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Section I Safety

Warnings

Warnings are posted throughout the manual. These warnings are designated

by an exclamation mark inside an equilateral triangle and text highlighted in

bold. Read and follow these important instructions. Failure to observe these

instructions can result in permanent damage to the unit, significant property

damage, or personal injury or death.

The lightning flash with arrow symbol, within an equilateral triangle, is intended

to alert the user to the presence of non-insulated "dangerous voltage" within

the unit's enclosure. The voltage may be of significant magnitude to constitute

a risk of electrical shock.

This label, engraved into the front of the tank lip, indicates the presence of hot

surfaces.

Make sure you read and understand all instructions and safety precautions
listed in this manual before installing or operating your unit. If you have any
questions concerning the operation of your unit or the information in this
manual, contact our Sales Department.

Performance of installation, operation, or maintenance procedures
other than those described in this manual may result in a hazardous
situation and may void the manufacturer's warranty.

Transport the unit with care. The units weigh approximately:
EX-7, 27 pounds (12 kilograms); EX-10, 32 pounds (15 kilograms);
EX-17, 36 pounds (16 kilograms); EX-35, 53 pounds (24 kilograms). Units
should be transported with equipment designed to lift these weights.

Observe all warning labels.

Never remove warning labels.

Never operate damaged or leaking equipment.

Never operate the unit without bath fluid in the bath.

The user is responsible for the fluid used. Never use pure ethylene
glycol as a bath fluid, the flash point of 100% ethylene glycol is 111°C.
100% ethylene glycol may produce flammable vapors that can be
ignited by an open flame or an ignition source. When mixed with
water, ethylene glycol is not flammable. Also, at high temperatures
pure ethylene glycol may produce hazardous vapors.

Always turn off the unit and disconnect the line cord from the power
source before performing any service or maintenance procedures, or
before moving the unit.

Always empty the bath before moving the unit.

Never operate equipment with damaged line cords.

Refer service and repairs to a qualified technician.

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Содержание NESLAB EX Series

Страница 1: ...ermo com tc ProductServiceInformation Applications Notes MSDS Forms e mail Voice Info 800 258 0830 Thermo Scientific NESLAB EX Series Bath Circulator ThermoScientificManualP NU00696 Rev 03 06 07 Installation Operation Basic Maintenance ...

Страница 2: ...or resell any materials from this manual in either machine readable form or any other form Sales Service and Customer Support 25 Nimble Hill Road Newington NH 03801 Tel 800 258 0830 Sales 8 00 am to 5 00 pm Service and Support 8 00 am to 6 00 pm Monday through Friday Eastern Time Fax 603 436 8411 service tc us thermofisher com Dieselstrasse 4 D 76227 Karlsruhe Germany Tel 49 0 721 4094 444 Fax 49 ...

Страница 3: ...21 Controller Digital Plus 22 Computer Setup Loop 24 Timer Setup Loop 25 Offset Setup Loop 26 Analog A I O Port Optional 27 High Temperature Cutout 28 Accessories 29 Section IV Basic Maintenance Reservoir Fluid 35 Reservoir Cleaning 35 Algae 35 Internal Temperature Sensor rtd1 Calibration 36 External Temperature Sensor rtd2 Calibration 37 Optional Analog Port Calibration Optional 38 Section V Trou...

Страница 4: ... Fisher Scientific s compliance with these Directives the recyclers in your country and information on Thermo Scientific products which may assist the detection of substances subject to the RoHS Directive are available at www thermo com WEEERoHS Unpacking Retain all cartons and packing material until the unit is operated and found to be in good condition If the unit shows external or internal dama...

Страница 5: ... version ______________________________ voltage of power source ____________________________ The unit s BOM number and serial number are printed on the name plate label located on the rear of the unit See page 42 for instructions on how to decode your unit s BOM number See page 43 for instructions on how to display the softwareversion Warranty Thermo Scientific NESLAB EX units have a warranty agai...

Страница 6: ...r maintenance procedures other than those described in this manual may result in a hazardous situation and may void the manufacturer s warranty Transport the unit with care The units weigh approximately EX 7 27 pounds 12 kilograms EX 10 32 pounds 15 kilograms EX 17 36 pounds 16 kilograms EX 35 53 pounds 24 kilograms Units should be transported with equipment designed to lift these weights Observe ...

