Memmert HPP 108-749 User Manual

OPERATING MANUAL

HPP 108/749

Constant climate chamber with Peltier cooling

Manufacturer and customer service

MEMMERT GmbH + Co. KG
PO Box 17 20
91107 Schwabach, Germany

Äußere Rittersbacherstr. 38
91126 Schwabach
Germany

Phone: [phone] / 925-0
Fax: [phone] / 14585
E-mail: [e-mail]
Internet: www.memmert.com

Customer service:
Phone: [phone]
and: [phone]/925-126
E-mail: [e-mail]

For service enquiries, please always specify the appliance number on the nameplate
(see page 14 ).

© 2011 Memmert GmbH + Co. KG
Date 02/2011
We reserve the right to make changes.

About this manual

About this manual

Purpose and target group

This manual describes the setup, function, transport, operation and maintenance of constant
climate chambers of types HPP 108 and HPP 749. It is intended for use by accordingly trained
staff of the operator who are in charge of operating and / or maintaining the constant climate
chamber.

If you as the user intend to work with the constant climate chamber, you should read this
manual carefully before starting work with the unit. Familiarise yourself with the safety regula­tions. Only perform the work that is described in this manual. If there is something you do
not understand, or certain information is missing, ask your superior or get in touch with the
manufacturer. Do not do anything without authorisation.

Optional equipment

The constant climate chamber can be optionally equipped with an LED interior light to simu­late daylight. In this manual, information related to this is marked with the word “optional”.
This means that this information is only relevant for appliances that include this function.

Other documents to be observed:

► for service and repair work (see page 57 ) – a separate service manual
► for controlling the constant climate chamber with the Memmert computer software “Cel-

sius” (see page 38 ) of the separate manual for this

► calibration documents

Storage and transfer

This instruction manual for the constant climate chamber should always be kept in a place
where those working with the constant climate chamber have access to it. It is the respon­sibility of the operator to ensure that persons who are working with or will work with the
constant climate chamber are informed as to the whereabouts of this instruction manual. We
recommend that it is always kept in a safe space close to the constant climate chamber. Make
sure that the instruction manual is not damaged by heat or humidity. If the constant climate
chamber is sold on or transported and then set up again at a different location, this instruc­tion manual must also go with it.

3

Content

Contents

1. Safety regulations 6

1.1 Terms and icons used .......................................................................................................... 6

1.1.1 Terms used .................................................................................................................... 6

1.1.2 Icons used ...................................................................................................................... 6

1.2 Product safety and dangers ................................................................................................ 7

1.3 Requirements of the operating personnel .......................................................................... 7

1.4 Responsibility of the owner ................................................................................................. 7

1.5 Changes and conversions ....................................................................................................8

1.6 Behaviour in case of malfunctions and irregularities ..........................................................8

1.7 Switching off the constant climate chamber in an emergency .......................................... 8

2. Design and description 9

2.1 Construction ........................................................................................................................ 9

2.2 Description .........................................................................................................................10

2.3 Working range ................................................................................................................... 10

2.4 Basic equipment ................................................................................................................ 11

2.5 Material.............................................................................................................................. 12

2.6 Intended use ...................................................................................................................... 12

2.7 EC declaration of conformity ............................................................................................13

2.8 Designation (nameplate) ................................................................................................... 14

2.9 Technical data .................................................................................................................... 14

2.10 Ambient conditions ........................................................................................................... 16

2.11 Electrical connection ..........................................................................................................16

2.12 Standard accessories ......................................................................................................... 16

3. Delivery, transport and setting up 17

3.1 Safety regulations .............................................................................................................. 17

3.2 Delivery .............................................................................................................................. 17

3.2.1 Unpacking ...................................................................................................................17

3.2.2 Checking for completeness and transport damage....................................................17

3.2.3 Disposal of packaging material ................................................................................... 17

3.3 Storage after delivery ........................................................................................................17

3.4 Setup.................................................................................................................................. 17

3.4.1 Setting up options .......................................................................................................19

4. Putting into operation 20

4.1 Checking ............................................................................................................................ 20

4.1.1 Check the door and adjust if necessary ......................................................................20

4.1.2 Checking the temperature sensor ...............................................................................20

4.2 Fill up and connect the water tank ...................................................................................20

4.3 Electrical connections ........................................................................................................ 21

4.4 Switching on ...................................................................................................................... 21

