MRC MDW-ECO Manual de usuario

MDW-ECO

Microwave Reaction System

Instruction

3, Hagavish st. Israel 58817 Tel: 972 35595252, Fax: 972 3 5594529

[email protected]

MRC. 2.23

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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Safety

Warning: This instrument is only for laboratory use. If the

instrument is damaged without following the manual during use, the

manufacturer refuses to bear all consequences.

Warning: If any consequence caused by incorrect use of the

instrument or not following the instruction of operation manual, the

company will not bear any safety problem of the use of the instrument.

Warning: Not following this instruction to operate the instrument

may weaken the safety performance of the instrument.

Warning: Please follow the laboratory safety regulation to deal

with all solutions in inspection process. Operators shall wear rubber

gloves, laboratory clothes and goggles.

Warning: Please use the power cord provided by MRC. Other

power cord may influence the safety performance of the instrument.

Warning: This instrument is equipped with special power plug to

prevent from electric shock. Please use grounding socket.

Warning: Risk of electric shock. Only professional and qualified

personnel are allowed to uncover the machine cover and the plate.

Warning: This instrument is not allowed to be used in

environment that of explosion risk.

Warning: The power switch in the right lower part must be

accessible without obstacles at any time, so as to ensure the power can

be shut down at any time.

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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Attention: Please make sure not to make liquid solutions contact

electric wires or electrical parts.

Attention: Please don’t use the instrument if it goes wrong, and

please contact MRC service team.

Attention: This instrument can only be repaired by MRC

authorized personnel. It’s recommended by MRC to use original spare

parts. The quality warranty will become invalid if spare parts from other

sources are used.

Attention: The unfolding, assembly and installation of this

instrument shall be conducted by MRC authorized personnel.

Attention: Please read this manual carefully for the safe and

smooth operation of the experiment! Laboratory personnel who have not

used similar instruments should attend basic training.

Attention: This instrument is designed and tested in accordance

with European Union Standard (CE). In order to secure continuous

conformance of the standard, this instrument can only be connected to

equipment fulfilling CE requirements.

Attention: Please keep this manual properly and hand it over

when the instrument operator changes. The company reserves the right

to upgrade the product. If the contents of this manual are changed

without prior notice.

Please make sure to close water, electricity and gas switch of the

instrument after laboratory! (Please operation according to actual

situations!)

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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I. Overview

1.1 Overview

First of all, thank you for choosing MDW-ECO Microwave Digestion/

Extraction System. We appreciate your trust and will try our best to serve

you!

Microwave digestion is a kind of sample pretreatment technology raised

in the middle of 1980s, it is now widely used in the analysis of heavy

metal elements in food, environmental samples, human or animal

samples, agricultural products, herb samples, textiles, alloy, cosmetics

and mineral samples due to its advantages of quick heating speed, even

heating, low margin, high efficiency and energy saving.

The MDW-ECO microwave digestion instrument developed and

produced by our company adopts industrial magnetron and non-pulse

frequency conversion control technology to realize rapid and complete

digestion of inorganic or organic samples under high temperature and

high pressure. in addition, various safety measures guarantee safe and

stable operation of the instrument.

Characteristics of MDW-ECO Microware Digester：

a、Stable and efficient digestion capability;

b、More exquisite and user-friendly operation interface;

c、Reliable performance and high safety;

d、Automatic identification of rotor model, automatic vessel count.

1.2 Instrument operation conditions

a、The instrument shall be away from heating source to prevent hot gas

and vapor from entering the instrument to cause failure. Besides, it shall

also be away from water source to avoid electricity leakage danger

caused by splashed water;

b、The instrument shall be placed in a solid and stable table, the

experimental station shall be able to hold at least 140 kg without

vibration; the left, right and top part of the instrument shall not have any

covers but with at least 50cm of clearance, the rear wall shall leave at

least 30cm of clearance to keep good ventilation;

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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c、Please keep the instrument away from strong magnetic materials or

electrical appliances with magnetism, because the external magnetic

field will interfere with the uniform distribution of magnetic field in the

furnace and reduce the heating efficiency;

d、The current shall be AC 220±10% V frequency (50/60) Hz,

electricians shall confirm the instrument has true and good grounding,

the grounding resistance shall be less than 4 ohm, poor grounding may

damage machine. It’s suggested to equip with independent stable power

supply over 3000W, the voltage fluctuation shall not exceed 10V;

e、Please place the instrument close to the fume hood or other

ventilation equipment, but not in the fume hood, so as to prevent the

equipment from being damaged by acid mist;

f、The required operation temperature is 0℃～40℃, humidity is ＜80%.

The best operation temperature is 20℃～25℃and the humidity is 40～

60%;

g、Please install the exhaust duct before operation.

Special warning

a、Please read the manual carefully to secure safe and smooth

operation of the experiment. Experiment personnel who have not

operated similar instruments shall attend basic training;

b、It’s prohibited to use perchloric acid to digest samples;

c、Please carefully observe temperature change when digesting

samples with concentrated sulfuric acid;

d、It’s prohibited to digest inflammable and explosive dangerous goods

(see matters for attention for details);

e、It’s prohibited to conduct no-load heating of the instrument;

f、Please keep the manual properly. When operators of the instrument

change, please hand over the manual together;

g、The company retains the right to upgrade the product. It will not be

separately notified if there’s any change of the manual.