Страница 7: ...nce through the three indicators and accept the displayed value See page 17 NOTE None of the three setpoint indicators are visible unless this key is pressed Indicates heater status See page 17 Press to select external sensor See page 22 Digital Plus controller only Press to select the timer function See page 23 Digital Plus controller only Press to select the temperature offset mode See page 23 D...

Страница 8: ...ive materials are present Make sure the voltage of the power source meets the specified voltage 10 The pump connections are located at the rear of the pump box and are labelled and These connections are angled upward so the recirculating fluid will drain back into the reservoir when the hoses are disconnected Both connections are capped with stainless steel serrated plugs The pump lines have MPT f...

Страница 9: ...elease a formalde hyde vapor which is carcinogenic above 150 C 3 37 C 45 C 60 C bath temperature 20 C ambient Measured at the center of the work area stable ambient Sea level For 37 C the work area cover was off for 45 C and 60 C the work area cover was on No external flow For some applications agitation and stability above ambient may be improved by connecting a small length of hose between the p...

Страница 10: ...Side View 23 8 Time to Temperature 115V 60 Hz Models UnitDimensions Dimension A Dimension B Dimension C Dimension D Crate Dimensions D x W x H EX 7 EX 10 EX 17 EX 35 14 5 8 14 5 8 17 5 8 20 5 8 9 1 4 11 3 8 11 3 8 11 3 8 19 19 3 4 19 3 4 26 7 8 8 3 8 8 3 8 11 3 8 14 3 8 26 x 18 x 33 31 x 15 x 26 ...

Страница 11: ... 9 Time to Temperature 115V 60 Hz Models 230V 50 Hz Models 230V 50HzModels General Information ...

Страница 12: ... 10 BlankPage ...

Страница 13: ...The unit is intended for use on a dedicated outlet The EX has an internal circuit protection that is equivalent approx to the branch circuit rating This is to protect the EX and is not intended as a substitute for branch circuit protection Power Cord Set 230 Volt 50 Hertz units do not come with a power cord set To select the proper power cord follow these guidelines The cord set must consist of a ...

Страница 14: ...fic 1 Average Amp draw 1 Power cord length if supplied is 2 meters Thefollowingpoweroptionsareavailable Unit Amps1 Breaker Power Inlet EX 7 10 115 60 1 9 15A IEC320 C 13 100 50 60 1 10 15A IEC320 C 13 230 50 1 10 15A IEC320 C 19 EX17 35 115 60 1 16 20A IEC320 C 19 100 50 60 1 16 20A IEC320 C 19 230 50 1 10 15A IEC320 C 19 Installation and Operation ...

Страница 15: ...ce between the unit and the external system as short as possible and to use the largest diameter tubing practical Tubing should be straight and without bends If diameter reductions must be made make them at the inlet and outlet of the external system not at the unit If substantial lengths of lines are required they should be pre filled with bath fluid before connecting them to the unit This will e...

Страница 16: ...uid should be at least 5 C below the temperature setpoint The required fluid flow rate depends on the type of fluid the setpoint and the desired stability The plumbing connections for the cooling coil are 3 8 inch OD stainless steel tubes located on the lower rear of the unit These connections will accept 3 8 inch or 5 16 inch ID tubing Tubing is available from Thermo Fisher Connect the cold fluid...

Страница 17: ...pump inlet will draw an occasional air bubble to prevent over flow and the pump outlet will force fluid through the submerged tube to preventaerationofthevessel To avoid siphoning the bath work area when the unit is shut off lift the leveling device out of the vessel and above the level of the unit Circulating through two closed loops The pump can be used to circulate through two closed loop syste...

Страница 18: ...ater propylene glycol and water silicone oil and filtered water are acceptable fluids See Appendix A for additional information Please call Thermo Fisher customer service to discuss high temperature fluid selections However we will often refer you to chemical companies specializ ing in heat transfer fluids Filling Requirements Ensure the drain on the back of the unit is closed before filling the u...

Страница 19: ...ollowing two pages applies to both controllers ON OFF Use this key to toggle the unit on or off and to clear error mes sages SCROLL Use this key to scroll through the controller s LEDs It is also used to save new changes YES ARROW Use this key to increment numerical values when setting values and to accept new settings NO ARROW Use this key to decrement numerical values when setting values and to ...

