Work Operation Low Temperature Chamber - Xebex.jp

Work Operation Low Temperature ChamberWU-200WT-201CAT.NO.E07113

Work operation low temperature chambersenabling simultaneous testingand specimen handlingTo meet the demand for low temperature chambers that allow specimen handling during testing,ESPEC has created models that maintain a stable temperature environmentin the chamber using an air curtain.These are table models that enable seated operation,and feature an all-glass power sliding door for easy specimen viewing.

UtilityCompact chambers with the high performance demandedfor standards testingAir curtain prevents specimendew condensation or chambertemperature variations whendoor is opened halfway.Air flowing down the door surfacereduces the amount of outside airentering the chamber. It preventsspecimen dew condensation and reduceschamber temperature fluctuation whenthe door is partially opened to allowmanipulation of specimens. If outsideair enters the chamber, it is sucked intothe bottom of the chamber front panel,allowing a stable chamber environmentto be maintained.Outstanding temperatureuniformity creates idealchamber environmentThe controlled test environment has atemperature uniformity of 0.5 overa wide temperature range of 40 to85 (model WU-200).Rigorous testing at lowtemperaturesA reach-in port guard can be used forlow temperatures, to prevent effectsfrom outside air and enable moreextensive testing.OutletInletChamber air flowHeaterAir circulatorCoolerWith reach-in port guardOperating temperature range when using reach-in port guard(in ambient atmosphere of 28/50rh, wind speed of 0.2m/s max.)161514Continuous operation time (hours)12108642Time-temperature zonerequiring reach-in port guard0-40 -30 -20 -10 0 10 20 30Chamber temperature ()WT-201WU-200• When the control section is open, the chamber can be operated continuouslyfor up to about 15 hours.• The reach-in port guardÕs operating temperature range varies according to the handlingtime, the number ofhandling operations and the ambient temperature/humidity.

UtilityDehumidifier function to prevent dew condensation(between 20 and 60)Temp. ()806040200-200Refrigerator ONRefrigerator OFFDew condensation formation on inner door surfaceLow humidity maintained inside chamber5 10 15 20 25 30 35Elapsed time (minutes)Chamber temp.Chamber temp.Chamber humid.Chamber humid.Humid. (%rh)806040200Dehumidifier function preventsdew condensation on specimensand inside glass doorESPEC's work operation chamberscome with an automatic dehumidifierfunction to prevent dew condensationforming on specimens or inside the glassdoor when the temperature is raisedfrom low to high.All-glass door provides clear viewof specimens even at 40The all-glass door makes the inside ofthe chamber easily visible. Made of apair of glass layers separated by an airlayer, the door has a heating element toprevent fogging or dew condensation. Alight in the chamber makes specimensclearly visible.With door half-openWith door fully openVertically sliding power door isdesigned to be easy to use andsave spaceThe door is an easy-to-operate powersliding type that can be locked in placeat the half-open position (opening heightof 125mm). When fully open, its wideopening height of 380mm enables easyspecimen loading. For safety, the doorhas an emergency stop switch andphotoelectric sensor.Table models enable seated workESPEC's work operation chambers aretable models that measure just 750H 750W 440Dmm. They make it easyto handle specimens from a seatedposition. Operators can remain seatedwhen carrying out extended test setupprocedures or operation test procedures,making their work easier.Designed for fight spacesThe top ventilation design eliminates theneed for extra space behind of the testchamber. Protrusions at both sides havebeen eliminated, enabling parallelconnection of measuring instruments orother devices. Casters are also providedfor easy movement.

UtilityRegister up tothree test temperature settingsusing a simple,easy-to-operate designThe easy-to-read panel display and neweasy-to-operate instrumentation let youregister up to three user-set testtemperature settings.Measure specimentemperatures, for display onoperation panelA specimen temperature input terminaland thermocouple are providedstandard, letting you measure specimensurface or internal temperatures.Measured temperatures are displayed onthe operation panel.Refrigerator defrost switchprovides easy defrostingThe defrost function makes it easy todefrost the cooler. When defrosting, youcan operate the refrigerator for a presetamount of time to prevent the humidityin the chamber rising. Defrosting takes90 minutes. You can set the mode ofoperation after defrosteither testrestart or standby.Safety functions preventequipment problems fromdamaging importantspecimensSeveral safety functions are provided toprevent equipment problems fromdamaging specimens. For example, aspecimen power supply control terminalsimultaneously shuts off the power tothe test chamber and disconnects powerto the specimens when an error occurs.There are upper and lower temperaturelimit alarms and an automatic overheatprotection function triggered at 10over the set temperature. There is alsoan independent overheat protector forthe test chamber itself.Operation panel(model WU-200; overcool protector is an option)TEMPERATURE INDICATOR-CONTROLLEROperating modeIndication resolutionInputControlCommunication functionAuxiliary functionsPreset constant operation (3 settings)0.1Thermocouple type T (Copper/Copper-Nickel)PID controlE-BUS functionStable display functionSpecimen temperature display functionCalibration functionPower failure recovery operation selection functionManual defrost functionUpper and lower temperature limit alarm functionInput burn-out detection functionAutomatic overheat protection functionChange in chamber temp./ humid. while defrostingStartTemp. About 50 min.()100Refrigerator operating806040200-200Change in chamber humid.Change in chamber temp.About 30 min.10 20 30 40 50 60 70 80 90 100 110Elapsed time (minutes)EndRefrigerator stopped Refrigerator operating92rh max.Humid.(rh)100806040200

