Julabo HE-4, SE-6, SE-26, SE-12 Instruction Manual

English
www.julabo.com
Operating Manual
Heating Circulators HE-4 SE-6
SE-12 SE-26
Bridge Mounted Circulator
SE-Z
1.951.2442-V4 03/16
19512442-V4.doc 21.03.16
JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info.de@julabo.com
Temperature control devices for research and industry are developed,
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 operation and possible applications of our circulators. For optimal utilization of all functions, we recommend that you thoroughly study this manual prior to beginning operation.
The JULABO Quality Management System
produced, and distributed according to the requirements of ISO 9001 and ISO 14001. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the circulator 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 notification reserved
Important: keep operating manual for future use
2
TABLE OF CONTENTS
Operating manual ................................................................................................................ 5
1. Intended use ................................................................................................................. 5
1.1. Description ............................................................................................................... 5
2. Operator responsibility – Safety recommendations ....................................................... 6
2.1. Disposal ................................................................................................................... 7
2.2. EC Conformity .......................................................................................................... 8
2.3. Warranty conditions ................................................................................................. 9
2.4. Technical specifications ......................................................................................... 10
Operating instructions ....................................................................................................... 12
3. Safety notes for the user ............................................................................................. 12
3.1. Explanation of safety notes .................................................................................... 12
3.2. Explanation of other notes ...................................................................................... 12
HE / SE
3.3. Safety recommendations ........................................................................................ 13
4. Operating controls and functional elements ................................................................ 15
5. Preparations ............................................................................................................... 18
5.1. Installation .............................................................................................................. 18
5.2. Bath fluids .............................................................................................................. 19
5.3. Temperature application to external systems ......................................................... 20
5.3.1. Tubing ............................................................................................................... 21
5.4. Filling / draining ...................................................................................................... 22
5.5. Countercooling ....................................................................................................... 23
6. Operating procedures .................................................................................................
24
6.1. Power connection ................................................................................................... 24
6.2. Switching on / Start - Stop ...................................................................................... 24
6.2.1. Switching on the circulator ................................................................................. 24
7.
7.1. Using the pre-settings in the
Sett i ng of temperatures ................................................................................. 25
menu ........................................................... 25
7.2. Direct setting of temperatures ................................................................................ 26
8.
Safety installations, warning functions ........................................................... 27
8.1. Excess temperature protection ............................................................................... 27
8.1.1. Early warning system, low level protection ......................................................... 28
8.2. Switch-over from warning to shutdown function...................................................... 29
8.3. Over and Sub temperature warning function .......................................................... 30
9.
Menu functions .............................................................................................. 31
9.1. MENU PROGRAM – START .................................................................................. 32
9.2. MENU PROGRAM – creation, administration ......................................................... 35
3
9.3. MENU PUMP - Setti ng of pum p pressure ...............................................................37
9.4. MENU CONFIG - Configuration of unit ....................................................................38
9.4.1. Remote control via the serial interface ................................................................39
9.4.2. Keypad control or setpoint setting via the analog input .......................................40
9.4.3. AUTOSTART ......................................................................................................40
9.4.4. OFF-MODE ........................................................................................................41
9.4.5. ACTVAR - actuating variable ..............................................................................41
9.4.6. Setting of clock and date ....................................................................................42
9.4.7. RESET – Factory settings ..................................................................................42
9.5. MENU CONTROL – Control characteristics and parameters ..................................42
9.5.1. CONTROL – Control INTERNAL / EXT ERNAL ...................................................44
9.5.2. SELFTUNING .....................................................................................................45
9.5.3. Dynamic internal .................................................................................................45
9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ..................................................46
9.5.5. COSPEED - external ..........................................................................................47
9.5.6. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ......................................47
9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY ...........................................48
9.7. MENU ATC - Absolut Temperature Calibration .......................................................49
9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ..........................................................51
9.7.2. ATC STATUS - YES / NO ...................................................................................51
9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT .............................................................
52
9.7.4. Example: 3-point calibration for internal control .................................................53
9.8. MENU LIMITS - Begrenzungen ...............................................................................55
9.8.1. Limits for internal control .....................................................................................56
9.8.2. Limits for external control ....................................................................................56
9.9. MENU IN/OUT – Analog inputs/outputs (Option) .....................................................58
9.9.1. Outputs of the connector - REG+E-PROG ..........................................................61
9.9.2. Input of the connector - REG+E-PROG ..............................................................62
9.9.3. ALARM-output / Stand-by-input ..........................................................................64
10. Troubleshooting guide / error messages ......................................................................66
11. Electr ical connections ..................................................................................................69
12. Remot e control ............................................................................................................71
12.1. Setup for remote control ..........................................................................................71
12.2. Communication with a PC or a superordinated data system ...................................71
12.3. List of commands ....................................................................................................72
12.4. Status messages ....................................................................................................75
12.5. Error messages .......................................................................................................75
13. I nst allat ion of electronic module ...................................................................................76
14. JUL ABO Se r vice – Online remote diagnosis ................................................................77
15. Cleaning / repairing the unit .........................................................................................78
4
HE / SE
JULABO circulators are not suitable for direct temperature control of foods, semi-
medium (bath fluid).
1x10
ICC
TCF
ATC
3
RS232
Pt100
PUMP
SMART

Operating manual

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. The units feature pump connections for temperature control of external systems (loop circuit).
luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath

1.1. Description

The circulators are operated via the splash-proof keypad. The implemented
microprocessor technology allows to set and to store different values that can be indicated on the VFD COMFORT-DISPLAY. Three menu keys facilitate adjusting setpoints, warning and safety functions and menu functions.
Temperature- and time-dependent processes can be stored and executed using the
integrated programmer.
The control electronics including “ICC - Intelligent Cascade Control” automatically
adjust the heat supply to the thermal requirements of the bath.
The TCF - Temperature Control Features give the user access to all important
temperature control parameters. This means full control of the control behavior at all times and the ability to manually adjust or adapt the controls to the specific application.
Absolute Temperature Calibration (ATC3) provides high temperature stability at all
points in the bath. With the 3-point calibration, an offset is adjusted at three temperatures to ensure an accurate temperature pattern at the selected spot in the bath over the entire temperature range.
Electrical connections:
The serial interface, switchable from RS232 to RS485, allows modern process technology without additional interface. Connection for Pt100 external sensor for external temperature measurement and control. Alarm output for external alarm message or control of JULABO refrigerating baths or solenoid valve (cooling water). The electronic module (option) provides 3 further analog connections (alarm input, standby input, recorder output, programmer input).
The excess temperature protection conforming to IEC 61010-2-010 is a safety
installation independent from the control circuit. This protection can be indicated and set on the VFD COMFORT-DISPLAY.
The early warning system for low level signals that bath fluid needs to be refilled
before the low level protection conforming to IEC 61010-2-010 causes a complete shutdown of the main functional elements.
Intelligent pump system: The pump capacity (electronically adjustable via the motor
speed) enables to adapt to varying conditions for internal and external temperature applications.
5

Operator responsibility – Safety recommendations

2. Operator responsibil ity – Safety recommendations
The products of JULABO ensure safe operation when installed, operated, and maintained according to common safet y regulations. This section explains the potential dangers that may arise when operating the circulator 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 circulator 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
Safety instructions for the operator:
You have received a product designed for industrial use. Nevertheless, avoid strikes to the
housing, vibrations, damage to the operating-element panel (keypad, 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
instruments being operated on the same mains.
This unit is designed for operation in a controlled electromagnetic environment. This means that
transmitting devices (e.g., cellular phones) should not be used in the immediate vicinity. Magnetic radiation may affect other devices with components sensitive to magnetic fields (e.g., monitors). We recommend maintaining a minimum distance of 1 m.
Permissible ambient temperature: max. 40 °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.
JULABO GmbH Gerhard-Juchheim-Strasse 1 77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info.de@julabo.com www.julabo.com
Appropriate operation
Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the circulator. Routine operation can also be carried out by untrained personnel who should however be instructed by trained personnel.
6
HE / SE
Valid in EU countries
waste is not permitted!
Use:
The bath can be filled with flammable materials. Fire hazard! There might be chemical dangers depending on the bath medium used. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data sheets). Insufficient ventilation may result in the formation of explosive mixtures. Only use the unit in well ventilated areas.
Only use recommended materials (bath fluids). Only use non-acid and non corroding materials. When using hazardous materials or materials that could become hazardous, the operator must affix
the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible:
1
2
or 2
Particular care and attention is necessary because of the wide operating range. There are thermal dangers: Burn, scald, hot steam, hot parts and surfaces that can be touched.
Observe the instructions in the manuals for instruments of a different make that you connect to the circulator, particularly the respective safety recommendations. Also observe the pin assignment of plugs and technical specifications of the products.
Warning label W00: Colors: yello w, b lac k Danger area. Attention! Observe instructions. (operating manual, safety data sheet)
Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation. Scope: EU
Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation. Scope: USA, NAFTA
Warning label W26: Colors: yellow, black Hot surface warning.
(The label is put on by JULABO)

2.1. Disposal

The circulator contains a back-up battery that supplies voltage to memory chips when the unit is switched off. Do not dispose of the battery with household waste! Depending on battery regulations in your country, you might be obliged to give back used or defect batteries to gathering places. The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil. For disposal, observe the instructions in the safety data sheets.
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 equipment marked with a crossed­out 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 municipal
7
Operator responsibility – Safety recommendations

2.2. EC Conformity

8
HE / SE

2.3. Warranty conditions

JULABO GmbH warrants its products against defects in material or in workmanship, when used under appropriate conditions and in accordance with appropriate operating instructions
for a period of ONE YEAR.
Extension of the warranty period – free of charge
With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to 24 months, limited to a maximum of 10 000 working hours.
To apply for this extended warranty the user must register the unit on the JULABO web site www.julabo.com, indicating the serial no. The extended warranty will apply from the date of JULABO GmbH’s original invoice.
JULABO GmbH reserves the right to decide the validity of any warranty claim. In case of faults arising either due to faulty materials or workmanship, parts will be repaired or replaced free of charge, or a new replacement unit will be supplied.
Any other compensation claims are excluded from this guarantee.
9
Operator responsibility – Safety recommendations
Heating circulators
Working temperature range
°C
20 … 250
20 ... 300
20 ... 300
20 ... 300
Temperature stability
°C
±0.01
±0.01
±0.01
±0.01
Bath opening (WxL)
cm
Bath depth
cm
15
20
20
20
Filling volume
liters
Overall dimensions (WxDxH)
cm
21x42x40
21x43x44
30x43x47
36x61x47
Weight
kg
Bridge mounted circulator
SE-Z
Working temperature range
°C
20 ... 300
Temperature stability
°C
±0.01
Immersion depth max./min.
cm
18/9
Overall dimensions (WxDxH)
cm
32x17x33
Weight
kg
7 HE
SE
Mains power connection
V/Hz
208-230 / 50/60
208-230 / 50/60
Current draw (at 208 V / 230 V)
A
8 / 9
13 / 14
Mains power connection
V/ Hz
100-115 / 50/60
Current draw (at 100 V / 115 V)
A
9 / 10
HE
SE
Temperature selection
digital
via keypad
indication on VFD COMFORT-DISPLAY
remote control via PC
indication on monitor
Temperature indication
VFD COMFORT-DISPLAY
Resolution
°C
0.01
0.01
Temperature control
ICC - Intelligent Cascade Control
Heater wattage (at 230 V)
kW
2,0
3,0
Heater wattage (at 115 V)
kW
1,0
---
Electronically adj. pump capacity stages
1 ... 4
1 ... 4
Flow rate at 0 bar
l/min
22 ... 26
22 ... 26
Max. pressure at 0 lit ers
bar
0.7
0.7
Max. suction at 0 liters
bar
0.4
0.4
Electrical connections:
See page 11
Ambient temperature
°C
5 … 40
5 ... 40