5. Operation and control 22

5.1 Operating personnel.......................................................................................................... 22

5.2 Opening the door .............................................................................................................. 22

5.3 Loading the constant climate chamber ............................................................................ 22

4

Content

5.4 Basic information on operation ........................................................................................23

5.4.1 Switching appliance on and off .................................................................................. 23

5.4.2 User interface/controller ..............................................................................................23

5.4.3 Basic operation ............................................................................................................ 24

5.4.4 Setting parameters ...................................................................................................... 24

5.5 Operating modes ...............................................................................................................24

5.6 Operating mode settings ..................................................................................................25

5.6.1 Normal mode ..............................................................................................................25

5.6.2 Settings example normal mode .................................................................................. 26

5.6.3 Week time switch ........................................................................................................ 27

5.6.4 Settings example week time switch ............................................................................ 28

5.6.5 Programme mode ...................................................................................................... 29

5.6.6 Close statements for ramp segments .........................................................................32

5.6.7 Settings example programming mode ....................................................................... 34

5.6.8 Operation with computer/laptop (optional) ...............................................................38

5.7 Ending operation ............................................................................................................... 38

6. Malfunctions, warning and error messages 39

6.1 Warning messages temperature monitoring/humidification ........................................... 39

6.2 Power failure ......................................................................................................................40

7. Advanced functions 41

7.1 Printer ............................................................................................................................... 41

7.2 Basic appliance settings (Setup) ........................................................................................ 41

7.3 Temperature monitoring and safety equipment ...............................................................43

7.3.1 Electronic temperature monitoring (TWW) ................................................................44

7.3.2 Automatic temperature monitor (ASF) ...................................................................... 45

7.3.3 Warning messages ......................................................................................................46

7.4 Heat output distribution (BALANCE) ................................................................................. 47

7.5 Calibration ......................................................................................................................... 48

7.5.1 Temperature calibration ..............................................................................................48

7.5.2 Humidity calibration .................................................................................................... 49

7.6 Communication interfaces ................................................................................................ 50

7.6.1 USB interface .............................................................................................................50

7.6.2 Communication interfaces RS232/RS485 (optional) ................................................... 51

7.6.3 Connecting test chambers to a network with Ethernet interface .............................. 52

7.6.4 Log memory ...............................................................................................................52

7.6.5 Memory card MEMoryCard XL .................................................................................... 53

7.6.6 User ID card (optionally available as an accessory) ..................................................... 55

8. Maintenance and servicing 56

8.1 Cleaning .............................................................................................................................56

8.1.1 Cleaning the Peltier cooling modules ..........................................................................56

8.2 Regular maintenance.........................................................................................................56

8.3 Adjusting door ................................................................................................................... 57

8.4 Repairs and service ............................................................................................................57

9. Storage and disposal 58

9.1 Storage .............................................................................................................................. 58

9.2 Disposal ............................................................................................................................. 58

Index 59

5

Safety regulations

1. Safety regulations

1.1 Terms and icons used

In this manual, certain common terms and icons 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 icons are explained below.

1.1.1 Terms used

“Warning“ is always 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 Icons used

Prohibition sign (forbidding an action)

Do not tilt
appliance

Warning icons (warning of a danger)

Danger of
electrical shock

Regulation signs (stipulate an action)

Disconnect the
mains plug

Observe information in separate manual

Other icons

Do not lift appliance without assistance

Explosive
atmosphere

Wear gloves

Dangerous
gases/vapours

Wear safety
shoes

Important or useful additional information

6

Safety regulations

1.2 Product safety and dangers

Constant climate chambers of types HPP 108 and HPP 749 are technically well-developed,
manufactured using high-quality materials and are tested for many hours in the factory. They
contain the latest technology and comply with recognised technical safety regulations. But
there are still dangers involved, even when the appliance is used as intended. These dangers
are described below.

Warning!
After removing covers, live 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 electricians.

Warning!
When loading the chamber with an unsuitable load, poisonous or
explosive vapours or gases may be produced. This could cause the
chamber 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 poisonous or explosive vapours when heated up
(see also chapter Intended use on page 12 ).

1.3 Requirements of the operating personnel

The constant climate chamber may only be operated and maintained by persons who are of
legal age and who have received instructions for the constant climate chamber. Personnel
who are to be trained, instructed or who are undergoing general training may only work on
the constant climate chamber under the continuous supervision of an experienced person.