Страница 20: ...apidly flash for two cycles and then the controller will return to the reservoir fluid tempera ture display If SCROLL is not pressed within 60 seconds the change will time out and revert to the original setpoint The controller will automatically return to the reservoir fluidtemperaturedisplay NOTE You can not adjust the setpoint closer than 0 1 C of either temperature limit and you can not adjust ...

Страница 21: ...h until the fluid is within the limit To display change the setpoint press until illuminates The display will flash the current setpoint value Use the arrow buttons to change the value The controller will not allow you to enter a setpoint closer than 0 1 C of either temperature alarm setting see next page Attempting to causes the indicator to flash and on Digital Plus controllers sounds the alarm ...

Страница 22: ... the fluid temperature and ignore any change To display change the high temperature alarm setting press until illuminates The display will flash the current setting value Use an the arrow buttons to change the value You can not set the alarm closer than 0 1 C above the setpoint Attempting to causes the indicator to flash and on Digital Plus controllers sounds the alarm On units with the Digital Pl...

Страница 23: ...r the loop you must be displaying the reservoir fluid temperature press and hold and then press The display will indicate tunE Use the arrow keys to sequence through the loop and to change a display Use to confirm any changes Changes made in the Tuning Setup Loop take affect when Yes is pressed at the StorE prompt Pressing No at the prompt aborts all changes Thermo Fisher recommends that only a qu...

Страница 24: ...dtemperature NOTE The temperature display may drift for up to 10 15 seconds when transitioning between temperature sensors This is normal operation Serial Communication Pressing Computer enables disables the serial communications mode of operation In this mode all changes to the setpoint alarm limits etc must now be sent by a remote device using RS 232 or RS 485 protocols You can still view all se...

Страница 25: ...fset only affects the displayed value when the offset mode is enabled the other setpoint values still dictate unit performance To setup the bath for offset mode operation see Offset Setup Loop on page 26 If you press the Offset button when an offset has not been previously defined or if serial communications is enabled the button will flash the unit will beep three times and the display will momen...

Страница 26: ...w buttons to adjust any parameter When StorE is displayed press YES to accept any new values NO to abort them If the Computer button is not pressed for 60 seconds the function will time out and the changes will not be saved Pressing the Mute button will also exit the Computer Setup Loop and return you to the reservoir fluid temperature display Once enabled the Computer LED will flash when sending ...

Страница 27: ...ay StorE Press YES to accept the values NO to abort them If the Timer button is not pressed for 60 seconds the function will time out and the changes will not be saved Pressing the Mute will also exit the Timer Setup Loop and return you to the temperature display If the bath is turned off using with the timer mode enabled the Timer LED will go out and the timer mode will be disabled With the bath ...

Страница 28: ...45 C the Offset button was not depressed when you entered the Offset Setup Loop Press the Offset button to display the offset temperature and illuminate the LED NOTE Offset only changes the display of the enabled probe Setpoint and alarm values will display the non offset value If you press the Offset button when an offset is 0 or not defined or if serial communications is enabled the button will ...

Страница 29: ... 3 open on start up and close on stop and all errors 3 Status relay common 4 5 Not used 6 Analog Ground The analog ground is physically separated from the power ground throughout the unit To prevent offsets that result from ground currents the analog and power grounds are only connected at the unit s power supply Analog ground should only be used as a referencepin 7 Temp out The fluid temperature ...

Страница 30: ... clockwise and turn the power switch off then back on Start the unit Adjust the setpoint for a few degrees higher than the highest desired fluid temperature and allow the bath to stabilize at the temperature setpoint Turn the dial counterclockwise until you hear a click and the unit shuts down Before you can restart the bath it has to cool down a few degrees Then without moving the adjustment dial...

Страница 31: ... water inlet on the autorefill module A compression fitting for 3 8 tubing is provided Connect the control cable from the back of the control box to the side of the autorefill module as shown in the illustration Connect the power supply from the power supply inlet on the side of the autorefill module to an appropriate power outlet When tap water is available the bath is turned on and the fluid rea...

Страница 32: ...Afterthreadingtheoverflowassembly in as far as it goes loosen it back out until the Swagelok fitting is at the top Install one of the two supplied 4 40 x phillips head screws into the bottom of the drain housing where the stop screw use to be Make sure this screw is tight so that the assembly doesn t turn and drain the tank Reinstall the vertical tube assembly into the Swagelok if it was removed I...

