Lauda MC 250 User manual

Operating instructions
The right temperature worldwide
Microcool
MC 250, MC 600, MC 1200, MC 1200 W
Circulation chiller

Translation of the original operating instructions
LAUDA DR. R. WOBSER GMBH & CO. KG
Postfach 1251
97922 Lauda-Königshofen
Germany
Phone: [phone] / 503-0
Fax: [phone] / 503-222
E-Mail: [email protected]
Internet: www.lauda.de
YAWE0033 V02REV60 10/022/2014 ©LAUDA 2013
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Table of contents
1 Safety.................................................................................................................................................... 6
1.1 General safety instructions.......................................................................................................... 6
1.2 Intended use................................................................................................................................ 7
1.3 Foreseeable misuse.................................................................................................................... 7
1.4 Modifications to the device.......................................................................................................... 7
1.5 Heat transfer liquid...................................................................................................................... 7
1.6 Materials...................................................................................................................................... 8
1.7 Hoses.......................................................................................................................................... 8
1.8 Application area........................................................................................................................... 8
1.9 Personnel qualification................................................................................................................ 8
1.10 Personal protective equipment.................................................................................................... 9
1.11 Structure of safety instructions.................................................................................................... 9
2 Unpacking.......................................................................................................................................... 11
3 Design and function.......................................................................................................................... 12
3.1 Device types.............................................................................................................................. 12
3.2 Design of the circulation chiller.................................................................................................. 13
3.3 Controls..................................................................................................................................... 17
3.3.1 Mains power switch.................................................................................................... 17
3.3.2 Display buttons........................................................................................................... 18
3.4 Function elements..................................................................................................................... 19
3.4.1 LEDs for function display........................................................................................... 19
3.4.2 Hydraulic circuit.......................................................................................................... 19
3.4.3 Manometer................................................................................................................. 20
3.4.4 Level indicator............................................................................................................ 20
3.4.5 Refrigeration unit........................................................................................................ 20
3.4.6 Interfaces................................................................................................................... 21
3.5 Rating plate............................................................................................................................... 22
3.6 Serial number............................................................................................................................ 22
4 Before commissioning...................................................................................................................... 23
4.1 EMC classification..................................................................................................................... 23
4.2 Device Placement..................................................................................................................... 24
4.3 External consumer.................................................................................................................... 25
4.3.1 Hoses......................................................................................................................... 25
4.3.2 Connecting external consumer.................................................................................. 27
4.4 Cooling water............................................................................................................................ 27
4.4.1 Cooling water requirements....................................................................................... 27
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4.4.2 Connecting cooling water........................................................................................... 29
4.5 RS232 interface......................................................................................................................... 30
4.5.1 Cable and interface test RS232................................................................................. 30
4.6 Alarm output 12N...................................................................................................................... 30
5Commissioning.................................................................................................................................. 32
5.1 LAUDA heat transfer liquids...................................................................................................... 32
5.2 Filling device with heat transfer liquid........................................................................................ 33
5.3 Establishing power supply......................................................................................................... 34
5.4 Switching on the device............................................................................................................. 35
5.5 Refilling heat transfer liquid....................................................................................................... 35
5.6 Setting pump pressure.............................................................................................................. 36
6 Operation............................................................................................................................................ 38
6.1 Switching on the device............................................................................................................. 35
6.2 Default display and menu items................................................................................................ 38
6.3 Screen displays......................................................................................................................... 40
6.4 Specifying the setpoint temperature.......................................................................................... 40
6.5 Restricting temperature limit values.......................................................................................... 41
6.6 Configuring timer....................................................................................................................... 42
6.7 RS232 interface......................................................................................................................... 44
6.7.1 Configuring RS232 interface...................................................................................... 44
