Lauda PROLINE P 5 C User manual

Operating instructions
PROLINE heating thermostat
Thermostats with PowerAdapt system
Heating thermostats P 5 C
Calibration thermostat PJ 12 C, PJL 12 C
Clear view thermostats PV 15 C, PVL 15 C, PV 24 C, PVL 24 C, PV36 C
Bridge thermostats PB C, PBD C
Read the instructions before starting all work!

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Manufacturer
LAUDA DR. R. WOBSER GMBH & CO. KG
Laudaplatz 1
97922 Lauda-Königshofen
Germany
Phone: [phone]
Fax: [phone]
E-Mail [e-mail]
Internet https://www.lauda.de
Q4DA-E_13-009-DE-01
Translation of the original operating instructions
English / Release 02/2022 A
Valid from:
Software of Operating system (Command) version 3.45
Software of Control system (Master) version 2.13
Software of Protection Safety system (Master) version 2.07
Software of Analogue IO moduleinterface version 3.14
Software of Serial IO -module version 3.22
Software of contact Digital IOI/0 module version 3.14
Software of Solenoid valve version 3.06
Software of Ethernet module version 1.23
Software of EtherCAT module version 1.06

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Prefixed safety notes
Before operating the equipment please read carefully all the instructions and safety notes in Section 1.
If you have any questions please phone us!
Follow the instructions on setting up, operation etc. This is the only way to avoid incorrect operation of
the equipment and to ensure full warranty protection.
Transport the equipment with care!
Equipment and its internal parts can be damaged:
by dropping,
by shock.
Equipment must only be operated by technically qualified personnel!
Never operate the equipment without the heat transfer liquid!
Do not start up the equipment if:
it is damaged or leaking,
cable (not only supply cable) is damaged.
Switch off the equipment and pull out the mains plug:
for servicing or repair,
moving the equipment!
Drain the bath before moving the equipment!
Do not carry out any technical changes on the device! (6).
Have the equipment serviced or repaired by properly qualified personnel only!
The Operating Instructions include additional safety notes, which are identified by a triangle with an exclamation mark.
Carefully read the instructions and follow them accurately! Disregarding the instructions may have serious conse-
quences, such as damage to the equipment, damage to property or injury to personnel!
We reserve the right to make technical alterations!

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Content
Prefixed safety notes.....................................................................................................................................................................3
1SAFETY INFORMATION ..............................................................................................................................................................7
1.1 GENERAL SAFETY INFORMATION.............................................................................................................................................. 7
1.2 OTHER SAFETY INFORMATION..................................................................................................................................................8
2BRIEF OPERATING INSTRUCTIONS .......................................................................................................................................9
3CONTROLS AND FUNCTIONAL ELEMENTS..................................................................................................................... 11
4DEVICE DESCRIPTION............................................................................................................................................................. 15
4.1 ENVIRONMENTAL CONDITIONS............................................................................................................................................. 15
4.2 DEVICE TYPES.......................................................................................................................................................................... 15
4.3 VARIOFLEX PUMP.................................................................................................................................................................... 15
4.4 MATERIALS .............................................................................................................................................................................. 16
4.5 TEMPERATURE DISPLAY,CONTROL AND SAFETY CIRCUIT..................................................................................................... 16
4.6 PROGRAMMER AND RAMP FUNCTION .................................................................................................................................. 17
4.7 INTERFACES ............................................................................................................................................................................ 17
4.8 INTERFACE MODULES (ACCESSORIES).................................................................................................................................. 18
4.9 HEATER RATING AND POWER CONSUMPTION FROM THE MAINS ........................................................................................ 18
5UNPACKING................................................................................................................................................................................ 19
6PREPARATION ............................................................................................................................................................................ 20
6.1 ASSEMBLY AND SITTING .......................................................................................................................................................... 20
6.2 EXPANDING THE WORKING TEMPERATURE RANGE WITH EXTERNAL COOLING................................................................... 21
6.3 FILLING AND DRAINING.......................................................................................................................................................... 23
6.4 HEAT TRANSFER LIQUIDS AND HOSES................................................................................................................................... 24
6.5 CONNECTING EXTERNAL LOADS ........................................................................................................................................... 26
7STARTING UP............................................................................................................................................................................... 27
7.1 MAINS CONNECTION ............................................................................................................................................................. 27
7.2 SWITCHING ON ....................................................................................................................................................................... 27
7.3 SWITCHING OFF /STANDBY.................................................................................................................................................... 29
7.4 KEY FUNCTIONS...................................................................................................................................................................... 29
7.4.1 General key functions and pilot lamps......................................................................................................................... 29
7.4.2 Changing window information...................................................................................................................................... 33
7.4.3 Locking the keyboard.................................................................................................................................................... 34
7.5 MENU STRUCTURE:"MASTER" ............................................................................................................................................... 36
7.6 MENU STRUCTURE:COMMAND REMOTE CONTROL ........................................................................................................... 37
7.7 IMPORTANT SETTINGS ............................................................................................................................................................. 38
7.7.1 Temperature setpoint setting....................................................................................................................................... 38
7.7.2 Displaying the actual external temperature ................................................................................................................ 40
7.7.3 Setting pump power or standby ................................................................................................................................... 41
7.7.4 Activating external control ........................................................................................................................................... 42
7.7.5 Current consumption from the mains......................................................................................................................... 43

