Tamson Instruments TV12LT, User Manual

Page 1: ...3 tv12ltman Rev 3 01 UK 0821 E mail info tamson com Website www tamson com Tamson Instruments bv Page 1 30 ISO 9001 2015 NL PRO 238239125 VAT NL 80 66 34 984 B01 Bank account no NL28 INGB 0007 350 370...

Page 2: ...12 4 2 CONSTRUCTION 12 4 3 STIRRER 12 4 4 TEMPERATURE CONTROL AND SETTING 12 4 5 FRONT PANEL 13 4 6 OVERVIEW MENU ITEMS 13 5 SAFETY SYSTEMS 15 5 1 MECHANICAL OVER TEMPERATURE PROTECTION 15 5 2 LEVEL P...

Page 3: ...e to the equipment or its accessories caused by incorrect operation Important When performing service maintenance or moving the apparatus always disconnect the apparatus at the main s socket Proper sk...

Page 4: ...the equipment or its accessories If a malfunction occurs consult section TROUBLE SHOOTING page 24 at the end of this manual If problem persists call your supplier or Tamson Instruments bv Never opera...

Page 5: ...companies generally will not honor a claim for damage if the respective packing material is not available for examination The shipment contains at least the bath as mentioned in the delivery checklist...

Page 6: ...well above the maximum operating temperature Fluid must not be aggressive when in contact with stainless steel brass glass and silicon sealing Extreme HAZARD Do not use methanol at temperatures above...

Page 7: ...e bath liquid ignites under these conditions The heating element must be fully covered by the bath fluid The heating element will be damaged when not fully submerged in the bath fluid 3 1 Drain bath f...

Page 8: ...5 RABO 0160100046 Chamber of commerce 27 16 95 41 3 2 Bath fluid level Minimum level The heating element must be fully covered by the bath fluid The heating element will be damaged when not fully subm...

Page 9: ...t fluid from the overflow outlet entering the backside of the TV12LT For this reason the overflow outlet must be connected to a waste container When the bath is working at high temperatures tubing and...

Page 10: ...in two functions When cooling down to the set point temperature maximum cooling capacity is used Whe the set point temperature is reached the bath will start to tune for stable control It also switch...

Page 11: ...1 2015 NL PRO 238239125 VAT NL 80 66 34 984 B01 Bank account no NL28 INGB 0007 350 370 NL95 RABO 0160100046 Chamber of commerce 27 16 95 41 3 5 Connecting Before plugging TV12LT into the mains socket...

Page 12: ...emperature control and setting The bath temperature is regulated using a Pt 100 temperature probe which is connected to a microprocessor module The advanced electronic control system continually compu...

Page 13: ...hermostat 8 Turn push button Use well grounded mains Before plugging the TV12LT into the mains socket make sure the voltage of the bath corresponds to the local voltage The front panel layout shows th...

Page 14: ...or is restarted the displayed value increases to a stable readout appears after a few seconds Ad 2 The controller calculates every second the amount of power which should be applied for stable contro...

Page 15: ...h temperature drops approximately 10 C below the pre set temperature To continue normal operation the bath has to be switched off and on again 5 1 Mechanical over temperature protection Turn the therm...

Page 16: ...t point PID settings All measuring results have been acquired using following PID settings Pb 25 I 16 D 0 Under different settings its possible to achieve even better values by trimming the PID settin...

Page 17: ...ath This menu item enables or disables the heater Standard value On Menu item Time const Used to select time to tune The option precise has to be used to reach maximum temperature accuracy Options are...

Page 18: ...O 0160100046 Chamber of commerce 27 16 95 41 Pb proportional band Proportional value P is found to be 100 Pb Off Standard value On Menu item Temp units C F Standard value C Menu item Baudrate 300 600...

Page 19: ...350 370 NL95 RABO 0160100046 Chamber of commerce 27 16 95 41 PID settings Following shows influence on stability with different PID settings Temperature 75 C Proportional band Pb 25 Integrator 16 Dif...

Page 20: ...rmined with the use of the Ziegler Nichols method described below With the process at its normal process value Set the integral time Ti and the derivative Time Td to off Check if the Lcb and Hcb are s...

Page 21: ...Chamber of commerce 27 16 95 41 8 Maintenance Very important Keep the condenser free from dus Remove side panel Use vacuum cleaner to remove dust Dust builds up depending on environment Regularly che...

Page 22: ...r is not turning The motor fuse is activated Restart the motor by pressing the motor fuse This fuse is located at the backside of the top casing Also check viscosity of the bath fluid High viscosity w...

Page 23: ...he bath fluid used is too high The maximum viscosity of the bath fluid lies below 10 mm s at the operating temperature but is preferably less than 3 mm s If the viscosity of the bath fluid used is too...

Page 24: ...elements are submersed 9 1 Over temperature safety thermostat When the thermostat is activated the entire bath is switched off with the exception of the controller the red system error LED will light...

Page 25: ...mperature 5 C Proportional band Pb 25 Integrator 16 Differentiator 0 Min max 0 013 C Temperature 20 C Proportional band Pb 25 Integrator 16 Differentiator 0 Min max 0 015 C 10 2 Cooldown 10 3 Settling...

Page 26: ...mostatic baths contain heating Simple bath constructions have a single heater and stirrer for circulation This causes random energy distribution and poor homogeneity The heating energy is distributed...

Page 27: ...O 0160100046 Chamber of commerce 27 16 95 41 When aligning viscometers or sensors in horizontal position they will all have the same temperature Front view Side vie 1 2 T 3 Side view 4 T Devices have...

Page 28: ...Amp 25T1123 n a Compressor 230V 50Hz 25T1127 n a Compressor 230V 60Hz 25T1126 Compressor 115V 60Hz 25T0351 DC Heater W 25T0404 Window heating 4x 115V placed in series 24T8581 Over temperature protecti...

Page 29: ...tive of the European Parliament and of the Council of 17 May 2006 42 EC 2nd Edition June 2010 p d EN 60204 Machinery Directive and Safety requirements p pi e EN60950 1 Low Voltage Directive p f EN6100...

Page 30: ...uarantee Conditions of use and suitability of the product for particular uses are beyond our control all risks of use of the product are therefore assumed by the user We expressly disclaim all warrant...