VWR avantor MCC 2000 User manual

Instruction manual
VWR®MCC 2000
Colony counter
European Catalogue Numbers: 710-2246
Version 1.0 Issue 09/2022

Instruction Manual MCC 2000
2 vwr.com I Instruction manual VWR®MCC 2000
Legal address of Manufacturer
Europe
VWR International bv
Researchpark Haasrode 2020
Geldenaaksebaan 464 B-3001 Leuven
[phone]
be.vwr.com
UK Importer
VWR International Ltd
Hunter Boulevard, Magna Park
Lutterworth, Leicestershire, LE17 4XN
uk.vwr.com
Country of Origin
POLAND

Instruction Manual MCC 2000
3 vwr.com I Instruction manual VWR®MCC 2000
Contents
1. INTENDED USE AND IMPORTANT INFORMATION FOR THE USER .........................4
2. PACKAGE CONTENTS .................................................................................................5
3. BEFORE THE FIRST USE.............................................................................................5
4. OVERVIEW ....................................................................................................................6
5. UNIT OPERATION.........................................................................................................8
5.1. Menu .......................................................................................................................8
5.2. Working without using the average value function ...................................................8
5.3. Working with using the average value function ........................................................9
6. CLEANING AND MAINTENANCE OF THE UNIT..........................................................9
7. TROUBLESHOOTING .................................................................................................10
7.1. Possible defects.....................................................................................................10
8. PRODUCT IDENTIFICATION LABEL..........................................................................12
9. TECHNICAL DETAILS.................................................................................................13
10. TECHNICAL SERVICE ................................................................................................13
11. WARRANTY CONDITIONS..........................................................................................13
12. COMPLIANCE WITH LOCAL LAWS AND REGULATIONS........................................14
13. EQUIPMENT DISPOSAL .............................................................................................14

Instruction Manual MCC 2000
4 vwr.com I Instruction manual VWR®MCC 2000
1. INTENDED USE AND IMPORTANT INFORMATION FOR THE USER
The colony counter is an easy-to-use instrument for precise working with Petri dishes of various dimen-
sions. The surface is sensitive to touch, therefore every single mark with the pen is additionally indicated
with sound and number. The controller is equipped with acoustic counting control and automatic compen-
sation of the weight of different Petri dishes. Even illumination of the counting field is guaranteed by a ring
light. The magnifying glass ensures a clear view. Its position can be easily adjusted. A clear 3-digit LED
display enables it to work in different light conditions.
To guarantee your security and the longest efficiency of the unit, please comply with the following rules:
1.
The unit cannot be installed:
- outside,
- in damp places or places which can be easily flooded,
- near flammable or volatile substances,
- near acids or in corrosive environments.
2.
It is forbidden to:
- touch live parts of the unit
- operate the unit with wet hands,
- climb or put any objects on the unit,
3.
You should:
- use only mains with earth to avoid electric shocks,
- unplug the power cable holding the protective cover and not the cable itself,
- disconnect the unit from the mains before undertaking any repairs or maintenance works,
- protect the power cable and the plug from any damage and do not use the plug if it is improp-
erly plugged in or if the cable is laid incorrectly,
- disconnect the power plug before moving the unit,
- disconnect the power plug if you are not going to use the unit for a longer period of time,
- disconnect the unit and protect it from reconnecting if it has any visual faults.

Instruction Manual MCC 2000
5 vwr.com I Instruction manual VWR®MCC 2000
2. PACKAGE CONTENTS
MCC 2000 is delivered with the following equipment:
•colony counter (base)
•magnifying glass (2,5 times magnification, 100 mm)
•glass plate
•tool for removing glass plate
•standard marker
•background plate (double sided: white and black background)
•Wolfhuegel grid (fields area: 1 cm2and 1/9 cm2)
•adapters for various sizes of Petri dishes (3 pcs.)
•power cable
•instruction manual
3. BEFORE THE FIRST USE
By default, the unit is sent in a cardboard box. It is necessary to transport it in the upright position and pre-
vent it from any unintended movements.
Once you receive the unit, please check its technical condition and all accessories.
Any claims regarding latent defects should be reported to the manufacturer, while any
damage during transport or incomplete accessories needs to be passed to the entities
who are responsible for the transport and unloading.
The place of installation of the unit should meet the following conditions:
•Ambient temperature 0°C...+40°C
•Low relative humidity of the ambient air to 70%
•The unit has not been designed to work in highly dusty environments
•The unit should be put on a hard and stable substrate
•The unit should be placed at least 50mm away from the wall
•This unit may not be exposed to direct sunlight
•The unit should be kept away from any heat sources

Instruction Manual MCC 2000
6 vwr.com I Instruction manual VWR®MCC 2000
Before You start working with the counter
1. Remove the foil from both sides Wolfhuegel grid.
2. Put the glass plate into the counting field.
3. Put the background plate into the slot in the right lower part of the housing.
4. Put the Wolfhuegel grid on the counting sensitive field (if needed).
5. Install magnifying glass to the mounting clam in the rear part of the device using hex key.
4. OVERVIEW
FRONT VIEW
Clamp fastening for
magnifying glass
LED
Display
Function
button
Marker gap
Glass plate
Black/white
background plate
Wolffhügel grid
Marker
Main switch
Sto
o
o
oAdapting element 76
Adapting element 56
Adapting element 88