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7.7.6 Setting the date and time ............................................................................................................................................. 45
7.7.7 Display resolution setting.............................................................................................................................................. 45
7.8 SPECIAL SETTINGS ................................................................................................................................................................... 46
7.8.1 Setpoint resolution ........................................................................................................................................................ 46
7.8.2 Defining the type of start mode................................................................................................................................... 46
7.8.3 Defining temperature limits.......................................................................................................................................... 48
7.8.4 Setpoint offset operating mode ................................................................................................................................... 49
7.8.5 Restoring works settings............................................................................................................................................... 51
7.8.6 Setting the volume of the acoustic signals .................................................................................................................. 53
7.8.7 Entering the offset of the internal temperature probe .............................................................................................. 54
7.8.8 Restoring the works setting of the internal temperature-probe offset.................................................................... 55
7.8.9 Entering the offset of the external temperature probe ............................................................................................. 56
7.8.10 Restoring the works setting of the external temperature-probe offset................................................................... 57
7.9 GRAPHICAL DISPLAY OF TEMPERATURE MEASUREMENTS .................................................................................................... 58
7.10 PROGRAMMER (PGM)...................................................................................................................................................... 60
7.10.1 Program example........................................................................................................................................................... 60
7.10.2 Selecting and starting the program (Start, Hold, Stop)............................................................................................. 62
7.10.3 Interrupting, continuing or terminating the program (Hold, Continue, Stop) ........................................................ 63
7.10.4 Creating or modifying a program (Edit)...................................................................................................................... 64
7.10.5 Defining the number of program loops (Loops) ......................................................................................................... 69
7.10.6 Viewing the program sequence as a graph (Graph) ................................................................................................... 69
7.10.7 Obtaining information on a program (Info) ................................................................................................................ 70
7.11 RAMP FUNCTION................................................................................................................................................................ 71
7.12 TIMER FUNCTION................................................................................................................................................................ 72
7.13 CONTROL PARAMETERS..................................................................................................................................................... 74
7.13.1 Internal control variable (integral measurement probe) ............................................................................................ 74
Proven settings for control parameters and pump (Internal control).................................................................................... 75
7.13.2 External control variable (External measurement probe).......................................................................................... 76
7.13.2.1 Proven settings for control parameters and pump (external control): ............................................................ 77
7.13.2.2 Steps for setting the control parameters for external control.......................................................................... 77
7.13.3 Internal and external control parameter sets .............................................................................................................. 79
7.14 ALARMS,WARNINGS AND ERRORS .................................................................................................................................. 80
7.14.1 Overtemperature protection and checking ................................................................................................................ 80
7.14.2 Low-level alarm and low-level checking...................................................................................................................... 82
7.14.3 High-level settings ........................................................................................................................................................ 83
Master.......................................................................................................................................................................................... 83
7.14.4 High-level warning or alarm ......................................................................................................................................... 84
7.14.5 Pump-motor supervision: Overload or blockage ....................................................................................................... 85
7.14.6 Pump-motor supervision: Dry running ....................................................................................................................... 85
7.14.7 Fault list “Alarms and Warnings”.................................................................................................................................. 86
8INTERFACE MODULES............................................................................................................................................................. 89
8.1 INSTALLING MODULES ............................................................................................................................................................ 89
8.2 MENU STRUCTURE FOR ALL MODULES.................................................................................................................................. 90
8.3 RS 232/485 SERIAL INTERFACE.......................................................................................................................................... 91
8.3.1 Connecting cables and interface test RS 232........................................................................................................... 91
8.3.2 Protocol RS 232........................................................................................................................................................... 92

