Julabo 25-ME, F26-ME, F32-ME, F33-ME, F34-ME Operating Manual

English

OPERATING MANUAL

ME

Refrigerated and

Heating Circulators

F25-ME

F26-ME

F32-ME

F33-ME

F34-ME

FP40-ME

FP50-ME

water-cooled

FPW50-ME

JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109

Phone: [phone]

Fax: [phone] Translation of the Original Operating Manual info.us@ julabo.com www.julabo.com

19530512-V1.doc

14.03.16

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 to the full extent for us to guarantee our full support of your claim for protection against loss from concealed damage. The form required for filing such a claim will be provided by the carrier

1.953.0512-V3 03/16

Printed in Germany

Changes without prior notification reserved

Important: keep operating manual for future use

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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.		Technical specifications ....................................................................................................		9
2.3.		Cooling water connection .................................................................................................		13
Operating instructions .................................................................................................................				14
3.	Safety notes for the user.......................................................................................................			14
3.1. Explanation of safety notes ..............................................................................................				14
3.2. Explanation of other notes................................................................................................				14
3.3.		Safety recommendations..................................................................................................		15
4.	Operating controls and functional elements ..........................................................................			17
4.1.		Circulator..........................................................................................................................		17
4.2.		Cooling Machine ..............................................................................................................		19
5.	Preparations .........................................................................................................................			20
5.1.		Installation........................................................................................................................		20
5.2.		Bath fluids ........................................................................................................................		20
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

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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...................................................................		35
9.3. MENU PUMP – Setting of pump pressure........................................................................		37
9.4.	MENU CONFIG – Configuration of unit............................................................................	38
9.4.1.REMOTE.....................................................................................................................		39
9.4.2.AUTOSTART...............................................................................................................		39
9.4.3.OFF-MODE .................................................................................................................		40
9.4.4.Setting of clock and date .............................................................................................		40
9.4.5.RESET – Factory settings ...........................................................................................		40
9.5.	MENU CONTROL – Control characteristics and parameters ...........................................	41
9.5.1.CONTROL – Control INTERNAL / EXTERNAL............................................................		42
9.5.2.Dynamic internal..........................................................................................................		43
9.5.3.Control parameters – XPU-, XP-, TN-, TVEXTERNAL...............................................		43
9.5.4.Control parameters– XP-, TN-, TVINTERNAL ...........................................................		44
9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY....................................................		45
9.7. MENU ATC - Absolut Temperature Calibration ................................................................		46
9.7.1.ATC SENSOR - INTERNAL / EXTERNAL...................................................................		48
9.7.2.ATC STATUS - YES / NO............................................................................................		48
9.7.3.CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT ......................................................................		49
9.7.4.Example: 3-point calibration for internal control ..........................................................		50
9.8.	MENU LIMITS..................................................................................................................	52
9.8.1.Limits for internal control..............................................................................................		53
9.8.2.Limits for external control.............................................................................................		53
10. Troubleshooting guide / error messages...............................................................................		55
11. Electrical connections...........................................................................................................		58
12. Remote control .....................................................................................................................		59
12.1. Setup for remote control...................................................................................................		59
12.2. Communication with a PC or a superordinated data system ............................................		60
12.3. List of commands.............................................................................................................		61
12.4. Status messages .............................................................................................................		63
12.5. Error messages................................................................................................................		63
13. JULABO Service – Online remote diagnosis.........................................................................		65
14. Cleaning / repairing the unit..................................................................................................		66
15. WARRANTY PROVISIONS..................................................................................................		67

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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

PID3

ATC3

RS232

Pt100

SMART

PUMP

The circulators are operated via the splash-proof keypad. The microprocessor technology allows different values to be set, stored, and displayed on the VFD COMFORT-DISPLAY. Three menu keys facilitate the adjustment of setpoints, warning and safety functions, and menu functions.

Temperatureand time-dependent processes can be stored and executed using the integrated programmer.