Instruction Manual MCC 2000
7 vwr.com I Instruction manual VWR®MCC 2000
REAR VIEW
element
function
power switch
turns the counter on/off
display
shows the number of counted colonies
sensitivity regulation
pressure force on the counting plate can be changed using a sensitivity regula-
tion screw, placed on the rear part of the device. MCC has been factory set to
the middle-pressure force. More experienced users can change it to the more
sensitive setting by turning the sensitivity regulation screw counterclockwise.
zeroing button
when pressed, makes the display goes to zero value
counting plate
when pressed makes the display value grows by one
background plate
double –sided plate, the color of the background depends on the type of bacte-
ria

Instruction Manual MCC 2000
8 vwr.com I Instruction manual VWR®MCC 2000
5. UNIT OPERATION
5.1. Menu
The dark signs in the above picture symbolize pulsing.
To switch between the windows, quickly press
1. Counting window –number of counts
2. Series window –when pressed and held down for about 2 secs. the count number is saved as an-
other series, on the display the series number is indicated
3. Average value window –it shows the number of saved series out of which the average value is
calculated
4. Reset window –when pressed and held down the button for about 2 secs. all previously saved
series are reset
5.2. Working without using the average value function
1. Turn on the counter with the power switch (the ring lamp will light up).
2. Put a Petri dish on the glass plate. If necessary use the appropriate adapter for different dish sizes
to place it in the center of the counting plate
3. Press the function button for about 2 seconds to zero the display, zeroing will be confirmed with
a long audible signal.
4. To count the colonies, mark them with a marker. The glass plate is sensitive to pressure, so each
mark will be counted and acknowledged with an audible sign.
5. The LED display shows the current number of colonies.
6. To count the colonies from another Petri dish follow points 2-4 once again.
In case of power failure, the value is reset. Please redo the counting.
0 15
0
2
sec
.
Sto
Ar
3
rEs
n
4
175
rEs
(
1
)
(
2
)
(
3
)
(
4
)
2
sec
.
2
sec
.
2
sec
.

Instruction Manual MCC 2000
9 vwr.com I Instruction manual VWR®MCC 2000
7. After finishing work, turn the device off with the power switch.
5.3. Working with using the average value function
The final reading for every single analysis (single Petri dish) can be stored in memory. Then those
stored values can be used for calculating an average value of counted colonies.
1. Take the first Petri dish and count the colonies. To store the reading in memory press the function
button lightly. Option Sto (store) will flash on the display. To confirm hold the function button
for 2 seconds and storage in the memory will be confirmed with an audible signal and n 1 will
flash on the display.
2. Take another count for further dishes and their values can also be stored in the memory. Up to 9
results of counting may be stored in this way and then an average value can be calculated.
3. To calculate an average of saved values, press the function button lightly twice (until Ar is
flashing on the display) and then hold the button again for 2 seconds. The calculated average
value will appear on the display. This information Ar4 indicates that to calculate the average val-
ue, the information of 4 series is taken into account.
Note! New counts can be saved (up to 9 maximum) and a new average can be calculated after
each count or after all values are stored as required.
4. To clear the memory press the function button 3 times lightly (until rES is flashing on the dis-
play). In order to confirm resetting press the function button for 2 seconds. The memory is then
cleared and an audible signal will be heard. After finishing work, turn the device off with the power
switch.
6. CLEANING AND MAINTENANCE OF THE UNIT
MCC 2000 colony counter is almost maintenance-free device and shall be only cleaned with a soft cloth. To
remove the glass plate use a special tool for removing it. The unit can be cleaned by wiping it with ethanol.
In case of power failure, the number of series is reset. Please redo the counting.
To reset the current series, please press and hold down the button for 2 seconds.

Instruction Manual MCC 2000
10 vwr.com I Instruction manual VWR®MCC 2000
Sterilization
Ethylic alcohol shall be used to sterilize MCC colony counter.
7. TROUBLESHOOTING
Before you contact VWR Service Department:
1.
Make sure that the operation complies with the instruction manual of the device.
2.
Restart the device to make sure that the unit is not functioning properly. If it still does not work,
disconnect the unit again from the mains and repeat the operation after one hour.
7.1. Possible defects
Malfunction
Cause
What to do
The ring lamp and display don’t work
The main fuse damaged
Check and replace the fuse
(20x5, fuse value of 1.0A /
230V)
The ring lamp does not work
The ring lamp damaged
Contact authorised service, to
change ring lamp.
The display does not work
Electronics failure
Contact authorised service
The ring lamp and display work
properly, but counting is not possible
Counting elements damaged
Contact authorised service
Pressure on the counting plate is not
uniform during counting
Counting sensor failure
Contact authorised service
Double counting
Sensitivity is too high
Adjust sensitivity using screw-
driver