Memmert CTC 256 User manual

OPERATING MANUAL
Climatic test chamber CTC 256
Temperature test chamber TTC 256

Manufacturer and customer service
MEMMERT GmbH + Co. KG
Postfach 17 20
D-91107 Schwabach
Äußere Rittersbacherstr. 38
D-91126 Schwabach
Germany
Fon: [phone] / 925-0
Fax: [phone] / 14585
E-Mail: [email protected]
Internet: www.memmert.com
Customer service:
Fon: [phone]/925-128
and: [phone]/925-126
E-Mail: [email protected]
For service enquiries, please always specify the appliance number on the nameplate (see page
16).
© 201Memmert GmbH + Co. KG
Edition /201
Subject to modifications

3
About this manual
About this manual
Purpose and target group
This manual describes the setup, function, transport, operation and maintenance of tempera-
ture test chambers of the type TTC 256 and climatic test chambers of the type CTC 256. It is
intended for use by the trained staff of the operator who are in charge of operating and / or
maintaining the test chamber.
If you as the operator are asked to work on the test chamber, you should read this manual
carefully before starting work on the unit. Familiarise yourself with the safety regulations. Only
perform the work that is described in this manual.
If there is something you don‘t understand, or certain information is missing, ask your supe-
rior or get in touch with the manufacturer. Do not do anything without authorisation.
The descriptions in this manual concerning the humidity/climatic processes refer to the
CTC climatic test chambers. TTC temperature test chambers have no humidity controller,
so that the corresponding sections of this manual are not relevant for these device types.
Other documents to observe:
►for service and repair work (see page 64): the separate service manual
►for controlling the test chamber with the Memmert-PC software “Celsius“ (see page 43)
the separate manual “Celsius”
►Calibration documents; which can be found in the document compartment in the water
tank drawer (see page 10)
Storage and Forwarding
This instruction manual belongs with the test chamber and should always be stored so that
those persons who work on the test chamber have access to it. It is the responsibility of the
operator to ensure that persons who are working on or who will work on the test chamber
are informed as to the whereabouts of this instruction manual. We recommend that it is
always stored in a protected location close to the test chamber.
Make sure that the instruction manual is not damaged by heat or damp.
If the test chamber is sold on or transported and then set up again at a different location, this
instruction manual must also go with it.

4
Content
Content
1. Safety regulations 6
1.1 Terms and symbols used .....................................................................................................6
1.1.1 Terms used..................................................................................................................... 6
1.1.2 Symbols used................................................................................................................. 6
1.2 Product safety and dangers ................................................................................................ 7
1.3 Safety Labelling ................................................................................................................... 7
1.4 Requirements of the operating personnel.......................................................................... 8
1.5 Responsibility of the owner................................................................................................. 8
1.6 Changes and conversions....................................................................................................8
1.7 Behaviour in case of malfunctions and irregularities.......................................................... 8
1.8 What to do in case of accidents.......................................................................................... 9
1.9 Switching off test chamber in an emergency..................................................................... 9
2. Design and description 10
2.1 Design................................................................................................................................ 10
2.2 Description.........................................................................................................................11
2.2.1 Temperature operation................................................................................................11
2.2.2 Humidity operation (only CTC climatic test chamber)................................................ 11
2.3 Working range...................................................................................................................12
2.4 Basic equipment................................................................................................................13
2.5 Material..............................................................................................................................14
2.6 Intended Use .....................................................................................................................14
2.7 EC Declaration of Conformity............................................................................................15
2.8 Designation (nameplate)................................................................................................... 16
2.9 Technical data.................................................................................................................... 17
2.10 Environmental conditions ................................................................................................. 18
2.11 Connections.......................................................................................................................18
2.12 Standard accessories .........................................................................................................18
3. Delivery, Transport and Setting Up 19
3.1 Safety Regulations.............................................................................................................19
3.2 Delivery .............................................................................................................................. 19
3.2.1 Unpacking ...................................................................................................................19
3.2.2 Checking for completeness and transport damage....................................................19
3.2.3 Disposing of packaging material.................................................................................19
3.3 Storage after delivery ........................................................................................................19
3.4 Transport............................................................................................................................ 20
3.5 Installation.........................................................................................................................20
4. Putting into Operation 21
4.1 Checking the door and adjusting if necessary..................................................................21
4.2 Checking the temperature sensors ...................................................................................21
4.3 Install and connect laptop (optional)................................................................................21
4.4 Filling the freshwater tanks...............................................................................................22
4.5 Connecting ........................................................................................................................23
5. Operation and control 24
5.1 Operating staff ..................................................................................................................24
5.2 General information on operation....................................................................................24
5.3 Before starting...................................................................................................................24
5.4 Opening and closing the door ..........................................................................................25
5.4.1 Opening and closing the door with high and low temperatures...............................25
5.5 Loading the test chamber .................................................................................................26