The adjustable PID cascade temperature control automatically adjusts the heat supply to the thermal requirements of the bath.

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:

RS232 interface for modern process technology without an additional interface. Connection for external Pt100 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 excess temperature protection according to IEC 61010-2-010 is a safety device independent from the control circuit. Its safety value can be displayed and adjusted 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 according to IEC 61010-2-010 triggers a safety shutdown of the main functional elements.

Intelligent pump system: the pump capacity (electronically adjustable via the motor speed) can be adapted to different conditions for internal and external temperaturecontrol 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 USA, Inc.	Phone:	[phone]
	884 Marcon Boulevard	Fax:	[phone]
	Allentown, PA 18109	info.us@ julabo.com
			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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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 to the front of the unit so they are highly visible:

If this unit is intended for use within the United States of America, all 3 warning labels must be affixed to the housing of the unit prior to use.

Directions for the positioning of the individual warning labels are enclosed with the warning labels included in the delivery. Warning labels must be easily visible to users.

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

3	Warning label Proposition 65

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.

Contact an authorized waste management company in your country.

Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!

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2.2.Technical specifications

				F25-ME
Working temperature range		°C	-28 ... 200
Temperature stability		°C		±0,01
Cooling capacity		°C	+20 0 -20
Medium ethanol		kW	0.26 0.2 0.06
Refrigerant				R134a
Overall dimensions	(WxDxH)	cm		23x42x61
Bath opening	(WxL)	cm		12x14
Bath depth		cm	14
Filling volume	from ... to	liters		3 ... 4,5
Weight		kg	31
Mains power connection		V/ Hz	230 / 50
Current draw	(at 230 V)	A		12
Current draw	(at 230 V) CH	A	<9 + 2>
Mains power connection		V/ Hz	208-230 / 60
Current draw	(at 230 V)	A		12
Mains power connection		V/ Hz	115 / 60
Current draw	(at 115 V)	A	13
Mains power connection		V/ Hz	100 / 50/60
Current draw	(at 100 V)	A		13

				F26-ME		F32-ME
Working temperature range		°C	-28 ... 200		-30 ... 200
Temperature stability		°C	±0,01		±0,01
Cooling capacity		°C	+20 0 -20		+20		0	-20	-30
Medium ethanol		kW	0.26 0.2 0.06		0.45		0.39	0.15	0.05
Refrigerant				R134a		R134a
Overall dimensions	(WxDxH)	cm		42x42x42		31x42x64
Bath opening	(WxL)	cm		12x14		18x12
Bath depth		cm	14		15
Filling volume	from ... to	liters	3 ... 4,5		5,5 ... 8
Weight		kg	31		37
Mains power connection		V/ Hz	230 / 50		230 / 50
Current draw	(at 230 V)	A		12 (CH: 2)	12
Mains power connection		V/ Hz	208-230 / 60		208-230 / 60
Current draw	(at 230 V)	A	------		12
Current draw	(at 208 V)	A	------		10
Mains power connection		V/ Hz	115 / 60		115 / 60
Current draw	(at 115 V)	A	13		14
Mains power connection		V/ Hz	100 / 50/60		100 / 50/60
Current draw	(at 100 V)	A		13		14
All measurements have been carried out at:
rated voltage and frequency	ambient temperature: 20 °C
Technical changes without prior notification reserved.

9

Operator responsibility – Safety recommendations

			F33-ME	F34-ME
Working temperature range		°C	-30 ... 200	-30 ... 150
Temperature stability		°C	±0,01	±0,01
Cooling capacity		°C	+20 0 -20 -30	+20 0 -20 -30
Medium ethanol		kW	0.5 0.32 0.12 0.03	0.45 0.32 0.14 0.3
Refrigerant			R134a	R134a
Overall dimensions	(WxDxH)	cm	36x46x69	38x58x62
Bath opening	(WxL)	cm	23x14	24x30
Bath depth		cm	20	15
Filling volume	from ... to	liters	12 ... 16	14 ... 20
Weight		kg	44	42
Mains power connection	230 V/50 Hz	V/ Hz	230 / 50	230 / 50
Current draw	(at 230 V)	A	12	12
Current draw	GB, CH (at 230 V)	A	<9 / 2>	<9 / 2>
Mains power connection		V/ Hz	208…230 / 60	208…230 / 60
Current draw	(at 208 V / 230 V)	A	12	13
Mains power connection		V/ Hz	115 / 60	115 / 60
Current draw	(at 115 V)	A	15	14
Mains power connection		V/ Hz	100 / 60	----
Current draw	(at 100 V)	A	15	----

