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

English

OPERATING MANUAL

Heating Circulators

HE-4

SE-6

SE-12

SE-26

Bridge Mounted

Circulator

SE-Z

		JULABO GmbH
		77960 Seelbach / Germany
		Tel.	+49 (0) 7823	/ 51-0
		Fax	+49 (0) 7823	/ 24 91
1.951.2442-V4	03/16	[e-mail]
		www.julabo.com

19512442-V4.doc

21.03.16

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

Temperature control devices for research and industry are developed, produced, and distributed according to the requirements of ISO 9001 and ISO 14001. Certificate Registration No. 01 100044846

Unpacking and inspecting

Unpack the 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

HE / SE

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
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.		Setting of temperatures .................................................................................		25
7.1.		Using the pre-settings in the	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 - Setting of pump 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 / EXTERNAL...................................................	44
9.5.2.SELFTUNING.....................................................................................................	45
9.5.3.Dynamic internal.................................................................................................	45
9.5.4.Control parameters– XP-, TN-, TVINTERNAL ..................................................	46
9.5.5.COSPEED - external ..........................................................................................	47
9.5.6.Control parameters – XPU-, XP-, TN-, TVEXTERNAL......................................	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. Electrical connections..................................................................................................	69
12. Remote 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. Installation of electronic module...................................................................................	76
14. JULABO Service – Online remote diagnosis................................................................	77
15. Cleaning / repairing the unit.........................................................................................	78

4

HE / SE

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).

JULABO circulators are not suitable for direct temperature control of foods, semiluxury foods and tobacco, or pharmaceutical and medical products.

Direct temperature control means unprotected contact of the object with the bath medium (bath fluid).

1.1.Description

1x10

ICC

TCF

ATC3

RS232

Pt100

SMART

PUMP

 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.

 Temperatureand 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 responsibility – Safety recommendations

The products of JULABO ensure safe operation when installed, operated, and maintained according to common safety regulations. This section explains the potential dangers that may arise when operating the 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	JULABO GmbH	Tel.	+49 (0) 7823	/ 51-0
	Gerhard-Juchheim-Strasse 1	Fax	+49 (0) 7823	/ 24 91
	77960 Seelbach / Germany	[e-mail]
		www.julabo.com

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.

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.

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HE / SE

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	Warning label W00: Colors: yellow, black
	Danger area. Attention! Observe instructions.
	(operating manual, safety data sheet)
2	Mandatory label M018:	Colors: blue, white

Carefully read the user information prior to beginning operation.

Scope: EU

or

2 Semi S1-0701 Table A1-2 #9

Carefully read the user information prior to beginning operation.

Scope: USA, NAFTA

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.

Warning label W26: Colors: yellow, black

Hot surface warning.

(The label is put on by JULABO)

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.

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.

Valid in EU countries

See the current official journal of the European Union – WEEE directive. Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE).

This directive requires 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 waste is not permitted!

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

2.4.Technical specifications

Heating circulators

HE-4

SE-6

SE-12

SE-26

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

13x15

13x15

22x15

22x30

Bath depth

cm

15

20

20

20

Filling volume

liters

3 ... 4,5

4,5 ... 6

7,5 ... 12

18 ... 26

Overall dimensions (WxDxH)

cm

21x42x40

21x43x44

30x43x47

36x61x47

Weight

kg

11

13,5

14,0

27,0

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

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.

				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
ATC3		INT/EXT	°C	±3 / ±9	±3 / ±9
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. pressureat 0 liters			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

10

HE / SE

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	float 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
Caution:

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

Operating instructions

3.Safety notes for the user

3.1.Explanation of safety notes

In addition to the safety warnings listed, warnings are posted throughout the operating 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.

Read and follow these important instructions for averting dangers.

Warning:

Describes a possibly highly dangerous situation. If these instructions are not followed, serious injury and danger to life could result.

Caution:

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.

Notice:

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

Note!

Draws attention to something special.

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.

12

HE / SE

3.3.Safety recommendations

Follow the safety instructions to avoid personal injury and property damage. Also, the valid safety instructions for workplaces must be followed.

•Only connect the unit to a power socket with an earthing contact (PE – protective earth)!

•The power supply plug serves as a safe disconnecting device from the line and must always be easily accessible.

•Place the unit on an even surface on a base made of nonflammable material.

•Do not stay in the area below the unit.

•Make sure you read and understand all instructions and safety precautions listed in this manual before installing or operating your unit.

•Set the excess temperature safety installation at least 25 °C below the fire point of the bath fluid.

•Observe the limited working temperature range when using plastic bath tanks.

•Never operate 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.

•Prevent 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 suitable connecting tubing.

•Avoid sharp bends in the tubing, and maintain a sufficient distance from surrounding walls.

•Make sure that the tubing is securely attached.

•Regularly check the tubing for material defects (e.g., for cracks).

•Never operate damaged or leaking units.

•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.

•Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit.

•Always empty the bath before moving the unit.

•Transport the unit with care.

•Sudden jolts or drops may cause damage in the interior of the unit.

•Observe all warning labels.

•Never remove warning labels.

•Never operate units with damaged mains power cables.

•Repairs are to be carried out only by qualified service personnel.

