Science / Electronics
Contents
1. Heater protection cut out The cut out temperature is fixed at approximately 120 C The cut out operates if the liquid level falls below the bottom of the heater so that the temperature sensing probe is no longer immersed in the liquid This causes the heater to raise in temperature to above the operating point of the cutout When it has operated the red alarm lamp illuminates and the side heater and stirrer are switched off The liguid temperature continues to be displayed to warn of possible high temperatures The reset button is located on the rear of the control unit and is covered by a removable cap DO NOT reset the cut out before allowing the heater to cool and refilling the bath To reset it remove the protective cap and press the reset button If the cut out cannot be reset or the liquid temperature continues to rise above the set temperature after resetting the out out have the unit checked by a technician 3 1 2 Filling Before filling the bath disconnect the power supply NOT by removing the IEC connector from the rear of the unit When the tank is fully loaded fill to a maximum level of 10 mm from the top with a liquid suitable for your working temperature Specified liquids 0 to 30 C 5 to 80 C 80 to 99 9 C 80 water 20 antifreeze inhibited ethylene glycol WARNING TOXIC Follow the manufacturer s instructions For safe disposal consult your local Environmental Health Office Use a lid t2. Tank Dimensions 300 150 150 325 300 150 505 300 150 505 300 200 690 300 200 Vw d mm Liquid depth min max 80 140 70 140 70 140 120 190 120 190 mm 7 6 3 C1G IC 200 C2G IC 400 Refrigerated cooler for use in liquids between 20 C and 40 C The cooling coil may be immersed in liquids up to 100 C but the cooler should not be switched on with liquid temperatures above 40 C Immersed material the cooling coil is nickel plated copper As ezo Flexible pote length Coil Coil diameter length sd 77 55 mm 77 105 mm Electrical supply 110 120 VAC 110 120 VAC or 220 240 VAC 7 MAINTENANCE AND SERVICE All Science Electronics laboratory products are designed to comply with IEC1010 1 and can be flash tested Some are fitted with radio freguency interference suppressors Therefore it is recommended that only a d c testis performed 7 1 VF VFP VFK VFKP No routine maintenance is required For service obtain an RMA number remove the control unit and return to our service department DO NOT RETURN THE TANK OR BRIDGE PLATE 18 7 2 7 3 7 4 C1G IC 200 C2G IC 400 Dust on the refrigeration condenser Cooling power will be reduced if the fins behind the front grille become clogged with dust Examine monthly and if necessary call a technician to take off the cover and remove the dust No other routine maintenance is required Disposal This unit contains refrigerant gas which must NOT
3. to sections containing this symbol CAUTION Some surfaces can become HOT during high temperature operation DONOT CONNECT TO THE POWER SUPPLY OR SWITCH ON BEFORE FILLING THE TANK Only connect to a power supply with a voltage corresponding to that on the serial number label Connect the control unit only to a power supply which provides a safety ground terminal Connecting to an ungrounded power supply is potentially dangerous Before moving drain the bath and disconnect the power supply at the power supply socket Do NOT remove the IEC connector from the rear of the unit Ensure that the unit is positioned such that the power switch is easily accessible during use The ventilation slots on the rear of the unit must not be blocked or restricted Take care when topping off or draining as the liguid in the tank may be hot If the alarm lamp is illuminated take care as the liquid may be at boiling point DO NOT TOUCH the heater as it may be VERY hot When refilling the bath be very careful The heater may be hot and when cold water comes into contact with it the water can boil violently throwing off very hot droplets of water and scalding steam USE SAFETY GLASSES Ifthe alarm lamp is illuminated and the heater is not immersed in liquid DO NOT TOUCH IT it will be very HOT Do not place the control unit on a surface which is flammable Do not check the liguid temperature by touch Use the temperature display or a