Repairs may only be performed by qualified electricians. In this case, the regulations in the
separate service manual must be observed.

1.4 Responsibility of the owner

The owner of the constant climate chamber

► is responsible for the flawless condition of the constant climate chamber and for the con-

stant climate chamber being operated in accordance with its intended use (see page 12);

► is responsible for ensuring that persons who are to operate or service the constant climate

chamber are qualified to do this, have received instructions about the constant climate
chamber and are familiar with this operating manual;

► must know about the applicable regulations, requirements and work protection regula-

tions and train staff acordingly;

► is responsible for ensuring that unauthorised persons have no access to the constant

climate chamber;

► is responsible for ensurting that the maintenance plan is adhered to and that maintenance

work is properly carried out (see page 56 );

► ensures, for example through corresponding instructions and inspections, that the con-

stant climate 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, protective gloves.

7

Safety regulations

1.5 Changes and conversions

No independent conversions or alterations may be made to the constant climate 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
13 ) losing its validity, and the constant climate chamber may no longer be operated.

The manufaturer is not liable for any damage, danger or injuries that result from independent
conversions or alterations, or from non-observation of the regulations in this manual.

1.6 Behaviour in case of malfunctions and irregularities

The constant climate chamber may only be used when in a flawless condition. If you as the
opertor notice irregularities, malfunctions or damage, immediately put the constant climate
chamber out of service and inform your superiors.

You can find information on eliminating malfunctions from page 39 .

1.7 Switching off the constant climate chamber in an emergency

Push main switch on front side of
appliance ( Fig. 1 ). This causes the constant
climate chamber to switch off.

Fig. 1
Switch off constant climate chamber by
pressing main switch

8

2. Design and description

2.1 Construction

1

Design and description

2
3

4

5

6
7

11

10

8

Fig. 2 HPP Constant climate chamber
1 Controller/user interface (see page 23 )
2 Set key
3 Main switch / push-turn control (see page 23 )
4 Door seal
5 Interior seal
6 Chamber fan
7 Sliding shelf
8 Heating ribs
9 Nameplate (underneath door)
10 Door knob
11 Card reader

9

9

Design and description

2.2 Description

The constant climate chamber can heat the interior up to 70 ºC and cool it down to 5ºC. For
this purpose, low-noise, long-life and energy-saving Peltier cooling and heating technology is
used. In heating operation, a part of the required energy is extracted from the surroundings
(heat pump principle).

Humidity in the interior can be regulated between 10 and 90 % rh (rh = relative humidity).
The humidity is increased by water from a tank being evaporated and fed into the interior,
and is reduced through condensation on a Peltier module.

2.3 Working range

The temperature-humidity diagram ( Fig. 3 ) specifies at what range of temperature and humid­ity a permanent, condensation-free operation is possible.

Caution:

If the appliance is 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 force its way out
of the door seal.

100

90

80

70

60

50

Humidity % rH

40

30

20

10

C

B

A

0

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75

Fig. 3 Temperature-humidity working range

10

Temperature °C

Design and description

Range A:

In this range, temperature and humidity can be combined as you please, without resulting in
any significant condensation. If there are extreme ambient conditions, the working range may
be restricted.

Range B:

If the specified range is exceeded upwards, e.g. 80 % rh at 60°C, the hot steam fed in will im­mediately condense, due to the dew-point, at the coldest point in the appliance.

Range C:

At low temperatures and low relative air humidity, the effective range is heavily dependent on
the degree of humidity of the chamber load.

2.4 Basic equipment

► Low-noise, long-life and energy-saving Peltier cooling and heating technology (in heat-

ing mode, part of the energy required is extracted from the surroundings = heat pump
principle)

► Electronic fuzzy-supported PID process controller with permanent performance adjust-

ments and time-saving self-diagnosis system to quickly locate errors (see pages 38 and 45)

► Alphanumeric text display
► Control of the appliance and logging the actual values with a preformatted empty

MEMoryCard XL (storage capacity 32 kByte, reprogrammable for up to 40 ramp segments
and in addition 135 hours of log memory for temperature and humidity with a scanning
interval of 1 minute)

► Programme sequence control for up to 40 ramp segments
► Integrated week time switch with group function (e.g. all working days)
► Retracting push-turn control for simple operation
► Optical alarm display
► Integrated horn as alarm if limit values are crossed, as acoustic signal when programme

ends and to confirm input (button click)

