HPP page 1
Constant
Climate Chamber
with Peltier technology
HPP 108
Operating Instructions
HPP page 2
1. Contents
1. Contents ......................................................................................................................................................................2
2 General notes and safety notes ....................................................................................................................................4
2.1 Transport ...........................................................................................................................................................4
3 Installation facilities (accessories) .................................................................................................................................. 5
3.1 Subframe ........................................................................................................................................................... 5
3.2 Stackable version ..............................................................................................................................................5
3.3 Initial start-up .................................................................................................................................................... 6
3.4 Oven load ..........................................................................................................................................................6
4 Technical data .............................................................................................................................................................. 7
4.1 Working range of the HPP units ............................................................................................................................ 9
4.3 Material quality ................................................................................................................................................ 11
4.4 Electrical equipment ........................................................................................................................................11
4.5 Note on EMC (electromagnetic compatibility) ....................................................................................................... 11
4.6 External connection ......................................................................................................................................... 11
4.7 Water connection ................................................................................................................................................ 11
5 Oven construction and operation ...............................................................................................................................12
5.1 Operating the door ..........................................................................................................................................12
5.2 Setting the temperature ...................................................................................................................................12
5.3 Controls and indications ..................................................................................................................................13
5.4 Switching on ................................................................................................................................................... 13
6 Selecting the operating mode .................................................................................................................................... 14
7 Setting the parameters ...............................................................................................................................................14
8 Normal operation ............................................................................................................................................15
8.1 Setting example “Normal operation“ ....................................................................................................................16
9 Weekly programmer ........................................................................................................................................17
9.1 Programming example “Weekly programmer“ ......................................................................................................18
10 Programme operation ...................................................................................................................................... 19
10.1 Closure commands for ramp segments ............................................................................................................21
10.2 Programming example programme operation ....................................................................................................22
11 Printer
PRINT
.............................................................................................................................................................25
12 Basic oven settings
SETUP
...........................................................................................................................................26
12.1 Real-time clock ................................................................................................................................................27
13 Temperature monitor and protection devices .............................................................................................................. 28
13.1 Electronic temperature monitor HPP .................................................................................................................28
13.1.1 Overtemperature protection
MAX
.................................................................................................................28
13.1.2 Undertemperature protection
MIN
...............................................................................................................28
13.1.3 Adjustable temperature monitor (TWW) Protection Class 3.3 to DIN 12 880 ................................................... 29
13.1.4 Adjustable temperature limiter (TWB) Protection Class 2 to DIN 12 880 .......................................................... 29
13.1.5 Automatic temperature monitor (ASF)
AUTO
............................................................................................... 30
14 Active humidity control (%rh) ..................................................................................................................................... 32
15 Audible alert signals ................................................................................................................................................... 33
16 Calibration ................................................................................................................................................................. 34
17 Humidity ....................................................................................................................................................................36
18 Communication interface for the PC ...........................................................................................................................38
18.1 Communication interface USB ..........................................................................................................................38
18.2 Bus interface RS485 ...........................................................................................................................................38
18.3 Communication interface RS232C ....................................................................................................................38
19 Report memory ..........................................................................................................................................................40
19.1 Reading the report memory ............................................................................................................................. 40
19.2 Reading the report memory into the PC via USB ...............................................................................................40
19.3 Printing the report memory from the climatic chamber .....................................................................................40
HPP page 3
20 Memory card: MEMoryCard XL...................................................................................................................................41
20.1 Programming the MEMoryCard XL from the climatic chamber .......................................................................... 41
20.2 Programming the MEMoryCard XL from a PC with the climatic chamber .......................................................... 41
20.3 Programming the MEMoryCard XL from a PC using the read-write unit ............................................................41
20.4 Documentation on memory card MEMoryCard XL ............................................................................................. 42
21 User-ID-Card (available as optional extra) ....................................................................................................................43
22 Maintenance ..............................................................................................................................................................44
23 Cleaning ....................................................................................................................................................................44
23.1 Cleaning HPP incubators ..................................................................................................................................45
24 Check list for fault rectification ...................................................................................................................................45
25 Supply failure ............................................................................................................................................................. 46
26 CE Conformity Declaration .........................................................................................................................................47
27 Address .....................................................................................................................................................................49
28 Index .........................................................................................................................................................................50
29 Note ..........................................................................................................................................................................51
HPP page 4
This mark in the Operating Instructions means:
Watch out
Important Note!
2 General notes and safety notes
You have purchased a technically fully proven product which has been produced in Germany with the use
of high-grade materials and the application of the latest manufacturing techniques; it has been factory
tested for many hours.
In addition we guarantee the supply of spare parts over 10 years.
Observation of the Operating Instructions is necessary for faultless
operation and for any possible claims under warranty. If these
Instructions are disregarded, all claims under warranty, guarantee and
indemnification are excluded!