4. control unit with three of the screws see figures 2a and 2b The fourth screw is a Spare Replace the bridge plate on the tank ensuring that the studs fit into the brackets Tighten the nuts Plug the power line cord into the socket on the rear of the unit Y6 VFP through Y38 VFP Stirred Baths with integral pump for external circulation Remove the bridge plate from the tank by unscrewing the waisted nuts underneath the bridge plate Remove the four screws see figure 1 from the underside of the control unit Feed the heater and pump through the hole in the bridge plate being careful not to force it Position the control unit so that it faces over the bath working area Note The VFP unit can only be fitted in the one direction unlike the VF Attach the control unit to the bridge plate with three of the screws see figure 2b The fourth screw is a spare Excellent circulation within the tank is achieved by means of the stirrer The pump is required for circulation to external apparatus only To use the pump Remove the large grommet from the bridge plate and fit the large connector supplied with the nut underneath see figure 3 Screw the small pipe connector into the lower part of the large connector with the fiber washer between the two Fit a 250 mm length of 10 mm bore tube between the pump output and the lower pipe connector making sure that the tube is not pinched Remove the small grommet and fit the remaining
5. cooling coil into the bath and replace the bridge plate such that the slot holds the coil in position To keep the slot cover for future use turn it upside down and fix in position with the screw 2 2 5 2 Cooling systems with Immersion Thermostats Position the cooling coil in the tank and clamp it in position ensuring that it is fully immersed 2 2 6 Connection to electrical supply 10 WARNING The eguipment must be grounded lt is protected by internal electrical fuses We strongly recommend that the power supply to any eguipment for heating liguids should include a ground fault interrupter circuit breaker ground leakage trip Check that the voltage rating of the product given on the serial number plate at the power line cord entry is correct for your supply Fit the power line cord into the IEC power socket at the rear of the unit 3 OPERATION 3 1 Y VF and Y VFP series baths and Immersion Thermostats VFK VFKP 3 1 1 Controls and indicator lamps see figures 5 amp 6 3 1 1 1 3 1 1 2 3 1 1 3 3 1 1 4 3 1 1 5 Power switch Power switch is located on the front panel Temperature display The display normally shows the bath liquid temperature in C When the gray display set C button is pressed the set temperature is shown Set temperature knob The push to set C knob sets the required operating temperature Alarm lamp Alarm lamp red illuminates when the overtemperature cut out has operated
6. to mark the outside of the returned goods package with this RMA number to ensure prompt handling Science Electronics Inc 521 Kiser Street Dayton OH 45404 1641 937 224 4444 Fax 937 224 4434 E mail service se one com 20 Figure 1 small Connector on eee f CS Small AB Connector Nut Figure 3 LDA Figure 4 Identification of units and controls Identification of units and controls Front Rear Push to display set temperature grey button Liquid Set Temperature display On Off switch Alarm lamp Supply voltage input connection Over temperature cut out reset button with protective Fuse drawer b cap removed Set temperature contro blue knob Over temperature cut out probe ll a TT Figure 5 Figure 6 22
7. 4 3 1 Stainless steel gabled lids LS14 LS28 LS38 LS14 for Y14 bath tank LS28 for Y22 and Y28 bath tanks LS38 for Y38 bath tanks The pack contains Lid Handle Adapters Screws 14 To assemble remove the protective film Pass the two screws through the holes in the lid thread the adapters on to the screws so that the V cut fits over the ridge of the lid Hold the handle in position against the adapters and fasten to the lid by tightening the screws 4 3 2 Polypropylene spheres PS20 Polypropylene spheres are an alternative to lids They minimize evaporation and heat loss allow easy access to vessels in the bath and are particularly useful for tall vessels One package contains approximately 300 spheres yee vas v Spheres Reguired 1XPS20 1XPS20 2X PS20 2X PS20 3X PS20 4 4 Siphon SYI A Siphon SY1 can be used to drain the bath 15 5 FAULT DIAGNOSIS Symptom Possible Cause Action Reguired Unit does not operate Unit not switched on Switch On Power lamp off Unit not plugged into Plug in switch on power supply Fuse blown in the unit Check and replace Electrical power supply Check that other electrical failure appliances on the same circuit are working Alarm light on Overtemperature cut out Reset cut out as described in has operated 3 1 1 5 Temperature does not rise Set temperature is lower Check set temperature when expected than liquid temperature Temperature control Ha
8. Science Electronics 521 Kiser Street Dayton Ohio 45404 1641 937 224 4444 Fax 937 224 4434 E mail sales se one com Y Series Stirred Baths and Circulators VF Immersion Thermostats Refrigerated Immersion Coolers User Manual Product Y6 VF Y6 VFP Y14 VF Y14 VFP Y22 VF Y22 VFP Y28 VF Y28 VFP Y38 VF Y38 VFP VFK VFKP C1G IC 200 C2G 1C 400 User Manual for Y Series Stirred Baths Description Y6 6 liter bath tank VF Stirrer Controller Y6 6 liter bath tank VFP Stirrer Controller with Pump Y14 14 liter bath tank Y14 14 liter bath tank VF Stirrer Controller o VFP Stirrer Controller with Pump Y22 22 liter bath tank VF Stirrer Controller Y22 22 liter bath tank lt gt VFP Stirrer Controller with Pump Y 28 28 liter bath tank VF Stirrer Controller lt gt Y28 28 liter bath tank lt gt VFP Stirrer Controller with Pump Y38 38 liter bath tank VF Stirrer Controller lt gt Y 38 38 liter bath tank VFP Stirrer Controller with Pump Value Immersion Thermostat Value Immersion Thermostat with Pump Refrigerated Immersion Coolers Refrigerated Immersion Coolers September 16 1998 2 CONTENTS Page SAFETY usko cw 3 AA AE Pe eS SS AAA RARA AA 4 2 GETTING STARTED 5 5 1 6 2 0 ad o og A ta E da 6 2 1 Unpackin j isla zada RAL ete ee RED ee elena To ned 6 2 2 installation 24 u ha ak Ma RA Nt ca AN
