Van Der Stahl MD-850 Series User manual

www.vanderstahl.com
Printed SEP 2018
1st Edition 1.04E
MEDICAL DEVICE POUCH SEALER
MD-850 SERIES
OPERATING INSTRUCTIONS

9.694.004 Vers. 1.04 2
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MD 850 Table of Contents
ENGLISH
Contents Page
1 Table of contents 1
2 Introduction 2
3 Before Starting
Guide to these Operating Instructions 3
Intended Use 3
Set -Up and Function 4
Safety instructions 5
Installation 5
Start –Up 6
4 Basic Functions
Programming Aids 7
Configuration of the device 8
Configuration of the printer 8
Data Input 9
Activation of the printing data 10
Special functions 11
Operation and validation 12
5 Troubleshooting and Maintenance
13
13
15
16
16
17
18
19
Troubleshooting Chart
Customer Service
Warranty
Maintenance Chart
Parts Service
Parts Required for Maintenance and Wear
Replacement parts
Part numbers
Maintenance Information
Replacing ink ribbon 20
Replacing Teflon strip on guide rail 21
Replacing Teflon strip for heating die 22
Replacing pressure roller 23
Setting 24
Adjustment
Service date 25
Standby function 25
6 Technical Data
Circuit and Wiring Diagram 230 V 26
Circuit and Wiring Diagram 115 V / 100 V 26
Specifications 27
Declaration of Conformity 28
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MD 850 Operating Instructions
Introduction
First we would like to thank you for purchasing the MD 850 DC hawomed sealing
machine. These instructions include information on the machine, its function and operation.
!Please read these operating instructions thoroughly before using the machine so that you will
be familiar with the capabilities of the machine and can utilize its features to the optimum.
Always keep these instructions in the vicinity of the machine.
Important note:
This device is a packaging machine for the processing of thermoplastic films and composite films
according to the thermal – bonding or sealing process.
In this respect , please pay attention to the “Intended use” chapter in the operating instructions.
According to the intended use , the CE symbol was affixed on the basis
of the EU Directives named below:
89/336/EEC, 98/37/EC
and 73/23EEC amended by 93/68EEC.
The 93/42EEC Directive is not applicable to bonding and sealing devices.
The limit values stipulated in IEC 60601 – 1 cannot be applied in case of the electrical repetition tests.
The manufacturer will not assume any liability for damage caused by tests according to standards which
are not listed in the declaration of conformity .
2
Note
Since we continuously improve our products we reserve all
rights to modify these operating instructions and the
functions described therein.
We make all possible efforts to keep these instructions free of
errors and complete. If you note any errors or unclear points
please advise us.

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MD 850 Before Starting
Guide to these Operating Instructions
Before Starting
This chapter contains information on the functions of the machine and
instructions for handling and installation.
BE SURE TO READ!
Basic Functions Adjustment and operation of the machine are explained here.
Troubleshooting
and
Maintenance
Instructions for finding causes of malfunctions and eliminating them.
This chapter includes information on the required maintenance, parts
subject to wear and replacement parts.
Technical Data
Shows the interrelationship between various item numbers, the circuit
and diagram plans and machine specifications.
Intended Use
The MD 850 machine is intended for commercial and industrial applications and should be used
only for the intended purpose.
The MD 850 machine is a sealing machine for sealing sterilization packages consisting of paper,
paper laminate foil or Tyvek foil.
!It is not suitable for sealing pure polyethylene foils, soft PVC foils, hard PVC foils,
polyamide foils or polypropylene foils.
The machine capacity depends on the characteristics of the sealing material used.
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MD 850 Before Starting
Set-Up and Function
Sealing and Printing Operation Sequence
1. After inserting the sterilization package switch on transport.
2. The sterilization package is then transported and the area of the sealing seam is heated to the sealing temperature
set on the upper and lower heating dies.
3. The hot seam is pressed together by the sealing roller sealing it.
4. The printing operation is activated and the activated print data is printed onto the sealed package.
5. The finished sterilization package is transported to the discharge side.
6. If more packages to be sealed are not fed in the transport mechanism shuts off after approx. 30 s.
3
Power switch
Power fuse
Power connection
Peel edge adjustment
5 - 30 mm
Input and
function keys
Display
Adjustable for the user manual