2.4. Technical specifications

HE-4 SE-6 SE-12 SE-26
13x15 13x15 22x15 22x30
3 ... 4,5 4,5 ... 6 7,5 ... 12 18 ... 26
11 13,5 14,0 27,0
All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C bath fluid: water operating temperature: 70 °C Technical changes without prior notification reserved.
ATC3 INT/EXT °C ±3 / ±9 ±3 / ±9
10
HE / SE
Caution:
Electrical connections:
External alarm device 24-0 V DC / max. 25 mA Computer interface RS232 or RS485 External Pt100 sensor
Optional for HE, SE (Order No. 8900100 Electronic module with analog connections) Programmer input -100 °C to 400 °C = 0 - 10 V or 0 - 20 mA or 4 - 20 mA Input for the signal of a flow meter or external manipulated variable Temperature recorder outputs 0 - 10 V (0 V = -100 °C, 10 V = 400 °C) 0 - 20 mA (0 mA = -100 °C, 20 mA = 400 °C) 4 - 20 mA (4 mA = -100 °C, 20 mA = 400 °C) Standby input for external emergency switch-off Alarm output for external alarm signal
Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 320 °C Low liquid level protection floa t switch Classification according to DIN 12876-1 class III
Supplementary safety installations Early warning system for low level float switch High temperature warning function optical + audible (in intervals) Low temperature warning function optical + audible (in intervals) Supervision of working sensor plausibility control Reciprocal sensor monitoring between working and safety sensors difference >35 K Alarm message optical + audible (permanent) Warning message optical + audible (in intervals)
Environmental conditions according to IEC 61 010-1: Use indoors only. Altitude up to 2000 m - normal zero. Ambient temperature: see Technical specifications Humidity: Max. relative humidity 80% for temperatures up to +31 °C, linear decrease down to 50% relative humidity at a temperature of +40 °C Max. mains voltage fluctuations of ±10% are permissible. Protection class according to IEC 60 529 IP21 The unit corresponds to Class I Overvoltage category II Pollution degree 2
The unit is not suitable for use in explosive environment
EMC requirements according to EN 61326-1 This unit is an ISM device classified in Group 1 (using high frequency for internal purposes), Class A (industrial and commercial range).
11

Operating instructions

In addition to the safety warnings listed, warnings are posted throughout the operating
Read and follow these important instructions for averting dangers.
Warning:
Caution: Notice:
Note! Draws attention to s
Important! Indicates usage tips and other useful information.
This icon is used in the operating instructions to indicate flashing values or parameters which have to be set or confirmed.
Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

manual. These warnings are designated by an exclamation mark inside an equilateral triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word.
Describes a possibly highly dangerous situation. If these instructions are not followed, serious injury and danger to life could result.
Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries could result. A warning of possible property damage may also be contained in the text.
Describes a possibly harmful situation. If this is not avoided, the product or anything in its surroundings can be damaged.

3.2. Explanation of other notes

omething special.
12
Follow the safety instructions to avoid personal injury and property damage. Also, the
O nly connect the unit to a power socket with an earthing contact (PE – protective
these parts.

3.3. Safety recommendations

valid safety instructions for workplaces must be followed.
earth)!
The power supply plug serves as a safe disconnecting device from the line and must always be easily accessible.
Place t he unit on an even surface on a base made of nonflammable material.
Do not stay in the area below the unit.
Make sur e you read and understand all instructions and safety precautions listed in
this manual before installing or operating your unit.
Set t he excess temperature safety installation at least 25 °C below the fire point of the bath fluid.
O bs er ve the limited working temperature range when using plastic bath tanks.
Never operat e the unit without bath fluid in the bath.
Pay attention to the thermal expansion of bath oil during heating to avoid
overflowing of the fluid.
Pr event water from entering the hot bath oil.
Do not drain the bath fluid while it is hot!
Check the temperature of the bath fluid prior to draining (e.g., by switching the unit on for a short moment).
Use suit able connecting tubing.
Avoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
Make sur e that the tubing is securely attached.
Regularly check the tubing for material defects (e.g., for cracks).
Never operat e damaged or leaking units.
Al ways tur n off the unit and disconnect the mains cable from the power source
before performing any service or maintenance procedures, or before moving the unit.
Al ways tur n off the unit and disconnect the mains cable from the power source before cleaning the unit.
Al ways empt y the bath before moving the unit.
Transport the unit with care.
Sudden j olt s or drops may cause damage in the interior of the unit.
O bs er ve all warning labels.
Never rem ove warning labels.
Never operat e units with damaged mains power cables.
Repairs ar e to be carried out only by qualified service personnel.
HE / SE
Some parts of the bath tank and the pump connections may become extremely hot
during continuous operation. Therefore, exercise particular caution when touching
13
Safety notes for the user
Caution:
determine the method of decontamination.
With a screwdriver turn back the adjustable excess temperature protection until the
example.
The temperature controlling i.e. of fluids in a reactor constitutes normal circulator practice.
We do not know which substances are contained within these vessels. Many substances are:
inflammable, easily ignited or explosive
hazardous to health
environment ally unsafe
i.e.: dangerous
The user alone is responsible for the handling of these substances!
The following questions shall help to recognize possible dangers and to reduce the risks to a minimum.
Ar e all tubes and electrical cables connected and installed? Note: sharp edges, hot surfaces in operation, moving machine parts, etc.
Do dangerous steams or gases arise when heating? Is an exhaust needed when working?
What to do when a dangerous substance was spilled on or in the unit? Before starting to work, obtain information concerning the substance and
Notice: Check the safety installations at least twice a year!
Excess temperature protection according to IEC 61010-2-010. shut-down point (actual temperature).
Low level protection according to IEC 61010-2-010. To check the function of the float, it can be manually lowered with a screwdriver for
14

4. Operating controls and f unc t ional elements

1
2
*refer to >MENU/CONFIG< >CONFIG / ACTVAR>
Front view Rear view
HE / SE
Mains power switch, illuminated
VFD COMFORT-DISPLAY
Header: Control indicators Line 1: Actual value internal or external
The display is depending on the selected control mode in the menu > Control < (internal or external).
Line 2: Working temp. setpoint, constantly S xxx. xx
Line 3: Actual value (E = external or I = internal)
Alternating with the display in line 1
Use the keys PI Capacity in % - with manipulated variable set to >control<* PS Capacity in % - with manipulated variable set to >serial<* or >eprog<* H Heater capacity in Watts U Mains voltage Volts F Flo w rate in liters/minute (providing EPROG input set to >Flowrate<)
to indicate further values in line 3
15
Operating controls and functional elements
2.1
Remote control
2.2
A beep signals the end of setting
2.3
4
4.1
Control indicators in the header: Heating / Cooling / Alarm /
Control indicators in the header: Temperature indication Internal or External actual value Temperature indication in °C (°F not possible on this unit)
Display of set pump pressure stage Four stages, can be set via the key
Navigation keys
1. Key: >OK< Start / Stop (pump / heater )
2. >OK< in the menu Menu item / select submenu for setting Save set value Save selected parameter
After the actions Start, Stop and change from VFD Display to standard display the key
The above graph “front side” shows an example for standard display.
is locked for a s hort time.
, under >MENU - PUMP<.
4.2
4.3
4.4
4.5
4.6
1. Key: >Return< Stop (pump / heater )
2. >Return< in the menu one menu level down Correction function for parameters or values (prior to OK)
- icon for „keep key pressed down“.
1. Key: >Up / Down <temperature – increase/decrease setpoint Push key quickly for single steps, Keep key pressed for fast change.
2. >Up/Down< in the menu selection of menu items / parameters
Menu keys
Key: start the menu > warning and safety values<
Key: start the menu >temperature setpoints< Key: display of MENU structure
immediately back to standard display
6
16
Adjustable excess temperature protection according to IEC 61010-2-010
HE / SE
7
Socket for external measurement and control sensor 8
SERIAL
Interface RS232: remote control via personal computer
9
Socket: control cable of JULABO refrigerated circulator
10
ALARM
Alarm output (for external alarm signal)
11
STAND-BY
Standby input (for external emergency switch-off)
12
REG+E-PROG
Programmer input and temperature recorder output
16
Mains fuses, T16A
17
20
Cooling coil connectors
21
or external setpoint programming
ext Pt100
or output for alarm messages
Option: Electronic module Order No. 8 900 100
Mains power cable with plug
Pump connectors suction pump pressure pump
17

Preparations

Heating circulators
Bridge mounted circulator SE-Z
5. Preparations

5.1. Installation

Place t he unit on an even surface on a base made of nonflammable material.
Place the bath tank in an upright
position.
1. Remove screw on both sides (transportation safety device in the middle).
2. Extend the bridge and place it on the bath tank. The bridge is extendable from 310 mm to 660 mm.
3. Adjust the bridge to the width of the bath tank.
18

5.2. Bath fluids

Caution:
corrosion in the bath, even in stainless steel.
Bath fluid
Tempe rature range
soft/decalcified water
5 °C to 80 °C
JULABO Description
Thermal G
Thermal M
Thermal HS
Order Number
10 liters
8 940 124
8 940 100
8 940 102
5 liters
8 940 125
8 940 101
8 940 103
Tempe rature range
°C
-30 ... 80
40 ... 170
20 ...250
Flash point
°C
--
284
270
Fire point
°C
--
306
>360
Color
light yellow
clear
light brown
JULABO Description
Thermal H10
Thermal H20S
Thermal H200
Order Number
10 liters
8 940 114
8 940 108
8 940 134
5 liters
8 940 115
8 940 109
8 940 135
Tempe rature range
°C
-20 ... 180
0 ... 220
60 ...200
Flash point
°C
190
230
292
Fire point
°C
216
274
334
Color
clear
light brown
clear
(much higher than recommended at the respective working temperature)
Carefully read the safety data sheet of the bath fluid used, particularly with regard to the fire point! If a bath fluid with a fire point of 65 °C is used, only supervised operation is possible.
Water: The quality of water depends on local conditions.
Due to the high concentration of lime, hard water is not suitable for temperature control because it leads to calcification in the bath.
Ferrous water can cause corrosion - even on stainless steel.
Chloric water can cause pitting corrosion.
Distilled and deionized water is unsuitable. Their special properties cause
Recommended bath fluids:
JULABO bath fluids
HE / SE
See website for list of recommended bath fluids.
ATTENTION: The maximum permissible viscosity is 70 mm
Caution:
Fire or other dangers when using bath fluids that are not recommended:
Please contact JULABO before using other than recommended bath fluids. Use only nonacidic and noncorrosive bath fluids.
JULABO assumes no liability for damage caused by the selection of an unsuitable bath liquid. Unsuitable bath fluids are fluids which, e.g.,
ar e highly viscous
2
/s.
19
Preparations
No l i abilit y for use of other bath fluids!
with the cap nut.
T16A
T16A
ext
Pt100
SERIAL
ALARM
REG+ E-PROG
STAND-BY
21 22
H = Height adjustment
have a low viscosity and have creep characteristics
have corr osive characteristics or
tend to crack.

