OPERATING INSTRUCTIONS
UM 200 - 800
SM 200 - 400
ULM/SLM 400 - 800
OPERATING INSTRUCTIONS
Drying ovens
UM 200 - 800
ULM 400 – 800
Sterilisers
SM 200 - 400
SLM 400 – 800
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UM 200-800/SM 200-400, ULM/SLM 400-800
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TABLE OF CONTENTS
1 Congratulations on your choice of a MEMMERT Oven!.........................................2
2 Technical data summary...........................................................................................3
2.1 Electrical supply...................................................................................................................................3
2.2 Installation options (special equipment) ...........................................................................................5
2.3 Wall mounting (special equipment)...................................................................................................5
2.4 Stacking device (special equipment) .................................................................................................6
3 Putting into operation ...............................................................................................6
4 Main switch module with fresh air control..............................................................7
5 Working controller module....................................................................................... 8
6 Operation with timer (special equipment with UM/ULM oven) ..............................8
7 Safety devices ...........................................................................................................9
7.1 Adjustable overheat controller (TWW), class 3.1 according to DIN 12880 ....................................9
7.2 Adjustable temperature limiter (TWB), class 2 according to DIN 12880 ......................................10
8 Steriliser................................................................................................................... 11
8.1 Application ..........................................................................................................................................11
8.2 Directives for sterilisation in MEMMERT- hot-air sterilisers..........................................................11
8.3 Notes on the work with sterilising cassettes: .................................................................................12
9 Loading ....................................................................................................................13
10 Maintenance.............................................................................................................13
10.1 Readjusting the door .........................................................................................................................14
11 Cleaning ...................................................................................................................15
12 Our Address.............................................................................................................15
13 Index ………………………………………………………………………………………18
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UM 200-800/SM 200-400, ULM/SLM 400-800
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The text of these Operating Instructions has been translated from the German. If
any part of the text is doubtful or the interpretation is unclear, and also in case of
errors, the German original is to be considered as valid.
1 Congratulations on your choice of a MEMMERT Oven!
Manufactured in Germany using the latest production techniques and finest materials
available, you now possess a technically superior and fully developed product. Your oven
has already been under extensive testing in our factory.
For correct operation of the equipment it is essential to observe the operating and
maintenance instructions below. This will ensure that your equipment will give many years´
satisfactory service.
Explanation of symbols:
These symbols mark important indications in the operating instructions
The corresponding markings on the oven mean:
Note the Operating Instructions!
Attention, outside case temperature may be hot!
General safety instructions.
The physical and chemical properties of your load (e.g. inflammation
temp. etc.) have strictly to be observed, as otherwise considerable
damages (load, oven, surroundings of apparatus) can appear.
Please note that the Memmert ovens described here are not
explosion-proof (they do not conform to Occupational Association
Regulation VBG 24). They are therefore unsuitable for drying,
evaporating or burning-in of enamels or similar substances whose
solvent may form an inflammable mixture together with air. There
must be no possibility for inflammable or explosive gas/air mixtures
to form either inside the oven or in the immediate neighbourhood of
the equipment.
Excessive dust or aggressive vapors in the interior of the oven may
result in sediments within the oven and cause short circuits or
damage to the electronic parts. Therefore dust and aggressive vapors
should be kept from the oven.
Transport:
Always use gloves !
If the ovens have to be carried, at least 2 persons are required for this
mode of transport depending on size (Model 200 to 500) or at least 4
persons (Model 600 and 700)
Attention!
Take special care when working at high temperature!
Outside case temperature may be hot!
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2 Technical data summary
MEMMERT appliances are electrically heated and thermostatically controlled. Series
UM/SM have natural air circulation whilst series ULM/SLM have fan assisted circulation.
A PT100 DIN B, DIN 43 760 measures the temperature in the working chamber.
Ambient
conditions
Ambient temperature 5°C - 40°C, rH max. 80%.
Overvoltage Category: ΙΙ
Contamination degree: 2 according to IEC 664
Setting temperature range
30°C to nominal temperature
(See rating plate)
Working temperature range
From 5°C above ambient to nominal temperature = maximum
temperature (see rating plate)
When the fan of the models ULM / SLM is switched on, the working
temperature can be set from 10°C degrees above ambient up to the
nominal temperature = maximum temperature (according to rating plate).