			FP40-ME	FP50-ME
				FPW50-ME
Working temperature range		°C	-40 ... 200	-50 ... 200
Temperature stability		°C	±0,01	±0,01
Cooling capacity		°C	+20 0 -20 -30	[phone]
Medium ethanol		kW	0.68 0.5 0.32 0.04	0.9 0.8 0.5 0.32 0.16
Refrigerant			R404A	R404A or R507
Overall dimensions	(WxDxH)	cm	37x46x69	42x49x70
Bath opening	(WxL)	cm	23x14	18x12
Bath depth		cm	20	15
Filling volume	from ... to	liters	9 ... 16	5.5 … 8
Weight		kg	48	55
Mains power connection		V/ Hz	230 / 50	230 / 50
Current draw	(at 230 V)	A	13	14
Current draw	GB, CH (at 230 V)	A	<9 / 3>	<9 / 4>
Mains power connection		V/ Hz	230 / 60	230 / 60
Current draw	(at 230 V)	A	13	14

All measurements have been carried out at:

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

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				ME
Temperature selection				digital
via keypad				indication on VFD COMFORT-Display
remote control via personal computer				indication on monitor
Temperature indication				VFD COMFORT-DISPLAY
Resolution		°C	0.01
Absolute Temperature Calibration	INT/EXT	°C		±3 / ±9
Temperature control				PID3 cascade temperatur 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	11 ... 16
Pressure max.	at 0 liter	bar	0.22 ... 0.45
Electrical connections:
External alarm device		Vdc/mA		24-0 / max. 25
Computer interface				RS232
External temperature sensor				Pt100
Ambient temperature		°C	5 ... 40

11

Operator responsibility – Safety recommendations

Safety installations according to IEC 61010-2-010:
Excess temperature protection	adjustable from 0 °C ... 230 °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 only indoor.

Altitude up to 2000 m - normal zero. Ambient temperature: +5 ... +40 °C Air humidity:

Max. rel. humidity 80 % for temperatures up to +31 °C,

linear decrease down to 50 % relative humidity at a temperature of +40 °C Max. mains 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 for use in explosive environment

Standards for interference resistance 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).

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2.3.Cooling water connection

Cooling water pressure (IN/OUT)		max.	6 bar
Pressure difference (IN - OUT)			3.5 to 6 bar
Cooling water temperature			< 20 °C
Notice:	Cooling water circuit

Risk of oil leaking from the refrigeration system (compressor) of the recirculating cooler into the cooling water in case of a fault in the cooling water circuit!

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

Notice:

Danger of corrosion of heat exchanger due to unsuitable quality of cooling water.

•Due to its high content of lime, hard water is not suitable for cooling and causes scale in the heat exchanger.

•Ferrous water or water containing ferrous particles will cause formation of rust even in heat exchangers made of stainless steel.

•Chlorinated water will cause pitting corrosion in heat exchangers made of stainless steel.

•Due to their corrosive characteristics, distilled water and deionized water are unsuitable and will cause corrosion of the bath.

•Due to its corrosive characteristics, sea water is not suitable.

•Due to its microbiological (bacterial) components, which settle in the heat exchanger, untreated and unpurified river water and water from cooling towers is unsuitable.

•Avoid particulate matter in cooling water.

•Avoid putrid water.