5
Content
5.6 Basic operating information.............................................................................................. 27
5.6.1 Switching appliance on and off..................................................................................27
5.6.2 Operating panel/ controller.........................................................................................28
5.6.3 Basic operation............................................................................................................ 29
5.6.4 Setting parameters......................................................................................................29
5.7 Operating modes...............................................................................................................29
5.8 Operating mode - settings ................................................................................................ 30
5.8.1 Normal mode ..............................................................................................................30
5.8.2 Example setting Normal mode....................................................................................31
5.8.3 Week time switch ........................................................................................................ 33
5.8.4 Example of settings Week time switch .......................................................................34
5.8.5 Programming mode ...................................................................................................35
5.8.6 Close commands for ramp segments .........................................................................37
5.8.7 Example setting programming mode......................................................................... 39
5.8.8 Operation with PC/laptop (optional)........................................................................... 43
5.9 Ending operation...............................................................................................................43
6. Malfunctions and error messages 44
6.1 Error in the temperature monitoring / humidity system ..................................................44
6.2 System/ appliance errors ...................................................................................................44
6.3 Power failure...................................................................................................................... 45
7. Advanced functions 46
7.1 Printer ................................................................................................................................46
7.2 Basic appliance settings (Setup)........................................................................................46
7.3 Temperature monitoring and safety equipment...............................................................48
7.3.1 Electronic temperature monitoring (TWW) ................................................................ 48
7.3.2 Automatic temperature monitor (ASF).......................................................................49
7.3.3 Warning messages ...................................................................................................... 51
7.3.4 Safety and monitoring equipment for the cooling unit .............................................51
7.4 Calibration .........................................................................................................................51
7.4.1 Temperature calibration ..............................................................................................51
7.4.2 Humidity calibration (only for CTC 256)......................................................................53
7.5 Automatic defrosting system............................................................................................54
7.6 Communication interfaces ................................................................................................ 55
7.6.1 USB interface .............................................................................................................55
7.6.2 Communication interfaces RS232/RS485 (optional)................................................... 55
7.6.3 Connection of test chambers to a network with Ethernet interface .........................56
7.6.4 Log memory ...............................................................................................................57
7.6.5 MEMoryCard XL .......................................................................................................... 58
7.6.6 User ID card (optionally available as an accessory).....................................................60
8. Maintenance and Servicing 61
8.1 Basic cleaning ...................................................................................................................61
8.2 Intensive cleaning..............................................................................................................61
8.3 Regular maintenance ........................................................................................................62
8.4 Adjust door........................................................................................................................63
8.5 Removing / cleaning the air filter of the cooling unit .......................................................63
8.6 Replacing the interior lamps ............................................................................................64
8.7 Repairs and Service............................................................................................................64
9. Storage and disposal 65
9.1 Storage .............................................................................................................................65
9.2 Disposal .............................................................................................................................65
Index 66

6
Safety regulations
1. Safety regulations
1.1 Terms and symbols used
In this manual, certain common terms and symbols are used to warn you of dangers or to
give you hints that are important in avoiding injury or damage. Observe and follow these
hints and regulations to avoid accidents and damage. These terms and symbols are explained
below.
1.1.1 Terms used
„Warning“ is used whenever you or somebody else could be injured if you do not
observe the accompanying safety regulation.
„Caution“ is used for information that is important for avoiding damage.
1.1.2 Symbols used
Prohibition sign (forbidding an action)
Do not tilt
appliance Do not lift appliance Do not stack appliance
Warning symbols (warning of a danger)
Danger of
electric shock Explosive atmosphere Cold/danger of frostbite
Heat/hot surface/
danger of
burning
Danger of hot
vapours/scalding Dangerous gases/vapours
Regulation signs (stipulate an action)
Disconnect the
mains plug Wear gloves Wear safety shoes
Observe information in separate manual
Other symbols
Information on
first aid Important or useful additional information