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MD 850 Before Starting
General safety instructions
The device must not be installed or operated by persons under
14 years of age.
The device must not be operated unattendedly.
Turn of the device or disconnect the power cord when it is not in use.
Installation
Do not install or operate the machine in explosion hazard areas.
Use only power sockets with protective ground.
Set up the machine only in dry areas.
Heavy dust, vapor, dripping or spraying water have a negative effect
on the machine functions.
Always ensure that the operating power corresponds to the specifications on the
machine rating plate.
Please choose a socket where the line power is stable.
Please do not transport device on
the peel edge setting!
3
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MD 850 Before Starting
Start-Up
Plug power cable into power socket
on machine
Insert plug into wall socket
Switch on machine
with power switch
FUNCTION DISPLAY
Machine switched on
Self-test runs for approx. 30 s
Display for approx. 5 seconds:
V2.8 = Program version
956579 = Machine number
If maintenance deadline is
exceeded
Perform maintenance
Display of
date, time
Actual temperature.
Setemperature
After 5 minutes is the
set temperature reached
Machine is ready for operation
3
Please wait
Control 850 V2.8
956579
17-02-00 14:30 025°C
Nominal
temp 140°C
17-02-00 14:35 140°C
Switch
conection
Power switch
M A I N T E N A N C E
Acknowledge maintenance
message

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MD 850 Basic Functions
Programming Aids
FUNCTION KEYS DISPLAY
INPUT AIDS
Cursor control
Press - cursor right - key once
1x
INPUT AIDS
Changing numbers and
Letters
Press key – position +1 - once 1x
INPUT AIDS
Return to previous menu
point without activating entry
INPUT AIDS
Activate input
INPUT AIDS
Space at selected point
Set piece counter to 0
4
100°C
Cursor flashes at 1st digit
100°C
1st digit is number 1
100°C
Cursor flashes at 2nd digit
200°C
1st digit is number 2
Position +1Position -1
Cursor Cursor
left right

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Input
ENGLISH
MD 850 Basic Functions
Configuration
FUNCTION KEYS DISPLAY
CONTRAST SETTING

DATA INPUT
Selection: Language, symbols,
temperature unit
Language:
German, English, French,
Spanish, Italian, Finnish,
Swedish
Symbols: yes/no
Temperature unit: C / F

Language selection
yes / no
Printer Set-Up
FUNCTION KEYS DISPLAY
PRINTER SET UP
Printing direction
0°
180°
Start printing
0 - 99 mm
Character width
0 – 5
Character interval
0 – 5

Yes / No
0 / 180
Input
Start printing
printer set up
YES
print out
0
distance
00 0-99mm
character width
0 0-5
character distance:
0 0-5
Input
Character width
Input
Character interval
4
pictogramm NO
set language
GB
display - contrast
Contrast 
Contrast 
0 - 99
Celsius / Fahrenheit
temperature unit
C

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MD 850 Basic Functions
Data Input
FUNCTION KEYS DISPLAY
TEMPERATURE
Nominal temperature input
1 150 – 220 °C / 302 - 428 °F
2 120 - 150 °C / 248 - 302 °F
3 80 - 120 °C / 176 - 248 °F

1,2,3
DATA INPUT
Date and time
Input of 6different date
Formats
1 dd-mm-yyyy 2 mm-dd-yyyy
3 yyyy-mm 4mm-yyyy
5 yyyy 6 yyyy-mm-dd
 
1,2,3,4,5,6
DATA INPUT
Expiration date
Enter 3 differnt expiration
dates,
ex works: 1= Date + 1 Month
2= Date + 3 Month
3= Date + 6 Month

1,2,3
DATA INPUT
Charge number
10-digit, alphanumerical
DATA INPUT
Personnel number
20-digit, alphanumerical
DATA INPUT
Piece counter
7-digit, numerical
DATA INPUT
Text
20-digit, alphanumerical
DATA INPUT
CE Information
20-digit, alphanumerical 
4
format date & time
DD-MM-YYYY
DD-MM-YYYY
17-03-2000 1
1234567890
0987654321
piece counter
1234567
text input
HAWO Gerätebau GmbH
CE -info
EN 980
Input
date, time
Input
Charge number
Input
Personnel number
Input
Piece Counter
Input
Text
Input
CE information
DD-MM-YY hh:mm
17-02-2000 08:57
nominal temp.
175°C
1
Input
Temperature
Input
Expiration date