6.7.2 Protocol...................................................................................................................... 45
6.7.3 Write commands........................................................................................................ 46
6.7.4 Read commands........................................................................................................ 46
6.7.5 Error messages.......................................................................................................... 47
6.8 Configuring alarm output........................................................................................................... 47
6.9 Inputting offset of the temperature sensor................................................................................. 48
6.10 Restoring the factory settings.................................................................................................... 49
7 Maintenance....................................................................................................................................... 50
7.1 General safety instructions........................................................................................................ 50
7.2 Maintenance intervals............................................................................................................... 50
7.3 Cleaning the device................................................................................................................... 51
7.4 Cleaning air-cooled condenser.................................................................................................. 51
7.5 Cleaning the water filter............................................................................................................. 52
7.6 Decalcification of the cooling water circuit................................................................................. 52
7.7 Checking the heat transfer liquid............................................................................................... 53
8 Faults.................................................................................................................................................. 54
8.1 Alarms, errors and warnings..................................................................................................... 54
8.2 Alarms overview........................................................................................................................ 55
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8.3 Warnings overview.................................................................................................................... 55
9 Decommissioning.............................................................................................................................. 57
9.1 Draining the device.................................................................................................................... 57
9.2 Draining condenser (only water-cooled devices)...................................................................... 57
10 Disposal.............................................................................................................................................. 59
10.1 Disposing of refrigerant............................................................................................................. 59
10.2 Device disposal......................................................................................................................... 59
10.3 Disposing of packaging............................................................................................................. 59
11 Technical data.................................................................................................................................... 60
11.1 General data.............................................................................................................................. 60
11.2 Refrigeration unit....................................................................................................................... 61
11.3 Hydraulic circuit......................................................................................................................... 62
11.4 Voltage-dependent data............................................................................................................ 62
12 General............................................................................................................................................... 63
12.1 Copyright................................................................................................................................... 63
12.2 Technical changes.................................................................................................................... 63
12.3 LAUDA contact.......................................................................................................................... 63
12.4 EC conformity............................................................................................................................ 63
13 Index................................................................................................................................................... 65
Table of contents
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1 Safety
1.1 General safety instructions
The equipment must only be operated for the intended use
under the conditions stated in this operating manual. Any other
type of operation is considered to be not-intended use and can
impair the protection provided by the device.
The operating manual is part of the device. The information in
this operating manual must therefore be available in close
vicinity to the device. Also store this copy of the operating
manual carefully.
If you lose this operating manual, contact the LAUDA
Constant Temperature Equipment service. The contact
details can be found in Ä Chapter 12.3 ‘LAUDA contact’
on page 63.
Use of the device results in hazards from high or low temperatures,
fire and from the use of electrical energy. The hazards of the
device must be eliminated as much as possible by the design in
accordance with the appropriate standards. Residual hazards are
reduced using any of the following measures:
If relevant, there are safety devices for the device. These
devices are essential for the safety of the device. Their func-
tionality must be ensured with appropriate maintenance activi-
ties.
The safety devices of the device are described in this "Safety"
chapter.
If relevant, there are warning symbols on the device. These
symbols must always be observed.
The warning symbols on the device are described in this
chapter “Safety”.
There are safety instructions in this operating manual. These
instructions must always be observed.
There are additional specific requirements for the personnel
and for the personal protective equipment.
These requirements are described in this "Safety" chapter.
An overview of the authorised personnel and the protec-
tive equipment can be found in
Ä Chapter 1.9 ‘Per-
sonnel qualification’ on page 8 and
Ä Chapter 1.10
‘Personal protective equipment’ on page 9.
Further information about the general structure of safety
instructions can be found in
Ä Chapter 1.11 ‘Structure
of safety instructions’ on page 9.
Safety
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1.2 Intended use
The present device is exclusively permitted to be used for tem-
pering and delivering non-combustible heat transfer liquids in a
closed circuit.
The following applications are considered to be not-intended:
medical applications
in potentially explosive areas
for tempering foodstuffs
with a glass reactor without overpressure protection
1.3 Foreseeable misuse
Misuse of the device must always be prevented.
Among other things, the following uses are considered to be fore-
seeable misuse:
Operation of the device without heat transfer liquid
Incorrect connection of hoses
Placement of the device on a tabletop surface, only permitted
for MC 600 and MC 1200 (W)
Setting an incorrect pump pressure
1.4 Modifications to the device
Any technical modifications to the machine are prohibited. Service
works may be carried out only by the LAUDA Constant Tem-
perature Devices service or one of the service partners authorized
by LAUDA.