9. above 60 C use a lid which fits tightly around the controller or polypropylene spheres The purpose of the lid is to prevent vapors from the hot liquid escaping into the atmosphere or being drawn into the controller 9 with the cooling air Hot vapors should not be inhaled The lid also improves the heat up rate and reduces liguid evaporation 2 2 5 Near or below ambient operation Y VF and Y VFP series baths without lids can be used to within 5 C of ambient without accessory cooling Cooling systems Refrigerated Immersion Cooler C1G IC 200 or C2G IC 400 Heat Exchange Coil CW5 CW5 is suitable for use with a refrigerated circulator or tap water To use tap water ensure that local water supply regulations are adhered to The CW5 coil can be used in any bath with a minimum depth of 150 mm C1G IC 200 is suitable for use with all Y VF and Y VFP series baths and with Immersion Thermostats VFK and VFKP in tanks deeper than 150 mm C2G IC 400 is suitable for use only with Y28 VF P and Y38 VF P baths and with Immersion Thermostats VFK or VFKP in tanks deeper than 200 mm Note It may be necessary to use a lid or polypropylene spheres see 4 3 to maintain low temperatures When using baths at lower temperatures condensation may form as the tanks are not insulated 2 2 5 1 Cooling systems with Y Series Bath Tanks Remove the bridge plate from the bath Remove the small piece which covers the slot in the bridge plate Put the
10. be discharged into the atmosphere At the end of the units working life either have the gas removed safely by using refrigerant recovery equipment or return the unit to us for disposal Cleaning The cases can be cleaned with a damp cloth after disconnection NO SOLVENTS must be used The immersed parts can be cleaned using a proprietary heating element cleaner CAUTION TOXIC follow manufacturer s instructions Before using any cleaning or decontamination method except those recommended by the manufacturer users should check with the manufacturer that the proposed method will not damage the equipment Replacement of fuses Disconnect the unit from the power supply socket Remove the IEC power plug from the rear of the unit Press down the drawer catch see figure 6 Pull out the fuse drawer check and replace with the correct fuses if necessary as follows 1 25 x 0 25 inch quick acting rated VF VFP VFK VFKP 110 120V 15AF C1G IC 200 C2G IC 400 110 120V 20AF C2G IC 400 220 240V 10AF Push back the drawer and replace the IEC plug 8 WARRANTY When used in laboratory conditions and according to this user manual this equipment is warranted for THREE YEARS against faulty materials or workmanship 19 9 SERVICE It is necessary that a Returned Materials Authorization RMA number and form be obtained before return of any Science Electronics product for any reason Contact us for more information Please be sure
11. e Rd cee u v RA ds 7 3 2 C1GIC 200 C2G IC 400 soi AA AAA Ke 13 A ACCESSORIES z s a azda kd ara KR e 14 QA lt PESttubG FICS ore ere eee ee E ees 14 4 2 Raised shelves 202s LL ee ee ee eS eee eS 14 ES LIAS iu PR Stag rate Does Wed x AA o 14 AA Siphon SYI a SO EA a U Gane 15 5 FAULT DIAGNOSIS 23466344 2345 ARAS SAO Toky 16 6 TECHNICAL SPECIFICATIONS 00 200 c eee eee 17 6 1 VF VFP VFK VFKP o cade AB peca ehhh hiked eae 17 6 2 Series Bath Tanks ocurridas Gees we wow d 17 6 3 C1G IC 200 C2GNC 400 ica KA R 18 7 MAINTENANCE AND SERVICE 18 7 1 VE VFP VFK VFKP dod ao ad a ada bh do s dae 18 7 2 C1G IC 200 C2G IC 400 0 022 ee 19 Ted GIGANING uz ost eet ee BiG eee eae tt ad 19 7 4 Replacement of fuses 19 Be WARRANTY sobov ao O KUNA eae ea ee ei eee it a eee 8 D 19 9 SERVICE sinus iain Seen we MOR VR VR a ake 20 A SAFETY This equipment has been designed and constructed to comply with the electrical safety requirements of IEC 1010 1 safety requirements for electrical equipment for measurement control and laboratory use and IEC 1010 2 010 specification for laboratory equipment for the heating of materials These International Standards are also published as European EN 61010 and British BS EN 61010 standards Always obey the following safety precautions CAUTION Read this documentation fully before use and pay particular attention
