JULABO FP45-HE User Manual

English

OPERATING MANUAL

Refrigerated and

Heating Circulators

FP45-HE

		JULABO GmbH
		77960 Seelbach / Germany
		Tel.	+49	(0)	7823 / 51-0
		Fax	+49	(0)	7823 / 24 91
1.951.2462-V2	09/14	[e-mail]
		www.julabo.de

19512462-V2.doc

22.09.14

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

TABLE OF CONTENTS
Operating manual................................................................................................................				5
1.	Intended use.................................................................................................................			5
1.1.		Description...............................................................................................................		5
2.	Operator responsibility – Safety recommendations			....................................................... 6
2.1.		Disposal ...................................................................................................................		8
2.2.		Warranty conditions .................................................................................................		8
2.3.		EC Conformity..........................................................................................................		9
2.4.		Technical specifications .........................................................................................		11
Operating instructions .......................................................................................................				13
3.	Safety notes for the user.............................................................................................			13
3.1. Explanation of safety notes ....................................................................................				13
3.2. Explanation of other notes......................................................................................				13
3.3.		Safety recommendations........................................................................................		14
4.	Operating controls and functional elements ................................................................			16
5.	Preparations ...............................................................................................................			19
5.1.		Installation..............................................................................................................		19
5.2.		Bath fluids ..............................................................................................................		19
5.3. Temperature application to external systems .........................................................				21
	5.3.1.Tubing ...............................................................................................................			22
5.4.		Filling / draining......................................................................................................		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
	6.2.2.Switching on the Cooling Machine .....................................................................			25
7.		Setting of temperatures.................................................................................		26
7.1.		Using the pre-settings in the	menu ...........................................................	26
7.2. Direct setting of temperatures ................................................................................				27
8.		Safety installations, warning functions...........................................................		28
8.1.		Excess temperature protection...............................................................................		28
	8.1.1.Early warning system, low level protection.........................................................			29
8.2. Switch-over from warning to shutdown function......................................................				30
8.3. Over and Sub temperature warning function ..........................................................				31
9.		Menu functions..............................................................................................		32
9.1. MENU PROGRAM – START..................................................................................				33
9.2.		MENU PROGRAM – creation, administration.........................................................		36

3

9.3. MENU PUMP - Setting of pump pressure ...............................................................	38
9.4. MENU CONFIG - Configuration of unit....................................................................	39
9.4.1.Remote control via the serial interface................................................................	40
9.4.2.Keypad control or setpoint setting via the analog input .......................................	41
9.4.3.AUTOSTART......................................................................................................	41
9.4.4.OFF-MODE ........................................................................................................	42
9.4.5.ACTVAR - actuating variable..............................................................................	42
9.4.6.Setting of clock and date ....................................................................................	43
9.4.7.RESET – Factory settings...................................................................................	43
9.5. MENU CONTROL – Control characteristics and parameters...................................	43
9.5.1.CONTROL – Control INTERNAL / EXTERNAL...................................................	45
9.5.2.SELFTUNING.....................................................................................................	46
9.5.3.Dynamic internal.................................................................................................	46
9.5.4.Control parameters– XP-, TN-, TVINTERNAL ..................................................	47
9.5.5.COSPEED - external ..........................................................................................	48
9.5.6.Control parameters – XPU-, XP-, TN-, TVEXTERNAL......................................	48
9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY...........................................	49
9.7. MENU ATC - Absolut Temperature Calibration .......................................................	50
9.7.1.ATC SENSOR - INTERNAL / EXTERNAL ..........................................................	52
9.7.2.ATC STATUS - YES / NO...................................................................................	52
9.7.3.CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT..............................................................	53
9.7.4.Example: 3-point calibration for internal control .................................................	54
9.8. MENU LIMITS.........................................................................................................	56
9.8.1.Limits for internal control.....................................................................................	57
9.8.2.Limits for external control....................................................................................	57
9.9. MENU IN/OUT – Analog inputs/outputs (Option).....................................................	59
9.9.1.Outputs of the connector - REG+E-PROG..........................................................	62
9.9.2.Input of the connector - REG+E-PROG ..............................................................	63
9.9.3.ALARM-output / Stand-by-input ..........................................................................	65
10. Troubleshooting guide / error messages......................................................................	67
11. Electrical connections..................................................................................................	70
12. Remote control ............................................................................................................	72
12.1. Setup for remote control..........................................................................................	72
12.2. Communication with a PC or a superordinated data system ...................................	72
12.3. List of commands....................................................................................................	73
12.4. Status messages ....................................................................................................	76
12.5. Error messages.......................................................................................................	76
13. Installation of electronic module...................................................................................	77
14. JULABO Service – Online remote diagnosis................................................................	78
15. Cleaning / repairing the unit.........................................................................................	79

4

HE

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
	Eisenbahnstraße 45	Fax	+49 (0) 7823	/ 24 91
	77960 Seelbach / Germany	[e-mail]
		www.julabo.de

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.

6

HE

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.