The right to technical modifications is reserved.
Dimensional details are not binding.
2.1 Transport
Always use gloves!
If the oven has to be carried, at least 2 persons are required to transport it.
Do not place the oven on a readily inflammable support surface!
It is important that the oven is set up accurately horizontally!
HPP page 5
mind.
15 cm
mind.
8 cm
mind.
8 cm
mind.
20 cm
3 Installation facilities (accessories)
The oven can be placed on the floor or on a
bench (working surface). It is important that
the oven is set up accurately horizontally; the
door may have to be adjusted (see Section:
„Maintenance“)
The spacing from the back of the oven to the
wall should be at least 15 cm. The spacing to
the ceiling must not be less than 20 cm and
that at the side to the wall not less than 8 cm.
Generally it is essential to have adequate air
ventilation around the oven.
Model HPP 108 is mounted on castors. The front castors pivot and can be locked. In order to ensure the
stability of the oven the front castors must always be set facing towards the front.
Information on accessories will be found in our leaflet or on our internet page www.memmert.com.
Please note the installation instructions for our accessories.
3.1 Subframe
Model HPP 108 can be mounted on a subframe (accessory)
3.2 Stackable version
Two HPP 108 ovens of the same model size can be stacked on each other. Note
that the oven with the lower working temperature must always be placed at the
bottom.
Foot locators (accessory) have to be fitted on the bottom oven.
Take off cover of bottom oven•
Place drill jig (supplied with foot locators) into the inverted cover at the •
back
Mark holes and drill 4.2 mm dia.•
Screw the foot locators to the top of the cover using the screws and nuts •
supplied
Re-fit the cover•
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3.3 Initial start-up
When the oven is started up for the first time, it should be supervised continuously until steady conditions
have been reached. Severe vibrations during transport may cause movement of the temperature probes
in their holder inside the chamber. Note therefore that before the first start-up the temperature probes
should be checked for their correct position and, if necessary, carefully aligned in their mounting (see ill).
3.4 Oven load
Full consideration must be given to the physical and chemical properties of your load (e.g. combustion
temperature etc.) in order to prevent serious damage to load, oven and surroundings.
Please note that the MEMMERT ovens described here are not explosionproof (they do not conform to the
Industrial Association Specification VBG 24) and are therefore not suitable for drying, evaporating and
burning-in of paints, enamels or similar materials whose solvents may produce an inflammable mixture
with air. There must be no possibility of the formation of inflammable gas/air mixtures either within the
oven chamber or in the immediate surroundings of the equipment.
Large amounts of dust or corrosive fumes inside the oven chamber or in the surroundings of the equipment
may produce deposits within the oven and lead to short-circuits or damage the electronics. It is therefore
important that adequate precautions are taken against excessive dust or corrosive fumes.
In order to ensure proper air circulation inside the chamber, there must be sufficient spacing of the load
inside the oven. Do not place any load on the floor, against the side walls or underneath the ceiling of the
chamber (heating ribs). In order to ensure optimum air circulation the shelves must be so inserted that the
air spacings between door, shelf and rear chamber wall are approximately equal.
The maximum number and the loading of the shelves can be found in the table in the Section „Technical
Data“. With unfavourable loading (too closely spaced) it is possible that the set temperature may be
reached only after a longer period of time.
See stick-on label “Correct Loading“ on the oven!
Ill: Chamber ceiling with Pt 100 metal temperature probes
HPP
D
A75 75
E
12
302
10
B 19771
38F
C
USB-Schnittstelle
parallele
Schnittstelle
Anschlusskabel
page 7
4 Technical data
Model HPP 108
Chamber width A [mm] 560
Chamber height B [mm] 480
Chamber depth C [mm] 400
Oven width D [mm] 710
Oven height E [mm] 760
Oven depth F [mm] 640
Chamber volume [litre] 108
Weight [kg] 66/70
Power [W] 350
Max. number of shelves 5
Max. load per shelf [kg] 30
Max. load per oven [kg] 60
HPP page 8
Ambient conditions Ambient temperature HPP: 16ºC to 28ºC•
rH 70% max., no condensation•
Overvoltage category: II•
Contamination level: 2•
temperature
temperature is measued with Pt100 in 4-wire circuit•
Setpoint range 0°C to 70°C•
setting accuracy: 0,1°C•
Working temperature range : from 5°C to 70°C•
variation (time): ±0,1°C max•
uniformity (space): ±0,4 K (at 10 - 37 °C )•
Monitor temperature is measued with Pt100 in 4-wire circuit•
Setpoint range 0°C to 70°C•
setting accuracy: 0,1°C•
Humidity The relative humidity in the chamber is measured by a capacitive humidity
sensor and indicated digitally in %.
accuracy of humidity sensor: 0,5 % rh•
adjustment range: 10 to 90 %rh, off*•
setting accuracy: 1rh%•
indication range: 1 to 98 % rh•
variation (time): ±1,5%rh max•
*setting off: humidity control deactivated
HPP
Temperatur-Feuchte Arbeitsbereich Memmert HPP 108
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Temperatur °C
Feuchte % rH
B
A
C
page 9
4.1 Working range of the HPP units
The temperature-humidity diagram of the humidity chamber HCP indicates the range of temperature and
humidity within which continuous condensation-free operation is possible.