Overheat
safety device
Serial adjustable overheat control in compliance with DIN 12880 Class 3.1;
Class 2 protection (adjustable temperature limiter) available on request.
Class Aim of
protection
Scope of
protection
Safety
device
Safety
measures
2
No risk liable to
originate from the
oven in the event
of a fault
TWB
(adjustable temperaure limiter)
automatically shuts off the
oven if the user selected
temperature limit is exceeded.
3.1
Protection of
the oven, the
environment
and the
contents of the
oven
The contents of
the oven are
protected against
overheating
TWW
(adjustable overheat controller)
takes over control of oven if
temperature is exceeded.
Special safety
measures required
depending on the
purpose for which
the oven is used
2.1 Electrical supply
50 or 60 Hz. Adequate insulated supply which incorporates earth conductor according to
EN 61010, Protection IP 20, no humidity protection according to DIN 40 050. Interference
suppression Grade N according to VDE 0875, limiting values of the class B, part one.
A fuse 250V/15A quick is used for oven protection (in ovens with 400V 3N~ power supply
3 fuses).
Before current-connection please compare label on the oven and instructions of
your local current supplier.
(e.g. in Germany, DIN VDE 0100 with FI - safety device).
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UM 200-800/SM 200-400, ULM/SLM 400-800
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model volume current consum. power
voltage ±10%
weight
UM/SM 200 32 l 4,78 A 1100 W 230 V~ 28 kg
UM/SM 300 39 l 5,22 A 1200 W 230 V~ 30 kg
UM/SM/ULM/SLM 400 53 l 6,09A 1400 W 230 V~ 35 kg
UM/ULM/SLM 500 108 l 8,70 A 2000 W 230 V~ 50 kg
UM/ULM/SLM 600 256 l 10,43 A 2400 W 230 V~ 87 kg
UM/ULM/SLM 700 416 l 5,80 A 4000 W 400 V 3N~ 121 kg
UM/ULM/SLM 800 749 l 6,96 A 4800 W 400 V 3N~ 164 kg
This equipment is intended for operation on a supply system with a system impedance
Z
max
at the transfer point (building connection) which does not exceed 0.12 Ohm. The user
has to ensure that the equipment is being operated on a supply system which meets this
requirement. If necessary, details of the system impedance can be obtained from the local
power supply authority.
Quality of material
Memmert is using stainless steel (Spec. 1.4301) for the external casing as well as
for the interior, an outstanding material because of its high stability, optimum
hygienic features and corrosion resistance against many (not all!) chemical
combinations (Attention e.g. at chlorine combinations!).
WARNING!
Before removing top cover – pull out plug !
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2.2 Installation options (special equipment)
The oven can be set up on the floor or on a table (bench),
model 500 - 700 on a subframe. Ensure at least 150 mm
clearance between back of oven and wall. The distance
between ceiling and oven should not be less than 200 mm
and the minimum wall spacing to the sides is 80 mm.
Generally, a sufficient circulation of air around the oven is
required.
A
fter the oven has been set up horizontally the door can be
adjusted if required (see chapter - MAINTENANCE).
The model 800 is movable. The front castors are lockable by means of a fixation. In order
to assure stability, the front castors must always be adjusted to the front side of the
oven for locking.
2.3 Wall mounting (special equipment)
Up to model 700 for all ovens metal mounting brackets are
available. A mounting bracket is delivered with an
incombustible plate. The dimensions of the fixing screws
are to be choosen depending on the total weight (equipment
and loading) of the charge and the quality of the wall.
Pitches of holes for wall fixation (wall bracket)
model A B C
mm inch mm inch mm inch
200 489 19,25 770 30,32
300 569 22,4 770 30.32
400 489 19,25 850 33.47
500 649 25,55 930 36,61
600 889 35,00 1090 42,91 540 21,26
700 1129 44,45 1250 49,21 410 16,14
model 600
model 700
Do not place the steriliser on a readily inflammable support!
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