► Digital monitoring control for overtemperature, undertemperature and automatic tem-

perature monitor (ASF)

► Two separate Pt100 temperature sensors DIN class A in a 4-wire circuit for control and

monitoring

► Parallel printer port (PCL3-compatible)
► USB interface for computer-based temperature control programmes and to read out the

controller’s internal log memory

► MEMMERT software "Celsius" for remote control of the chamber via computer (see page

37) and to read out the internal controller log memory

► As an optional accessory, external card reader for MEMory-Card XL for connection to the

PC-USB interface, printer cable (parallel, shielded)- 25-pin

► Language setting (German, English, French, Spanish, Italian)
► Capacitive humidity sensor
► Active humidity control guarantees that setpoint humidity is quickly achieved, with short

recovery times, and avoiding condensation formation

11

Design and description

► 7 different ramp close statements for sophisticated temperature-control tasks
► Acoustic and visual signals if temperature or humidity limits are crossed, and if water tank

is empty

► Internal log memory with 1024 kB as a ring memory for all temperature and humidity

values, errors and settings with realtime and date, logging for approx. 3 months with a
1-minute logging interval

► Calibration possible without separate computer: 3-point calibration on controller for tem-

perature and 2-point calibration for humidity at 20 % rh and 90 % rh

► LED interior light ( light panels) in various light colours (optional)

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 com­patibility with the materials mentioned.

A resistance table for all these materials can be requested from the MEMMERT.

2.6 Intended use

Constant climate chambers HPP 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 workplace health &
safety regulation VBG 24). The chambers may only be loaded with materials and substances
which cannot produce any toxic or explosive vapours at temperature ranges up to 70 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 constant
climate 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.

12

Design and description

2.7 EC declaration of conformity

EC Declaration of Conformity

Manufacturer´s name and address: MEMMERT GmbH + Co. KG

Äußere Rittersbacher Straße 38

D-91126 Schwabach
Product: Constant-Climate-Chamber
Type: HPP …
Sizes: 
Nominal voltage:

The designated product is in conformity with the European EMC-Directive

Council Directive of 03 May 1989 on the approximation of the laws of the Member States relating to

electromagnetic compatibility.

Full compliance with the standards listed below proves the conformity of the designated product with the essential
protection requirements of the above-mentioned EC Directive:

DIN EN 61326-1:2006-10 EN 61326-1:2006
DIN EN 61000-3-11:2001-04 EN 61000-3-11 :2000

The designated product is in conformity with the European Low Voltage Directive

Council Directive on the approximation of the laws of the Member States relating to Electrical

equipment for use within certain voltage limits.

Full compliance with the standards listed below proves the conformity of the designated product with the essential
protection requirements of the above-mentioned EC Directive:

DIN EN 61 010-1 (VDE 0411 part 1):2002-08 EN 61 010-1:2001
DIN EN 61 010-2-010 (VDE 0411 part 2-010):2004-06 EN 61 010-2-010:2003

Schwabach, 23.07.08

______________________________

(Legally binding signature of the issuer)

This declaration certifies compliance with the above mentioned directives but does not include a property assurance. The
safety note given in the product documentation which are part of the supply, must be observed.

AC 230 V 50 / 60Hz

alternative AC 115 V 50/60 Hz

2004/108/EEC

including amendments

2006/95/EEC

including amendments

Modelljahr 2003 D10633 / 23.07.08

13

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 door (see page 9 ).

1

2

3

4

5

6

Fig. 4 Nameplate
1 Type designation

2 Connection values
3 Applied standard
4 Protection type
5 CE conformity

9

8

7

6 Address of manufacturer
7 Disposal note
8 Nominal temperature range
9 Factory number

2.9 Technical data

Model HPP 108 HPP 746

Chamber width A* [mm]

Chamber height B* [mm]

Chamber depth C* [mm]

Appliance width D* [mm]

Appliance depth F* [mm]

Appliance height E* [mm]

Chamber volume [litres]

Weight [kg]

Performance [W]

Max. number of sliding shelves

560 1040

480 1200

400 600

710 1190

640 825

760 1620

108 749

66/70 218/278

350 1050

514

* see Fig. 5 on page 16 .