Range A:
Within this range, any combination of temperature and humidity is possible without any appreciable
condensation.
Range B:
Above the range indicated, e.g. 80% rH at 60°C, the steam introduced immediately condenses at the
coldest point of the unit due to the dew point.
With prolonged operation at the upper limit or outside the working
range there is a possibility of water puddles forming inside the chamber
and water can escape from the door seal!
Range C:
At low temperatures and low relative humidity, the usable range depends largely on ambient temperature
and humidity.
Humidity %rh
Temperature °C
Temperature-humidity working range Memmert HPP 108
HPP page 10
4.2 Standard equipment of cooled incubators
HPP incubators with low-noise, long-life and energy-saving Peltier cooling and heating technology •
(during heating, part of the energy required is drawn from the surroundings =heat pump)
Electronic fuzzy-supported PID process controller with permanent power matching and time-saving •
auto-diagnostic system for rapid fault finding (see Section: „Error messages“)
Alphanumerical text display•
Control of oven and documentation of actual values on MEMoryCard XL•
Programme sequence control for up to 40 ramp segments•
Integral weekly programmer with group function (e.g. all workdays)•
Recessing push/turn control for simple operation of oven•
Visual alarm indication•
Built-in sounder as alarm on overlimit, as audible signal at programme end, and to acknowledge •
input (key click)
Digital monitor controller for overtemperature, undertemperature, and as automatically setpoint- •
following monitor (ASF)
Monitor relay to switch off heating in case of fault•
Two separate PT100 temperature sensors Class A in 4-wire circuit for control and monitoring•
Convenient integral 3-point temperature calibration•
Parallel printer interface (PCL3 compatible)•
USB interface for computer-supported temperature programmes and for reading the •
internal report memory
MEMMERT software “Celsius“ for remote operation of oven via a PC and for reading the •
report memory inside the controller
A pre-formatted blank MEMoryCard XL with 32 kB storage capacity, reprogrammable for up to 40 •
ramp segments and additionally 135 hours report memory at 1 minute intervals
Special equipment (to be ordered separately as accessories): •
external card reader for MEMoryCard XL for connection to the PC USB interface, 25-way printer
cable (parallel, screened)
Language selection (English, French, Spanish, Italian, German)•
Capacitive humidity sensor•
Active humidity control avoids condensation and ensures rapid achievement of set humidity •
as well as short recovery times
7 different ramp exit commands for advanced temperature applications•
Visual alarm indication•
Audible signal on over-/undertemperature and over-/under-humidity •
Internal documentation memory 1024kB as ring memory for all temperature and humidity values, •
errors and settings with real-time and date. Documentation approx. 3 months at 1 minute storage
interval
Calibration possible without separate PC: 3-point calibration for temperature on the controller and •
2-point calibration for humidity at 20% rH and 90% rH
HPP page 11
WARNING! Always pull out the supply plug before
opening the oven cover!
4.4 Electrical equipment
Operating voltage see label 50/60 Hz•
Current rating see label•
Protection Class 1, i.e. operating isolation with ground connection to EN 61 010•
Protection IP20 to DIN EN 60 529•
Interference suppression to EN55011 Class B•
Oven protected by a fuse 250V/15A fast blow•
Controller protected by a 100 mA fuse (200 mA on 115 V)•
When connecting a MEMMERT oven to the electrical supply you have to observe any local •
regulations which apply (e.g. in Germany DIN VDE 0100 with FI protection circuit)
4.5 Note on EMC (electromagnetic compatibility)
This product is intended to operate on a supply network with a system impedance Zmax at the transfer
point (building connection) of 0.292 Ohm max. The user has to ensure that the product is only operated
on an electrical supply network which meets these requirements. If necessary, details of the system
impedance can be obtained from the local electricity supply authority.
Note:
Any work involving opening up the oven must only be carried out by a suitably qualified
electrician!
4.6 External connection
Equipment connected to the external connections must have interfaces which meet the requirements for
safe low voltage (e.g. PC, printer).
4.7 Water connection
The water container supplied has to be filled with distilled water and connected to the H2O connection
using the hose supplied.
4.3 Material quality
For external housing MEMMERT employs stainless steel (Mat.Ref. 1.4016). The chamber is made from
stainless steel (Mat.Ref. 1.4301) which exhibits high stability, optimum hgygienic properties and corrosion
resistance against many (not all) chemicals (warning against e.g. chlorine compounds).