12. emperature When the button is released the set temperature cannot be altered by turning the knob C1G IC 200 C2G IC 400 The power switch is on the rear of the unit Switch on at the rear Always ensure that the bath is switched on to provide temperature control and to prevent the formation of ice Do not switch on if 4 4 4 the temperature of the liquid in the bath is above 40 C the cooler has been tilted by more than 25 degrees during the past six hours the interval since switching off the cooling system is less than 10 minutes Condensed water vapor from the air will dilute water glycol mixtures and eventually ice will form on the cooling coil This should be removed and liquid replaced otherwise cooling power will be reduced 3 2 1 Use with other tanks Use a stirrer to prevent ice formation For temperature control use a thermostat and heater do not switch the cooler with a thermostat as this could damage the refrigeration system 13 4 ACCESSORIES 4 1 Test tube racks The following stainless steel test tube racks are available Bath Racks Tube Diameter Catalog Numbers Tank per bath Far vR 4 2 Raised shelves Raised shelves RS14 RS22 RS28 and RS38 are available for Y14 Y22 Y28 and Y38 tanks respectively The raised shelves can be used with either end up in the bath to give different immersion depths The immersion depth can be adjusted by changing the quantity of liquid in the bath 4 3 Lids
13. n accessory thermometer Use only water or water glycol mix Do not use these liguids outside the specified temperature range If the alarm lamp is illuminated and water glycol mixture is being used the temperature of the liquid may be above its recommended maximum temperature DO NOT inhale the vapors given off from the hot liquids as they are TOXIC If water glycol mixture is heated above its recommended maximum discard safely and replace with new liquid Always use a lid or polypropylene spheres when operating above 60 C Take care when raising and removing the lid The lid may be hot Steam and hot vapors can cause scalding When working at high temperatures greater than 60 C reduce the risk of eye injury by using safety goggles or spectacles Before draining allow the liquid to cool to below 50 C Drain using a hand siphon pump SYI When pumping through or around external apparatus always use connecting pipe or hose suitable for the operating temperature and liguid used and check that the pipe connections are secure before switching on Do not disconnect any pipes or hoses while they contain hot liguid The bath should be used in a manner specified by this user manual otherwise the protection provided by the eguipment may be impaired It is the user s responsibility to carry out any appropriate decontamination if hazardous material is spilled on or inside the equipment 2 GETTING STARTED 2 1 Unpacking Remove
14. o reduce the dilution of the mixture caused by condensing water vapor from the air and to maintain the cool down rate Water recommended temperature range Use a lid or polypropylene spheres above 60 C to reduce evaporation and heat loss Water can be used but care should be taken with its use as hot water vapor can be dangerous A lid or polypropylene spheres must be used At these temperatures the temperature control will be reduced due to localized boiling and there may be a large loss of water due to evaporation The control units should not be used to boil water Both water from a drinking source and de ionized water is suitable for use in the baths However some older de ionizers can create concentrated salt solutions for a short time after the ionizer is rejuvenated This solution should not be used in the baths as it may cause corrosion 3 1 3 Switching on and setting up 40 3 2 Connect the pump to your external circuit if required Connect the control unit to a grounded electrical power supply with voltage and frequency within the range specified on the serial number plate DO NOT SWITCH ON BEFORE FILLING THE TANK If the control unit does not come on check whether the alarm lamp is illuminated see 3 1 1 5 Setting the temperature Press the gray display set C button to change the display from actual to set temperature at the same time press the blue push to set C knob and turn it to the required operating t
15. pipe connector with the nut underneath Replace the bridge plate on the tank ensuring that the studs fit into the brackets Attach the pipe which feeds the external circuit to the large pipe connector Fit the return pipe to the other pipe connector WARNING Ensure that the tubing is securely clamped to the connectors and to the external circuit and that the tubing is suitable for the liquid temperature If external circulation is not required fit a short length of pipe between the two connectors ensuring that it is not pinched Plug the power line cord into the socket on the rear of the control unit The pump is designed for circulation around a closed circuit which is one not open to the atmosphere It cannot be used for circulation through an external open tank 2 2 3 VFK Immersion Thermostat For use with rectangular or circular vessels Maximum wall width 20 mm Remove the four screws from the underside of the control unit see figure 1 Attach the K clamp to the base of unit using three of the screws see figure 4 The fourth screw is a spare Clamp the control unit to the side of the vessel taking care not to over tighten the clamp especially if the vessel is fragile 8 2 2 4 Plug the power line cord into the socket on the rear of control unit WARNING When using the immersion thermostat above 60 C use a lid which fits tightly around the controller or polypropylene spheres The purpose of the lid is to
