freeze-dried material is placed in a vacuum drying chamber for drying, and the water vapor produced by cold trap is condensed to form ice, so as to achieve the purpose of eliminating water vapor. Vacuum pump is used to discharge the air in drying room, not including water vapor.

The baffle plate is provided with a heating device, and the heat is transferred to the material through the conduction function to provide the energy needed for sublimation. When the free water in the material is sublimated, the internal bound water can also be removed from the material at a very low vacuum. This drying process is considered to last stage of drying, analytical drying.

Sublimation

The principle of sublimation can be explained briefly with water map. the pressure is higher than 611Pa, the water will go through three p of solid, liquid and gas. When the air pressure is equal to 611Pa, the dissolution curve, the vapor pressure curve and the sublimation curve three lines are at one point, that is, the three phase point. When th pressure is lower than 611Pa and reached the sublimation curve, the can be directly into a solid state gas.

Note: The three-phase point of water is 0.01 degrees C and 611

Vapour pressure curve for ice and water

Ice vapor pressure conversion meter (Sublimation curve)

°C	mbar	°C	mbar	°C	mbar	°C	mbar
0	6.110	-20	1.030	-40	0.120	-60	0.011
-1	5.620	-21	0.940	-41	0.110	-61	0.009
-2	5.170	-22	0.850	-42	0.100	-62	0.008
-3	4.760	-23	0.770	-43	0.090	-63	0.007
-4	4.370	-24	0.700	-44	0.080	-64	0.006
-5	4.020	-25	0.630	-45	0.070	-65	0.0054
-6	3.690	-26	0.570	-46	0.060	-66	0.0047
-7	3.380	-27	0.520	-47	0.055	-67	0.0041
-8	3.010	-28	0.470	-48	0.050	-68	0.0035
-9	2.840	-29	0.420	-49	0.045	-69	0.0030
-10	2.560	-30	0.370	-50	0.040	-70	0.0026
-11	2.380	-31	0.340	-51	0.035	-71	0.0023
-11	2.170	-32	0.310	-52	0.030	-72	0.0019
-13	1.980	-33	0.280	-53	0.025	-73	0.0017
-14	1.810	-34	0.250	-54	0.024	-74	0.0014
-15	1.650	-35	0.220	-55	0.021	-75	0.0012
-16	1.510	-36	0.200	-56	0.018	-76	0.0010
-17	1.370	-37	0.180	-57	0.016	-77
-18	1.250	-38	0.160	-58	0.014	-78
-19	1.140	-39	0.140	-59	0.012	-79

2. vacuum freeze-drying process

Freezing: Under normal atmospheric pressure, reduce temperature to freezing to ice structure

Drying: Under certain vacuum, such as 1pa, and keep the water in phase.

Energy input: heating, keeping some matter in solid phase. The matte temperature is controlled by certain vacuum.

3. Pre freezing

The sample could be pre freezing in freezing dryer. It's thickness should more than 1\~2cm. Otherwise it should extend Freeze drying time.

4.Main drying

Open the vacuum pump, create a vacuum environment, causing sublimation.

Warning :

■ The substance of the acid or any other substance containing corros volatile solvents should not be dried with this machine.
■ Pay special attention to azides cannot be used, because it combines with copper or other nonferrous metals will explode.
■ As soon as the water begins to sublimate, it absorbs heat and ca the temperature to drop.
■ The pressure in the drying chamber increases with the sublimation must be reduced by the condenser.

The duration of the main drying process is mainly determined by

(1) Sample's thickness
(2) Energy to sample when drying process
(3) The chamber's pressure when drying process

Increasing chamber's pressure, could increase the rate of sublimation as shorten the drying period.

The residual moisture in the dry matter is mainly determined by :

(1) The matter's temperature at final drying stage

(2) The vacuum at final drying stage

(3) When the matter's temperature is almost equal the tray's, the matter drying stage is finished. When the adsorbed water of the substance is beginning to be discharged, the final stage of drying begins.

This figure shows the material drying process with about 10% solid p material. After the main drying stage of the first 1/4 time, 50% of th is condensation. In the next 1/4 time, 50% of the remaining water is condensed.

