KRFDE series: Vertical refrigerator

KRFDE series: Vertical refrigerator
edition version 1.1
BlueLine
KRFDE series
series vertical refrigerators-freezers
at +4 °C -20 °C
Elite line
Green ICE
KW Antibacteria
KRFDE series
vertical refrigerator-freezers at +4 °C -20 °C Elite line
Micro door
Closing with key
Internal ventilation
refrigerator
compartment
KRFDE 2711
82
KRFDE series
vertical refrigerator-freezers at +4 °C -20 °C Elite line
The KRFDE series is constituted by refrigerator-freezer models KRFDE2711 and KRFDE2711 X.
Models have a ventilated refrigerator compartment (positive T) with a structure that has removable drawers for better use of the
internal volume and lower power consumption; the latter is also due to adequate insulation thickness.
Both compartments (refrigerator and freezer) have, each, their own refrigerating system, independent from each other. The
fully sealed execution of the refrigerating systems and the use of airtight compressors make these refrigerator-freezers a very silent and
reliable option, and aligned with the recommendations of the Kyoto Protocol. The materials and the fluids being used are all natural and
environmentally friendly, and particular attention is paid to problems dealing with the ozone layer and greenhouse effect. The instruments
furnished are typical for high-level professional and scientific refrigerators and freezers, including SLC controllers. The new control GLC
(Golden Line Control) will take place of SLC (see GLC release)
Each compartment has electronic digital temperature monitoring with LED digital display, T min./max. alarms, and contacts for remote
alarm signalling. The doors can be closed with key lock. The solutions adopted for the evaporators, the ventilation of the refrigerator
compartment and the use of two compressors make these very secure and reliable laboratory equipment; they have optimum stability
and uniformity of the conservation temperature, which in turn does not need any defrosting.
A broad range of accessories allow users to customize the freezers to suit their needs.
STRUCTURE
The external structure is made of a cabinet with rounded profile in
stainless steel or white-enamelled steel sheets, reversible doors
with magnetic gaskets and key lock. The cabinet comes with
support feet on the front and small pivoting wheels on the back,
in order to facilitate transportation and placement inside the
laboratory. The door handles have an internal opening mechanism
that allows manoeuvring with minimum effort on the part of the
user. Average insulation thickness about 40 mm in the refrigerator
compartment and 70 mm in the freezer compartment; the insulation
is in environmentally-friendly polyurethane resin, foamed on
site. This, together with the use of drawers, guarantees optimum
capability against thermal dispersion, resulting in really low power
consumption.
Linea KRFDE
10
Temperatura (¡C)
0
300
350
400
450
500
550
-10
600
650
the escape of cold every time the user opens the freezer door and
offering the best organization for the storage of biological products.
The evaporation trays subtract heat from the materials in storage in
a fast, direct fashion; there is no need for defrosting, guaranteeing
maximum stability in the conservation temperature in addition to
good (T) uniformity.
The CONTROL PANEL brings together a simple, modern design and
great ease of use, and there is the option of installing a T recorder..
For each compartment in each system, and SLC control unit is used.
These electronic devices keep the set value reliably and accurately;
the digital LED display allows fast monitoring of T values inside the
compartments. This monitoring also guarantees the total safety of
the stored biological material, including sound (buzzer that can be
muted) and visual alarms; they rapidly inform users about undesirable
increases and decreases in T, and with the remote alarm kit these
signals can be sent to other sites. It is also possible (optional) to have
power failure alarms, with DC power supply through switching or a
12 VDC, 2.3 Ah battery.
The same series is available with the NIA control system.
700
ÐÐÐ VANO POSITIVO
ÐÐÐ VANO NEGATIVO
The new control GLC (Golden Line Control) will take the place of SLC
(see GLC release)
ÐÐÐ SET VANO POSITIVO
ÐÐÐ SET VANO NEGATIVO
-20
-30
-40
TEMPO (minuti primi)
The internal compartments are in white plastic material: nonabrasive ABS with completely rounded edges to facilitate cleaning.
The refrigerator area has internal ventilation and lighting. Particularly
robust brackets and shelves.
In the low-temperature area, the drawers, in plastic materials, close
the space between an evaporation tray and the other, preventing
K W A P PA R E C C H I S C I E N T I F I C I
83
KRFDE series
vertical refrigerator-freezers at +4 °C -20 °C Elite line
KW distributes the KRFDE line with two possible control
systems, known by the initials SLC (Silver Line Control) and
NIA (New Ice Age).
The new control GLC (Golden Line Control) will take place of
SLC (see GLC release)
Input
- 2 analog for NTC sensors (thermostat sensor, evaporator
sensor to manage defrosting)
- 2 digital multi-function (power failure and door open
alarms)
• SLC (Silver Line Control) system
Configuration
- keyboard, remote command, or PC
Electronic digital thermoregulator specific for industrial
and laboratory refrigeration: IP65 protection level
Options
- serial remote command card
ON button, internal lights in version V
(glass door)
PRG/mute button
increase/aux button
Parameters
Parameters are organized into two levels:
First level: frequent parameters that can be accessed
without the need for a PASSWORD (set point).
Second level: configuration parameters that can only be
accessed with a PASSWORD allowing modifications to be
made.
Refrigeration
The control operates on the REFRIGERATION SYSTEM in
order to maintain the set temperature.
The user can control its operation by means of the ICONS
on the control panel.
Visual alarms:
SENSOR ALARMS
In case of temperature alarm breakdown or failure.
SET button
decrease/def button
Main switch
Display
• PRG button, to configure parameters, mute the buzzer,
etc.