5.3. Temperature applicat i on to external systems

Caution: Securely attach all tubing to prevent slipping.
If the circulator is operated without external system, close the pump connector (22)
Temperature application to external, closed systems
The circulator is used for temperature application to external, closed systems (loop circuit) with simultaneous temperature application in the circulator bath.
Unscrew the M16x1 collar nuts on the pump connectors with a 19 mm (3/4“) wrench and remove the sealing disks. Using the collar nuts, screw on the tubing connection fittings (for tubing 8 mm or 12 mm in diameter) delivered with the unit and tighten firmly. (Pressure pump: 22, suction pump: 21)
Push on the tubings, and secure with tube clamps.
Attach the tubings to the connectors of the external closed
system, e.g., an instrument with a pressure-resistant temperature jacket or a temperature coil, and fasten with tube clamps to prevent slipping.
Temperature application to external, open systems
The circulator is equipped with both a pressure and suction pump for external temperature application in open systems.
Differing flow rates of the pressure and suction pumps should be compensated. To maintain a constant liquid level, the JULABO „D+S“ Level Adapter is recommended for the external bath tank. The flow rate of the pressure pump will be then regulated by a built-in float device. The liquid level may be changed by a height adjustment on the „D+S“ Level Adapter.
Accessory: „D+S“ Level Adapter Order No. 8 970 410
Important:
S = Suction pump connection D = Pressure pump connection K = Float
20
The liquid level should be equal in the internal and external
baths (absolute height).
If you take out samples (for example Erlenmeyer flasks) from
the external bath, turn the circulator off with the Start/Stop key.
Order No. Length
Tempe rature range
8930008 1 m
CR® tubing 8 mm inner dia.
-20 °C to 120 °C
8930012 1 m
CR® tubing 12 mm inner dia.
-20 °C to 120 °C
8930108 1 m
Viton tubing 8 mm inner dia.
-50 °C to 200 °C
8930112 1 m
Viton tubing 12 mm inner dia.
-50 °C to 200 °C
8930410 1 m
Insulation for tubing 8 mm inner dia.
-50 °C to 100 °C
8930412 1 m
Insulation for tubing 12 mm inner dia.
-50 °C to 100 °C
8 930 209 0.5 m
8 930 214 3.0 m
Metal tubing, triple insulated, M16x1
-100 °C to +350 °C
8 930 220 0.5 m
8 930 223 3.0 m
Metal tubing, insulated, M16x1
-50 °C to +200 °C
Warning: Tubing:
Preventive maintenance: Replace the tubing from time to time.
Return flow safety device
If the liquid levels in the circulator bath and the external system are at
5.3.1. Tubing Recommended tubing:
HE / SE
different heights, overflowing must be prevented after the power has been turned off.
Flood hazard!
For this reason, shut-off valves can be integrated in the loop circuit.
Order No. Description 8 970 456 Shut-off valve (suitable up to +90 °C) 8 970 457 Shut-off valve (suitable up to +200 °C)
8 930 210 1.0 m 8 930 211 1.5 m
8 930 221 1.0 m 8 930 222 1.5 m
At high working temperatures the tubing used for temperature application and cooling water supply represents a danger source. A damaged tubing line may cause hot bath fluid to be pumped out within a short time. This may result in:
Bur ning of skin
Difficulties in breathing due to hot atmosphere
Safety recommendations
Employ suitable connecting tubing.
Make sure that the tubing is securely attached.
Avoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
Regularly check the tubing for material defects (e.g. for cracks).
21
Preparations
protection.

5.4. Filling / draining

Notice:
Pay attention to the thermal expansion of bath oil during heating to avoid overflowing of the liquid.
Do not drain the bath fluid while it is hot! Recommendation: Temperature range 5 °C to 40 °C Check the temperature of the bath fluid prior to draining (by switching the unit on for a short moment, for example).
Store and dispose the used bath fluid according to the laws for environmental
Filling
Take care that no liquid enters the interior of the circulator.
Recommended maximum filling level with water as bath fluid: 30 mm below the tank r im
Recommended maximum filling level with bath oils: 40 mm below the tank rim
After f illing, immerse the samples in the bath or place the lid on
the bath, in case the opening is not to be used.
The circulator provides an early warning system for low level
(description – please refer to page 28) that may be triggered when changing samples in the bath.
Draining
Turn the unit off with the mains switch.
Place the heating circulator near the rim of the table. Use a
suitable vessel as recipient for the bath fluid.
Unscrew the drain plug on the front of the bath tank to drain the bath.
22

5.5. Countercooling

location where the unit is operated.
T16A
T16A
ext
Pt100
SERIAL
ALARM
REG+ E-PROG
STAND-BY
20
FD200 Flow-through cooler
Caution:
Securely attach all tubing to prevent slipping.
Observe the laws and regulations of the water distribution company valid in the
HE / SE
For applications near the ambient temperature, the cooling coil (20) must be connected to the water mains.
Using tubing, connect the cooling coil to the tap water supply,
and lead the tap water in a sink through the return connector.
A specific water flow rate of 750 ml/minute (15 °C) is sufficient
to compensate for the characteristic temperature.
For applications near ambient temperature (20 °C), the cooling
water temperature should at least be 5 °C below the working temperature.
Controlled countercooling Use the MVS solenoid valve controller (26) and a solenoid valve (27) for controlled countercooling to reduce tap water consumption.
The circulator recognizes the MVS
controller via the socket automatically adjusts the necesssary parameters.
Accessory: Order No. Description
9 790 000 MVS controller for cooling water 8 980 700 Solenoid valve for cooling water
Order No. 9 655 825 The FD200 is suitable as cooling device for liquids in closed circuits
(loops). This unit is integrated in the return flow circuit from the external system connected to a circulator, and continuously withdraws heat from the liquid.
(10) and
23

Operating procedures

Caution:
er supply plug serves as safe disconnecting device from the line and must
We disclaim all liability for damage caused by incorrect line voltages!
Check to make sure that the line voltage matches the supply voltage specified on the identification plate. Deviations of ±10 % are permissible.
The VFD COMFORT-DISPLAY indicates the message "OFF".
6. Operating procedures

6.1. Power connection

O nly connect the unit to a power socket with earthing contact (PE – protective

6.2. Switching on / Start - Stop

6.2.1. Switching on the circulator

earth)!
The pow be always easily accessible.
Never operat e equipment with damaged mains power cables.
Regularly check the mains power cables for material defects (e.g. for cracks).
Switching on:
Turn on the mains power switch (1).
The unit performs a self-test.
Then the software version (example: V 1.xx) appears. The display „OFF“ or „R OFF“ indicates the unit is ready to operate.
The circulator enters the operating mode activated before switching
the circulator off: keypad control mode (manual operation) or
remote control mode (operation via personal computer).
Start:
Press The actual bath temperature is displayed on the VFD COMFORT­DISPLAY. The circulating pump starts with a slight delay.
Stop:
key.
Press key.
or Keep
key pressed.
24

7. Setting of temperatur es

7.1. Using the pre-settings in the menu
HE / SE
Werkseinstellungen: SETPNT 1 25 °C SETPNT 2 37 °C SETPNT 3 70 °C
Press the 3 different working temperatures can be adjusted. Their values are freely
selectable within the operating temperature range.
key to call up the menu for temperature selection.
The temperatures can be set in start or stop mode. Press key if a value is to be retained
Setting of working temperature in the
1. Press the key
2. Select SETPOINT 1 or 2 or 3 using the key
3. Confirm by pressing the
. The value flashes
key.
menu
or .
The circulator uses the new working temperature value for temperature
control.
Example: Adjustment/modification of the pre-setting of "SETPOINT 3"
1. Press the
2. Select SETPOINT 3 by pressing the Example: SETPNT 3 / 70.00 °C
key.
key.
3. Keep the (example: <70>)
4. Adjust value by pressing the and confirm by pressing the
The decimal digits flash Confirm once more by pressing the
Example on the left: SETPNT 3 / 85.00.
key pressed until the integer digits flash .
key and the
key.
and can be adjusted if desired.
key.
key to 85.00 °C
If the active setpoint (SETPNT) is changed, the new value is
immediately used for the control of the working temperature. The heater control indicator flashes.
If the other two setpoints (not activated for control) are changed the
MENU has to be left by pressing the key after the decimal
digits have been confirmed
Notice: Refer to SETPOINT MAX / MIN in chapter >MENU LIMITS<
25
Setting of temperatures
The temperatures can be set in start or stop mode.

7.2. Direct setting of temperatures

The circulator uses the setpoint of SETPNT 1 or 2 or 3 for temperature control
The indicated setpoint temperature can be changed directly any time. Example: change 25.00 °C to 50.00 °C
1. By pressing the key SETPOINT< example on the left: >SETPNT / 1 25.00°C<.
The integer digits flash
2. By pressing the keys
50.00 °C and is confirmed by pressing the
The decimal digits flash and can be adjusted if desired. Confirm once more by pressing the
the circulator switches to the active
(example: <25>).
and
the value is changed to
key.
key.
The circulator uses the new working temperature value for temperature
control.
26
Warning:

8. Safety installations , warning functions

Check the safety installations at least twice a year! Refer to ( page 14)
HE / SE
SECVAL (Security Values)
SAFETMP AL-TYPE OVERTMP SUBTEMP
Settings for the excess temperature protection > SAFETMP< and for the warning functions for high > OVERTMP< and low > SUBTEMP< temperature are made in a menu which is called up by pressing the key
Menu item > AL-TYPE< allows choosing between a warning and an alarm cut-off for the menu items > OVERTMP< and > SUBTEMP<.

8.1. Excess temperature p ro t ect io n

The excess temperature protection must be set at least 25 °C below the fire point of the bath fluid used! In case of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings!
This excess temperature protection is independent of the control circuit. When activated heater and circulating pump are completely shut down. The alarm is indicated by optical and audible signals (continuous tone) and the error message "ALARM-CODE 14" appears on the VFD COMFORT-DISPLAY together with the ticker: > EXCESS TEMPERATURE PROTECTOR ALARM-CHECK ADJUSTMENT <
Setting range: 20 °C ... 320 °C
.
Rough setting can be effected by using the temperature scale.
Exact setting:
1. Press the key
2. Press the
3. Set the new shutdown value within 30 seconds using a screwdriver. The value is indicated on the VFD COMFORT-DISPLAY Example: SAFETMP / 100 °C
Recommendation: Set the excess temperature protection at 5 °C to 10 °C above the working temperature setpoint.
to display menu >SAFETMP<.
key and the set shutdown value is indicated.
27
Safety installations, warning functions
Warning:

8.1.1. Early warning system, low level protection

This low level protection is independent of the control circuit and is divided into two sections:
1. Switch in stage 1 recognizes a defined fluid level .
An audible warning sounds (interval tone) and together with the ticker: > LOW LEVEL WARNING-FILL MEDIUM < a message appears on the VFD COMFORT-DISPLAY:
Refill the bath fluid!
2. Switch in stage 2 recognizes a low fluid level If stage 2 of the low level protection according to IEC 61010-2-
010 is triggered, a complete, all-pole shutdown of heater and circulating pump is effected A continuous alarm sounds and together with the ticker: > LOW LEVEL ALARM-FILL MEDIUM < a message appears on the VFD COMFORT-DISPLAY:
.
When adding bath fluid, always us the type of fluid which is identical with the fluid in the bath. Bath oils must not contain any water and should be pre-heated approximately to the current bath temperature! Explosion hazard at high temperatures!
Turn off the unit with the mains switch, refill bath fluid and turn the unit on again!
3. Float
4. Circulating pump
5. Heater
28
Factory setting:

8.2. Switch-over from warning to shutdown function

If a shutdown of functional elements (e.g. heater, circulating pump) is required when the limit values are exceeded or undercut the circulator can be changed over from warning function >WARNING< to shutdown function >ALARM<.
HE / SE
>WARNING<
1. Press the key
2. Select the menu >SECVAL -AL-TYPE< by pressing the
3. Press the (Example: WARNING)
4. Change the parameter by pressing the pressing the
or press the
Setting >WARNING< A mere warning function with optical and audible warning signal (interval tone) A message appears on the VFD COMFORT-DISPLAY:
OVERTMP SUBTEMP
Setting >ALARM<
Temperature limit with shutdown of heater and circulating pump. An audible alarm sounds (continuous tone) and a message appears on the VFD COMFORT-DISPLAY:
key if the parameter is to retained.
or
.
key.
key and the set parameter will flash .
key and confirm by
key.
or
OVERTMP SUBTEMP
29
Safety installations, warning functions

8.3. Over and Sub temperature warning function

Over temperature
Sub temperature
If the observance of a working temperature value >SETP< has to be supervised for a sensitive temperature application, then set over and sub temperature warning values. In the example below the SETPOINT 85 °C is surrounded by the values OVERTMP 87 °C and SUBTEMP 83 °C. The electronics immediately register if the actual temperature breaches one of the set limit values. The resulting reaction is defined in a further menu item. (See chapter 8.2. )
1. Press the key
.
2. By pressing the >SUBTEMP<.
or
key select the menu >OVERTMP< or
1. Press the key. The integer digits flash
2. Change the values to 87. °C and/or 83. °C by pressing the and
key and confirm with the key.
The decimal digits flash and can be adjusted if desired. Confirm once more by pressing the
See above examples.
The warning functions are only activated if the actual bath temperature remains within the set limit values for 3 seconds after switch-on.
Recommendation:
Set the over temperature warning value >OVERTMP< 5 °C to 10 °C above the working temperature setpoint.
Set the sub temperature warning value >SUBTMP< 5 °C to 10 °C below the working temperature setpoint.
key.
30