In the process of freeze drying, the area where the material is sublit gradually shrinks from the surface to the interior, so that the water v generated by sublimation needs to pass through the dry material layer reach the outside of the material. Therefore, in the drying process, the sublimation resistance increases. The drying curve is mainly determined by the latent heat of sublimation and the velocity of water vapor transmission. In order to increase the thermal conductivity of the dry and to minimize the volume of water vapor, the drying conditions show as close as possible to the freezing point.

Drying time depends largely on the degree of vacuum drying. Along 1 vapor pressure curve on the ice, the closer the vacuum degree is to freezing point, the shorter the drying time.

Interesting association :

1.0g ice equal to

1m^3 water vapor under 100Pa pressure
10m^3 water vapor under 10Pa pressure
100m ^3 water vapor under 1Pa pressure

Energy supply when drying process

The energy needed by the dry material is mainly provided by the he plate at the bottom of the tray. The heat transfer process is shown following figure.

Effects of freeze drying of a product in a dish Vapour Heat radiation Vessel Product Sublimation zone T < critical temperature Ice core Contact: heat transfer Convection + 30°C Shelf

Heat transfer is achieved by direct contact between the bottom of the vessel and the material, as well as convection heat transfer between vessel and the material.

At the beginning of sublimation, the heat transfer between the vessel and the frozen material is very effective. However, shortly after the formation of a layer of ice free, porous, dry area. The corresponding temperature step is formed between the vessel wall and the material. dry region of the thermal conductivity decrease led to the increase of ice nucleation temperature, if the ice nucleation temperature rises to a freezing point temperature, the material began to thaw. This is especially true for heterogeneous materials and for the formation of multilayer structures. Therefore, it is necessary to precisely control the heat support temperature and pressure during the drying stage.

5. Drying endpoint and ventilation

The crude mark of the drying endpoint is the change of vacuum deg and cold trap temperature. After a period of drying, the temperature of cold trap is no longer decreased, and the vacuum degree is stable to degree.

At this time, the vacuum pump can be closed, and the drying chambe be ventilated through the vent valve.

Finally close the dryer and take out the sample.

6.Defrosting

The ice can be removed by room temperature or blower.

Installation and operation

1.Components

Labeled diagram of a laboratory oven with numbered parts for identification

Fig.1-1 Main dryer

1.Power Supply Switch	2. USB	3. Display Screen
4. Transparent door	5.. Vacuum interface	6. Water discharge and inflation valve

Technical diagram of an electrical device with numbered components for identification

Fig.1-2 Vacuum pump

1 oil outlet	2.oil level	3.oil inlet
4.Gas ballast valve	5.air outlet	6.air inlet
7.terminal	8.capacitor	9.power plug

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Fig. 1-3 connector

1. nut
2. 2.bracket
3. 3.seal ring

2. Attention when installation and testing

Warning :

•Paper, cloth, or similar materials do not near the gas circulation path or heat exchange may be blocked.
- Freeze dryer should be placed horizontally, ambition temperature is

about+10°C\~32°C.

•The clearance between dryer and wall should be more than 40cm, t enough air flow. Never near the heater or other heat source. Never sunlight directly.
•The lack of air circulation or the high ambient temperature can lead to pressure or temperature of the refrigeration system higher, or even more than the allowable operating pressure. It will be lead to failure.

1. Power source

The local power supply must be the same with the shown in namep

2.Fuse

The fuse should be 16A.

3.condensation and defrost

The condensed water is discharged through the discharge valve below freeze dryer.

1. Vacuum exhaust device

We recommend to use exhaust filter (oil mist filter). This filter can prevent the air pollution caused by the oil mist from the vacuum pump. The filter of oil mist from the vacuum pump depends on the pressure of the v. The filter is installed on the exhaust flange of the vacuum pump, which equipped with a safety valve to indicate the saturated state of the filter. 5.Start to running

Note: the correct installation of the freeze dryer must be check before starting.

Check and confirm that the vacuum pump oil has been added before starting.

Exterior view of a white industrial oven with control panel and mechanical arm (no visible text or symbols)

Fig. 1-4 Connecting

3. Installation step

1.Open the package, check the components according to the packing
2. Fill the pump's oil into pump to the middle of the level guide.