7
Safety regulations
1.2 Product safety and dangers
Temperature test chambers of type TTC and climatic test chambers of type CTC are technically
advanced, manufactured using high-quality materials and are tested for many hours in the
factory. The test chambers are state-of-the-art technology and comply with recognised techni-
cal safety regulations. However, there are still dangers involved, even when the appliance is
used as intended. These dangers are described below.
Warning!
When opening the chamber door, hot steam may escape and scald
you. Remain behind the door when you open it and let out the
steam, or allow the test chamber to cool down before opening the
door.
Warning!
Depending on operation, the surfaces in the chamber interior, the
viewing window, the cable feed-through and the chamber load may
be very hot or very cold. You could suffer from burns or frostbite if
you touch these surfaces. Allow the chamber interior to first adjust
to room temperature after opening the door, or use heat-resistant
protective gloves.
Warning!
After removing covers, voltage-carrying parts may be exposed. You
may receive an electric shock if you touch these parts. Disconnect
the mains plug before removing any covers.
Any work inside the unit may only be performed by qualified electri-
cians.
Warning!
When loading the chamber with an unsuitable load, toxic or explo-
sive vapours or gases may be produced. This could cause the cham-
ber to explode, and people could be badly injured or poisoned. The
chamber may only be loaded with materials/test objects which do
not form any toxic or explosive vapours when heated up (see also
chapter 2.6 Intended Use on page 14).
1.3 Safety Labelling
The test chamber is provided with warning
stickers on the door to warn of dangerous
temperatures inside the chamber interior
(Fig. 1). These stickers must not be removed
and must always be well visible. If they
become unrecognisable or if they peel off,
they must be replaced. You can order the
stickers from Memmert customer service. Fig. 1
Warning stickers

8
Safety regulations
1.4 Requirements of the operating personnel
The test chamber may only be operated and maintained by persons who are of legal age, and
who have received instructions for the test chamber. Personnel who are to be instructed or
who are undergoing general training may only work with the test chamber under the continu-
ous supervision of an experienced person.
The test chamber may only be transported by persons (with fork-lift trucks, manual pallet
jacks), who are trained for this work and who know the corresponding safety regulations.
Repairs may only be performed by qualified electricians. The regulations in the separate service
manual must be observed.
1.5 Responsibility of the owner
The owner of the test chamber
►is responsible for the flawless condition of the test chamber and for the test chamber be-
ing operated in accordance with its intended use (see page 14);
►is responsible for ensuring that persons who are to operate or service the test chamber
are qualified to do this, have received instructions about the test chamber and are familiar
with this operating manual;
►is responsible for ensuring that the safety label on the test chamber (see Chapter 1.3 ) is
visible at all times;
►must know about the applicable regulations, requirements and work protection regula-
tions, and train staff accordingly;
►is responsible for ensuring that unauthorised persons have no access to the test chamber;
►is responsible for ensuring that the maintenance plan is adhered to and that maintenance
work is properly carried out (see page 61 );
►ensures, for example through corresponding instructions and inspections, that the test
chamber and its surroundings are kept clean and tidy;
►is responsible for ensuring that personal protective clothing is worn by operating person-
nel, e.g. work clothes, safety shoes, and protective gloves.
1.6 Changes and conversions
No independent conversions or alterations may be made to the test chamber. No parts may
be added or inserted which have not been approved by the manufacturer.
Independent conversions or alterations result in the EC declaration of conformity (see page
15) losing its validity, and the test chamber may no longer be operated.
The manufacturer is not liable for any damage, danger or injuries that result from independ-
ent conversions or alterations, or from non-observation of the regulations in this manual.
1.7 Behaviour in case of malfunctions and irregularities
The test chamber may only be used when in a flawless condition. If you as the operator notice
irregularities, malfunctions or damage, immediately put the test chamber out of service (see
Chapter 1.9) and inform your superior.
You can find information on eliminating malfunctions from page 44.