Страница 33: ...s Steel Shelf Set Thermo Fisher offers two accessory shelves for use in the EX 35 bath The EX 35 s reservoir is 12 deep The 6 shelf makes the bath effectively 6 deep The 3 shelf makes the bath effectively 9 deep The shelves can also be stacked making the reservoir effectively 3 deep The shelves are Stainless Steel and are simply positioned into the work area The shelves are fully perforated to all...

Страница 34: ...A 30 Lead Stainless Steel probe 126000000024 1 5 L X 187 DIA 30 Lead Stainless Steel probe 126000000033 GFCI Breaker Line Cords 115V 60Hz units only Unit Description Part Number 15 Amp Units 125V 15A4 6MA 126000000050 20 Amp Units 125V 20A4 6MA 126000000051 RS 232 485 Communication Cables Digital Plus only Description Part Number 10 Cable Assembly 083258 The following accessories are also availabl...

Страница 35: ...t or it can be used on a desk top with the wall bracket removed Typical RPC Display COOL HEAT MENU SETPOINT 120 0 C BATH ON Description Part Number RPC100 115V 50 60Hz 1Ø 604012000401 with NEMA 5 15P type plug RPC100 240V 50 60Hz 1Ø 604028000401 requires country specific line cord not included 10 Cable Assembly included 083258 25 Cable Assembly 426000000029 50 Cable Assembly 426000000030 75 Cable ...

Страница 36: ... 34 BlankPage ...

Страница 37: ...id compatible with your application The reservoir fluid should be replaced periodically Frequency depends on the operatingenvironmentandtimeofusage Before changing the reservoir fluid ensure it is at a safe handling temperature Reservoir Cleaning Routine cleaning can be achieved by simply sponging down the seamless stainless steel tank with tap water Dish washing detergent may be used but the tank...

Страница 38: ...the reference thermometer Press the SCROLL and NO buttons as shown until StorE is displayed press YES to accept the new value press No to abort it Repeat for the low end temperature Run the bath to a suitable low end calibration point At the r1 L display use the arrow buttons to adjust the temperature to match a calibratedreferencethermometer Press the SCROLL and NO buttons as shown until StorE is...

Страница 39: ... until StorE is displayed pressing YES accepts the new value Repeat for the low end temperature Run the bath to a suitable low end calibra tion point At the r2 L display use the arrow buttons to adjust the temperature to match a calibrated reference thermometer Pressing the SCROLL button after the low calibration will display StorE pressing YES accepts the new value If the SCROLL button is not pre...

Страница 40: ...n press SCROLL again to display A iL If desired repeat the procedure for A iL Apply 0V to pin 15 Measure the voltage and change the displayed value to match it Pressing YES at the AoUt display and the display will indicate A oH Press YES and the display will alternate between A oH and 2 5000 the bath will set the Temp Out pin 7 output voltage to approximately 2 5V Measure the voltage and change th...

Страница 41: ... runtime Synchronous communication error check connections BOM invalid Contact Thermo Fisher Functional Machine Errors Warnings self clear after the cause of the error is identified and corrected Faults require pressing I 0 to clear the error message and then pressing I 0 again to start the unit after the cause of the error is identified and corrected Error Display Indication Low temp setpoint war...

Страница 42: ... running If any other code appears contact Thermo Fisher customer service External Sensor Connector The unit is equipped with a male 9 pin D connector located on the rear of the control box The connector is used with an optional external sensor Pin Function 1 3 wire RTD connection A 2 Noconnection 3 Noconnection 4 3 wire RTD connection A 5 Noconnection 6 Noconnection 7 3 wire RTD connection B 8 No...

Страница 43: ...k Serial Communications Mode on or off Check controller PID values See next page for factory preset values NOTE Using high viscosity fluids at low temperatures may require PID adjust ment contact Thermo Fisher Performinternaltemperaturesensorcalibration Check optional external sensor connection Perform calibration High Temperature Cutout activated see page 28 Condensation A gasket is available for...

Страница 44: ...nit fails to operate properly contact our Service Department for assistance see Preface After sale Support Before calling please obtain the following information unit BOM number unit serial number softwareversion voltage of power source Controller PID Values The factory set PID values are P I D Heat 0 6 0 6 0 0 Thermo Fisher does not recommend changing the PID values Incorrect PID valueswillhamper...