7

Operator responsibility – Safety recommendations

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.

These units contains refrigerants– at this time considered not to have any negative effects on the ozone layer. However, during the long operating period of the unit, disposal prescriptions may change. So only qualified personnel should take care of disposal.

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!

2.2.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.de, 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.

8

HE

2.3.EC Conformity

9

Operator responsibility – Safety recommendations

10

HE

2.4.Technical specifications

			FP45-HE
Working temperature range		°C	-42 ... 200
Temperature stability		°C	±0.01
Cooling capacity		°C	+20 0 -20 -30
Medium: ethanol		kW	0.85 0.7 0.42 0.08
Refrigerant			R-404A
Overall dimensions	(WxDxH)	cm	38x58x69
Bath opening	(WxL)	cm	23x26
Bath depth		cm	20
Filling volume		liters	18 ... 26
Weight		kg	53
Mains power connection	230 V/50 Hz	V/Hz	207-253/50-60
Current draw	(at 230 V)	A	13
Mains power connection	230 V/60 Hz	V/ Hz	207-253/50-60
Current draw	(at 230 V)	A	13

All measurements have been carried out at:

rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

			HE
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
ATC3	INT/EXT	°C	±3 / ±9
Temperature control			ICC - Intelligent Cascade Control
Heater wattage (at 230 V)		kW	2.0
Heater wattage (at 115 V)		kW	1.0
Electronically adj. pump capacity	stages		1 ... 4
Flow rate	at 0 bar	l/min	22 ... 26
Max. pressure	at 0 liters	bar	0.7
Max. suction	at 0 liters	bar	0.4
Electrical connections:			See page 12
Ambient temperature		°C	5 … 40

11

Operator responsibility – Safety recommendations

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).

12

HE

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.

13

Safety notes for the user

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.

14

HE

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.

15

Operating controls and functional elements

4.Operating controls and functional elements

Front view

Rear view

1a

1b

2

Mains power switch, illuminated

for circulator

Mains power switch, illuminated

for cooling machine

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<*

16

2.1

2.2

2.3

4

4.1

HE

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>

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.

4.2	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

17

Operating controls and functional elements

6	Adjustable excess temperature protection according to IEC 61010-2-010

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

16a

16b

17a

17b

18

19

20

21

22

Mains fuses for circulator, T16A

Mains fuses for cooling machine, T10A

Mains power cable with plug for circulator Mains power cable with plug cooling machine

Built-in mains outlet for connection of circulator

Drain screw with drain connection

Venting grid, removable

Pump connectors suction pump pressure pump

18

HE

5.Preparations

5.1.Installation

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

•The place of installation should be large enough and provide sufficient air ventilation to ensure the room does not warm up excessively because of the heat the instrument radiates to the environment. (Max. permissible ambient temperature: 40 °C).

With regard to a disturbance in the cooling loop (leakage), the guideline EN 378 prescribes a certain room space to be available for each kg of refrigerant.

The necessary amount of refrigerant is specified on the type

plate.

> For 0.52 kg of refrigerant R404A, a room space of 1 m3 is

required.

•Keep at least 20 cm of open space on the front and rear venting grid.

•Do not set up the unit in the immediate vicinity of heat sources and do not expose to sun light

•Before operating the unit after transport, wait about one hour after setting it up. This will allow any oil that has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compressor.

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.

19

	Preparations
	Recommended bath fluids:
		Bath fluid				Temperature range
		soft/decalcified water					5 °C to 80 °C
		mixture water/glycol, mixture 1:1				-20°C to 50°C
	JULABO bath fluids
	JULABO		Thermal	Thermal			Thermal
	Description		G	HY			H5
	Order Number	10 liters	8 940 124	8 940 104			8 940 106
		5 liters	8 940 125	8 940 105			8 940 107
	Temperature range	°C	-30 ... 80	-80 ... 55			-50 ...105
	Flash point	°C	--	78			124
	Fire point	°C	--	80			142
	Color		light yellow	clear			clear
	JULABO		Thermal				Thermal
	Description		H10				H20S
	Order Number	10 liters	8 940 114				8 940 108
		5 liters	8 940 115				8 940 109
	Temperature range	°C	-20 ... 180				0 ... 220
	Flash point	°C	190				230
	Fire point	°C	216				274
	Color		clear				light brown

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)

•have a low viscosity and have creep characteristics

•have corrosive characteristics or

•tend to crack.

•No liability for use of other bath fluids!

20

HE

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.

21

Preparations

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.

22

HE

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 that may be triggered when changing samples in the bath.

Draining

•Turn off the circulator and cooling machine.

•Hold the venting grid, pull out and remove.

•Slide a short piece of tube onto the drain port and hold it into a pail.

•Unscrew the drain tap (19) and empty the unit completely.

•Tighten the drain tap.

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.

•Connect the circulator with mains power cable (17a) to the mains outlet (18).

•Connect the control cable (9) between the connectors  (9a, 9b).

•Connect the refrigerated circulator with mains power cable (17b) to the mains socket.

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