1.5 Heat transfer liquid
The device is exclusively designed for nonflammable heat
transfer liquids in Class I according to DIN 12876-1.
Heat transfer liquids are used for the temperature control. Only
LAUDA heat transfer liquids are approved for the device.
LAUDA heat transfer liquids are heat transfer liquids that have
been tested and approved by the company LAUDA DR. R.
WOBSER GMBH & CO. KG.
Intended use
Non-intended use
Safety
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In each case, the heat transfer liquids cover a specific tem-
perature range. This temperature range must match the tem-
perature range of your application.
The use of heat transfer liquids can cause hazards from high or
low temperatures and fire if certain temperature thresholds are
exceeded or undercut or if the container breaks and there is a
reaction with the heat transfer liquid .
The heat transfer liquid safety data sheet specifies all possible
hazards and appropriate safety measures for handling the
liquid. The safety data sheet must therefore be consulted for
the intended use of the device.
1.6 Materials
All parts coming into contact with the heat transfer liquid are made
of high quality materials suitable for the operating temperature.
Stainless steel and temperature-resistant plastics are used.
1.7 Hoses
Only LAUDA hoses are permitted to be used for the external
hydraulics circuit. LAUDA hoses are hoses that are approved by
LAUDA DR. R. WOBSER GMBH & CO. KG. When selecting suit-
able hoses for the application, the permissible temperature range
and the maximum permissible pressure must be particularly
observed.
1.8 Application area
The device is exclusively permitted to be used in the following
areas.
Commercial area
Indoor use, no outdoor installation
Ambient temperatures from 5 to 40 °C
1.9 Personnel qualification
Operating personnel
Operating personnel are employees that have been instructed by
technical staff in the intended use of the device according to the
operating manual.
Safety
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1.10 Personal protective equipment
Protective clothing
Protective clothing is required for certain activities. This protective
clothing must comply with the legal requirements for personal pro-
tective equipment. Protective clothing should have long sleeves.
Safety footwear is additionally required.
Protective gloves
CE protective gloves are required for certain activities. These pro-
tective gloves must comply with the legal requirements for personal
protective equipment of the European Union.
Protective goggles
Protective goggles are required for certain activities. These protec-
tive goggles must comply with the legal requirements for personal
protective equipment of the European Union.
1.11 Structure of safety instructions
A safety instruction of the type "Danger" indicates an immedi-
ately hazardous situation.
This results in death or severe, irreversible injuries if the
safety instruction is disregarded.
DANGER!
Type and source
Consequences in the case of non-compliance
Measure 1
Measure…
A safety instruction of the type "Warning" indicates a poten-
tially hazardous situation.
This can result in death or severe, irreversible injuries if the
safety instruction is disregarded.
WARNING!
Type and source
Consequences in the case of non-compliance
Measure 1
Measure…
Danger
Warning
Safety
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A safety instruction of the type "Caution" indicates a poten-
tially hazardous situation.
This can result in minor, reversible injuries if the safety
instruction is disregarded.
CAUTION!
Type and source
Consequences in the case of non-compliance
Measure 1
Measure…
A"notice" warns about possible property or environmental damage.
NOTICE!
Type and source
Consequences in the case of non-compliance
Measure 1
Measure…
Caution
Notice
Safety
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2 Unpacking
DANGER!
Transport damage
Electric shock
Inspect the device for transport damage before
commissioning.
Never put the device into operation if you have dis-
covered any transport damage.
Personnel: Operating personnel
1. Unpack the device.
Keep the original packaging of the device for later
transport.
2. Inspect the device and the accessories immediately after
delivery for completeness and transport damage.
If there is unexpected damage to the device or
accessories, inform the carrier immediately so that
a damage report is produced and a check of the
transport damage can be made. Also inform
LAUDA Constant Temperature Equipment Service
immediately. Contact details can be found in
Ä Chapter 12.3 ‘LAUDA contact’ on page 63.
Accessories included as standard
Device type Designation Quantity Catalogue
number
MC 600, MC 1200 (W) ¾" olive with ¾" union nut 2 EOA 004
All equipment Operating manual 1 --
Unpacking
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3 Design and function
3.1 Device types
The type designation of the equipment is composed of the fol-
lowing elements.