SPECIFICATIONModel WU-200 WT-201Temperature control systemOperating temperatureRecommended ambient environmentBalanced temperature control system (BTC system)5 to35 (41 to 95ûF)Withdoor closed/ reach-in port guard in use: Temperature of 5 to30 (41 to 86ûF)Withdoor half-open: Temperature of 5 to28 (41 to 82.4ûF), humidity of 50%rh max.,wind speed of 0.2m/s max.Performance *1Temperature rangeTemperature fluctuation *2Temperature uniformity *240 to 85 (40 to 185ûF)0.3 (0.5ûF)0.5 (0.9ûF)20 to 70 (4 to158ûF)Temperature heat-up time 40 to 85 (40 to 185ûF) within 70 min. 20 to 70 (4 to 158ûF) within 60 min.Temperature pull-down time 20 to 40 (68 to 40ûF) within 60 min. 20 to 20 (68 to 4ûF) within 25 min.IlluminanceNoise level *3ConstructionFittingsDimensionsRefrigeration systemRefrigeratorCoolerHeaterAir circulatorDoor operationDoor glass *4Inside dimensions *5Load capacity in chamberDoor opening sizeEffective areaOutside dimensions200 lx min. (at center of table surface)60dB (withdoor fully closed)Mechanical type single-stage refrigeration systemHermetically sealed rotary compressor (for use withHFC-based refrigerant)Plate fin coolerNichrome strip wire heaterSirocco fanVertically sliding power doorOutside: Tempered glass; Inside: Multilayer glass withheating elementChamber lamp (100V AC, 13W), Specimen temperature input terminal, Temperature sensor terminal, E-BUS connector, Cable port (¿50mm), Casters (4 freewheeling casters with adjustable feet), Power cord (2.5m), Drain hose (¿12mm inner diameter)750W 460H 440D mm (29.5W 18.1H 17.3D inch)30kg (equally distributed load)Half-open : 125mm (4.9 inch) opening heightFully open: 380mm (14.9 inch) opening heightApprox. 140LWithdoor fully closed: 990W 1370H 980D mm (38.9W 53.9H 38.5D inch)Withdoor fully open : 990W 1815H 980D mm (38.9W 71.4H 38.5D inch)Dimensions required for installationWeightPower supplyMaximum power consumption, current1040W 1420H 1030D mm (40.9W 55.9H 40.5D inch)370kg200V AC 3¿ 50/60Hz (power supply voltage fluctuation: within 10 of rated value)Power equipment switchcapacity: 250V AC, 30A6kVA, 17A*1: Value for ambient temperature of 23 (73.4ûF), withchamber empty and door fully closed.*2: In accordance withJTM (Standard of Testing Machinery Association of Japan) K01-1998.*3: Noise level is measured in an anechoic room, at 1 meter away from the front of the chamber, and 1.2 meters above the floor.(In conformance withJIS Z 8731, Characteristic A)*4: Dew condensation may form on glass if power voltage is low and ambient humidity is 70rh or higher.*5: Excluding air curtain unit.DANGERDo not use specimens which are explosive or inflammable, or which contain suchsubstances. To do so could be hazardous, as this may lead to fire or explosion.The chamberÕs insulation may not be able to withstand operation for extendedperiods with the reach-in port guard, and frost or dew condensation may form.Using the reach-in port guard for operation below 0 could damage the chamber.Contact ESPEC for information on operating the chamber below 0.Be sure to read the instruction manual before operation.CAUTION

DIMENSIONSFrontSide980 (38.5)Unit: mm (inch)990 (38.9)750 (29.5)1370 (53.9)1815 (71.4) *290 (11.4)460(18.1)440 (17.3)750 (29.5)590 (23.2)330 (12.9)* With door fully openSAFETY DEVICES• Leakage breaker for power supply• Air circulator temperature switch• Electrical compartment door switch• Short circuit protection fuse for control circuit• Reverse-prevention relay• Circuit protector• Refrigerator safety circuit(high-pressure switch, thermal relay, temperature switch)• Door motor overload shutoff circuit• Door emergency stop switch• Photoelectric sensor• Overheat protector• Thermal fuse• Specimen power supply control terminalOPTIONS• Paperless recorder (portable type)Temperature range: 50 to 100Number of inputs: 1 (5 more channels can be turned ON)Data saving cycle: 5 sec.External recording media: CF memory card (32MB)Paperless recorder (portable type)ACCESSORIES•Reach-in port guard 1• ConnectorFor specimen power supply control terminal 1For thermocouple 2• Thermocouple (2m) 1• Cable port rubber plug (50mm) 1• Cartridge fuses 10 A 23 A 1• User's manual 1• Temperature recorder (installed separately): 100mm, 6 dots• Overcool protector• Thermocouple type T (Copper/Copper-Nickel): 2m, 4m, 6m• Cable port rubber plug• E-BUS cables: 5m, 10m