16. prevent vapors from the hot liquid escaping into the atmosphere or being drawn into the controller with the cooling air Hot vapors should not be inhaled The lid also improves the heat up rate and reduces liquid evaporation VFKP Immersion Thermostat with Pump for external circulation For use with rectangular or circular vessels maximum wall width 20 mm Remove the four screws from the underside of the control unit see figure 1 Attach the K clamp to the base of the control unit using three of the screws see figure 3 The fourth screw is a spare Fit a sufficient length of 10 mm bore tubing to the pump output attach the other end to the external circuit Feed the return pipe back into bath and secure it so that it cannot escape from the bath WARNING Ensure that the tubing is securely clamped to the connectors and to the external circuit and that the tubing is suitable for the liquid temperature If external circulation is not required ensure that the bung supplied is fitted into the pump outlet to prevent splashing Clamp the control unit to the side of the vessel taking care not to over tighten the clamp especially if the vessel is fragile Plug the power line cord into the socket on the rear of the control unit The pump is designed for circulation around a closed circuit which is one not open to the atmosphere It cannot be used for circulation through an external open tank WARNING When using the immersion thermostat
17. the packing materials carefully and retain for future shipment or storage of the unit Packs should contain 2 1 1 Bath control units 2 1 1 1 2 1 1 2 VF Stirrer Controller Power line cord Operating instructions VFP Stirrer Controller with Integral Pump 250 mm length of tube Bag containing 1 large pipe connector with nut 1 small pipe connector 1 small pipe connector with nut 1 fiber washer Power line cord Operating instructions 2 1 2 Immersion thermostats 2 1 2 1 2 1 2 2 VFK Immersion Thermostat K clamp Power line cord Operating instructions VFKP Immersion Thermostat with Integral Pump K clamp 250 mm length of tube Bag containing 1 large pipe connector with nut 1 small pipe connector 1 small pipe connector with nut 1 fiber washer Power line cord Operating instructions 2 1 3 Bath Tanks Y6 through Y38 each fitted with bridge plate Bo 2 1 4 Refrigerated Immersion coolers C1G IC 200 or C2G IC 400 2 2 Installation 2 2 1 Y6 VF through Y38 VF Stirred Baths without integral pump Remove the bridge plate from the tank by unscrewing the waisted nuts underneath the bridge plate Remove the four screws from the underside of the control unit see figure 1 Feed the heater through the hole in the bridge plate being careful not to force it Position the control unit such that it faces either along the bridge plate or over the bath working area according to preference Attach the bridge plate to the
18. ve unit checked by circuit fault technician Temperature continues to Set temperature is Check set temperature rise when not expected higher than liquid temperature Set temperature is too Raise the set temperature or close to ambient add accessory cooling Temperature control Have unit checked by circuit fault technician Stirrer motor does not Stirrer or propeller Clear obstruction rotate obstructed Pump obstructed VFP Clear obstruction VFKP If stirrer motor shaft Have unit checked by rotates freely then technician motor thermal fuse may have blown bs 6 TECHNICAL SPECIFICATIONS This eguipment is designed for indoor use in laboratory conditions with room temperature between 5 C and 40 C and 80 relative humidity Performance figures quoted apply to equipment used in ambient temperature between 10 C and 35 C 6 1 VF VFP VFK VFKP Temperature range 0 to 99 9 C Stability DIN 58966 37 C 0 1 C Uniformity 37 C 0 2 C Temperature setting display digital LED Display resolution 0 1 C Heater power 115V 1 0 kW Overall consumption 115V 1 1 kW Pump VFP VFKP max head 1 3 meters max flow 9 L min pipe bore 9mm Overtemperature protection fixed resettable over temperature cut out Supply voltage range 110 120V 50 60Hz Heat up time in minutes from 25 C to 70 C with water and lid on Y6 VF P Y14 VF P Y22 VF P Y28 VF P Y38 VF P 6 2 Y Series Bath Tanks Tank Capacity L
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