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8.3.3 Connecting cable RS 485 ........................................................................................................................................... 92
8.3.4 Protocol RS 485 .......................................................................................................................................................... 93
8.3.5 Write commands (Data commands to the thermostat)............................................................................................ 93
8.3.6 Read commands (Data requested from the thermostat).......................................................................................... 95
8.3.7 Error messages .............................................................................................................................................................. 97
8.3.8 Driver software for LABVIEW® ................................................................................................................................. 97
8.4 ANALOGUE MODULE.............................................................................................................................................................. 98
8.5 CONTACT MODULE................................................................................................................................................................. 99
8.5.1 Contact module LRZ 915 with three inputs and three outputs............................................................................... 99
8.5.2 Namur-Contact module LRZ 914 with only one input and one output...............................................................100
9MAINTENANCE ........................................................................................................................................................................101
9.1 CLEANING.............................................................................................................................................................................101
9.2 DEVICE STATUS .....................................................................................................................................................................101
9.2.1 Interrogating the device type .....................................................................................................................................101
9.2.2 Software Version.........................................................................................................................................................101
9.2.3 Serial numbers .............................................................................................................................................................101
9.2.4 Device data..................................................................................................................................................................102
9.2.5 Fault memory ..............................................................................................................................................................102
9.3 SERVICING,REPAIR AND DISPOSAL INFORMATION ............................................................................................................103
9.3.1 Servicing.......................................................................................................................................................................103
9.3.2 Servicing intervals........................................................................................................................................................104
9.3.3 Testing the heat transfer liquid...................................................................................................................................104
9.3.4 Repair information ......................................................................................................................................................104
9.3.5 Disposal information ...................................................................................................................................................104
9.3.6 Disposal of the packaging ...........................................................................................................................................105
9.4 SERVICE,ORDERING REPLACEMENT PARTS AND RATING LABEL........................................................................................105
10 ACCESSORIES.......................................................................................................................................................................106
11 TECHNICAL DATA AND DIAGRAMS .............................................................................................................................108
12 DECLARATION OF CONFORMITY.................................................................................................................................115
13 INDEX ......................................................................................................................................................................................116
Explanation of signs :
Caution:
This sign is used where there may be injury to personnel if a
recommendation is not followed accurately or is disregarded.

Note:
Here special attention is drawn to some aspect. May include
reference to danger.

Reference
Refers to other information in different sections.

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1Safety information
1.1 General safety information
A laboratory thermostat heats and circulates liquids according to specified parameters. This involves hazards due to
high temperatures, fire and general hazards due to the application of electrical energy.
The user is largely protected by the application of relevant standards.
Further hazard sources may arise due to the type of tempering medium, e.g. by exceeding or undercutting certain
temperature thresholds or by the breakage of the container and reaction with the heat transfer liquid.
It is not possible to consider all eventualities. They remain largely subject to the judgment and responsibility of the op-
erator.
The equipment may only be used as prescribed and as described in these operating instructions. This includes operation
by instructed specialist personnel.
The equipment is not rated for use under medical conditions according to DIN EN 60601-1 or IEC 601-1.
Classification according with EMC requirements
Device
Immunity
requirements
Emissions class
Customer power supply
Heating thermostats
Proline
Table 2 (industrial) in
accordance with
DIN EN 61326-1
Emissions class B in
accordance with CISPR 11
Worldwide
No limitation
Instructions for Class A digital devices, USA:
“This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of
the FCC (Federal Communication Commission) Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference at his own expense.”
“This device complies with Part 15 of the FCC (Federal Communication Commission) Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.”
Instructions for Class A digital devices, Canada:
“This Class A digital apparatus complies with Canadian ICES-003” (ICES = Interference Causing Equipment Stand-
ards).
« Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada ».