9
Safety regulations
1.8 What to do in case of accidents
1. Keep calm. Act resolutely and with consideration. Pay attention to your own
safety.
2. Switch off test chamber.
3. Call a doctor.
4. Initiate first aid measures. If available: Call a trained first aid helper.
1.9 Switching off test chamber in an emergency
Push main switch on front side of appliance
(Fig. 2). This causes the test chamber to
switch off.
Remember that the inside of the chamber
may still be very hot or very cold even after
it has been switched off, and that there may
still be hot steam inside the chamber. Fig. 2
Switching off test chamber by pressing main
switch

10
Design and description
2. Design and description
2.1 Design
1
2
17
18
16
15
13
12
11
10
7
5
4
3
8
9
6
14
Fig. 3 Design of TTC temperature test chambers and CTC climatic test chambers
1 Controller/operating panel (see page 28)
2 Main switch / push-turn control (see page
27)
3 Temperature sensor (see page 21)
4 Laptop (optional) (see pages 21 and 43)
5 Laptop holder (special accessories, see
page 21)
6 Chamber fan
7 Chamber seal
8 Interior for chamber load
9 Fan/air filter of cooling unit (see page 63)
10 USB connection/ communication inter-
faces (see also Fig. 4 and page 55)
11 Additional socket 230 volt/max. 5 amp.
(see also Fig. 4)
12 Locking swivel castors
13 Drawer for water tank with document
compartment (only for CTC climatic test
chambers, see page 22)
14 Nameplate (see page 16)
15 Door seal
16 Door
17 Handle to open and close door (see page
25)
18 Side feed-through to chamber, 80 mm
diameter

11
Design and description
1
2
3
4
5
76
Fig. 4 Connection panel at bottom left of appliance base (see Fig. 3, Items 10 and 11)
1 Socket 230 volt/max. 5 A
2 Floating switch contact SP = setpoint reached for message that the temperature in the
chamber lies within a tolerance range of ± 2 K. Load capacity 24 volt/2 amp. (optional)
3 Floating switch contact alarm for error display. Load capacity 24 volt/2 amp. (optional)
4 Additional freely positionable Pt100 temperature sensor (optional)
5 Floating switch contacts A, B and C, can be switched, depending on programme, via “Cel-
sius” software. Load capacity 24 volt/2 amp. (optional)
6 USB interface
7 Parallel printer port
2.2 Description
2.2.1 Temperature operation
The test chamber can heat the interior up to 190 ºC and cool it down to –42 ºC.
To avoid condensation in the interior, the appliance has various heating systems:
►low-voltage door frame and seal heating, contacted via door contacts
►condensation water outlet pipe heating
►heated glass sheet and glass frame heating (only for the glass door option)
The temperature is lowered through an integrated cooling unit.
2.2.2 Humidity operation (only CTC climatic test chamber)
The CTC climatic test chamber can in addition lower humidity in the chamber to 10 % rh or
increase it to up to 98 % rh. Humidification takes place via a PTC hot steam generator.
The amount of steam is controlled by two self-priming tube dosing pumps.
Dehumidification takes place through controlled cooling the evaporator temperature below
the dew point.
Humidity measuring takes place via a temperature-resistant capacitive humidity sensor.
The humidity setpoint can be adjusted within the range 10 to 98 % rh. If a humidity setpoint
of 0 % rh is set, the humidification and dehumidification control is completely deactivated.

12
Design and description
Important: The relative air humidity can only be set in the temperature range of 10 °C to 95 °C.
The CTC climatic test chamber has two freshwater tanks with automatic switchover (see page
22). The currently active tank is indicated in the control display by “TANK1” or “TANK2” (see
page 28).
2.3 Working range
Caution:
If in operation at the upper level or outside the working range for long periods, puddles
of water may form inside the chamber and water may pass the door seal.
Humidity rh%
Temperature in ˚C
100
90
80
70
60
50
40
30
20
10
0
0 102030405060708090100
Fig. 5 Control range of temperature and
relative humidity
Temperature in ˚C
Heat input [W]
Fig. 6 Heat compensation Tambient = 25 °C
2.3.1 Temperature change rate
The temperature change rate (K/min) is the time the appliance needs to heat up from -18 °C to
158 °C or to cool down from 158 °C to -18 °C (Fig. 7).
In order to determine the appliance-specific temperature change rate, a calibrated reference
instrument is needed. Its sensor is placed in the middle of the appliance’s interior.
1. Set the temperature to -40 °C and wait until the appliance has cooled down completely
(recommendation: 2 hours).
2. Set the temperature to 180 °C and then measure the time between the 10% and
90%-marks of the overall temperature range of 220 K (i.e. from -18 °C to 158 °C).
3. After the temperature has stabilised (in around 30 minutes), set it back to -40 °C and then
measure the time between the 90% and 10%-marks of the temperature range (i.e. from
158 °C to -18 °C).
The cooling down speed and heating up speed is 176K divided by the respectively measured
time in minutes (K/min).