Remark: Please using required oil type;

1. Connect the pipe between pump and dryer by connectors. One side fixed on pump's air inlet, the other side is fixed on dryer's vacuum (
2. Connect the pump's power plug into dryer's vacuum pump power ou
3. Connect the power wire to dryer's main power outlet, other side coil to power supply(with ground wire);
4. Turn on the switch, test step by step according to the instructions. all the technical data are satisfy (including vacuum < 15Pa , condenser

chamber's temperature < -35^ ), the dryer could be put into usage.

4.General operation process of freeze drying

1. Connecting the freeze dryer correctly according to section 5.3;
2. Adding sample into disc (liquid sample is poured directly, solid sample bottled sample is distributed);

3. Putting disc on the tray, to ensure they are completely coincided. Of the door and locking the handle;
   4.Turning on the switch and getting in main interface;

4. In control interface, touching main interface button and getting in;

5. In main interface, touching user parameters button and getting in;
6. In user parameters interface, could setting drying process, including stage number, temperature and time for each stage;

7. Touching back to control interface. Touching button to start temperature control and freeze system to ensure the sample's temperature is char following setting values. In drying process, stage one is pre freezing. The sample will be frozen to below Eutectic point, and make sure that sample has been frozen totally;

8. When pre freezing stage finished, the process getting into drying stages (stage two and later stages). Open vacuum pump, making vacuum condition in chamber, to dry the sample. Make sure all the vent valve been closed;

9. When all stages finished, it means the drying process is over.* Open the vent valve at first, then close vacuum pump, close tempera control and freeze system. Finally, turn off the power and take off the plug. While the pressure balance between chamber inside and outside open the door, take out sample.

10. Defrosting the ice by heater. After all the ice removed, clean the *Note: Due to the specific characteristics of the material, and the thickness of the material is different, the user should be tested to determine the appropriate freeze drying process to ensure that the material is completely dry.

**The outlet of the vacuum pump should be cover to avoid dust entering.

Control system operation

The dryer's control system is operated through touch screen. Please find the instructions carefully so as to use them correctly and keep them properly for reference.

1. Operation attentions
2. In case of fire, explosion or machine damage, it is forbidden to use

flammable, explosive gas and steam places.

1. In order to prevent electric shock or instrument failure, the power can be connected to power supply only after all the wiring completion finished not allowed to touch the interior and change the instrument.
2. Except user parameters, other parameters have been set up before factory, do not arbitrarily change.
3. Before cleaning. Clean power meter display with a soft cloth or cotton paper please. The display is easy to scratch, prohibit the use of hard objects wipe or touch the screen.
4. Control system interface and parameter setting of NovaDryer-HF600

Home page & Name			Operation
		Home Page	This interface is used to switch between Chinese and English

	Recipe management	In the interface, you can set the process you need, but most them do not require you to set up. We prepare most of the parameters for you t adapt to the equipment. The only you need to operate the temperature control curve(The temperature and maintenance time tha need to be controlled during the drying process). More detailed setting methods, please read sop
	Temperature curve	On this interface, t process curve of the device can be seen or it can be displayed in the form of a report. After inserting the USB flash drive, the data can be exported. It should be noted that the touch screen has limited RAM and you need to clean the RAM regularly every month
	Operation screen	After the formula is selected, directly enter the operation screen, click the "refrigerator on", and then click on the "automatic operation on".
	Data Recording	Record freeze-dried data, which can be exported to U disk

Attentions

1. Must use a grounded power outlet.
2. Working environment temperature≤32°C, the humidity≤80%.
3. After drying finished, open the vent valve to inflate air at first, then the vacuum pump to prevent sample contaminated by the pump oil. I sudden power outage, open the vent valve immediately, and take out samples as soon as possible, properly stored.
4. Keep the seal ring clean, and cannot Scrub with organic solvents.
5. Replace the vacuum pump's oil after working 100 hours, check and maintenance the pump regularly.
6. Do not frequently switch power supply and refrigerator, If the refrig is shut down caused by operation, at least three minutes to wait, an restart the refrigerator.

Common trouble and shooting

The vacuum cannc less than 15Pa	1	Check the connecting between vacuum pu and dryer, if the connector fitting correct tightened?
	2	Check vent valve, if closed totally?
	3	Check the seal ring, if fitting correct?
	4	Check the vacuum pump working condition the oil clean?
Vacuum pump injection	1	Check if some valve not closed, the char not in seal condition.
	2	Check if the pump oil level too high, the position is the middle of the gauge.
	3	Check if the pump oil emulsion?
	4	Check if the condenser's temperature too the pump should be start after the tempe lowered.