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1.2 Other safety information
Only connect equipment to PE grounded mains sockets.
At higher operating temperatures, parts of the bath cover can reach surface temperatures exceeding 70 °C. Be
careful when touching it Risk of burning!
Use suitable hoses (6.4).
Secure hose against slippage with the aid of hose clips. Avoid kinks in the hoses.
Check hoses from time to time for any possible material fatigue.
Thermal medium hoses and other hot parts must not come into contact with the mains cable.
With the use of thermostats as circulating thermostats hot liquid can be emitted when the hose breaks, presenting a
hazard to persons and material.
If no external load is connected, the pump outflow must be closed (use screw plugs) and the bypass valve must be
set to "internal" (4.3).
Take into account the thermal expansion of the heat transfer oils with increasing bath temperature.
Irritant vapors may develop, depending on the heat transfer liquid and operating mode used. Always ensure that the
vapors are adequately extracted. Use the bath cover.
When changing the heat transfer liquid from water to a thermal transfer medium for temperatures above 100 °C,
carefully remove all water residues, including from the hoses and loads. When doing this, also open the screw plugs
(HKN 065) (3) of the pump outputs and inputs and blow compressed air through all the pump outputs and in-
puts.With higher temperature there is the risk of burning due to delay in boiling!
Withdraw the mains plug before cleaning, maintenance or moving the thermostat.
Repairs in the control section must only be carried out by specialist personnel.
Figures of temperature constancy and display accuracy apply under normal conditions according to DIN 12876.
Electromagnetic high frequency fields may in special cases lead to unfavourable values. Safety is not impaired.
The following action may start the thermostat unintentionally from the standby mode:
Previously activated timer mode (7.12),
"Start" command via interfaces (8).

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2Brief operating instructions
These brief instructions shall give you the possibility to operate the unit quickly. For safe operation of
the unit, it is absolutely necessary to read carefully all the instructions and safety notes!
1. Assemble unit and add items as appropriate (6.1).
Take care of the hose tubing connections (6.4 and 6.5).
2. Fill the unit with corresponding heat transfer liquid (6.4). The units are designed for operation with
non-flammable and flammable liquids to DIN EN 61010-2-010.
Take care of the level of the heat transfer liquid! (6.3).
3. Compare the information on the rating label with the supply details.
4. Connect the unit only to a socket with a protective earth (PE) connection.
5. Check whether the main fuse-switch at the back
is in the "On = –" position.
6. Switch the unit on with the switch at the front.
7. With set the overtemperature cut-off point to a value clearly above room temperature (7.14.1).
8. Now you see the current bath temperature
in the display, e.g.:
If instead, a warning or error message is displayed, then refer to Section 7.13.3.
Bath-temperature
02%32
°C

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Menu structure: Command remote control
Menu
Display
Sounds
Language
Master mode
Autostart
Current consumpt.
DLK connect
Pump
Settings
Clock
Graph
Programmer
Interfaces 1
Control
Limits
Pump Level
Calibration
Works settings
Resolution
Device status
Display data
Basic settings
Overlevel handling
Set time
Set data
Timer 1
Timer 2
Format of data
Program 1
Program 2
Program 3
Program 4
Program 5
Ramp function
Serial Command
2serial Master /
Profibus
Analogue interfaces
Switching contact
Cooling valve
Refill valve
Shut off unit
Control parameters
Control para. sets
Tv manual/auto
Self Adaption
Correction limitation
Brightness
Contrast
intern Pt100
extern Pt100
Device type
Software Version
Serial numbers
Device data
Error store
Modus
Baudrate
RS485 adress
internal
external Pt100
ext. Analog interface
ext. seri. RS232/485
Calibration
Default
Alarm
Warning
all default
Basic window
Standard window
Super window
Show
Edit
Default
T il (min)
T ih (max)
Xp
Tn
Tv (auto)
Td (auto)
Kpe
Tne
Tve (auto)
Tde (auto)
Xpf
Prop_E (a)
off
external Pt100
RS232
Status
Edit
Loops
Graph
Info
Start / Stop
Hold / Continue
Modify
Erase
Show chart
Offset source
Setpoint offset
Automatic
Manual
Settings
All Modules
Master
Command
Contact
Other connected
modules
English
Deutsch
Français
Español
All default
Only control par. int.
Only control par. ext.
Only miscellaneous
Settings
Mode
Displayed value
Legend
Sample Time
Time axis
Time axis
Temp.scale
Temp.limits
None
Warnig
Warn. + Heater off
Alarm
no
yes
Status
Temp. Change
Time
Time unit
1(8.2)
2no menu in Command
Control variable
Control parameters
Setpoint offset

