Assum DZ SERIES User manual

USER MANUAL

INDEX
I. Product description and usage
II. Techincal parameters
III. Machine Overview
IV. Working Princple
V. Circuit Diagram
VI. Operation
VII. Programming
VIII. Cautions
IX. Assembly diagrams
X. Trouble-shooting
XI. Maintenance
XII. List of accessories

I. Product description and usage
DZ series vacuum packing machine is used for removing air
from the package and sealing the mouth of bag. Vacuum packing
reduces atmospheric oxygen, limiting the growth of aerobic
bacteria or fungi, and preventing the evaporation of volatile
components.
The 2 chambers work in turn: when one chamber is pumping and
sealing , workers can place product to packing on the other chamber,
so that it is more efficient than single chamber.
DZ series double chamber vacuum packing machine combine a
sleekly built and functional design with optimal ease of use and a
long service life. The clever design ensures compliance with the
hygiene standards at all times.
II.Technical parameters
Model Voltage
Power
of
motor
Power
of
heater
Barometric
pressure
Speed of
pump
Depth
of
chamber
flat
Dimension N.W
flat
flat
flat
flat

III. Machine Overview
Fig. 1
1.Lid 2. parallel arms 3. sealing bar 4. vacuum chamber
5. interrupter 6. controlling panel 7. Housing

Fig. 2
solenoid valve for sealing Solenoid valve for pumping
Air bag Sealing bar
Vacuum meter
Vacuum pump
Step 1 vacuum. There is an air bag between sealing bar and lid. When
the pump is working, the air in the air bags and vacuum chamber is
vacuumed simultaneously, so that the sealing bars and silicon bars not
close up.
Step 2 thermal seal. When the vacuuming finished, to inflate the air
bags the solenoid YV1 switches on , and the vacuum chamber keep
vacuum.
Step 3 devacuum. To let air enter the chamber, the solenoid YV2
switches on, the chamber open, the entire process is finished.
V. Circuit Diagram
Normal input power: 1-phase 220V/50HZ or 3-phase 380V/50HZ other
voltages are also customizable.
IV. Working Principle

4
Fig.3 Single pump 1-phase power supply
Solenoid
Valve
Limit switch Contactor
Controlling circuit board
Sealing wire
(Resistance)
Solenoid
Valve

5
Fig.4 simple pump 3-phase power supply
QF: Interruptor breaker
SA: Isolating switch
ESP: Emergency button
KM: Contactor
KT: Timing relay
T1: Transformer for controlling
T2: Transformer for thermal sealing

6
Fig.5 double pump 1-phase power supply
QF: Interruptor breaker
SA: Isolating switch
ESP: Emergency button
KM: Contactor
KT: Timing relay
T1: Transformer for controlling
T2: Transformer for thermal sealing

VI. Operation
1. Vacuum meter
2. Time and status indicator.
" " indicates the machine is in start-up mode, in which power is connected and
machine is not working yet. indicates devacuum, and number indicates the
current value of the active function during the program cycle or the set value of the
selected function when the machine is inactive.
3. STOP Press this button to cancel any process and back to start-up mode.
4. SETTINGS button Press this button on the start-up mode to select VACUUM,
SEALING, COOLING and GASSING. Adjust each of them by pressing the up
and down . Press OK to confirm.
5. OK button Press OK to confirm your settings.
6. UP button This button is only active in vacuum time setting mode and sealing
setting mode.
7. DOWN button This button is only active in vacuum time setting mode and sealing
setting mode.
8. low heat indicator
9. medium heat indicator
10. high heat indicator
11. SEALING TEMP. button Press button to select the level of sealing temperature.
12. SETTINGS button Press this button on the start-up mode to select VACUUM,
SEALING, COOLING and GASSING. Adjust each of them by pressing the up
and down . Press OK to confirm.

VII. Programming
1. Vacuum time range: 0 to 99 s.. (Normally 20 s., and for liquid, 25 s is
recommended.)
2. Sealing time range: 0 to 3.5 s.. (normally 1.5 s., and for thick film or
with aluminum layer, 3 s..)
3. Level of sealing temperature: low, medium, high.(for thick film or with
aluminum layer, select 'high')
4. Cooling time (holding time): 2 s. by default. To prevent aluminum from
wrinkle, 15 s. is recommended.
Instruction
Power on the machine, the indicator shows , that is the right state
ready to work.
1. Vacuuming time setting
Press SETTINGS the corresponding indicator blinks then press UP and
DOWN to adjust the time finally press OK to confirm.
2. Sealing time setting
Press SETTINGS the corresponding indicator blinks then press UP and
DOWN to adjust the time finally press OK to confirm.
3. Temperature setting
Press SETING TEMP. to select the level of sealing temperature : low,
medium, high and off in turn.
4. Stop button
If unusual situation occurs please press this button, to stop the work. This
button can not power off the machine, but return to start-up mode.
5. Working operation
a. Power on the machine, according to precaution, then the machine enter
start-up mode. Place plastic bag in the chamber, lift the metal stick to hold the
mouth of the bag, close the lid of the chamber, the machine start the following
programs:

b. Vacuuming: this program beings at the same time, the timer counts down
from the set value, then comes to the next program.
c. Sealing: this program beings, and the timer counts down from the set
value, then comes to the next program.
d. Holding time: 2~10 s. Adjustable. The timer shows the set value of
sealing. Then comes to the next program.
e. Devacuum: this time is fixed to 2 s. and the timer shows then
the entire operation is finished.
VIII. Cautions
1. This machine should be installed horizontally, with good ventilation and
no corrosive materials around.
2. Make sure the power supply of this machine is properly earthed.
3. Make sure the volume of vacuum oil is between the 1/4 and 3/4 of the
lens of oil.
4. If the vacuum pump rumbles and the vacuum meter do not move, that
means the direction for motor is wrong. Please interchange any two phases of
the 3-phase power.
5. Please set the suitable vacuuming time according to the product. The
longer the vacuuming time, the higher the degree of vacuum.
6. Please set the suitable sealing time and the level of temperature
according to the thickness and material of plastic film.