Some parts of the bath tank and the pump connections may become extremely hot during continuous operation. Therefore, exercise particular caution when touching these parts.

13

Safety notes for the user

Caution:

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

•environmentally 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.

•Are 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 determine the method of decontamination.

Notice: Check the safety installations at least twice a year!

•Excess temperature protection according to IEC 61010-2-010.

With a screwdriver turn back the adjustable excess temperature protection until the 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 example.

14

HE / SE

4.Operating controls and functional elements

Front view

Rear view

1

2

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		to indicate further values in line 3
			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

FFlow rate in liters/minute

(providing EPROG input set to >Flowrate<)

*refer to >MENU/CONFIG<  >CONFIG / ACTVAR>

15

Operating controls and functional elements

2.1

2.2

2.3

4

4.1

4.2

Control indicators in the header:

Heating / Cooling / Alarm /

Remote control

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 , under >MENU - PUMP<.

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 A beep signals the end of setting

After the actions Start, Stop and change from VFD Display to standard

display the key is locked for a short time.

The above graph “front side” shows an example for standard display.

1. Key: >Return< Stop (pump / heater )

2. >Return< in the menu one menu level down Correction function for parameters or values (prior to OK)

		immediately back to standard display
	-	icon for „keep key pressed down“.
4.3	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
4.4	Key: start the menu > warning and safety values<
4.5	Key: start the menu >temperature setpoints<
4.6	Key: display of MENU structure
6	Adjustable excess temperature protection according to IEC 61010-2-010

16

HE / SE

7		Socket for external measurement and control sensor
	ext Pt100	or external setpoint programming
8	SERIAL	Interface RS232: remote control via personal computer
9
		Socket: control cable of JULABO refrigerated circulator
		or output for alarm messages

Option: Electronic module		Order No. 8 900 100
10	Alarm output (for external alarm signal)
11	ALARM
	Standby input (for external emergency switch-off)
12	STAND-BY
	Programmer input and temperature recorder output
	REG+E-PROG
16	Mains fuses, T16A
17	Mains power cable with plug
20	Cooling coil connectors
21	Pump connectors		suction pump	pressure pump

17

Preparations

5.Preparations

5.1.Installation

Heating circulators

• Place the unit on an even surface on a base made of nonflammable material.

Bridge mounted circulator SE-Z

• 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

HE / SE

5.2.Bath fluids

Caution:

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 corrosion in the bath, even in stainless steel.

Recommended bath fluids:
		Bath fluid			Temperature range
		soft/decalcified water			5 °C to 80 °C
JULABO bath fluids
JULABO			Thermal	Thermal		Thermal
Description			G	M		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
Temperature 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			Thermal	Thermal		Thermal
Description			H10	H20S		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
Temperature 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

See website for list of recommended bath fluids.

ATTENTION:

The maximum permissible viscosity is 70 mm2 /s.

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.,

•are highly viscous

(much higher than recommended at the respective working temperature)

19

Preparations

•have a low viscosity and have creep characteristics

•have corrosive characteristics or

•tend to crack.

•No liability for use of other bath fluids!

5.3.Temperature application to external systems

	Securely attach all tubing to prevent slipping.
Caution:

If the circulator is operated without external system, close the pump connector (22) with the cap nut.

Temperature application to external, closed systems

ext	SERIAL	ALARM STAND-BY REG+
Pt100		E-PROG

T16A

T16A

21 22

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

S = Suction pump connection D = Pressure pump connection K = Float

H = Height adjustment

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:

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.

20

HE / SE

Return flow safety device

If the liquid levels in the circulator bath and the external system are at 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)

5.3.1.Tubing

Recommended tubing:
Order No.	Length			Temperature 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	Metal tubing, triple insulated, M16x1		-100 °C to +350 °C
8 930 210	1.0 m
8 930 211	1.5 m
8 930 214	3.0 m
8 930 220	0.5 m	Metal tubing, insulated, M16x1		-50	°C to +200 °C
8 930 221	1.0 m
8 930 222	1.5 m
8 930 223	3.0 m

Warning: Tubing:

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:

•Burning 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).

•Preventive maintenance: Replace the tubing from time to time.

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Preparations

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 protection.

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 rim

•Recommended maximum filling level with bath oils: 40 mm below the tank rim

After filling, 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

HE / SE

5.5.Countercooling

Caution:

Securely attach all tubing to prevent slipping.

Observe the laws and regulations of the water distribution company valid in the location where the unit is operated.

ext	SERIAL	ALARM STAND-BY REG+
Pt100		E-PROG

T16A

T16A

20

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		(10) and
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
FD200 Flow-through cooler
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.

23

Operating procedures

6.Operating procedures

6.1.Power connection

Caution:

•Only connect the unit to a power socket with earthing contact (PE – protective earth)!

•The power supply plug serves as safe disconnecting device from the line and must be always easily accessible.

•Never operate equipment with damaged mains power cables.

•Regularly check the mains power cables for material defects (e.g. for cracks).

•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.

6.2.Switching on / Start - Stop

6.2.1.Switching on the circulator

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 key.

The actual bath temperature is displayed on the VFD COMFORTDISPLAY. The circulating pump starts with a slight delay.

Stop:

Press key. or

Keep key pressed.

The VFD COMFORT-DISPLAY indicates the message "OFF".

24