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3Controls and functional elements
1Command remote control (see page 16)
2Master control panel (see page 16)
3Mains switch
4Pump connection at side and bypass-valve (see illustration below)
5Bath cover
6Recessed grip
74 Feet
1Side pump connection:
Pumpe outflow, pressure output
(closed off with screw plug)
2Bypass valve
(in “external” position)
3Side pump connection:
Suction nozzle (return to bath)
(closed off with screw plug)

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1Cover for the two module slots
2Connection socket for the external Pt100 temperature probe
3Connection socket (CAN 1 and 2) for bus suitable for unit and to
which the refrigerating lower section and Command remote control
are connected.
4Main fuse-switch
5Connection socket for through-flow cooler DLK (accessary)
6Air intake to electronic head.
7Mains supply head
8Rear pump connection:
Suction nozzle (return to bath)
9Pumpe outflow (pressure output)
10 Cooling coil: Cooling water inlet connection
11 Cooling coil: Cooling water outlet connec-
tion
12 Drain nozzle with drain cock

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Clear view thermostat PVL 24
Bridge thermostat PB C

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Control element: “Master”
1Display
2: The temperature of an external source is displayed
(EXT is lit green).
3: Enter key
4, : Select keys
5: Heater active (yellow LED lit)
6: Cooler active (blue LED is lit)
7: Bath controlled by external temperature
source (green LED lits)
8: Error signal (red LED blinking)
9: Overtemperature set point to check or set Tmax
10 Mains ON (green LED is lit)
Control element: Command remote control
1Graphical display
2RS 232/485 socket (hidden on the back)
3/, /: Select keys
4: Enter key
5: Standby key, brings the thermostat into the idle mode.
(Heater and pump are switched off, yellow LED lits).
6: Escape key, to quit a window without any changes
7: Decimal point or “-”symbol
8: 5 Softkey duo-keys, their associated functions
are shown in the display

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4Device description
4.1 Environmental conditions
The operation of the thermostats is only allowed under the following conditions as specified in
DIN EN 61010-2-010:2003 and DIN EN 61010-1:2001:
Indoor use only.
Elevation up to 2000 m above sea level.
Foundation must be dense, even, non-slippery and non-flammable.
Ambient temperatures range (11).
Use only within this range for an undisturbed operation.
Mains supply voltage fluctuations (11).
Relative humidity (11).
Transient over voltage according to Installation Categories (Over voltage Categories) II.
Pollution degree: 2.
4.2 Device types
The type designation of the Proline heating thermostats always begins with P for Proline. The meaning of the follow-
ing letters is: V for clear-view thermostats respectively VL with insulation for an extended temperature range, J for
calibration thermostats respectively JL with insulation for an extended temperature range. The following numbers are
equal to the bath volume in liters.
The models PB for min. 200 mm bath depths and PBD for min. 320 mm bath depths can be used as bridge ther-
mostats.
Examples: P 5 C is a Bath thermostat with 5-liter bath and Command remote control.
PVL 15 is a clear view thermostat with 15-liter bath and operating temperature up to -60 °C (with
LAUDA add-on cooler).
PJ 12 C is a calibration thermostat with 12-liter bath and Command remote control.
PBD C is a bridge thermostat with big immersion depth and Command remote control.
4.3 Varioflex pump
All units are fitted with a Varioflex pump with an 8-stage variable drive. The pump power can therefore be optimally
matched to the relevant task: High pump pressure when, for example, long hoses pass to external loads or circulation
is to be provided for a large bath. Low pressure when the heat input into the bath must be low.
With heating thermostat P 5 C the Varioflex pump enables as a pressure/suction pump, the very effective supply of
pressure-sensitive glass reactors which have a minimum permissible pressure rating.
The thermostats PJ 12 with extreme bath depth and the bridge thermostats PBD are equipped with a very effective
pressure pump as all clear view thermostats (PV 15, PVL 15, PV 24, PVL 24, PV 36).
Furthermore, open vessels can be operated when a constant level controller (accessory LCZ 0660) is used (except
PV/PVL).