14

Design and description

Model HPP 108 HPP 746

Max. load per sliding shelf [kg] 30 30
Max. load per appliance [kg]

60 160

Electrical equipment

Operating voltage

Current consumption

Protection class

Protection type

Interference-suppressed

Fuses Appliance: 250 V/15 A (appliance)

Temperature

see nameplate

see nameplate

1 (acc. to EN 61010)

IP 20 (EN 60529)

Class B acc. to EN 55011

Controller: 100 mA (230 V) or 200 mA (115
V)

► Temperature recording: Pt100 in a 4-wire

circuit

► Adjustment range: 0 °C to 70 °C

Adjustment precision: 0.1 °C

► Working temperature range: 5 °C to 70 °C
► Temperature variation (time): ±0.1 °C
► Spatial deviation: max. ±0.3 °C bei 37°

Monitoring

► Temperature recording: Pt100 in a 4-wire

circuit

► Settings range -5 °C to +75 °C
► Adjustment precision: 0.1 °C

Humidity The relative humidity in the chamber is

measured by a capacitive humidity sensor and
displayed digitally in percent

► Measurement precision of the humidity

sensor: 0.5 % rh

► Adjustment range: 10 bis 90 % rh, off*
► Adjustment precision: 1 % rh
► Display range: 1 bis 98 % rh
► Temperature variation (time): max. ±1.5

% rh

* Setting off: Humidity control disabled

* see Fig. 5 on page 16 .

15

Design and description

D

A75 75

E

302

12

Fig. 5 Dimensions of constant climate chambers HPP

2.10 Ambient conditions

38F

C

10

B 19771

► The constant climate chamber may only be used in enclosed rooms and under the follow-

ing environmental conditions:
Ambient temperature: 16 ºC to 28ºC
Humidity: max. 70 % not condensing
Degree of pollution: 2
Altitude of installation: max. 2,000 m above sea level

► The constant climate chamber may not be used in areas where there is a risk of explosions.

The ambient air must not contain any explosive dusts, gases, vapours or gas-air mixtures.
The constant climate 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 pre­vent large clouds of dust or aggressive vapours from developing.

2.11 Electrical connection

Observe the country-specific regulations when making connections (e.g. in Germany
DIN VDE 0100 with residual current device).

This appliance is intended for operation on an electrical power system with a system imped­ance Z
must ensure that the constant climate chamber is operated only on an electrical power system
that meets these requirements. You can ask your local energy supply company what the sys­tem impedance is.

at the point of transfer (service line) of a maximum of 0.292 ohm. The operator

max

2.12 Standard accessories

► Sliding shelf
► Water tank with connection hose

16

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 constant climate chamber. You should
wear protective gloves and work shoes.

Warning!
Because of the weight of the constant climate chamber, you could
cause yourself an injury if you try to lift it. At least two people are
needed to carry the constant climate chamber HPP 108, and four for
the constant climate chamber HPP 749.

Warning!
The constant climate chamber could fall over and seriously injure
you. Never tilt the constant climate chamber and only transport it in
an upright position.

3.2 Delivery

The constant climate chamber can be packaged in cardboard or in a box, and is delivered on a
wooden pallet.

3.2.1 Unpacking

Remove the cardboard packaging by pulling upwards or cutting carefully along an edge.

3.2.2 Checking for completeness and transport damage

► Check the delivery note to ensure that the delivery is complete.
► Check the constant climate chamber for damage.

If you notice deviations from the delivery note, damage or irregularities, do not put the
constant climate chamber into operation, but inform the haulage company and the manufac­turer.

3.2.3 Disposal 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 constant climate chamber is initially to be stored after delivery: Read the storage condi­tions from page 58 .

3.4 Setup

The installation site must be flat and horizontal and must be able to reliably bear the weight
of the constant climate chamber (see chapter Technical data on page 14 ). Do not place the
appliance on a flammable surface.

An 230 V/16 A/115 V power connection (see nameplate) must be available at the installation
site.

17

Delivery, Transport and Setting Up

The distance between the wall and the rear of the chamber must be at least 15 cm. The clear­ance from the ceiling must not be less than 20 cm and the side clearance from the wall must
not be less than 8 cm ( Fig. 6

). Sufficient air circulation in the vicinity of the chamber must be

guaranteed at all times.

FP

FP

FP

Fig. 6 Minimum clearance from walls and ceiling

FP

18