JULABO KRC 180 User Manual
English
1.951.6610-V2 06/14
Operating Manual
Refrigerators for chemicals
KRC 50
KRC 180
19516610-V2.doc Print dat e:13.06.14
JULABO GmbH
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 7823 / 24 91
info@julabo.de
www.julabo.de
Congratulations!
You have made an excellent choice.
JULABO thanks you for the trust you have placed in us.
This operating manual has been designed to help you gain an understanding of the operati on
and possible applicati ons of our immersion coolers. For optimal utilization of all functions, we
recommend that you thoroughly study this manual prior to beginning operation.
The JULABO Quality Management System
Temperature control devices for research and industry are developed,
produced, and distributed according to the requirements of ISO 9001
and ISO 14001. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the immersion cooler and accessories and inspect them for possible transport
damage. Damage should be reported to the responsible carrier, railway, or postal authority,
and a damage report should be requested. These instructions must be followed fully for us to
guarantee our full support of your claim for protecting against loss from concealed damage.
The form required for filing such a claim will be provided by the carrier.
Printed in Germany Changes without prior notifi cation reserved
Important: keep operating manual for future use
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TABLE OF C ONTENTS
1. INTENDED USE ................................................................................................. 4
1.1. DESCRIPTION ......................................................................................... 4
2. OPERATOR RESPONSIBILITY – SAFETY INSTRUCTIONS ............................ 5
2.1. DISPOSAL .................................................................................................. 6
3. SAFETY NOTES FOR THE USER ..................................................................... 7
3.1. EXPLANATION OF SAFETY NOTES.................................................................. 7
3.2. EXPLANATION OF OTHER NOTES ................................................................... 7
3.3. SAFETY INSTRUCTIONS ................................................................................ 7
4. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS ............................. 9
5. OPERATION ..................................................................................................... 10
5.1. INSTALLATION ........................................................................................... 10
5.2. POWER CONNECTION / SWITCHING ON ....................................................... 10
6. CHANGING THE DOOR OPENING SIDE ........................................................ 11
7. SAFETY INSTALLATIONS ............................................................................... 13
8. CLEANING / REPAIRING THE UNIT ............................................................... 14
9. ALARM RELAY ................................................................................................. 15
10. ACCESSORIES ................................................................................................ 15
11. TECHNICAL DATA ........................................................................................... 16
12. EC DECLARATION OF CONFORMITY ........................................................... 17
13. WARRANTY CONDITIONS .............................................................................. 19
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Intended use
1. Intended use
JULABO refrigerators for chemicals are especially designed for cooling and storing
hazardous substances at a working temperature range of -2 °C to +12 °C.
JULABO refrigerator s for chemicals are not suitable for direct temperature
control of foods and semi-luxury foods.
1.1. DESCRIPTION
Chemicals should not be stored in commercially available refrigerators, which are neither
equipped with suitable, self-protecting control circuits nor guarded against overheating of the
cooling compressor.
JULABO refrigerators for chemicals are especially designed for cooling and storing
hazardous substances.
They are available i n two sizes and provide the following advantages:
Interior free of ignition source
LED display of actual/selected temperature value
Removable control unit
Self-protecting control circuits
Seperate control and safety circuit
Bipolar shutoff in the event of a functional disturbance
Alarm output (with floating DPDT contact)
The KRC 50 and KRC 180 refrigerators for chemicals have been developed in research
laboratories for enhanced safety.
They are comprised of:
1. Electronics Module
Power supply with control and alarm circuits, permanently mounted on the rear of the
refrigerator.
2. Control Unit
Operating controls and display, with connecting cable to the electronics module; with
magnetic foil on rear; for mounting to refrigerator door or in special holder pr ovided.
Functional Description
Temperature control is performed with a two-point control circuit. A PTC sensor in the
refrigerator interior is employed for temperature control and measurement.
The sensor and the selected temperature value are monitored by the control circuit with a
differential measurement technique.
An additional PTC sensor is employed for safety temperature measurement, monitoring the
capsule temperature of the compressor.
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2. Operator responsibility – Safety instructions
The products of JULABO ensure safe operation when installed, operated, and maintained
according to common safety regulations. This section explains the potential dangers that may
arise when operating the refrigerators for chemicals and also specifies the most important
safety precautions to preclude these dangers as far as possible.
The operator is responsible for the qualification of the personnel operating the units.
The personnel operating the units should be regularly instructed about the dangers involved
with their job activities as well as measures to avert these dangers.
Make sure all persons tasked with operating, installing, and maintaining the unit have read
and understand the safety information and operating instructions.
When using hazardous materials or materials that could become hazardous, the refrigerators
for chemicals may be operated only by persons who are absolutely familiar with these
materials and the circulator. These persons must be fully aware of possible risks.
If you have any questions concerning the operation of your unit or the information in this
manual, please contact us!
Contact JULABO GmbH
Eisenbahnstraße 45
77960 Seelbach / Germany
Safety instructions for the operator:
Avoid strikes to the housing, vibrations, damage to the operating-element panel (buttons,
display), and contamination.
Make sure the product is checked for proper condition regularly (depending on the conditions
of use). Regularly check (at least every 2 years) the proper condition of the mandatory,
warning, prohibition and safety labels.
Make sure that the mains power supply has low impedance to avoid any negative effects on
the instruments being operated on the same mains.
Permissible ambient temperature: max. 35 °C, min. 5 °C.
Permissible relative humidity: 50% (40 °C).
Do not store the unit in an aggressive atmosphere. Protect the unit from contamination.
Do not expose the unit to sunlight.
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 7823 / 24 91
info@julabo.de
www.julabo.de
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Operator responsibility – Safety instructions
of the waste.
municipal waste is not permitted!
2.1. Disposal
In the second stage this unit contains the flammable refrigerant R600a.
Therefore only qualified personnel from Julabo are authorized to dispose
Valid in EU countries
See the current official journal of the European Union – WEEE directive.
Directive of the European Parliament and of the Council on waste electrical
and electronic equipment (WEEE).
This directive requir es electrical and electronic equi pment marked with a
crossed-out trash can to be disposed of separately in an environmentally
friendly manner.
Contact an authorized waste management company in your country.
Disposal with household waste (unsorted waste) or similar collections of
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