• SET button, to modify the set point and for
configuration
• Tdecrease/def button, to modify parameters and
manual defrost
• S increase/aux button, to modify parameters and for
auxiliary functions
84
TEMPERATURE ALARM
If, for any reason, the temperature starts increasing
or decreasing until it falls outside the allowed range
(configured with respect to the defined set point), the
internal timer is activated (configurable alarm delay, 30
minutes by default but the value can be modified upon
customer request); after this period the TEMPERATURE
ALARM activates both visual and sound (BUZZER) alerts,
and at the same time activates the remote alarm contact
to send, if connected, a warning to the user regarding the
failure.
Keyboard and display
4–key keyboard with menu structure and LED display, 2+1/2
digits with automatic digital point (between -19.9 °C and
+19.9 °C) marked; perfectly visible with natural or artificial
light from any angle.
DOOR OPEN ALARM (optional)
2 minutes (standard time, but configurable upon user
request) after the door is opened, the display shows the
word “DOOR” and the BUZZER sounds; the internal fan
starts, because if the door was “incompletely” closed
restarting ventilation allows keeping the internal
temperature at acceptable levels: in the meantime, under
user supervision, the remote alarm contact is activated
to warn the operator if the equipment has a remote
connection.
aux
POWER FAILURE ALARM (optional)
When the equipment is furnished with a backup battery,
is it possible to visualize the temperature reading, even
if there is no power supply to the laboratory, for several
hours. The internal buzzer and remote alarm signalling also
remain active. The letters “DA” appear on the display and
KRFDE series
vertical refrigerator-freezers at +4 °C -20 °C Elite line
the BUZZER starts sounding. Please bear in mind that the backup
battery, 12V 2.3 Ah, has a life of 2-3 years. KW recommends verifying
battery power about every six months.
Standard equipment includes a connector for remote alarm
towards the user.
• NIA (New Ice Age Control) system
This is an evolution in terms of quality regarding the management
of refrigerating machines.
REGULATION, SUPERVISION AND RECORDING IN A SINGLE
CONTROL
See detailed explanations in the chapter
NEW ICE AGE COMPACT KW CONTROL.
• Electronic screen video graphical recorder based on microprocessor
technology to be a small process supervisor (offered upon request for
different models and configurations, also conforming to FDA 21 CFR
part 11)
• Additional RTD Pt 100 Ohm sensor to connect to an external system
for the acquisition and recording of T values, such as KW SPY® or similar
(1 per container)
• Additional RTD Pt 100 Ohm sensor complete with 4-20 mA
converter mounted on a DIN bar to connect to an external recording
system (1 per container)
• Closure of the command panel in plastic material
• Internal/external through-hole (1 per container)
• Remote alarm device
• Cryogenic gloves
• Voltage regulator
• Application of the NIA control
system (1 per container)
ACCESSORIES:
• Pivoting/Fixed wheel kit
• Door open alarm (1 per compartment)
• Visual/Sound power failure alarm, 12-VDC power supply with
backup battery (1 per compartment, estimated duration of 3 years)
• Disk recorder with weekly cycle, two traces and 1,5 VDC power
supply.
• (2-channel) strip-chart electronic recorder at 230 VA
On
this
equipment
series it is possible to
carry
out
activities
such as I.Q. (Installation
Qualification)
and
O.Q.
(Operational
Qualification);
please contact KW’s
Commercial
Office
for an assessment of
the costs entailed by
such activities. KW is
also available for ISO
calibration certification
services
for
the
comparison of primary
SIT samples.
• KW introduce the new Electronic Controller TOUCH
RECORDER KW integrated in the KW panel, with battery
power supply and Pt 100 probe.
With the option of independent high/low T alarms and
Energy Fault alarm, which can be remote managed.
KRFDE 2711X
USB data logger with own compatible software and data
storage on personal or main computer.
Model
Capacità litri
Frigo - freezer
Misure
esterne (lxpxh)
Ripiani (n)
Vano frigo
Cassetti (n)
Vano freezer
Potenza media
assorbita in Kw
Peso (Kg.)
KRFDE2711
275-110
60x63x218
4
3
0,16
100
KRFDE2711 X
275-110
60x63x218
4
3
0,16
100
K W A P PA R E C C H I S C I E N T I F I C I
85
= min./max temperature alarm
Contacts:
Managing Director: management@kwkw.it
Technical Production Manager: technician@kwkw.it
Sales Manager: sales@kwkw.it
Tender Commercial Office: commerciale@kwkw.it
International Sales Manager: expdpt@kwkw.it
Technical Support & Spare Parts: assistenza@kwkw.it
Service line: service@kwkw.it
Delivery Office: delivery@kwkw.it
Administration: administration@kwkw.it
= Internal light
= DATA LOGGER function
= energy failure alarm
= Alarm broken down probe
= Open door alarm
= Lock
= Disaster Ricovery / Safety Control
= Temperature recorder
KW Apparecchi Scientifici, taking into consideration the non change of the
principal characteristics of products, has the right o carry out modifications on
its products, without prior notice, that it deems necessary.
This catalogue is on an informative and illustrative basis, the quality of the
images and the contents may have come under alterations during printing
= Wheels
Cold storage
equipment
Incubation and
microbiological
test equipment
Ovens, drying
and sterilizing
equipment
ISO 9001:2008
180
Maintenance,
IQ,OQ,PQ, hardware
and software
for equipment
management
ISO 13485:2003
Medical
devices for
transfusion centres
ISO 14001:2004
OHSAS 18001 2007
KW APPARECCHI SCIENTIFICI s.r.l. • 53035 Monteriggioni (SI) • Via della Resistenza, 119 • Tel. +39 0577 309143 / 309145
www.kwkw.it • kw@kwkw.it • sales@kwkw.it
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