The oven load has to be checked carefully for its chemical compatibility with the above materials.
A compatibility table covering all these materials can be requested from MEMMERT.
HPP page 12
5 Oven construction and operation
5.1 Operating the door
The door is opened by pulling on the door handle.
The door is closed by the door handle being pushed in.
open
close
5.2 Setting the temperature
Hold down the SET key and set the temperature setpoint with the push/turn control.
After the SET key has been released the display briefly flashes the temperature setpoint. The display then
changes to the actual current temperature and the controller starts to control to the selected temperature
setpoint.
close
HPP
set
off
on
push
card
4
3
2
1
mb
CO
mb
2
IN 1
IN 2
OUT
IN 1
IN 2
OUT
PRINT
SETUP
loop
t3
t4
t2
t1
on
off
Mo
Tu
We
Th
Fr
Sa Su
°C
°C
MIN
AUTO
MAX
h
rh
DEFROSTERI
%
page 13
5.3 Controls and indications
5.4 Switching on
Oven switched on and can be operated using the push/turn control and the SET key.
The oven is switched on by pressing the push/turn
control.
Oven switched off. The push/turn control is pushed
in and protected against damage.
push/turn control
(main switch)
SET key
chip card
reader
temperature
display
time
display
alarm indication
heating
monitor temperature
indication
text display
cooling
manipulation prevention
(User-ID-Card)
sounder
humidity
indication
operating mode
indication
steam
generation
warning water
container empty
Programme
operation
HPP page 14
6 Selecting the operating mode
PRINT
SETUP
After holding down the SET key (approx. 3 sec), the current operating mode flashes on the display.
A different operating mode can be selected with the push/turn control while the SET key is being held
down. After the SET key has been released the controller operates in the new operating mode.
7 Setting the parameters
After an operating mode has been selected, all relevant controller settings are shown simultaneously on
the display.
A parameter (menu item) can be selected by rotating the push/turn control; all other parameters are then
dimmed.
The selected parameter flashes brightly and can now be altered with the push/turn control while holding
down the SET key.
After the SET key has been released the newly set value is stored.
If the push/turn control or the SET key have not been operated for a period of 30 seconds, the controller
automatically returns to the main menu.
Normal
operation
Weekly
programmer
Programme
operation
Printer Basic settings
HPP
MIN
MAX
AUTO
°C
page 15
8 Normal operation
PRINT
SETUP
In this operating mode the oven operates continuously. The settings for operating the oven can be selected.
The settings act directly on the operation of the oven.
By rotating the push/turn control the following parameters can be selected and can be altered as described
in the Section „Setting the parameters“:
Temperature setpoint
Range: 0°C bis 70°C
˚C
Temperature monitor
Adjustment range: MIN MAX AUTO
(see Section: „Temperature monitor“)
MIN
MAX
AUTO
°C
Humidity setpoint
Range: 10 to 90%rh, off
rh
%
HPP
temperature
°C
relative humidity
(rh) %
time
time
60
80
40
20
100
temperature monitor
60
80
40
20
100
page 16
8.1 Setting example “Normal operation“
The climatic chamber has to heat up to 50°C at 70% fan speed.
The monitor function has to operate at 51°C.
1. Select operating mode “Normal operation“
After holding down the SET key (approx. 3 sec), the current operating
mode is flashing. Select operating mode I with the push/turn control
while holding down the SET key.
After the SET key has been released the controller is in
operating mode I.
PRINT
SETUP
2. Select temperature setpoint
Hold down the SET key and use the push/turn control to select the
required temperature setpoint of 50°C.
After the SET key has been released the oven briefly flashes the
temperature setpoint. The display then changes to the actual temperature
and the controller starts to control to the selected temperature setpoint
50°C.
Heating is indicated by the orange heater symbol
Cooling is indicated by the green cooling symbol
˚C
3. Select monitor temperature:
Turn the push/turn control clockwise until the overtemperature
protection and the symbol
MAX
or
MIN
flashes. Keep the SET key
depressed and use the push/turn control to set the overtemperature
protection to 51.0 °C and the undertemperature protection to 49.0 °C.
or:
Turn the push/turn control clockwise until the monitor temperature and
the symbol
AUTO
flashes. Keep the SET key depressed and set the push/
turn control to on .
The tolerance band is selected in the SETUP menu (see section 11).
°C
MIN
AUTO
MAX
4. Select humidity setpoint:
Turn the push/turn control clockwise until the humidity display flashes.
Keep the SET key depressed and use the push/turn control to set the
required humidity setpoint of 70.0 %. After the SET key has been
released the humidity setpoint continues to flash briefly. The display
then changes to the actual humidity and the controller starts to control
to the set value.Humidification is indicated by the symbol .
rh
%
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