Element Description
MC Microcool
<number>, e.g. 600 Specification of the cooling capacity in
watts
W Device with water cooling
This specification in the device type is
optional. It identifies water-cooled equip-
ment.
Device type Description
MC 250 Air-cooled tabletop device with a cooling
capacity of 250 watts
MC 600 Air-cooled floor-standing device with a
cooling capacity of 600 watts. The pump
pressure can be adjusted using a bypass
adjustment wheel.
MC 1200 Air-cooled floor-standing device with a
cooling capacity of 1200 watts. The pump
pressure can be adjusted using a bypass
adjustment wheel.
MC 1200 W Water-cooled floor-standing device with a
cooling capacity of 1200 watts. The pump
pressure can be adjusted using a bypass
adjustment wheel.
Available device types
Design and function
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Fig. 2: Overview of the rear side
1 Pump connection, outlet
2 Overflow connection
3 Pump connection, return
4 Rating plate
5 Drain plug
6 RS232 interface
7 Alarm output
8 Mains cable
9 Ventilation openings
Rear side MC 250
Design and function
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3.2 Design of the circulation chiller
Fig. 1: Overview of the front side
1 Filler nozzle with cover
2 Level indicator
3 Control panel
4 Front panel with ventilation openings
5 Four support feet
Front side MC 250
Design and function
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Fig. 3: Overview of the front side
1 Filler nozzle with cover
2 Control panel
3 Level indicator
4 Manometer
5 Front panel with ventilation openings
6 Four castors with locking brakes
Front side MC 600, MC 1200 (W)
Design and function
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Fig. 4: Overview of the rear side
1 Pump connection, outlet
2 Bypass adjustment wheel
3 Pump connection, return
4 Overflow connection
5 Rating plate
6 Drain plug
7 RS232 interface
8 Alarm output
9 Mains cable
10 Ventilation openings
Rear side MC 600, MC 1200 (W)
Design and function
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Fig. 5: Control panel
1 Display
2 LEDs
3 Display buttons
4 Mains power switch
3.3 Controls
3.3.1 Mains power switch
The mains power switch can be put in the following positions:
In position [I], the device is switched on.
In position [O], the device is switched off.
Control panel
Design and function
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3.3.2 Display buttons
Fig. 6: Display buttons
1 UP arrow button
2 ENTER button
3 DOWN arrow button
Functions in the display of the device can be controlled using the
display buttons.
A selection in the display can be confirmed with the ENTER
button.
The UP and DOWN arrow buttons can be used to navigate in
the display.
Design and function
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3.4 Function elements
3.4.1 LEDs for function display
Fig. 7: LEDs
1 Yellow LED
2 Blue refrigeration LED
3 Red error LED
Each device has three LEDs with the following functions:
The yellow glycol LED lights if Kryo 30 is necessary as heat
transfer liquid.
The blue refrigeration LED indicates whether the refrigeration
unit is active.
The red error LED lights in the event of device faults.
3.4.2 Hydraulic circuit
The hydraulic circuit designates the circuit through which the heat
transfer liquid flows.
The circuit basically consists of the following components:
internal storage bath with heat transfer liquid
pump for conveying the heat transfer liquid into the external
consumer via the pump connections
Starting with MC 600, devices are equipped with an adjustable
bypass to be able to adapt the pump pressure to the require-
ments of the external consumer.
Hydraulic circuit
Design and function
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The devices are equipped with a magnetically coupled pressure
pump.
Further information about the technical data of the pump
and the pump characteristic curve can be found
Ä Table on page 62.
3.4.3 Manometer
The device types with bypass have a manometer for reading the
set pump pressure. The pump pressure is regulated using the
bypass adjustment wheel on the rear side.
3.4.4 Level indicator
The fill level of the heat transfer liquid in the circuit can be read
using the level indicator.
The top arrow indicates the maximum liquid level of the
machine.
The bottom arrow indicates the minimum liquid level of the
machine.
Fig. 9: Level indicator
1 Maximum level
2 Minimum level
3.4.5 Refrigeration unit
The refrigeration unit includes the following components:
Pump
Fig. 8: Manometer
Design and function
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