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MD 850 Basic Functions
Data Activation/Deactivation
FUNCTION
The print sequence is
predefined, this means the
individual information like
Sterlization date
Expiry date
Charge number
Personnel number
Piece counter
Text
CE Symbol
get always print in the same
sequence
Print: Sterlization date, Expiry date, Personnel number
Print: Sterlization date, Personnel number
FUNCTION KEYS DISPLAY
PRINT
Sterilization date
Print Do not print
PRINT
Expiration date
Selection of 3 different
expiration dates
Print Do not print

1,2,3
PRINT
Charge number
Print Do not print
PRINT
Personnel number
Print Do not print
PRINT
Piece counter
Print Do not print
PRINT
Text
Print Do not print
PRINT
CE character
Print Do not print
4
17-02-2000
17-03-2000 1
1234567890
0987654321
piece counter
12345
text input
HAWO Gerätebau GmbH
CE -info
CE
character
17-03-2000
17-02-2000
Miller
17-02-2000
Miller

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MD 850 Basic Functions
Special functions
FUNCTION KEYS DISPLAY
PRINT
Printer OFF/ON
DISPLAYS
Absolute part counter

DISPLAYS
Operating time counter

absolute p. counter
1234567
operating time
000053 h 25 min
17-02-2000 14:30 180°C
printer
off
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MD 850 Basic Functions
Operation
Sealing Operation
Adjust peeling edge width
After loosening the arrest the peeling edge can be adjusted infinitely between 5 mm and 30 mm
by moving the plate.
Insert sterilization package
The drive is switched on automatically.
Removed sealed sterilization package and allow to cool briefly.
Check strength by tearing open seal.
If unsealed points are present increase the sealing temperature. If the paper discolors or the
foil peels off the temperature is too high.
Determine suitable sealing temperature with sealing tests.
Validation – „Seal Check“
Checking of the sealing parameters: temperature, pressing –on pressure and sealing time by means of “SEAL
CHECK”
This test should be performed before the daily working process and should be documented by
filing the print out.
Additional, visual inspection ofthe sealing seam with Seal Check
Prior to the test, the device must be ready for operation and the temperature must have been reached.
Device is ready for operation
Specified nominal temperature
Has been reached Activate SEAL CHECK
Introduce sterilisation
packaging, width: 200 mmm
21-12-1998 10:33 T: 180°C F: 100 N t: 2.8 s Miller
4
Peel test
No
Date Time Temperature
Pressing-on pressure
Sealing time
Name
SEAL CHECK Seal check

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MD 850 Troubleshooting and Maintenance
Troubleshooting Chart
Malfunction Possible cause Remedy
Machine cannot be switched
on
No data on display
Power connection
Power cable not plugged in
Power cable defective
Power fuse
Control board
Display board
Check power connection, if
Necessary connect to different
socket.
Replace power cable.
Replace power fuse
!If fuse blows again always have
machine checked.
Replace control board
Replace display board
Machine does not heat up
Nominal temperature too low
Temperature limitation active
Temperature sensor
Heating cartridge
Control board
Increase nominal temperature
Reset temperature limiter
by pressing in pin
!If temperature limiter trips again
always have machine checked
Replace temperature sensor
Check heating cartridges, replace if
necessary
Replace control board
No transport Motor sensor
Front flap not closed
Front flap - sensor
Transport belt Damaged
No transport
Motor
Control board
Replace light barrier
Close front flap
Replace front flap sensor
Replace transport belt
Check belt tension
Replace motor
Replace control board
Your HAWO Service department is available
Monday - Thursday from 7.30 -16.30 + Friday 7.30 - 15.30,
under the telephone number xx49 (0)6261 9770-00 or (0)1726289126
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www.vanderstahl.com