13
Design and description
90 % = 158 °C
10 % = –18 °C
t
Aufheizzeit Abkühlzeit
Tmin (0 %)= –40 °C
Tmax (100 %)= 180 °C
T
220 K 176 K
Fig. 7 Heating up speed and cooling down speed
2.4 Basic equipment
FCKW-free cooling unit with automatic hot gas defrosting device and motor-driven air circula-
tion in the chamber
►Electronic fuzzy-supported PID process controller with permanent performance adjust-
ments and time-saving self-diagnosis system to quickly locate errors (see chapter chapter
6. Malfunctions and error messages on page 44)
►Alphanumeric text display (see page 28)
►Control of appliance and logging of actual values on MEMoryCard XL (see page 58)
►Programme sequence control for up to 40 ramp segments (see chapter 5.8.5 Program-
ming mode on page 35)
►Integrated week time switch with group function (e.g. each working day) (see chapter
5.8.3 Week time switch on page 33)
►Retracting push-turn control for simple operation of appliance (see page 27)
►Acoustic warning signal when programme ends and for input acknowledgment (button
click) (see page 47)
►Digital monitoring control for overtemperature, undertemperature and automatic setpoint
following (automatic safety function / ASF) (see page 48)
►Two separate Pt100 temperature sensors DIN Cl. A in a 4-wire circuit for control and moni-
toring (see page 21)
►Parallel printer port (PCL3-compatible) (see page 46)
►USB interface (optionally Ethernet) for computer-based temperature control programmes
and to read out the controller’s internal log memory (see page 55)
►MEMMERT Celsius software from version V9.4 for remote control of the test chamber via
computer and to read out the controller’s internal log memory

14
Design and description
►Calibration certificates for temperatures at –20 °C and +160 °C and for humidity at 30 °C
and 60 % rh
►A pre-formatted empty MEMoryCard XL with a storage capacity of 32 kByte.
►Reprogrammable for up to 40 ramp segments and in addition 135 hours of log memory
for temperature and humidity, with a scan interval of 1 minute (see page 58).
►Optional equipment (available separately as an accessory): External card reader for
MEMory-Card XL for connection to the PC-USB interface, printer cable (parallel, shielded)
25-pin (see page 59)
►Language settings (German, English, French, Spanish, Italian) (see page 47)
►Capacitive humidity sensor (only for CTC 256)
►Active humidity control guarantees that setpoint humidity is quickly achieved, with short
recovery times, and avoiding condensation formation (only for CTC 256)
►7 different ramp close commands for sophisticated temperature control tasks (see page
38)
►Visual and acoustic warning signals if temperature or humidity limits are crossed, and if
water container is empty
►Feed-through 80 mm on right with silicon sponge plug
►Internal log memory with 1024 kB as ring memory for all temperature and humidity val-
ues, errors and settings in real time and with date, logging approx. 3 months at 1 minute
storage interval (see page 57)
►Calibration possible without separate computer: 3-point calibration on temperature con-
troller and 2-point calibration for humidity at 20 % rh and 90 % rh (see page 51)
2.5 Material
For the outer housing, MEMMERT uses stainless steel (W.St.No. 1.4016 = ASTM 430), for the
interior, stainless steel (W.St.No. 1.4301= ASTM 304) is used, which stands out through its
high stability, optimal hygienic properties and corrosion-resistance towards many (but not all!)
chemical compounds (caution for example with chlorine compounds).
The chamber load for the appliance must be carefully checked with respect to chemical com-
patibility with the materials mentioned.
A resistance table for all these materials can be requested from the company MEMMERT.
2.6 Intended Use
CTC temperature test chambers and CTC climatic test chambers may be used exclusively for
temperature and climate testing of materials and substances in the context of the procedures
and specifications described in this manual. Any other use is improper, and may result in
hazards and damage.
The test chambers are not explosion-proof (they do not comply with the workplace health
& safety regulation VBG 24 of the Administrative Employers‘ Liability Insurance Association).
The chambers may only be loaded with materials and substances which cannot produce any
toxic or explosive vapours at temperature ranges up to 190 ºC, and which themselves cannot
explode, burst or ignite.
The test chambers may not be used for drying, vaporising and branding paints or similar
materials, the solvents of which could form an explosive mixture when combined with air. If
there is any doubt as to the composition of materials, they must not be loaded into the test
chamber. Potentially explosive gas-air mixtures must not be produced, either in the interior of
the chamber or in the direct vicinity of the appliance.