9. Menu f unc t ions

HE / SE
Menu level 1
1. Open the menu by pressing the
2. Use the
3. Press the Press the
The term „Menu functions“ refers to settings such as
Start program Page 32
Administration and creation of programs Page 35
Electronically adjustable pump capacity Page 37
Configuration of the unit Page 38 REMOTE – on / off (remote control via RS232) AUTOST – AUTOSTART on / off OFF-MODE – pump on / of f TIME / DATE – setting time and date RESET – factory settings
keys to scroll in menu level 1.
key to change to menu level 2. key if settings are to be retained.
key.
Control characteristics and parameters Page 42 C-TYPE – Internal or external control
DYNAMICS - internal Control parameter - XP-, TN-, TV- INTERNAL
Control parameter - XP-, TN-, TV- XPU-, EXTERNAL
Adjustable interface parameters Page 48 BAUD RATE, PARITY, HANDSHAKE
ATC - Absolute Temperature Calibration, Page 49 Sensor calibration INTERNAL SENSOR, Sensor calibration EXTERNAL SENSOR 3-point calibration
Limitations of temperature and capacity Page 55 SETPOINT MAX / MIN - Maximum and minimum setpoint HEAT MAX – Set maximum heating COOLING MAX – Set maximum cooling INTERN MAX / MIN – Limitation of the temperature range BAND HIGH / LOW – Band limit
31
Menu functions
Analog inputs/outputs Page 58
This menu will start a previously set program.
Correction function for parameters or values (prior to OK)
Menu level 1
Recorder output – CHANNEL 1, 2, 3 EPROG – External programmer input EX-STBY - STAND-BY input ALARM - output

9.1. MENU PROGRAM – START

Start-Menu
Requirements:
1. Create a program. (refer to next chapter)
2. Return to the Start-MENU and confirm the desired setting of each MENU item with the key
3. Set a start time (>TIME< >DATE< >YEAR<) if the program is to be started by the internal timer.
Menu level 1
Level 2 Parameter level
Press the key if a parameter is to be retained.
> STEP< Program start at section 1 … 10 > RUNS < Number of repetitions 1 ... 99
> END< Status at end of program (STDBY/SETPNT) Standby or last setpoint
> GO < Time of start (NOW/TIMER)
Set program step with
and
example: STEP 1
Set number of runs with
and
example: 1 run
Set desired parameters with
32
or
(STDBY / SETPNT)
Parameter STanDBY: the circulator switches to – OFF-. Parameter SETPoiNT: the circulator constantly keeps the temperature at the value of the last step.
and .
Level 2 Parameter level
Submenu TIMER
oer
HE / SE
Confirm >NOW< with the key and the program
will start immediately
or
start at the set time under parameter (TIMER ). Set time in the example below:
09. August 2009, 11:15 hrs
Parameter level
set the time for the start of the program in the
submenu >TIMER<.
>TIME< hours/minutes (hh:mm), set both values one after the other and confirm
hours flash, set by pressing
+
minutes flash, set by pressing
+
>DATE< day/months (TT/MM), set both values one after the other and confirm.
day flashes, set by pressing
+
month flashes, set by pressing
+
>YEAR< year
Set the year with
and .
The program starts at the set time.
Display of time until start: In line 3 the notice >TIMER< and the set values for „TIME“ and „DATE/YEAR“ are alternately indicated
Check the correct setting of the internal real time clock if required
(see MENU CONFIG)
33
Menu functions
The started program
D2
Termination / Interruption of a program
A
B
C1
C2
D1
After the start the program will indicate the currently calculated setpoint in line 2 S XX.XX. The value increases within the time period >TSLICE< until the target temperature >SETPNT< of the section is reached. If the time period in a section is set to „0“, the next section will not begin until the target temperature has been reached.
Use the edit keys approximately every 4 seconds between the current section (STEP XX) and the
A remaining time of the section B remaining time of the program C current bath temperature
I xxx.xx - internal actual value or E xxx.xx – external actual value
D RUN – the program has started or
PAUSE – the progress of the program has been interrupted by pressing the remain at the last calculated setpoint Continue with the
key. While the time is stopped the temperature will constantly
to scroll to line 3. The display changes
key.
The program can be terminated any time by pressing the key . In case of power failure the program is interrupted.
The circulator switches to –OFF- .
If the AUTOSTART-function is activated the programmer starts again at
the point in time approx. 5 minutes prior to the interruption. However, an uncontrolled change of the bath temperature has occurred.
34

9.2. MENU PROGRAM – creation, administration

The integrated programmer permits fast and easy programming of setpoint
25
50
10 20 30 40 50 60 10 20 30 40 50 60 10
[min]
75
100
150
200
°C
t
Step 1 2 4
6 8
retroactively and the integrated into the program.
HE / SE
Menu level 1
1 program 10 sections
temperature sequences. This temperature sequence is called program. A program is composed of individual sections (STEP). The sections are defined by duration (TSLICE) and target temperature. The target temperature is the setpoint (SETPNT), which is achieved at the end of a section. The programmer calculates the temperature ramp from the difference in time and temperature.
STEP (Nr.) 1 2 4 6 8 SETPNT (°C) 100 180 180 75 75 TIME (hh.mm) 00:20 00.10 00:20 00:50 00:20
Graph1
Sections without set value and time are skipped. They can be defined
35
Menu functions
Level 2
Level 3
Parameter level
Menu level 1
>EDIT< Create, administer program > STEP< Program step (1 ... 10) >SETPNT < Temperature setpoint of step ... >TSLICE< Duration of step ... > DELETE< delete program step (01 … 10, ALL)
Press key, if a parameter is to be retained.
Correction function for parameters or values (prior to OK)
Set program step with
(Example: EDIT STEP 01)
For STEP 01 the values for SETPOINT 01 and
TSLICE 01 are set one after the other
and
(STEP 1 … 10)
(values within working temp. range)
Integer digits flash, set by pressing
+
Decimal digits flash, set by pressing
+
(time slice)
Set duration by pressing and
Delete program Program steps can be deleted individually or entirely. (STEP 01, 02,… 10, ALL).
Set parameters by pressing and
36

9.3. MENU PUMP - Setting of pump pressure

The pressure of the circulating pump is adjustable in four stages. After setting, the VFD COMFORT-DISPLAY indicates the corresponding value.
Adjustable pump capacity stage 1 ... 4
Examples: Soll Ist
Illuminated display:
for pump pressure
Adjusted:Display for the adjusted pump pressure stage in the –OFF-
mode.
Effective: Display for the effective pump pressure stage (rotation
Factory setting: stage 1
speed) after start.
For protecting the pump motor, the rotation speed (i.e. the pump pressure stage) changes with the load applied. Example: The viscosity of the bath fluid (i.e. the load applied to the pump motor) changes with the working temperature in the bath.
Flow rate: 22 ... 26 l/min Pump capacity stage 1 2 3 4 Pump pressure [bar] 0.4 0.5 0.6 0.7 Suction pump [bar] 0.2 0.26 0.33 0.4 Total capacity [bar] 0.6 0.76 0.93 1.1
in a loop circuit
1. Press the
2. Select the menu >PUMP< pressing the pressing the
The set parameter flashes (example: >LEVEL 2<)
key.
key
HE / SE
key and confirm by
3. Change the parameter by pressing
key.
or Press the
key if the parameter is to be retained.
and confirm by pressing the
37
Menu functions
See WARNING page 40

9.4. MENU CONFIG - Configuration of unit

Menu level 1
A RESET can be effected only in the >OFF< mode.
Switch off circulator by pressing the CONFIGURATION.
key and call up the menu
Level 2 Parameter level
or
or
or
Press the key if a parameter is to be
retained. Correction function for parameters and values (prior to OK).
Switch on and off remote control by pressing
and
Control display in the topline
for Rem ote
For remote control refer to 71 Connect RS232 with PC.
Switch over setpoint setting by pressing
and
OFF –Setpoint setting with the navigation keys
or Setpoint setting via the analog socket „ext. Pt100 or analog socket >REG+EPROG<
Switch on and off autostart by pressing
or
AUTOSTART on = on AUTOSTART off = off
and
Switch on and off OFFMODE by pressing
or
PUMP ON continuous operation of circulating pump PUMP OFF circulating pump is linked to Start/Stop
and
Switch over the input variable by pressing
or
and
Programming of variables for the parameters >
or
SERIAL < or > EPROG < is only accepted, if the unit is in Start mode
38
HE / SE
Level 2
Level 3
Parameter level
Hours flash, set by pressing
Minutes flash, set by pressing
Day flashes, set by pressing
Month flashes, set by pressing
Year flashes, set by pressing
+
+
+
+
+
Return to factory settings by pressing
RESET returns all set values to the factory setting except for date and time.
A RESET can be effected only in the –OFF- mode. During the message –RUN- all parameters are

9.4.1. Remote control via the serial interface

Factory setting: OFF
The control electronics offer two ways of adjusting a setpoint.
1. Adjustment of setpoint using the keypad or the integrated programmer.
2. Adjustment of setpoint via the serial interface RS232 using a PC or a superordinated process control system.
The topline of the VFD-DISPLAY shows a bright „R“ for remote
control; - remote control discontinued.
RS232
IMPORTANT: additional measures for remote control
Connect the circulator to the PC using an interface cable. Check the interface parameters of both interfaces (circulator and PC)
and make sure they match. (refer to 12.1. Setup for remote controll page 71)
reset to factory settings.
39
Menu functions
Notice:
start of the circ ulator by pressing the mains switch or using a timer.

9.4.2. Keypad control or setpoint setting via the analog input

Factory setting:: OFF
The selected mode is indicated on the VFD COMFORT-DISPLAY
OFF
PT100
EPROG
>
>
In addition to the serial interface via remote control the new circulator offers the possibility to adjust the setpoint via analog interface >ext. Pt100< or >REG+E-PROG<.
OFF - Setpoint setting with the navigation keys
or the integrated programmer.
PT100 - Setpoint setting via the analog socket „ext. Pt100“ using an
external temperature sensor or an appropriate voltage/current source.
EPROG - Can only be adjusted when an electronic module with analog
connections is used (option). Setpoint setting via the analog interface REG+E-PROG connection with an external voltage or current source or a programmer.
Important:
Connect the external voltage or current source or a programmer to the circulator via the socket REG+E-PROG (see page 62). In the menu >MENU IN/OUT< set the parameter >EPROG­INPUT< and the input variables >EPROG-SIGNAL< (see page 62).
The E-Prog input can only be used either under menu item >SP EXT < or under menu item >ACTVAR< (see page 41).