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At the right-hand side and at the back of the unit outflow and inflow nozzles are fitted for external loads. This means
that up to two external loads can be directly connected without a distributor. Connections which are not required
must be closed off with the supplied caps and union nuts.
A bypass valve can subdivide the total volume flow variably between the bath (internally) and the connected load (exter-
nally). Consequently, no "pump short circuit" is needed. If no load is connected to the pump connector, the bypass valve
must be set to the “internal”position for the best bath circulation.
In the heating range the Varioflex pump operates up to viscosity values of 150 mm²/s. In the closed-loop control
mode 50 mm²/s should not be exceeded. The temperature control is the best with 30 mm²/s and lower viscosity.
With small bath thermostats power level 3 to 6 is practicable.
For operation as a circulating thermostat with an external load, a higher power level is practicable to maintain the
temperature difference low, among other things also with higher temperatures in conjunction with oils as heat trans-
fer liquids.
The pump connections on the unit are fitted with M16 x 1 threads.
Pump characteristics (Section 11).
The pump outflows of the Varioflex pump can be closed off without any impairment to the pump. Here, the "inter-
nal" setting of the bypass controller is recommended.
4.4 Materials
All parts being exposed to with the heat transfer liquid are made of high quality material appropriate to the operating tem-
perature. Non-rusting stainless steel and high quality temperature-resistant, primarily solvent-resistant plastics are used.
4.5 Temperature display, control and safety circuit
In the Master Version, the units are equipped with a 5-character green LED display, which is used for the display of the
measurements and settings, as well as the operating status. The entry of setpoints and other settings occurs under menu
guidance via four keys.
The extra features of the Command Version include a removable console with a backlit graphical display. The entry of
the setpoint and other settings occurs under menu guidance via situation-dependent cursor keys and soft keys.
A Pt100 temperature probe acquires the outflow temperature in the bath. A high-resolution A/D converter processes
the measurement. Further measurement conditioning occurs using a special control algorithm for controlling the heater
actuator, which has a low reactive effect on the mains.
An external Pt100 can be connected via a socket (10S) for the acquisition of an external temperature. This value can
be displayed and, if required, used as the controlled variable with external control (Master) switched on. In this way the
system controls the external measurement and not the outflow temperature (7.7.4).
The safety system conforms to DIN EN 61010-2-010. The SelfCheck Assistant monitors about 50 unit parameters,
A dual-channel system is used in which two microcontrollers monitor one another. Along with the bath temperature
measurement and control probes, there are also two safety temperature probes (Pt100) for the safety circuit for the
overtemperature cut-off and for monitoring the bath temperature probe.
The overtemperature cut-off point is displayed on pressing the key on the Master. Changing the overtemperature
cut-off point: (7.2) (Switching on) on page 27.

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The bath level is acquired by the SelfCheck Assistant in 8 stages. A permanent display is provided only with the Com-
mand remote control. If the minimum level is undercut, the pump and heater are switched off. The reaction of the
thermostat in case of overfill can be set to simply display a warning, to display a warning and switch off the heater or to
switch off the unit completely with pump and heater.
When the level is too low, with overtemperature, or with other alarms the SelfCheck Assistant switches the heater off
on all poles. The pump is also switched off.
This switch-off under fault conditions is retained, i.e. after the fault is rectified, the fault must be reset (released) on the
Master operating panel with the key.
Other unit functions are described in the appropriate sections and in Section 7. (Starting up).
4.6 Programmer and ramp function
Master Version:
No programmer provided.
Command remote control:
The units are equipped with a programmer function, which enables five temperature/ time programs to be saved. Each
program consists of a number of temperature/ time segments. These also include details of how often the program is to
be executed. Up to 150 segments can be distributed amongst the five programs.
With the ramp function, a rate of change can be directly entered in °C per unit time. (7.10).
4.7 Interfaces
Master Version:
The Master unit is equipped with the following sockets at the back of the control head:
For the connection of an external Pt100 temperature sensor (10S).
Two sockets (70S) for the connection of components via the LAUDA equipment bus (cooling section, Command
remote control, external solenoid valve, etc.).
Command remote control:
The Command remote control is equipped as standard with the following sockets:
For the connection of an external Pt100 temperature probe (10S).
Two sockets (70S) for the connection of components via the LAUDA equipment bus (cooling section, Command
remote control, external solenoid valve, etc.)
One RS 232/485 interface (65S) at the back of the Command remote control.