15
Design and description
2.7 EC Declaration of Conformity
EC D
e
Manufacturer’s name and addre
s
Product:
Type:
Size:
Rated voltage:
This
p
roduct com
p
lies with the
pr
M
D
irective of the Council for harm
The tested product’s level of compli
a
EN ICO 12100-1, -2: 2004
EN ISO 13850: 2007
Directive of the C
o
uncil for ha
r
The tested product’s level of complianc
e
compliance with the following standard
s
DIN EN 61326-1: 2006-10
DIN EN 61000-3-11: 2001-04
Applied harmonised standards:
L
o
Directive of the C
o
uncil for harmo
n
The tested product’s level of complianc
e
compliance with the following standard
s
DIN EN 61 010-1 (VDE 0411 part 1):2002
-
DIN EN 61 010-2-010 (VDE 0411 part 2-0
1
Schwabach, Germany, 12.10.12



(legally binding signature of the manufac
t
This declaration states the compliance wit
h
instructions in the supplied documents ha
v
e
claration of Conformi
t
s
s
:
MEMMERT GmbH
Ä
ußere Rittersbach
91126 Schwabach,
limatic Testin
g
Cha
m
CTC.../ TTC
256
AC 400 V 50 Hz
r
ovisions of the directives:
M
achinery Directive 2006/42/EC
and revisions
onisation of the laws of Member States
o
n the level
o
prevention.
a
nce with the essential protection requirements of the Dire
c
compliance with the following standards:
EN ISO 13857: 2008
EN 60204-1: 2007
EMC Directive 2004/108/EC
and revisions
r
monisation of the laws of Member S
t
ates on electro
m
e
with the essential protection requirements of the Directive
s
:
EN 61326-1: 2006
EN 61000-3-11: 2000
o
w Voltage Directive 2006/95/EC
and revisions
n
isation of the laws of Member S
t
ates relating to ele
c
for use within certain voltage limits.
e
with the essential protection requirements of the Directive
s
:
-
08 EN 61 010-1:2001
1
0):2004-06 EN 61 010-2-010:2003
t
urer)
h
the above Directives, however, does not provide any warrante
v
e to be observed.
ty
+ Co. K
G
er Straße 3
8
German
y
m
bers
o
f protection for accident
c
tive is substantiated by its
m
agnetic compatibility.
is substantiated by its
c
trical equipment designed
is substantiated by its
d properties. The safety
D24897

16
Design and description
2.8 Designation (nameplate)
The nameplate provides information about the appliance model, manufacturer and technical
data. It is attached to the front of the appliance, on the right beneath the interior (see page
10).
1
2
3
4
5
6
9
8
7
Fig. 9 Nameplate
1 Type designation
2 Connected loads
3 Applied standard
4 Degree of protection
5 CE conformity
6 Manufacturer address
7 Disposal note
8 Rated temperature range
9 Factory number

17
Design and description
2.9 Technical data
Type TTC 256 CTC 256
Chamber width A* [mm] 640
Chamber height B* [mm] 670
Chamber depth C* [mm] 597
Appliance width D* [mm] 898
Appliance depth F* [mm] 1100
Appliance height E* [mm] 1730
Chamber volume [liter] 256
Weight [kg] ≤320 ≤350
Performance [W] 7000
max. number of sliding grates 6
max. load per sliding grate [kg] 25
max. load per appliance [kg] 100
Temperatures min/max. –42 ºC/+190 ºC
Adjustment precision -42 °C – 100 °C: 0,1 °C
100 °C – 190 °C: 0,5 °C
Monitoring –50 ºC ... +200 ºC
Humidity –10−98 % rh
Refrigerant R 404 A, 1700 g
Noise level ≤62 dBA
Air circulation in chamber ≤1200 m³/h
Electrical equipment
Operating voltage 3N400 V
Current consumption 10,6 A
Safety class 1 (acc. to EN 61010)
Degree of protection IP 20 (EN 60529)
Interference-suppressed class B acc. to EN 55011
Fuses 250 V/F 15 A