9.4.3. AUTOSTART

Warning:
For supervised or unsupervised operation with the “AUTOSTART“ function avoid any hazardous situation to persons or property
Take care to fully observe the safety and warning functions of the circulator.
Factory settings: OFF
The circulator has been configured and delivered by JULABO in accordance with the NAMUR recommendations. This means for the start mode that the unit must enter a safe operating status after a power failure. This safe operating status is indicated by the message „OFF“ or „R OFF“ on the VFD COMFORT-DISPLAY. A complete, all-pole shutdown of the main functional elements such as heater and pump motor is effected. The values set on the circulator remain saved and the unit is restarted by pressing the start/stop key in manual control. In remote control mode the values need to be resent by the PC via the interface. If such a safety standard is not required, the NAMUR recommendations can be bypassed with the AUTOSTART function thus allowing a direct
40

9.4.4. OFF-MODE

insulations for example, may be damaged or destroyed, if
HE / SE
Factory setting: PMP OFF

9.4.5. ACTVAR - actuating variable

Factory setting: CONTROL
Usually the circulating pump is controlled with the key start/stop command. If the circulating pump is to work in the –OFF­mode, the adjustment can be set in a sub-menu.
The pump motor will be shutdown in case of alarm anyhow.
The variable (ACTuating VARiable) corresponds to the extent to which the heater or cooling unit of the circulator is controlled. Heat or cold is applied to the bath according to this variable. If this happens with the control electronics of the circulator, called > CONTROL < in this particular case, the bath temperature is exactly heated and maintained constant at the adjusted setpoint.
Programming of variables for the parameters > SERIAL < or >
EPROG < is only accepted, if the unit is in Start mode.
Possible parameters: CONTROL – The internal control electronics of the circulator controls
the heater und the connected cooling unit. Self-tuning is possible.
SERIAL – The heater or the connected cooling unit receives the control
signal via the serial interface. Self-tuning is not possible.
or the
Warning:
The working temperature range of the circulator is determined during configuration. If set to >CONTROL<, this range ca nnot be exceeded. If set to > SERIAL < and > EPROG <, heat or cold is applied to the bath without control. The permissible maximum temperature can be exceeded. The user has to take adequate precautions for temperature control. Materials, such as gaskets or the permissible maximum temperature is exceeded.
The safety and warning functions > < of the instrument must always be used to their fullest capacity.
EPROG - The heater or the connected cooling unit receives the control
signal via the E-Prog input. Self-tuning is not possible.
Important:
Under
(refer to page 62).
Note:
The E-Prog input can only be used either under menu item >SP EXT< (refer to page 40) or under menu item > ACTVAR <.
set the input variable >EPROG U/I< to
41
Menu functions
Level 2
Parameter level

9.4.6. Setting of clock and date

The internal real time clock allows starting a program any time. The clock is set to the local mean time (MEZ) at the factory.
If the unit is operated in a different time zone, the clock can be
adjusted in this menu.
Change summer/winter time in this menu

9.4.7. RESET – Factory settings

A Reset will return all values to factory setting except for date and time.
A RESET can be effected in the >OFF< mode only.
Switch off the circulator by pressing the key menu CONFIGURATION.
and call up the

9.5. MENU CONTROL – Control characteristics and parameters

Menu level 1
The circulator is qualified for internal and external temperature control The switchover is carried out in the menu >C-TYPE< .(INT or EXT).
For external temperature control and measurement connect a Pt100
external sensor to the socket at the rear of the circulator.
Press the key if a parameter is to be retained. Correction function
for parameters or values (prior to OK)
The parameter flashes, switch by pressing
or
or
The control type can be adjusted in the -OFF-
mode only.
Depending on the adjustment only the active
parameters are displayed.
The parameter flashes, switch by pressing
and
and
42
or
OFF - no selftuning. ONCE - single selftuning (factory setting) ALWAYS - continual selftuning.
HE / SE
Level 2
Parameter level
C-TYPE INTERNAL
C-TYPE EXTERNAL
0.1 … 99.9
The parameter flashes, switch by pressing
or
This parameter affects the temperature sequence
in case of internal control.
and
The parameter flashes, set by pressing
0.1 … 99.9
3 … 9999
0 … 999
The parameter flashes, set by pressing
The parameter flashes, set by pressing
+
+
+
The parameter flashes, set by pressing
0.1 … 99.9
3 … 9999
0 … 999
The parameter flashes, set by pressing
The parameter flashes, set by pressing
The parameter flashes, set by pressing
+
+
+
+
43
Menu functions
(See page 49).
Attention:
circuit

9.5.1. CONTROL – Con t r ol INTERNAL / EXTERNAL

Switchover can only be effected if a Pt100 external sensor is connected.
Pt100
Factory setting: INT
IMPORTANT: Additional measures for external temperature control
Suggested sett ings for external temperature control:
BAND HIGH / LOW and INTERN MAX / MIN see chapter >MENU LIMITS<
Sensor calibration of the Pt100 external sensor is carried out in the
menu >ADJUST<, submenu >ATC SENOR - EXT<; set AT C STATUS< to >OFF<
Place the external sensor into the temperature-controlled medium and securely fix the sensor.
Accessory: Pt100 external sensor
Order No. Description Material Cable 8981003 200x6 mm Ø, stainless steel 1.5 m
8981005 200x6 mm Ø, glass 1.5 m 8981006 20x2 mm Ø, stainless steel 1.5 m 8981010 300x6 mm Ø, stainless steel 1.5 m 8981015 300x6 mm Ø, stainless steel / PTFE coated 3 m 8981013 600x6 mm Ø, stainless steel / PTFE coated 3 m 8981016 900x6 mm Ø, stainless steel / PTFE coated 3 m 8981014 1200x6 mm Ø, stainless steel / PTFE coated 3 m 8981103 Extension cable for Pt100 sensor 3.5 m 8981020 M+R in-line Pt100 sensor
Pt100 M+R
The M+R in-line Pt100 sensor is a flow sensor and can be installed loop
44

9.5.2. SELFTUNING

°C
t
APER
NORM
Setpoint temp. stability
°C
t
APER
NORM
temperature ramp
temp. stability
HE / SE
Selftuning: When performing a selftuning for the controlled system (temperature
application system), the control parameters Xp, Tn and Tv are automatically determined and stored.
Possible parameters:
OFF - no selftuning
The control parameters ascertained during the last identification are used for control purposes.
ONCE - single selftuning (factory setting)
The instrument performs a single selftuning of the controlled system after each start with the key or after receiving a start command via the interface.
ALWAYS - continual selftuning
The instrument performs a selftuning of the controlled system whenever a new setpoint is to be reached. Use this setting only when the temperature application system changes permanently.

9.5.3. Dynamic internal

This parameter affects the temperature sequence only in case of internal control.
Factory setting: APER (aperiodic)
Possible parameters:
NORM Allows for reaching the setpoint faster – with
setpoint change or ramp function – but overshooting of up to 5 % is possible.
APER Ram p function: the increase of temperature
occurs temporally offset and achieves the target temperature without overshooting. Setpoint change: The temperature increases at the same rate, the target temperature is achieved without overshooting.
With both settings constant temperature is achieved
after approximately the same time.
45
Menu functions
Optimum setting
Control parameters XP-, TN-, TV- INTERNAL as well as
Xp too low
Tv/Tn too low
Xp too high or Tv too high
Tv/Tn too high or Xp too high

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL

Setting range: 0.1 ... 99.9
Setting range: 3 ...9999
Setting range: 0 ... 999
In most cases the control parameters preset in the factory are adequate for achieving an optimum temperature sequence. The control parameters allow adjustment to special control processes..
Proportional range >Xp<
The proportional range is the range below the setpoint in which the control circuit reduces the heating capacity from 100% to 0 %
Reset time >Tn< (Integral component)
Compensation of the remaining control deviation due to proportional regulation. An insufficient reset time may cause instabilities. Excessive reset times will result in unnecessary prolongation of compensation of the control difference.
Lead time >Tv< (Differential component)
The differential component reduces the transient time. An insufficient lead time will prolong the time required for compensation of disturbance effects and cause high overshooting during run-up. An excessive lead time could cause instabilities (oscillations)
Optimization instructions for the PID control parameters
-EXTERNAL The heat-up curve reveals possible faulty settings of the
control parameter.
Inappropriate settings may produce the following heat-up curves:
46
°C
t
Setpoint
5
3
0
Int. temperature
Ext. temperature
Setting range: 0 ... 999
Setting range: 0.1 ... 99.9

9.5.5. COSPEED - external

This parameter affects the temperature pattern only in case of external control.
Possible parameters: 0.0 ... 5.0 During selftuning, the control parameters Xp, Tn and Tv of a controlled
system are automatically determined and stored. Depending on the controlled system, time for tuning can be unequally longer. This controller layout allows protection of sensitive objects requiring temperature application.
HE / SE
As soon as a co-speed factor is set, it is considered for calculating the control parameters. As shown in the diagram, tuning times become shorter the higher the co-speed factor is, but overshooting can happen in the internal system.

9.5.6. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL

In most cases the control parameters preset in the factors are adequate for achieving an optimum temperature sequence.
Setting range: 0.1 ...99.9
Setting range: 3 ...9999
The control parameters allow adjustment to special control processes.
Proportional range >Xpu<
The proportional range Xpu of the cascaded controller is only needed for external control.
47
Menu functions
Protocol RTS/CTS (Hardware handshake)

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY

Menu level 1
For communication between circulator and a PC or a superordinated process control system the interface parameters of both units must be identical.
For remote control refer to page 71
Level 2 Parameter level
Factory settings: 4800 Baud even hardware handshake
Press the key if a parameter is to be
retained.
The parameter flashes, switch by pressing
and
The parameter flashes, switch by pressing
even: Data bits = 7; Stop bits = 1 odd: Data bits = 7; Stop bits = 1 no: Data bits = 8; Stop bits = 1
and
The parameter flashes, switch by pressing
Xon/Xoff-protocol (Software handshake)
and
48
°C
°C
T 1
T
°C
°C
T 1
T
°C
TT
M
B (INT)
T
°C
TT
M
B (EXT)
T
Pt100
ext

9.7. MENU ATC - Absolut Temperature Calibration

ATC serves to compensate a temperature difference that might occur between circulator and a defined measuring point in the bath tank because of physical properties.
HE / SE
Example: 1-point calibration
For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted working temperature. This value is then set on the circulator in the menu >ATCalibration< under menu item > CTEMP X <. This can be a 1-point, 2-point or 3-point calibration.
3-point calibration
Principle:
1 = Original curve
T
T
M = Temperature measuring instrument with temperature sensor B = Bath tank (INTernal or EXTernal) T = circulator
CT = Temperature on measuring point TT = Temperature on circulator
49
Menu functions
key if parameter is to be retained.
Menu level 1
Level 2
Parameter level
Press the
Correction function for parameters or values (prior to OK).
The parameter flashes, switch by pressing
or
On level 2 a (I) is indicated for internal or an (E)
for external.
Example:
and
The parameter flashes, switch by pressing
or
>NO< Carry out an ATC calibration
and
>YES< return to standard operation after
calibration.
The parameter flashes, switch by pressing
A >1-point<, >2-point< or >3-point< calibration
can be carried out.
and
Level 2 Parameter level
If only a 1-point calibration is carried out, the following menu items are not indicated anymore
The selected calibration is indicated on level 2 by 1 or 2 or 3.
The value >TMPVAL< is only indicated
In addition the measured temperature value
>CALVAL X< is saved during the next step.
Integer digits flash, set by pressing
+
Decimal digits flash, set by pressing
+
The value is only indicated
50
Level 2 Parameter level
Integer digits flash, set by pressing
+
Decimal digits flash, set by pressing
+
HE / SE
If only a 2-point calibration is carried out, the following menu items are not indicated anymore.
The value is only indicated
Integer digits flash, set by pressing
Decimal digits flash, set by pressing

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL

In the first submenu the ATC function is set for the >INTERN< internal or the >EXTERN< external temperature sensor.
Calibration can be carried out for the internal temperature sensor and for the external temperature sensor connected to the socket „ext. Pt100“. The circulator is able to save both parameter sets. However only the one which has been set under menu item >ATC SENSOR < is displayed.
+
+

9.7.2. ATC STATUS - YES / NO

In the second submenu the ATC function for the temperature sensor selected above is activated >YES< or deactivated >NO<.
>YES< (factory setting) The controller of the circulator uses the original
curve of the temperature sensor or the new curve measured during the ATC calibration.
Important: Set to >NO< during the calibration process
>NO< An ATC calibration is to be carried out.
Important: Set to >YES< after calibration.
In the > ATC STATUS < >YES< the ATC calibration always affects the current working temperature; also the one set via interface.
51
Menu functions

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT

A >1-point<, >2-point< or >3-point< calibration can be carried out. First geometrically define the location for calibration (measuring point CT),
then determine the temperature values of the calibration points. The type of calibrations also determines the number of the following pairs of values indicated on the LCD DIALOG-DISPLAY.
Pairs of values:
TMPVAL X: Circulator temperature 1 or 2 or 3 (actual value TT )
The actual temperature of the bath is simultaneously saved with the “calibration value“ >CALVAL< and can be indicated for control purposes (value does not flash).
CALVAL X: Calibration temperature 1 or 2 or 3 (actual value CT )
The „calibration value“ is determined with a temperature measuring device and saved under menu item >CALVAL<.
(value flashes
)
52
HE / SE
Level 2
Parameter level
and .