Recommended quality of cooling water:

pH	7.5 to 9.0
Sulfate [SO4 2- ]	< 100 ppm
Hydrocarbonate [HCO 3-]/sulfate [SO4 2-]	> 1 ppm
Hardness [Ca 2+, Mg 2+]/[HCO 3-]	> 0.5 °dH
Alkalinity	60 ppm < [HCO 3-] < 300 ppm
Conductivity	< 500 μS/cm
Chloride (Cl -)	< 50 ppm
Phosphate (PO4 3-)	< 2 ppm
Ammonia (NH3)	< 0.5 ppm
Free chlorine	< 0.5 ppm
Trivalent iron ions (Fe 3+)	< 0.5 ppm
Manganese ions (Mn 2+)	< 0.05 ppm
Carbon dioxide (CO2)	< 10 ppm
Hydrogen sulfide (H2S)	< 50 ppm
Content of oxygen	< 0.1 ppm
Algae growth	impermissible
Suspended solids	impermissible

13

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.

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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.

15

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.

WARNING

This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.

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4.Operating controls and functional elements

4.1.Circulator

Front view

Rear view

1	Mains power switch, illuminated
	Navigation keys
2	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.

3	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 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

17

Operating controls and functional elements

	Menu keys
5	Key: start the menu > warning and safety values<
6	Key: start the menu >temperature setpoints<
7	Key: display of MENU structure

10	VFD COMFORT-DISPLAY
	Header: Control indicators see sections 11 and 12
	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
11	Control indicators in the header:
	Heating / Cooling / Alarm /
	Remote control
12	Control indicators in the header:
	Temperature indication Internal or External actual value
	Temperature indication in °C (°F not possible on this unit)
13	Display of set pump pressure stage
	Four stages, can be set via the key			, under >MENU - PUMP<.
14	Adjustable excess temperature protection according to IEC 61010-2-010
15	Socket: control cable of JULABO refrigerated circulator
	or output for alarm messages
16	Interface RS232: remote control via personal computer
	RS232
17	Socket for external measurement and control sensor
	or external setpoint programming

	Pt100	Mains circuit breakers (resettable) 15 A
18	15
	A
	M
	P
20		Mains power cable with plug

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4.2.Cooling Machine

Front view	Rear view	Rear view FPW unit

1b

15a

15b

18b

20a

20b

21

22

23

24a

24b

25

26

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Mains power switch, illuminated for cooling machine

Socket: control cable of JULABO refrigerated circulator

Mains fuses for cooling machine, T10A, D5 x 20 mm

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

Built-in mains outlet for connection of circulator

Drain tap

Drain port

Pump connector: feed

Pump connector: return

Venting grid, removable

Cooling water OUTLET and INLET. ¾"

Selector dial for cooling machine (only F25, F26, F34) Position "1" for operation with ME circulator.

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Preparations

5.Preparations

5.1.Installation

•Place the unit on an even surface on a pad made of non-flammable material.

F34: The circulator fitted with a stainless steel bridge is placed on on the back of the bath tank leaving the bath open on the front side.

•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 0.25 kg of refrigerant R134a, a room space of 1 m3 is required.

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

>For 0.49 kg of refrigerant R507, a room space of 1 m3 is required.

•Set selector dial for cooling machine (19) in position "1" for operation with ME circulator. (only F25, F26, F34)

•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.

•Ensure circulation of cooling water by connecting the tubing to cooling water inlet and outlet on the rear of the refrigerated circulator.

Cooling water see page 13

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.

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ME

•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
	mixture water/glycol, mixture 1:1		-20°C to 50°C

See website for list of recommended bath fluids.

ATTENTION: The maximum permissible viscosity is 50 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!

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 (24a) with the cap nut.

The circulator is used for temperature application to external, closed systems (loop circuit) with simultaneous temperature application in the circulator bath.

Connecting the external system

•Unscrew the collar nuts from the pump connector (24a).

•Slide the tubing onto the pump connector for feed (24a) and return flow (24b) and secure with hose clamps.

  feed return

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