Страница 45: ...2 Press and hold No for at least 10 seconds The display will show the first two digits for example 08 3 Press The display will show the remaining digits to the left of the decimal for example 2645 4 Press The display will show the decimal point and the digit to the right of the decimal point for example 1 5 Press The display will show the revision letter as its equivalent number for example 1 A 6 ...

Страница 46: ...BlankPage 42 ...

Страница 47: ...ater Do not use untreated tap water as the total ionized solids level may be too high Maintain this water quality at a resistivity of between 1 to 10 MOhmcm com pensated to 25 C by using a purification system Although the initial fill may be as high as 18 MOhmcm compensated to 25 C the desired level for long time usage is 1 to 3 MOhmcm compensated to 25 C The above two recommendations will reduce ...

Страница 48: ...emperature range of the fluid but should not be used as a pre mixed anticorrosive solution Again this fluid does break down over time at high temperatures Industry standards use a pH standard of 8 to determine when the fluid has become corrosive Dowtherm is an ethylene based product that contains dipotassium phosphates in a 4 concentration The recommended use of Dowtherm is mixing with distilled o...

Страница 49: ...6 9 NoConnection To connect the bath to your computer a M F 9 pin D Subminiature extension cable will be required See page 32 for cables available from Thermo Fisher All commands must be entered in the exact format shown in the tables on the following pages The tables on the last page of this Appendix show all com mands available their format and responses Controller responses are either the reque...

Страница 50: ...th FF hex The master requests information by sending one of the Read Functions as shown in Table 1 on page B 4 Since no data is sent to the bath during a read request the master uses 00 for the number of data bytes following the command byte The bath will respond to a Read Function by echoing the lead character address and command byte followed by the requested data and checksum When the bath send...

Страница 51: ...if the master wants to set the setpoint to 30 C it would send Thebathresponds command byte 2 bytes to follow The checksum is the bitwise inversion of 22 00 03 F0 02 01 2C 122 Take the LSB 22 The temperature of 30 0 C is 300 decimal 012C hex CC 00 03 F0 02 01 2C DD CC 00 03 F0 03 11 01 2C CB command byte 3 bytes to follow The checksum is the bitwise inversion of 34 00 03 F0 03 11 01 2C 134 Take the...

Страница 52: ...it CA 00 01 C0 02 d1 d2 cs CA0001C003 qb d1 d2 cs SetHighTemperatureLimit CA 00 01 E002 d1 d2 cs CA0001E003 qb d1 d2 cs Set Heat Proportional Band CA 00 01 F1 02 d1 d2 cs CA0001F103 qb d1 d2 cs P 0 1 99 9 Set Heat Integral I 0 9 99 CA 00 01 F2 02 d1 d2 cs CA0001F203 qb d1 d2 cs Set Heat Derivative D 0 5 0 CA 00 01 F3 02 d1 d2 cs CA0001F303 qb d1 d2 cs Set On Off Array CA 00 01 81 08 d1 d8 cs CA 00...

Страница 53: ...lling b 6 1 Alarm Muted Heat LED Flashing b 5 1 UnitFaulted Heat LED On b 4 1 UnitStopping 0 b 3 1 Unit On 0 b 2 1 Pump On 0 b 1 1 0 0 b 0 1 HeaterOn 0 LED bits in REQ STATUS1 byte d5 LED State LEDFlashing LED On OFF 0 0 ON 0 1 FLASHING 1 1 Invalid 1 0 b 7 most significan bit b 0 least signifcant bit Table 3 Qualifier Byte 10 hex 0 1 precision no units of measure 20 hex 0 01 precision no units of ...

Страница 54: ...erking Kraanwaterwordtinhetalgemeenaanbevolen wanneer u bij temperaturen werkt van 8 C tot 80 C Wanneer u wilt circuleren naar een extern systeem dient u altijd extra vloeistof achter de hand te houden om het juiste vloeistofniveau zowel in het interne als het externe gedeelte van het systeem te handhaven Gebruikhetapparaatnooitwanneerhetreservoir leeg is Aan de achterkant van de unit onderaan zit...

Страница 55: ...of improper installation or maintenance or to any unit that has been operated or maintained in any way contrary to the operating or maintenance instructions specified in this Instruction and Operation Manual This warranty does not cover any unit that has been altered or modified so as to change its intended use In addition this warranty does not extend to repairs made by the use of parts accessori...

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