9.7.4. Example: 3-point calibration for internal control

In the temperature range from 80 °C to 160 °C the calibration curve of the
temperature sensor (TT) is to be adjusted to the actual temperatures at measuring point (CT).
Menu level 1
80.00 °C
120.00 °C
160.00 °C
1. Set circulator to internal control: MENU CONTROL page 42
The type of control can be set only in the –OFF- mode.
2. Set working temperature setpoint – SETPNT:
Refer to „Direct temperature setting “ page 26
B y pressing the key >SETPOINT< see example on the left: >SETPNT / 1 25.00°C<.
The integer digits flash
Change the value to 80.00 °C by pressing the keys confirm by pressing the key
The decimal digits flash. Confirm once more by pressing the key
The bath is heated up. Wait for approx. 5 minutes until the temperature is constant.
the circulator switches to the active
(Example: <25>).
and and
.
.
Menu level 1
3. Reading of temperature measuring device
Read the value of measuring point CT on the device and enter under menu item >CALVAL X< by using the keypad.
4. Calibration
>CALVAL 1< (79.70 °C) >CALVAL 2< (119.50 °C) >CALVAL 3< (159.30 °C)
Press the key if parameter is to be retained. Correction function for
parameters or values (prior to OK).
Setting is required only for the first calibration point.
Set SENSOR INTERN:
The parameter flashes, switch by pressing and .
An ATC calibration is to be carried out. Set to >NO<
The parameter flashes, switch by pressing
53
Menu functions
A >3-point< calibration is carried out.
Return to 2. Set working temperature value SETPNT: 120.00 °C
Return to 2. set working temperature value SETPNT: 160.00 °C
The 3-point calibration is completed
The parameter flashes, switch by pressing and .
The value >TMPVAL< is only indicated In addition the measured value >CALVAL X< is saved
during the following step
I nteger digits flash, set by pressing (79) +
Decimal digits flash, set by pressing (70) +
The first of 3 points is calibrated.
The value is only indicated
I nteger digits flash, set by pressing
Decimal digits flash, set by pressing
The second of 3 points is calibrated.
The value is only indicated.
I nteger digits flash, set by pressing
Decimal digits flash, set by pressing
5. Return to standard operation
Se t >YES< after calibration.
(Standard operation)
(119) +
(50) +
(159) +
(30) +
54

9.8. MENU LIMITS - Begrenzungen

OK).
+
+
In case of external control these menu items are additionally indicated.
+
+
HE / SE
Menu level 1
Level 2 Parameter level
0 … 100 %
Press the Correction function for parameters or values (prior to
Integer digits flash, set by pressing
Decimal digits flash, set by pressing
I nteger digits flash, set by pressing
Decimal digits flash, set by pressing
The value flashes, set by pressing
key if parameter is to be retained.
+
+
+
The value flashes, set by pressing mit
0 … 100 %
I nteger digits flash, set by pressing
Decimal digits flash, set by pressing
I nteger digits flash, set by pressing
Decimal digits flash, set by pressing
The value flashes, set by pressing
The value flashes, set by pressing
+
+
+
+
+
55
Menu functions
bath fluid.

9.8.1. Limits for internal control

SETPOINT MAX / MIN – Maximum and minimum setpoint
Restriction of the adjustable temperature range. The limitation of the operating temperature range effects the temperature setting in the menu with the key
.
Only setting of working temperatures which lie within the determined limits is possible Existing settings for SETPNT 1, -2, -3, as well as those for >OVERTMP< and > SUBTMP < (refer to page 27), are automatically deferred into the limit range.
Setting range
SET MAX > SET MIN
Interchange of values is not possible.

9.8.2. Limits for external control

Set maximum heating / cooling
The heating and cooling capacity of the unit are adjustable. 100 % corresponds to the technical specification of the equipment.
Setting range:
HE AT MAX – 0 to 100 % in 1 % steps COOLING MAX – 0 to 100 % in 1 % steps
: -94,90 °C ... +300,0 °C
> SAFETMP <
INTERN MAX / MIN Restriction for the temperature range of the internal bath.
Setting range: -94,9 °C ... +300,0 °C The limits INT MAX and INT MIN are only active in external control. INT
MAX and INT MIN determine fixed limits for the temperature within the internal bath. The temperature controller cannot exceed these limits even if it would be necessary for achieving the temperature in an external system. Therefore it is possible that the external setpoint cannot be achieved.
Sense of limit setting:
Protects the bath fluid from overheating. Prevents an undesired alarm shutdown by the excess temperature
protection - >ALARM CODE 14<. Set the value of > INT MAX at least 5 °C below the value of >SAFETMP<.
Protects the pump motor from high viscosity of the bath fluid at low
temperatures.
For refrigerated circulators. Freezing protection when using water as
56
HE / SE
25
50
10203040506010203040506010
[min]
75
100
150
200
°C
t
external syst em
Internal bath
BAND HIGH
BAND LOW
Sense of a band limitation:
BAND HIGH / LOW – Band limitation
The band limitation is active during external control. Varied, practice­oriented setting are feasible for heat-up and cool-down phases.
Setting range: 0 °C ... 200 °C
BAND HIGH and BAND LOW allow for the limitation of the difference between the temperatures in the internal bath and the external system to any maximum value for the heat-up and cool-down phase. During the heat-up phase this difference value is always added to the actual external temperature. During the cool-down phase the difference value is subtracted.
Protection of objects and samples
by gentle temperature control
Protection of e.g. glass reactors
from thermal shock.
57
Menu functions
ALARM
REG+
E-PROG
STAND-BY
Level 2
Level 3
Parameter level
+

9.9. MENU IN/OUT – Analog inputs/outputs (Option)

In order to use the analog inputs and outputs, the circulator must be equipped with the electronic module available as option. Order No. 8 900 100 Electronic module
This submenu enables setting of the input and output values for the programmer input and the temperature recorder outputs of socket REG+E-
Menu level 1
PROG. The >STAND-BY< input and the >ALARM< output are configurable.
Press the ke y if parameter is to be retained. Correction function for
parameters or values (prior to OK).
The parameter flashes,
switch by pressing
and
ACTINT [°C] internal actual temperature value (bath temperature)
ACTEXT [°C] external actual temperature value (external sensor)
S-POINT [°C] active setpoint temperature
POWER [%]
Integer digits flash, set by pressing
+
Decimal digits flash, set by
pressing
58
The parameter flashes,
switch by pressing
and
HE / SE
Level 2
Level 3
Parameter level
Integer digits flash, set by pressing
+
Decimal digits flash, set by pressing
+
The parameter flashes,
switch by pressing
and
Integer digits flash, set by pressing
+
Decimal digits flash, set by pressing
+
The parameter flashes,
switch by pressing
and
The parameter flashes,
or
switch by pressing
and
The parameter flashes, switch by pressing
and
Define the indication of
or
VOLTAGE CURRENT
59
Menu functions
Level 2
Level 3
Parameter level
Lower VALue
or
Upper VALue
Integer digits flash, set by pressing
+
De c im a l d igits flash, set by pressing
+
The parameter flashes,
switch by pressing
and
The parameter flashes,
switch by pressing
and
The parameter flashes,
switch by pressing
and
60

9.9.1. Outputs of the connector - REG+E-PROG

CHANNEL 1
CHANNEL 3
CHANNEL 2
REG+E-PROG
EPROG
0 V
0 mA
20 mA
4 mA
10 °C
210 °C
197 °C
202 °C
∆ Τ =
5 K
∆ Τ =
200 K
REG+E-PROG :
1. Select CHANNEL 1, 2 or 3
2. First define the desired output value for CHANNELs 1 to 3:
HE / SE
1.
2.
3.
internal actual temperature value (bath temperature))
external actual temperature value (external sensor)
periodic or intermittent heating or cooling
active setpoint temperature
(SETPoint 1, 2, 3,/ integr. programmer /external programmer)
3. Then select the display size for CHANNELs 1 to 3:
Voltage outputs CHANNELs 1 and 2
Assign the voltage values of 0 V to the lowest and 10 V to the highest necessary temperature (°C) or power rating (%) required as an output value. CHANNEL 3: Output for temperature value (°C) / power (%) The current output (channel 3) offers 2 ranges for selection:
0 mA to 20 mA or 4 mA to 20 mA
Assign the current values 0 mA or 4 mA to the lowest and 20 mA to the highest temperature (°C) or power rating (%) required as an output value.
or
Example 1:
lowest temperature value: 10 °C highest temperature value 210 °C
Fig. shows 200 °C scaled to paper width rise: 50 mV/°C Example 2: lowest temperature value: 197 °C highest temperature value: 202 ° C Fig. shows 5 °C scaled to paper width rise: 2000 mV/°C
61
Menu functions
CHANNEL 1
CHANNEL 3
CHANNEL 2
REG+E-PROG
EPROG

9.9.2. Input of the connector - REG+E-PROG

Setting needs to be carried out, if
1. setpoint programming is to be made via an external voltage or
current source or programmer. For this, in the menu > MENU / CONFIG < first set the menu item > SETP < to >EPROG<.
>FLOWRAT< Indication on display
> >
2. the heater variable should be controlled via an external control pulse.
For this, in the menu > MENU / CONFIG < set the menu item >ACTVAR< to >EPROG<.
> > (refer to page 41).
3. the signal of an external flow meter should be registered.
>FLOWRAT< see below.
FLOWRAT The E-Prog input can only be used either under menu item >CONFIG
-SP EXT< < or under menu item >CONFIG ACTVAR< If the input is neither occupied by > SP EXT < or > ACTVAR <, the signal of a flow meter can be connected.
First set >MENU CONFIG<
> >
then >MENU IN/OUT<
Beispiel:
Settings on input - E-PROG
1. Connect the external voltage or current source or programmer to
socket REG+E-PROG of the circulator.
2. Selecting the signal:
The programmer (E-PROG) input of the circulator can be matched to the output signal of the external voltage or current sourc e.
> >
voltage input = U
curr ent input = I
3. Define the input variable:
with an external control pulse
Setpoint programmed by external voltage or current
Manipulated (ACTuated) variable for the heater
62
Signal of an external flow sensor
HE / SE
Examples:
20
40
60
80
100
200
300
250
150
°C
1 2 3 4 5 6 7 8 9 10 V 2 4 6810 14 18 20 mA
A
B
4. – Setting the LOW value: (See below )
First adjust and set the lowest voltage or current on the external voltage or current source (e.g. 0 V or 0 mA). Then after approx. 30 secs enter the corresponding temperature value (e.g. 20.00 °C).on the circulator by pressing
5. – Setting the HIGH value: (See below )
and
First adjust and set the highest voltage or current on the external voltage or current source (e.g. 10 V or 20 mA). Then after approx. 30 secs enter the corresponding temperature value (e.g. 300 °C).on the circulator by pressing
and
Example:
Set the external voltage or current source output for the equivalent of 50 °C temperature setpoint.
Press The temperature value adjusted and set on the external voltage or current source is displayed in line 2 of the VFD COMFORT-DISPLAY for control purposes. (Example: SP 50.00 °C).
- to standard display.
This EPROG input enables the use of different voltage and current values as program parameters.
– Setting the LOW value: (See below )
1. Adjust and set the lowest desired value on the voltage or
current source resp. (Example A: 1 V). Wait appr. 30 seconds.
2. Assign a lower temperature threshold value to this adjusted
voltage/current value by pressing the appropriate buttons on the keypad of the instrument (Example A: 20 °C ) and set by
pressing
– Setting the Upper value: (See below )
1. Adjust and set the highest desired value on the voltage or
current source resp. (Example A: 10 V). Wait appr. 30 seconds.
2. Assign an upper temperature threshold value to this adjusted voltage/current value by pressing the appropriate buttons on the keypad of the instrument (Example A: 200°C)
and set by pressing
.
.
Example B in the diagram serves to illustrate that the end
point values are freely selectable (Ex: 8 mA and 16 mA).
63
Menu functions
Notice:
Important:
(working temperature range see technical specifications)
Example out of diagram A:
Adjusting the voltage source for an output of 7.6 V!
The instrument calculates this value from the rise angle of the two
If this adjustment is not correctly performed at two different points, the setpoint setting will be incorrect.
The usable temperature range between > LVAL < and > UVAL < is limited to the configured working temperature range of the circulator resp. of the unit combination