18
Design and description
D
E
A
B
F
80
C
Fig. 10 Dimensions of CTC/TTC test chambers
2.10 Environmental conditions
►The test chamber may only be used in enclosed rooms and under the following environ-
mental conditions:
Ambient temperature: 16 ºC to 28 ºC
Air humidity: max. 70 % not condensing degree of pollution: 2
Altitude of installation max. 2000 m above sea level
►The test chamber may not be used in areas where there is a risk of explosions. The ambi-
ent air must not contain any explosive dusts, gases, vapours or gas-air mixtures. The test
chamber is not explosion-proof.
►Heavy dust production or aggressive vapours in the vicinity of the appliance could lead to
sedimentation in the chamber interior and as a consequence, could result in short circuits
or damage to electrical parts. For this reason, sufficient measures should be taken to pre-
vent large clouds of dust or aggressive vapours from developing.
2.11 Connections
Observe the country-specific regulations when making connections (e.g. in Germany DIN VDE
0100 with RCD circuit breaker).
This appliance is intended for operation on an electrical power system with a system imped-
ance Zmax at the point of transfer (service line) of a maximum of 0.292 Ohm. The operator
must ensure that the test chamber is operated only on an electrical power system that meets
these requirements. If necessary, you can ask your local energy supply company what the
system impedance is.
2.12 Standard accessories
►Steel grids
►Silicone plugs to close up the cable feed-through in the right-hand side wall (see Fig. 18
on page 26)

19
Delivery, Transport and Setting Up
3. Delivery, Transport and Setting Up
3.1 Safety Regulations
Warning!
You may get your hands or feet squashed when transporting
and installing the test chamber. Wear protective gloves and
work shoes.
Warning!
Because of the weight of the chamber, you could get injured if you
try to lift it. Transport the test chamber only with a fork-lift truck,
manual pallet jack or on its castors. The transport means used must
be designed to carry the weight of the test rig (see chapter 2.9 Tech-
nical data on page 17). The test chamber may only be moved using a
means of transport by persons who have the required qualification
for this (e.g. fork-lift licence).
The test rig may not be transported with a crane.
Warning!
The test chamber could fall over and seriously injure you. Never tilt
the test chamber and transport it only in an upright position. This
will also prevent oil from running out of the cooling unit and into
the refrigerant circuit. The weight of the test chamber is divided
asymmetrically, since the refrigeration unit is located on the left
side.
3.2 Delivery
The test chamber can be packaged in a cardboard or other box, and is delivered on a wooden
pallet.
3.2.1 Unpacking
Remove cardboard packaging by pulling upwards or cutting carefully along an edge. Unscrew
wooden crate and remove. Raise climate chamber from the wooden pallet using a fork-lift
truck or manual pallet jack and set down on the castors of the appliance.
3.2.2 Checking for completeness and transport damage
►Check the delivery note to ensure that the delivery is complete.
►Check the test chamber for damage, fluid leaking, etc.
If you notice deviations from the delivery note, damage or irregularities, do not put the test
chamber into operation, but inform the haulage company and the manufacturer.
3.2.3 Disposing of packaging material
Dispose of the packaging material (cardboard, wood) in accordance with the appropriate
regulations for the material in your country.
3.3 Storage after delivery
If the test chamber is first to be stored after delivery: Read the storage conditions from page
65.

20
Delivery, Transport and Setting Up
3.4 Transport
The test chamber can be transported in three ways:
►on its own castors, for which the catch on the (front) castors must be released
►with a fork-lift truck; move the forks of the truck entirely under the test chamber
►on a manual pallet jack
Caution:
If the test chamber is to be transported again after it has been put into operation, for
example at a different location: First empty the freshwater and condensation water
tanks (see page 22).
3.5 Installation
Warning!
Never stack test chambers on top of each other. The test rig on top
could fall down and serious injury or death could occur.
Warning!
The test chamber may only be installed on the floor, and never on
tables or similar. A table could collapse, or it could fall off and seri-
ous injury or death could occur.
The installation site must be flat and must be able to reliably carry the weight of the test
chamber (see chapter 2.9 Technical data on page 17).
An 400 V/16 A/50 Hz power connection (CEE socket) must be available at the installation site.
The distance between the test chamber and the walls/ceiling must be at least 25 cm. The
ventilation slits of the cooling unit on the front of the appliance (see page 10) may not be
manipulated.
Sufficient air circulation in the vicinity of the chamber must be guaranteed at all times.
 FP
 FP  FP
 FP
Abb. 11 Minimum clearance from walls and ceiling
Position the test chamber exactly level.
After installing, lock the front swivel castors.