Warranty and maintenance

1. The dryer is warranty for one year from the date of sale.
2. The dryer is full life maintenance by our company.
3. Please check and keep the annex of dryer. Please send the warrant cards back to our company. We will fill the information into our files provide services.

CORRECT DISPOSAL

This product is subject to the provision of european Directive 2012/19/EU. The symbol showing a wheelie bin crossed through indicates that the product requires separate refuse collection in the European Union. This applies to the product and all

accessories marked with this symbol. Products marked as such may be discarded with normal domestic waste, but must be taken to acoll point for recycling electrical and electronic devices.

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Technical characteristics

1. Główne cechy

Normal information for vacuum freeze drying

Vapour pressure curve for ice and water

Effects of freeze drying of a product in a dish Vapour Heat radiation Vessel Ice core Product Sublimation zone T < critical temperature Contact: heat transfer Convection + 30°C Shelf

Installation and operation

1. Komponenty

Labeled diagram of a laboratory instrument with numbered parts for identification

Technical diagram of an electrical device with numbered components for identification

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Rys. 1-3 złącze

Exterior view of a white industrial oven with control panel and piping (no visible text or symbols)

Rys. 1-4 Złączony

Control system operation

Common trouble and shooting

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GEFRIERTROCKNER

MODELL: HFD-4

Exterior view of a white industrial machine with a blue pump connected via tubing (no visible text or symbols)

Technical characteristics

1. Hauptmerkmale

Normal information for vacuum freeze drying

1. Grundkenntnisse

Vapour pressure curve for ice and water

Effects of freeze drying of a product in a dish

Vapour Heat radiation Vessel Ice core Product Sublimation zone T < critical temperature Contact: heat transfer Convection + 30°C Shelf

Installation and operation

1. Komponenten

Labeled diagram of a laboratory instrument with numbered parts for identification

Technical diagram of an electrical device with numbered components for identification

Abb.1-2 Vakuumpumpe

1 Ölauslass	2.Ölstand	3. Öleinlass
4. Gasballastventil	5.Luftauslass	6.Lufteinlass
7.Terminal	8. Kondensator	9.Netzstecker

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Exterior view of a white industrial oven with control panel and piping (no visible text or symbols)

Abb. 1-4 Verbinden

Control system operation

Common trouble and shooting

Warranty and maintenance

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Technical characteristics

2. Performances techniques

Normal information for vacuum freeze drying

Vapour pressure curve for ice and water

Effects of freeze drying of a product in a dish

Vapour Heat radiation Vessel Ice core Product Sublimation zone T < critical temperature Contact: heat transfer Convection + 30°C Shelf

Installation and operation

1. Composants

Labeled diagram of a laboratory oven with numbered parts for identification

Fig.1-1 Sécheur principal

Technical diagram of an electrical device with numbered components for identification

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Fig. 1-3 connecteur

Exterior view of a white industrial oven with control panel and piping (no visible text or symbols)

Fig. 1-4 De liaison

Control system operation

Common trouble and shooting

Warranty and maintenance

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VRIESDROGER

MODEL: HFD-4

Exterior view of a white industrial machine with a blue pump connected via tubing (no visible text or symbols)

HULP NODIG? NEEM CONTACT MET ONS OP!

Technical characteristics

Normal information for vacuum freeze drying

1. Basiskennis

Vapour pressure curve for ice and water

IJsdampdrukconversiemeter (sublimatiecurve)