9.9.3. ALARM-output / Stand-by-input

predecided end points (in example A: 7.6 V correspond to an external setpoint temperature of 152.0 °C ).
After returning the VFD display to standard display, this value is displayed in line 2 (Example: SP 152.00 °C).
Alarm output (10) (for external alarm signal)
Possible parameters:
(STANDBY or ALARM or AL-STBY)
ALARM
This socket is a potential-free change-over contact. With the adjustments in the menu item > AL-OU T Function< all operating conditions can be signaled without having to change the pin assignments.
Signification of the terms under menu item >Function< : The circulator is in condition >STANDBY< or >ALARM< or >AL-STBY< -
both conditions are signaled.
Alarm-TYPE Possible parameters:
( NORMAL or INVERS )
For >TYPE- NORMAL< pins 2 and 3 are connected in any case according to the selected > AL-OUT Function<
For >TYPE- INVERS < pins 2 and 1 are connected in any case according to the selected > AL-OUT Function<
64
Switching capacity max. 30 W / 40 VA Switching voltage max. 125 V/ Switching current max. 1 A
1
2
3
AK
EX-STBY: External Stand-by input
AK
1
2
3
STAND-BY
(for external switch-off)
HE / SE
STAND-BY
Possible parameters:
INACTIV - standby input is ignored ACTIV - st andby input is active
Activate the standby input:
1. Under menu item > EXT-STBY <, set the parameter to >ACTIV<.
2. Connect an external contact ‚AK‘ (e.g. for switch-off) or an alarm contact of the superordinated system.
In case the connection between Pin 2 and Pin 3 is interrupted by opening the contact ‚AK‘, a complete shutdown of the circulating pump and heater is effected, and the unit enters the condition „E OFF“. If the contact is reclosed, the instrument returns to the standby state and
E OFF“ is displayed. Press
Additional tips for using the STANDBY input:
The st andby function can be used in conjunction with the AUTOSTART feature
1. If the Autostart function is NOT turned ON, the standby input is used as described above.
2. If the Autostart function is enabled, the instrument will revert back to the original method of entering the setpoint (i.e. keypad, RS232, Analog input, etc.).
Entering the setpoint with the keypad. e.g. As described above, a bipolar shutdown is accompanied by displaying the „E OFF“ state. The circulator starts again when the contact is reclosed. The temperature of the bath fluid changed during the „E OFF“ state.
to start.
Entering the setpoint with the programmer. The display E OFF appears. The setpoint value and the time are both held at the current value. The temperature of the bath fluid will be held constant at this temperature. The programmer continues once the contact is reclosed. Notice: This is not an actual shutoff feature.
65

Troubleshooting guide / error messages

+
Repair by authorized JULABO service personnel.
Reconnect the control line or repair short-circuit.
Type of warning: set to >warning< or >alarm< (refer to page 29)
Typ of warning: set to >warning< or >alarm< (refer to page 29)
Cable of working temperature sensor is disconnected or short-circuited.
10. Troubleshooting guide / error messages
Alarm with complete shutdown:
If one of the following failures occur a complete, all-pole shutdown of the heater and circulating pump is effected.
“ lights up and a continuous signal sounds.
„ The code for the cause of alarm is indicated on the VFD COMFORT­DISPLAY.
Alarm without shutdown:
The code for the cause of alarm is indicated on the VFD COMFORT­DISPLAY. The warning signal sounds in regular intervals. The messages appear every 10 seconds.
Press the key
Error message with ticker: >LOW LEVEL ALARM-FILL MEDIUM < Low level alarm The circulator is operated without or insufficient bath fluid.
Switch the unit off with the mains switch, refill bath fluid and switch on! Tube breakage has occurred (insufficient filling level of bath fluid caused by
pumping-out) Replace the tubing and refill bath liquid.
The float is defect (e.g. transport damage).
Error message with ticker: > REFRIGERATOR ALARM-CHECK CONNECTION < During the self-test after swi tc h -on a short –circuit is detected between pin 2 and pin 4 of the control line or the control line was disconnected during operation.
Error message with ticker: > EXCESS TEMPERATURE WARNING-CHECK LIMITS < Excess temperature warning or Excess temperature alarm
to stop the signal
Error message with ticker:
66
> LOW TEMPERATURE WARNING-CHECK LIMITS < Low temperature warning or Low temperature alarm.
Error message with ticker: > WORKING SENSOR ALARM-CALL SERVICE <
HE / SE
Other errors
defect.
short-circuited
60
30
1545
4 s
By quickly switching off and restarting the unit the alarm is cancelled.
In this case please call the JULABO Technical Service or an authorized dealer.
Error message with ticker: >SENSOR DIFFERENCE ALARM-CHECK VISCO SITY AND PUMP STAGE< Defec t of working or exce ss temp erature protector. Working temperature sensor and excess temperature protector report a temperature difference of more than 35 K.
Error message with ticker: > INTERNAL HARDWARE ERROR-CALL SERVICE <
Error in A/D converter
Error message with ticker: > EXCESS TEMPERATURE PROTECTOR ALARM-CHECK ADJUSTMENT <
Excess temperature protector defect. The protection temperature is below the set working temperature setpoint.
Set the protection temperature to a higher value.
Error message with ticker: > EXTERNAL SENSOR ALARM-CHECK EXTERNAL SENSOR <
External control was set but the Pt100 external senor was not connected or is
Error message with ticker: > SAFETY SENSOR ALARM-CALL SERVICE <
The cable of the excess temperature protector has been disconnected or
Ext. Pt100 sensor input without signal, but setpoint programming set to external Pt100.
Error message with ticker: > LOW LEVEL WARNING-FILL MEDIUM <
The early warning system for low level reports a critical fluid level. Refill bath fluid.
If the error occurs once more after the restart, a remote diagnosis is required.
Error message with ticker: > CONFIGURATION ERROR-PRESS OK<
The configuration of the circulator does not correspond with its current application.
Press the configuration.
key for a non-recurring, au tomatic change of the
67
Troubleshooting guide / error messages
Warning:
Only use fine fuses with a nominal value as specified.
Manufacturer
Supplier
Type
Order No.
Schurter
Schurter
G-fuse insert SPT T16A 5x20mm
No. 0001.2516
Wickmann
Wickmann
G- fuse insert T10,0A 5x20 mm
No. 19195
Disturbances that are not indicated.
The electronic pump motor is overload-protected by an electronic current limiter. If viscosity of the bath fluid is or becomes too high, the motor stops running.
Before exchanging the fuses, turn off the mains power switch and disconnect the power plug from the mains socket!
Fuses: The mains fuses on the rear of the unit may easily be exchanged as
shown on the left. Fine fuses (16)– T 16 A
Example:
68
cellular phones).
4
1
3
2
1
4
2
3
Shield Plug
Look on
soldering side.
Pt100
remote control of the circulator.
9 6
5
1
RS232 interface cable
8 980 073
RS232 interface cable 9-pol./9-pol. , 2,5 m
8 900 110
USB interface adapter cable
11. Electrical connections
Notice:
Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. The unit ensures safe operation if connecting cables with a maximum length of 3 m are used. The use of longer cables does not affect proper performance of the unit, however external interferences may have a negative impact on safe operation (e.g.
Socket for external Pt100 sensor
Pin assignment:
ext. Pt100
Pin Signal 1 I+ 2 U+ 3 U­ 4 I-
The shield of the connecting cable is electrically connected to the plug housing and the sensor tube.
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RS232C
Accessories: Order No. Description
RS232 serial interface
This port can be used to connect a computer with an RS232 cable for
Pin assignments RS232: Pin 2 RxD Receive Data
Pin 3 TxD Transmit Data Pin 5 0 V Signal GND Pin 7 RTS Request to send Pin 8 CTS Clear to send
Pin 1; 4; 6, 9 Reserved - do not use!
Circulator (9-pol) PC (9-pol) Pin 2 RxD Pin 3 TxD Pin 3 TxD Pin 2 RxD Pin 5 GND Pin 5 GND Pin 7 RTS Pin 8 CTS Pin 8 CTS Pin 7 RTS
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Electrical connections
AK
1
2
3
STAND-BY
1
2
3
4
5
6
/ Control output
The connector may only be used for control of a JULABO refrigerated circulator or JULABO MVS Solenoid valve controller for cooling water.
Pin assignment: Pin Sig nal (only with attached JULABO equipment)
1 +24 V (I max. current 25 mA) 2 0 V 3 Alarm relay 4 Reserved - do not use! 5 Cooling pulse
Alarm output
(for external alarm signal) This potential-free change-over contact is activated in case of an alarm
when pins 2 and 3 are connected.
Switching capacity max. 30 W / 40 VA Switching voltage max. 125 V/ Switching current max. 1 A
ALARM
Functional description see page 64
STAND-BY input
(for external emergency switch-off) Pin assignment: Pin Signal
1 not connected 2 5 V / DC 3 0 V
Functional description see page 6
Programmer input / temperature recorder output
Pin Signal 1 Voltage output Channel 1 0 ... 10 V
REG+E-PROG
2 Voltage output Channel 2 0 ... 10 V 3 GND for outputs 0 V 4 Programmer input EPROG 0 to 10 V / 0 to 20 mA 5 Current output Channel 3 0 to 20 mA / 4 to 20 mA 6 GND for Progamm er 0 V
Functional description see page 61
70
12. Remote control
9 6
5
1
3. Connect both units with an interface cable..
Like all parameters which can be entered through the keypad, interface parameters are stored in memory even after the circulator is turned off.
If the circulator is put into remote control mode via the configuration level, the
In remote control mode, the start command and all values to be set must be
A transfer sequence c onsists of:
To ensure a safe data transfer, the time gap between two commands should
The out commands are valid only in remote control mode.
Response from the circulator: 55.5
12.1. Setup for remote control
1. Check the interface parameters for both interfaces (on circulator and PC) and make sure they match.
RS232C
(Serial interface refer to page 48)
2. In the menu > MENU CONFIG < set
HE / SE
the menu item
12.2. Communication with a PC or a superordinated da ta system
VFD COMFORT-DISPLAY will read “R -OFF-” = REMOTE STOP. The circulator is now operated via the computer. In general, the computer (master) sends commands to the circulator (slave). The circulator sends data (including error messages) only when the computer sends a query.
resent by the PC via the interface in case of a power interruption. AUTOSTART is not possible.
to
.
command
space (
; Hex: 20)
parameter (decimal separation with a period)
end of file (↵; Hex: 0D)
The commands are divided into in and out commands. in commands: retrieve parameters out commands: set parameters
Important times for a command transmission:
be at least 250 ms. The circulator automatically responds to an in command with a data string followed by a LF (Line Feed). The next command should only be sent after 10 ms.
Command to set the working temperature > SETPNT 1< to 55.5 °C OUT_SP_00 55.5 Command to retrieve the working temperature > SETPNT 1< IN_SP_00
71
Remote control
Temperature control by using the stored parameters.
Single selftuning of controlled system after the next start.
setpoint is to be reached.
Voltage 0 V ... 10 V
Current 0 m A ... 20 mA
-99.99 ... +100 [%]
12.3. List of commands
OUT commands: Setting temperature values or parameters.
Command Parameter Response of circulator OUT_MODE_01 0 Use working temperature > SETPNT 1< OUT_MODE_01 1 Use working temperature > SETPNT 2< OUT_MODE_01 2 Use working temperature > SETPNT 3< OUT_MODE_02 0 Selftuning „off“.
OUT_MODE_02 1 Selftuning „once“
OUT_MODE_02 2 Selftuning „always“
Continual selftuning of controlled system whenever a new
OUT_MODE_03 0 Set external programmer input to voltage.
OUT_MODE_03 1 Set external programmer input to current.
OUT_MODE_04 0 Temperature control of internal bath. OUT_MODE_04 1 External control with Pt100 sensor. OUT_MODE_05 0 St op t he unit = R –OFF-. OUT_MODE_05 1 St ar t the unit. OUT_MODE_08 0 Set the control dynamics - aperiodic OUT_MODE_08 1 Set the control dynamics - standard
OUT_SP_00 xxx.xx Set working temperature. „SETPNT 1“ OUT_SP_01 xxx.xx Set working temperature. „SETPNT 2“ OUT_SP_02 xxx.xx Set working temperature. „SETPNT 3“
OUT_SP_03 xxx.xx Set high temperature warning limit „OverTemp“ OUT_SP_04 xxx.xx Set low temperature warning limit „SubTemp“ OUT_SP_06 xxx.xx Set manipulated variable for the heater via serial interface
OUT_SP_07 x Set the pump pressure stage. (1 ... 4) OUT_PAR_04 x.x CoSpeed for external control 0 ... 5.0 OUT_PAR_06 xxx Xp control parameter of the internal controller. 0.1 ... 99.9 OUT_PAR_07 xxx T n control parameter of the internal controller. 3 ... 9999 OUT_PAR_08 xxx T v control parameter of the internal controller. 0 ... 999 OUT_PAR_09 xxx Xp control parameter of the cascade controller. 0.1 ... 99.9 OUT_PAR_10 xxx Proportional portion of the cascade controller. 1 ... 99.9 OUT_PAR_11 xxx Tn control parameter of the cascade controller. 3 ... 9999
72
HE / SE
used.
(REG+E-PROG) .
after start.
sensor
Command Parameter Response of circulator OUT_PAR_12 xxx T v control parameter of the cascade controller. 0 ... 999 OUT_PAR_13 xxx Maximum int ernal temperature of the cascade controller. OUT_PAR_14 xxx Minimum inter nal temperature of the cascade controller. OUT_PAR_15 xxx Band limit (upper) 0 .. . 200 °C OUT_PAR_16 xxx Band limit (lower) 0 ... 200 °C OUT_HIL_00 -xxx Set the desired maximum cooling power (0 % to 100 %).
Note: Enter the value with a preceding negative sign! This adjustment only makes sense if FP refrigerating units are
OUT_HIL_01 xxx Set the desired maximum heating power (10 % to 100 %).
IN commands: Asking for parameters or temperature values to be displayed.
Command Parameter Response of circulator VERSION none Number of software version (V X.xx)
STATUS none Status message, error message (see page 75) IN_PV_00 none Actual bath temperature. IN_PV_01 none Heating power being used (%). IN_PV_02 none Temperature value registered by the external Pt100 sensor. IN_PV_03 none Temperature value registered by the safety sensor. IN_PV_04 none Setpoint temperature of the excess temperature protection
IN_SP_00 none Working temp erature „SETP 1“ IN_SP_01 none Working temperature „SETP 2“ IN_SP_02 none Working temperature „SETP 3“ IN_SP_03 none High temperature warning limit „OverTemp“ IN_SP_04 none Low temperature warning limit „SubTemp“ IN_SP_05 none Setpoint temperature of the external programmer
IN_SP_07 none 1. Adjusted pump stage in the -OFF- condition.
IN_SP_08 none Value of a flowrate sensor connected to the E-Prog input
IN_PAR_00 none Temperatur e difference between working sensor and safety
IN_PAR_01 none Te - Time constant of the external bath. IN_PAR_02 none Si - Internal slope IN_PAR_03 none Ti - Time constant of the internal bath.
2. Pump stage corresponding to the effective rotation speed
73
Remote control
temperatures in the internal bath and external system).
Ratio of max. cooling capacity versus max. heating capacity
controller.
controller.
through an external programmer
2 = Selftuning „alwayS“
1 = Current 0 mA to 20 mA
1 = Temperature control with external Pt100 sensor.
1 = Start
1 = standard
Command Parameter Response of circulator IN_PAR_04 none CoSpeed - Band limit (max. difference between the
IN_PAR_05 none Factor pk/ph0:
IN_PAR_06 none Xp control parameter of the internal controller. IN_PAR_07 none Tn control parameter of the internal controller. IN_PAR_08 none Tv control parameter of the internal controller. IN_PAR_09 none Xp control parameter of the cascade controller. IN_PAR_10 none Proport ional portion of the cascade controller. IN_PAR_11 none Tn control parameter of the cascade controller. IN_PAR_12 none Tv control parameter of the cascade controller. IN_PAR_13 none Adjust ed maximum internal temperature of the cascade
IN_PAR_14 none Adjust ed minimum internal temperature of the cascade
IN_PAR_15 none Band limit (upper) IN_PAR_16 none Band limit (lower) IN_MODE_01 none Select ed setpoint:
0 = SETP 1 1 = SETP 2 2 = SETP 3 3 = Last setpoint setting was carried out
IN_MODE_02 none Selftuning type:
0 = Selftuning „off“ 1 = Selftuning „once“
IN_MODE_03 none Type of the external programmer input:
0 = Voltage 0 V to 10 V
IN_MODE_04 none Internal/external temperature control:
0 = Temperature control with internal sensor.
IN_MODE_05 none Circ ulator in Stop/Start condition:
0 = Stop
IN_MODE_08 none Adj us t ed control dynamics
0 = aperiodic
IN_HIL_00 none Max. cooling power (%). IN_HIL_01 none Max. heating power (%).
74