IX. Assembly diagrams
Fig.1 sealing parts
Container for air bag
Container for sealing bar
Tube for spring
Supporter for spring
Spring
Bolt M6
Heating element resistance
Copper bolt
Teflon cloth
Sealing bar

Fig.2 sealing parts
Lid of vacuum chamber
Container of air bag
Air bag
Container of sealing bar
Sealing bar
Copper bolt
Silicone bar
Stick for holding bag
Gasket
Rubber tube
Bolt for fix silicone bar
Plat of vacuum chamber
Insulate tube

X. Trouble-shooting
Form 1 vacuum system
Trouble
Not vacuum
Not properly vacuum
Cannot open lid of
vacuum chamber
Vacuum system is
alright but still with
air in bags
Cause
Pump do not work
Lid is not tightly closed
Solenoid value is broken or short
circuited
Circuit board is broken
Air bag is is broken
Tube which connected solenoid
valve leaks
Gasket is broken, aged or not
finely sealed
Solenoid valve leaks
Solenoid valve for devacuum is
broken or short circuited
The sealing bar may not
repositions
The gasket is contaminated
The gasket is not even
The gasket is broken
Method
See From 3
Adjust bolts on the
parallel arms
Check or change the
solenoid value
Check or change the
circuit board
Check or change the air
bag
Tight or change the tube
Change it or flatten the plat of
vacuum chamber with sandpaper.
Wash and clear the valve
or change it
See From 2
Adjust the position of
sealing bar
Clear the gasket
Even the gasket
Charge the gasket
Form 2 Solenoid valve
Trouble
Leaks air
Get stuck or can
not start
Cause
The gasket is contaminated
The gasket is not even
The gasket is broken
Wiring iswrong or not well contacted
The fuse has blown
The silicon diode rectifier is broken
The coil is blown
Solenoid valve is contaminated
The spring is broken or get stuck
The voltage is not stable
Method
Clean the gasket
Even the gasket
Charge the gasket
Re-wire according to the
diagram
Change it
Change it
Change the entire valve
Clean it
Change it
Contact the entire machine
to a regulator

From 3 pump
Trouble
Not sufficient
vacuum
Pump can not start
Pump cause
overcurrent
Pump cause high
tempareture
Smoke or oil at
exhaust
Cause
Vacuum oil deteriorated
Insufficient vacuum oil
Pipe leaks air
Filter get stuck
Wrong voltage
Fuse has blown
pump or motor get stuck
Too much oil or the type oil
is wrong
The oil becames viscous in
cold weather
The filter is contanimated
Too much oil or not enough
Insufficient cooling
Too much oil
Filter get stuck
Method
Check or change oil
Add oil
Check or change pipe
Clean or change the filter
Check and connect the right
power
Change the fuse
Try to find the object by rolling
the motor manually
Check,change or reduce the oil
Find other oil suitable for cold
weather
Clean or change the filter
reduce or add oil
Check and clear the cooling fan
Reduct the oil
Clean or change the filter
Form 4. Heat sealing system
Trouble Cause Method
Not seal the bag
Wrinkles atthe bag
Bag is not firmly
sealed
Heating element is broken or
shortcut.
Contactor is fail or broken
The sealing bar get stuck
No enough holding time
The sealing bar get stuck
Solenoid valve problem
Telfon cloth is aged
Material of firm is not suible
Check and change the heating
element.
Check and change the contactor
Check and re-install it
Adjust the holding time
Check and re-install it
See Form 2
Change it
Use other bag

XI. Maintenance
Regular maintenance is required for a long lifespan of the machine, to avoid
problem and to achieve an optimal packaging result. If the machine is used
intensively, please maintain more regularly. If there are doubts about the
maintenance activities or if the machine fails to work correctly always contact
the supplier.
The normal maintenance must be carried out as following .
Weekly
Check thee oil level and replace or fill up oil when the oil is
turbid or the oil level is too low.
Inspect and replace Teflon tape or sealing wire if the seal
quality is no longer sufficient.
Inspect the lid gasket and replace it when the gasket is damaged.
Every
Six Months
Four-yearly
Replace oil, (if pump's running time is more than 120 hours,
do it earlier)
Replace rubber in the silicone holder
Replace the air filter.
Replace springs of vacuum lid.
XII. List of accessories
Items
Handle
Letters and numbers
Heating element
Teflon cloth
Screw driver
Allen key
Hexagonal wrench
Specifications and
model
10 mm of width
50 mm of width
5814
8-10 12-14 17-19
Quantity
4 sets
1 sets
2 rolls
1 roll
1 piece
3 piece
3 piece
Remark
Length varies with models
Length varies with models
Double use
Each size 1 piece
Each size 1 piece