°C	mbar	°C	mbar	°C	mbar	°C	mbar
0	6.110	-20	1.030	-40	0.120	-60	0.011
-1	5.620	-21	0.940	-41	0.110	-61	0.009
-2	5.170	-22	0.850	-42	0.100	-62	0.008
-3	4.760	-23	0.770	-43	0.090	-63	0.007
-4	4.370	-24	0.700	-44	0.080	-64	0.006
-5	4.020	-25	0.630	-45	0.070	-65	0.0054
-6	3.690	-26	0.570	-46	0.060	-66	0.0047
-7	3.380	-27	0.520	-47	0.055	-67	0.0041
-8	3.010	-28	0.470	-48	0.050	-68	0.0035
-9	2.840	-29	0.420	-49	0.045	-69	0.0030
-10	2.560	-30	0.370	-50	0.040	-70	0.0026
-11	2.380	-31	0.340	-51	0.035	-71	0.0023
-11	2.170	-32	0.310	-52	0.030	-72	0.0019
-13	1.980	-33	0.280	-53	0.025	-73	0.0017
-14	1.810	-34	0.250	-54	0.024	-74	0.0014
-15	1.650	-35	0.220	-55	0.021	-75	0.0012
-16	1.510	-36	0.200	-56	0.018	-76	0.0010
-17	1.370	-37	0.180	-57	0.016	-77
-18	1.250	-38	0.160	-58	0.014	-78
-19	1.140	-39	0.140	-59	0.012	-79

2. vacuum vriesdroogproces

Effects of freeze drying of a product in a dish

Vapour Heat radiation Vessel Ice core Product Sublimation zone T < critical temperature Contact: heat transfer Convection + 30°C Shelf

Installation and operation

1. Componenten

Labeled diagram of a laboratory instrument with numbered parts for identification

Technical diagram of an electrical device with numbered components for identification

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Exterior view of a white industrial oven with control panel and mechanical arm (no visible text or symbols)

Control system operation

2020-10-24 COM 08:29
Recipe: 0 Save Apply
Number	Hour	Minute	TEMP	Number	Hour	Minute	TE
				Total number of segmentsStage of vacuum pump startup
Monitor	Operation	Recipe	Trend	Record	Hon

Common trouble and shooting

Warranty and maintenance

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FRYSTORK

MODELL: HFD-4

Exterior view of a white industrial machine with a blue pump connected via tubing (no visible text or symbols)

BEHÖVER HJÄLP? KONTAKTA OSS!

Technical characteristics

1. Huvuddrag

Normal information for vacuum freeze drying

Vapour pressure curve for ice and water

Effects of freeze drying of a product in a dish Vapour Heat radiation Vessel Product Ice core Sublimation zone T < critical temperature Contact: heat transfer Convection + 30°C Shelf

Installation and operation

1. Komponent s

Labeled diagram of a laboratory incubator with numbered parts for identification

Fig.1-1 Huvudtork

Technical diagram of a mechanical device with numbered parts labeled 1 through 9

Fig.1-2 Vakuumpump

1 oljeutlopp	2.oljenivå	3.oljeinlopp
4. Gasballastventil	5.luftuttag	6.luftintag
7.t erminal	8. kondensator	9.strömkontakt

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Fig. 1-3 kontakt

1. mutter
2. 2 . b racket
3. 3 . tätningsring

Exterior view of a white industrial oven with control panel and mechanical arm (no visible text or symbols)

Fig. 1-4 Ansluter

Control system operation

Common trouble and shooting

Warranty and maintenance

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Exterior view of a white industrial machine with a blue pump connected via tubing (no visible text or symbols)

Technical characteristics

Normal information for vacuum freeze drying

Vapour pressure curve for ice and water

Effects of freeze drying of a product in a dish Vapour Heat radiation Vessel Product Ice core Sublimation zone T < critical temperature Contact: heat transfer Convection 30°C Shelf

Installation and operation

1. Componentes

Labeled diagram of a laboratory instrument with numbered parts for identification

Fig.1-1 Secador principal

Technical diagram of an electrical device with numbered components for identification

Fig.1-2 Bomba de vacío

Technical diagram of a mechanical component with numbered parts labeled 1, 2, and 3

Fig. 1-3 Conector

Exterior view of a white industrial oven with control panel and piping (no visible text or symbols)

Figura 1-4 Conectando

Control system operation

Common trouble and shooting

Warranty and maintenance

Exterior view of a white industrial machine with a blue pump connected via tubing (no visible text or symbols)

Technical characteristics

Normal information for vacuum freeze drying

Vapour pressure curve for ice and water

Installation and operation

1. Componente s

Labeled diagram of a laboratory instrument with numbered parts for identification

Exterior view of a white industrial oven with control panel and mechanical arm (no visible text or symbols)

Control system operation

Common trouble and shooting

Warranty and maintenance