Status messages

00 MANUAL STOP
Circulator in „OFF“ state.
01 MANUAL START
Circulator in keypad control mode.
02 REMOTE STOP
Circulator in „r OFF“ state.
03 REMOTE START
Circulator in remote control mode.
-05 WORKING SENSOR ALARM
-07 I2C-BUS ERROR
Internal error when reading or writing the I2C bus.
-10 VALU E TOO SMALL
-13 WARNING : VALUE EXCEEDS
-14 EXCESS TEMPERATURE
-15 EXTERNAL SENSOR ALARM 1 DOES NOT WORK
12.4. Status messages
12.5. Error messages
HE / SE
Description

Error messages

-01 LOW LEVEL ALARM
-02 REFRIGERATOR ALARM
-03 EXCESS TEMPERATURE WARNING
-04 LOW TEMPERATURE WARNING
-06 SENSOR DIFFERENCE ALARM
-08 INVALID COMMAND
-09 COMMAND NOT ALLOWED IN CURRENT OPERATING MODE
-11 VALUE TOO LARGE
-12 TEMPERATURE MEASUREMENT ALARM
Description Low liquid level alarm. Control cable of the refrigerated circulator or MVS
solenoid valve controller short-circuited or interrupted. High temperature warning.
Low temperature warning. Working temperature sensor short-circuited or interrupted. Sensor difference alarm.
Working temperature and safety sensors report a temperature difference of more than 35 K
Invalid command. Invalid command in current operating mode.
Entered value too small. Entered value too large. Error in A/D converter.
TEMPERATURE LIMITS
PROTECTOR ALARM
-20 WARNING: CLEAN CONDENSOR OR CHECK COOLING WATER CIRCUIT OF REFRIGERATOR
-21 WARNING: COMPRESSOR STAGE
-22 WARNING: COMPRESSOR STAGE 2 DOES NOT WORK
Value lies outside the adjusted range for the high and low temperature warning limits. But value is stored.
Excess temperature protector alarm External control selected, but external Pt100 sensor not
connected. Cooling of the condenser is affected.
Clean air-cooled condenser. Check the flow rate and cooling water temperature on water-cooled condenser.
Compressor stage 1 does not work.
Compressor stage 2 does not work.
75

Installation of electronic module

Error messages
-23 WARNING: HIGH TEMPERATURE PROGRAMMING ALARM
Caution:
carried out by qualified personnel.
ALARM
REG+
E-PROG
STAND-BY
A
B
ON COMPRESSOR STAGE 1
Description Excess temperature on compressor stage 1.
-24 WARNING: HIGH TEMPERATURE
Excess temperature on compressor stage 2.
ON COMPRESSOR STAGE 2
-25 REFRIGERATOR WARNING
-26 WARNING: STAND-BY PLUG IS MISSING
-30 CONFIGURATION ERROR: CONFIRM BY PRESSING <OK> ON CIRCULATOR
Error in the cooling machine. External standby contact is open.
(see page 64 and 70) The configuration of the circulator does not conform to its
present use. Press >OK< to automatically perform a single modification of the configuration.
-33 SAFETY SENSOR ALARM Excess temperature sensor short-circuited or interrupted.
-38 EXTERNAL SENSOR SETPOINT
Ext. Pt100 sensor input without signal and setpoint programming set to external Pt100.
-40 NIVEAU LEVEL WARNUNG
Low liquid level warning in the internal reservoir.
13. Installation of electronic module
Always turn off the unit and disconnect the mains cable from the power source before performing any service or maintenance procedures, or before moving the unit. Configuration, installation, maintenance and repairs on the circulator may only be
Turn off the unit with the mains switch and disconnect the power plug.
O pen the screws (A) and remove the dummy plate.
Car ef ully insert the upper edge (B) into the rear panel from
below, align the electronic module at top and bottom and applying light pressure connect the 15-pole connector.
At t ac h the electronic module using the screws (A).
The circulator is ready for use. It automatically recognizes the
installed electronic module.
76
settings are made.
14. JULABO Service – Online remote diagnosis
HE / SE
JULABO circulators of the HighTech series are equipped with a black box. This box is implemented in the controller and records all significant data for the last 30 minutes. In case of a failure, this data can be read out from the unit by using special software. This software is available as a free download from www.julabo.com
I ns t allation is easy and is performed step by step. Please observe the instructions.
Dat a r ead-out is possible in the conditions “OFF”, “R OFF” or “ALARM”.
Connect the circulator to the computer using an interface cable.
St ar t t he EasyBlackBox program.
The program asks for the port used (COM1, ......) and the baud
rate of the unit. You do not have this information on hand? Simply try it out! The program continues to send the request until the correct
Dat a is read out and shown on the monitor divided into the sections >Einstellungen/Settings<, >Alarmspeicher/Alarms stored<, >Blackbox<
see example
Af t er pr essing >Speichern/Save<, a text file is created. The program suggests a filename ­>C:\model description and barcode no.<. Modifications are possible.
E-mail this file to service.de@julabo.com JULABO's service department. JULABO is thus able to provide rapid support.
\ EasyBlackBox.
,
77

Cleaning / repairing the unit

Caution:
personnel only.
insufficient packing.
JULABO reserves the right to carry out technical modifications with repairs for providing improved performance of a unit.
15. Cleaning / repairing the unit
Always turn off the unit and disconnect the mains cable from the power source
before cleaning the unit.
Prevent humidity from entering into the circulator.
Electrical connections and any other work must be performed by qualified
Cleaning:
For cleaning the bath tank and the immersed parts of the circulator, use low surface tension water (e.g., soap suds). Clean the outside of the unit using a wet cloth and low surface tension water.
The circulator is designed for continuous operation under normal conditions. Periodic maintenance is not required.
The tank should be filled only with a bath fluid recommended by JULABO. To avoid contamination, it is essential to change the bath fluid from time to time.
Repairs Before asking for a service technician or returning a JULABO
instrument for repair, please contact an authorized JULABO service station.
When returning the unit:
Clean the unit in order to avoid any harm to the service personnel.
At t ac h a short fault description.
Dur ing tr ansport the unit has to stand upright. Mark the packing
correspondingly.
When returning a unit, take care of careful and adequate packing.
JULABO is not responsible for damages that might occur from
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