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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II. Appearance and working principle of instrument

2.1 Appearance of instrument

Figure 2.1.1 MDW-ECO front view

Function of each component:

Touch screen: Display menu, method parameters and instrument status,

and touch operation is available;

Door opening button: Open and close safety door;

Safety door: Ensure the sealing between the door and the microwave

reaction chamber to prevent microwave leakage;

Observation window: Observe the situation in the chamber when the

safety door is closed;

Power supply switch: Turn on and turn off power supply of the instrument

Power supply socket: Connect to standard power supply wire;

USB, network port: Upgrade system and connect to Internet.

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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Figure 2.1.2 MDW-ECO rear view

Function of each component:

Solvent detection socket: Externally connect to organic solvent detection

module;

Antenna: Connect to wireless network;

Chamber air outlet: Connect to standard exhaust duct;

Chamber air inlet: The main air inlet of the chamber shall not be covered;

Cooling hole: Cooling hole of the instrument, shall not be covered here.

2.2 Working principle

Place samples and digestion acid in sealed digestion vessel, then place

the digestion vessel in the microwave chamber, realize the control of

magnetron by controlling the output of the frequency conversion board,

and make the magnetron generate microwave. Under the action of

microwave field, the polar molecules in the sample and the digestion acid

rotate rapidly, and the friction between the molecules generates heat,

thus realizing the temperature rise of the sample and digestion acid. The

digestion vessel is airtight, which generates high temperature and high

pressure to reach digestion condition and break the initial form of

samples, make the elements to be measured have high valence state

precipitation (ionization), which is sample dissolution.

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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III. Main performance

3.1 Technical index

Power supply: AC 220±10% V (50/60) Hz;

Microwave power: Single magnetron, maximum microwave output power

1000W;

Microwave power control: Full range non-pulse frequency conversion

control;

Microwave frequency: 2450MHz;

Microwave furnace chamber volume: 36L;

Furnace chamber material: All stainless-steel industrial furnace chamber

with anti-corrosive coating;

Rotor model: 6 bits/8 bits/10 bits;

Rotor speed: 6rpm;

System control: Android operation system;

Input control: Touch screen input;

Temperature measurement and control: Infrared dual temperature

measurement system;

Infrared temperature measurement range: 0～305℃;

Temperature measurement accuracy: ±0.1℃;

Pressure measurement and control: High-precision new semiconductor

pressure sensor;

Pressure sensor pressure measurement range: 0-15MPa;

Pressure sensor pressure measurement accuracy: ±0.01MPa;

Communication interface: USB/network cable;

Rotor design: One-way continuous synchronous rotation;

Design maximum working pressure: 4.5MPa;

Exhaust system: High power corrosion-resistant turbine fan, turbulence

and high efficiency air cooling;

Volume: 480mm×560mm×575mm (W×D×H);

Weight: 45kg.

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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IV. Installation and commissioning

4.1 Unpacking inspection

After unpacking the instrument, please check the whole machine and

accessories specified with the attached packing list to see whether

there’s any damage, if so, please contact with the manufacturer in time.

(Please keep the damaged parts.)

a、Unpack the transportation box carefully.

Attention: please keep the packaging box and packaging foam of

the instrument to facilitate following transportation.

b、The instrument shall be taken out by at least two people and put on

the experiment station. Check the instrument and accessories with the

packing list, if any wrong instrument or accessories, incomplete

accessories or abnormal accessories found, please contact with the

dealer or manufacturer.

Attention: when carrying the machine, the stress point should not

be placed on the furnace door, but on the four feet at the bottom.

4.2 Installation conditions

a、The instrument shall be away from heating source to prevent hot gas

and vapor from entering the instrument to cause failure. Besides, it shall

also be away from water source to avoid electricity leakage danger

caused by splashed water.

b、The instrument shall be placed in a solid and stable table, the

experimental station shall be able to hold at least 140 kg without

vibration; the left, right and top part of the instrument shall not have any

covers but with at least 50cm of clearance, the rear wall shall leave at

least 30cm of clearance to keep good ventilation.

c、Please keep the instrument away from strong magnetic materials or

electrical appliances with magnetism, because the external magnetic

field will interfere with the uniform distribution of magnetic field in the

furnace and reduce the heating efficiency.

d、The current shall be AC 220±10% V frequency (50/60±1) Hz,

electricians shall confirm the instrument has true and good grounding,

User's Manual for MDW-ECO Microwave Digestion/ Extraction System V1.0

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the grounding resistance shall be less than 4 ohm, poor grounding may

damage machine. It’s suggested to equip with independent stable power

supply over 3000W, the voltage fluctuation shall not exceed 10V.

e、Please place the instrument close to the fume hood or other

ventilation equipment, but not in the fume hood, so as to prevent the

equipment from being damaged by acid mist

4.3 Installation steps

a、Place the instrument stably on the experiment station, the back side

of the instrument shall be 20cm away from the wall. The distance

between power supply socket and the machine shall be less than one

meter. It’s suggested to equip with air switch, electricity switch and

reliable ground wire.

b、Insert the vent pipe into the air outlet at the rear of the instrument,

and place the other end in the fume hood.

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