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4.8 Interface modules (accessories)
The Master and Command can be supplemented with further interface modules, which are simply inserted into two
module slots (see Section 3) at the back of the control head.
The following modules are currently available:
1. RS 232/485 Interface Module (Order No. LRZ 913) with 9-pole SUB-D socket. Electrically isolated
through optocouplers. Command set largely compatible with the ECO, Ecoline, Integral XT and Integral T Se-
ries. The RS 232 interface can be directly connected to the PC with a cable wired 1:1 straight through (Order
No. EKS 037).
Further details can be found in section 8.3.
2. Analog Module (Order No. LRZ 912) with two inputs and two outputs on 6-pole DIN socket. The inputs and
outputs can be set independently as 4 –20 mA, 0 –20 mA or 0 –10 V interface.
Further details can be found in section 8.4.
3. Contact Module (Order No. LRZ 915) on 15-pole SUB-D socket. With three relay contact outputs (change-
over, max. 30 V/0.2 A) and three binary inputs for control via external voltage-free contacts. Plug 15-pole,
Order No. EQM 030 and plug case Order No. EQG 017.
Further details can be found in section 8.5.1.
4. Contact Module (Order No. LRZ 914) with connector to NAMUR NE28. Functionality as LRZ 915, but only
one output and one input on each of two DIN sockets. Coupling socket 3-pole, LAUDA Order No. EQD 047
and coupling plug 3-pole, LAUDA Order No. EQS 048.
Further details can be found in section 8.5.2.
5. Profibus Module (Order No. LRZ 917).
Further details can be found in the operating instructions Q4DA-E_13-014.
6. Pt100/LiBus Module (LAUDA catalogue no. LRZ 918)
External Pt100: For the connection of an external temperature sensor.
LiBus: For the connection of the Command remote control unit from the Proline
equipment line and other accessories, such as a solenoid valve for cooling
water control or a reverse-flow protection device.
4.9 Heater rating and power consumption from the mains
The Proline Low-Temperature Thermostats have an extraordinarily high heater rating of 3.5 kW maximum. If your
mains fuse is rated below 16 A, the current consumption can be reduced in steps from 16 A to 10 A (7.7.5). The
maximum heater rating of 3.5 kW is reduced accordingly.

02/2022 Proline heating thermostat 19 / 123
5Unpacking
Keep your original packing of your thermostat for later transport.
After unpacking, firstly check the device and accessories for any damage in transit. If, contrary to expectations, there is
visible damage to the unit, the carrier must be immediately informed, so that an investigation can be made.
Please also inform the LAUDA Service (Contact 9.4).
Standard Accessories:
Catalogue number
Quantity
Designation
Q4DA-E_13-009
1x
Operating instructions
for all heating thermostats
LRT 927
1
Command remote control
for all heating thermostats
LDSM2002
1
Software LAUDA Wintherm Plus
for PC
for all heating thermostats
HDQ 107
1 x
Bath cover
for Proline P 5
HDR 028
1 x
Bath cover
for calibration thermostat PJ(L) 12
HKO 026
(UD 413)
2 x
Hose olive Ø 13mm
for all heating thermostats
HKM 032
4 x
Union nuts for olives Ø 13 mm (M16 x
1)
already adapted for heating thermostats
HKN 065
4 x
Screw plugs (for M16 x 1)
already adapted for heating thermostats
HKO 009
(UD 415)
2 x
Tubing nipple Ø 11mm
for cooling coil of heating thermostats
HKM 045
(UD 415)
2 x
Union nuts for olives Ø 11 mm (M14 x
1.5)
for cooling coil of heating thermostats
EZB 260
1 x
Warning label "Hot Surface“
for all heating thermostats

20 / 123 Proline heating thermostat 02/2022
6Preparation
6.1 Assembly and sitting
Site the unit on a flat surface

The unit must not be put into operation if its tem-
perature during storage or transport has dropped
below the dew point.
Wait for about one hour.
Do not cover the ventilation openings at the back
of the control head.
When used as a bath thermostat put the bypass
valve in “internal”position (without “external load”)
(3).
With the transparent thermostat, the condensation of
humidity can be prevented at minus temperatures. A
thread is cut into the bath bridge. A plug-in nipple can be
screwed in here. The nipple is used to connect nitrogen or
dry air. Only a small volume flow of gas is required.
Operation with external loads
(Circulating thermostat) continue at (6.5).
Check whether the pump connectors at the side and back are fitted with sealing caps
(Section 3) or that hoses are fitted for external loads.
With bath temperatures over 70 °C the supplied self-adhesive label should
be applied on the bath at an easily visible point.
Do not carry out technical changes on the device!

The unit can safely operate up to an ambient temperature of 40 °C.