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MD 850 Troubleshooting and Maintenance
Troubleshooting Chart
Malfunction Possible cause Remedy
Material feed not uniform or
loud running noise
Transport belt guide
Transport belt
Damaged
No transport
Motor
Replace Teflon belt on guide die
Replace transport belt
Check belt tension
Replace motor
Seal does not hold
Temperature
too low
Pressure
too low
Sealing die
Distance between the sealing dies
to great
Increase temperature
Readjust pressure of sealing roller or
replace sealing roller
Set distance between the
sealing dies to 0.5 mm
Sealing seam distorted Pressure
too high
Loosen upper guide die and readjust
downward
Paper side of
package discolored
or side fold shrunk
Temperature
too high Reduce temperature
No imprint or
imprint incomplete
Programming
Start of print not correctly adjusted
Ink ribbon
Printer head
Control board
Reprogram start of print
Ink ribbon not correctly installed
Replace ink ribbon
Replace print head
Replace control board
Imprint too weak Ink ribbon
Print head
Paper hold-down
Replace ink ribbon.
Readjust print head.
Replace pressure spring for paper
hold-down
Keyboard does not work Keyboard
Display board
Control board
Check keyboard connector for good
contact.
Replace keyboard
Replace display board.
Replace control board
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MD 850 Troubleshooting and Maintenance
Warranty
We assume a 24-month factory warranty for material and labor on all of our equipment corresponding to our general
warranty terms for any proven defects.
The equipment or parts thereof will be repaired or replaced as required at no cost.
Please advise of warranty claims within 8 days.
The warranty does not apply to transport damage to improperly packed equipment shipped to the supplier or
manufacturer asa result ofguarantee claims.
When processing guarantee claims we reserve all rights to make technical modifications in the interest of technical
progress and improvement of our equipment.
Recognition of a warranty claim does not increase the total warranty period.
Warranty claims donot entitle the claimant towithhold payments infull orinpart.
We assume no liability for damage resulting from the following causes:
Unsuitable or improper use, incorrect installation or start-up, erroneous operation, incorrect or careless operation,
natural wear, use of unsuitable operating agents, chemical, electro-chemical or electrical effects.
Moreover, any modifications or repair work accomplished improperly by the operator of the equipment or third
parties without previous approval by Van der stahl Scientific are excluded from any type of warranty. The same
applies if genuine Van der stahl Scientific replacement parts are not used.
Parts replaced shall become the properly of Van der stahl Scientific.
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MD 850 Troubleshooting and Maintenance
Maintenance Chart
As all technical equipment your equipment is also subject to technical wear.
In order to ensure that your machine is always ready for use it should be serviced at least
once annually by a trained technician.
Maintenance
chart
Ink ribbon
Teflon strip
for guide
die
Teflon strip
for sealing
die
Pressure
roller
Toothed
belt
Sealing die
interval
Sealing
temperature
between
sealing die
At least every
3 months
Depending on
use, at least
once annualy
Parts Service
Simply order parts by fax:
Please copy the following pages according to the parts required.
Page 17: Parts required for maintenance and wear
Page 18: Replacement parts
Enter machine number.
Enter machine model
Enter name, address, fax number and order number.
Mark items required
Enter quantity required.
Sign order.
Fax order.
5
Check
Replace
Adjust
Measure
No.: 123456
Type: MD 850

GB 18 9.694.004 V1.04
To:
hawo GmbH
From:
Fax [phone]
Order Nr ______________ Date: ________________
Machine Model ______________ Machine number _______________
Designation Part No qty
Ink ribbon 6.813.104
Teflon strip for sealing die 6.105.285
Teflon strib for guide rail 500 mm 6.105.139
Pressure roller plastic 2.230.008
Toothhead belt drive 375 mm 6.271.011
Toothhead belt, material transport 480 mm 6.271.008
Heating cartridge 6.536.032
Upper sealing die complete 1.616.028
Lower sealing die complete 1.616.029





Signature __________

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To:
hawo GmbH
From:
Fax [phone]
Order No ______________ Date: ______________
Machine model ______________ machine number _______________
Designation Part No qty
Print head 1.653.002
Control board 1.410.022
Control board 100V 1.410.026
Display board 1.410.017
DMS Modul 1.410.018
Motordriver 1.410.020
Light barrier 1.561.003
Gear motor 1.212.011
Motor ink ribbon 1.212.012
Temperature limit switch 6.564.018
Thermocouple 6.564.023
Service Dongle 1.561.002


Signature ____________________

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MD 850 Troubleshooting and Maintenance
Part numbers
Heating die
lower guide rail
upper guide rail
6.564.023
6.564.018
Teflon ribbon
6.105.285
5
6.181.011
6.105.139
2.301.027
6.105.035
2.301.027
2.301.027