Illustration includes optional equipment Climate Test Chamber System Weiss Type WK3-600/70
FACTS Operation, monitoring and documentation of the test chamber are realised by the control and programming Simpac. A clearly-arranged 8 TFT colour touch screen display serves as interface between man and machine (easy, menu-guided display, no programming knowledge required). An easily legible CONTROLPAD for indication of actual values is integrated in the door. An Ethernet interface for communication with a customerprovided computer system is available. A USB interface for recording measured values via USB stick is additionally integrated. It guarantees complete documentation. Monitoring and supervision possible from each workstation. Highly accurate temperature and climate conditions are achieved by an auto-adaptive control system that continuously optimises the control behaviour. Error diagnosis system and inspection system for support of maintenance and repair. A performance-optimised climate and temperatureconditioning system creates power reserves The hermetic refrigeration systems work with environmentally friendly refrigerants that are free from chlorine and have no ozone-reducing potential (CFC-free). 2 stainless steel ports (50 and 125 mm Ø) are installed as standard.
Central supply connections in back part of the system Large and easily accessible water tank Easily accessible maintenance elements guarantee minimum service times (condenser, water tank, psychrometer). Self-cleaning humidity sensor, thus considerable increase in service life of psychrometer. High humidification performance to fulfil modern test standards Automatic water supply of humidification system with demineralised water. Contamination of humidification water is prevented. The humidity bath flushing is standard. Integrated switchable condensation protection prevents condensation formation on specimen during heat-up phase. Optimum air guidance and temperature distribution better than ±1.5 K spatially guaranteed The units are designed for the performance of extreme climate values (e.g. long term tests at 85 C/85 % RH). Extreme installation conditions trouble-free operation can be guaranteed at ambient temperatures of up to 35 C. Low noise pressure level
Technical Description Test standards for Climate Test Chambers Note! The temperature values specified in the standards (inspection levels) are limited by the highest and lowest test space temperature. The choice of the adequate test system depends on the temperature change rates during alternating tests. The requirements are met if the test system capacity is high enough to compensate the influence of the specimen and its heat dissipation in the relevant capacity range. Certain test standards with contaminated specimen require the optional cleaning device (mat. no. 64609956) to ensure the required water quality. Cold IEC 60068-2-1, Test A IEC 60721-4 ISO 16750-4, Low temperature ETSI EN 300019-2-4, Test Ab/Ad MIL-STD-810 G, Meth. 507.5 MIL-E-5272, Teil 4.2 JESD22-A119 Heat IEC 60068-2-2, Test B IEC 60721-4 ISO 16750-4, High temperature ETSI EN 300019-2-4, Test Bb/Bd MIL-STD-202 G, Meth. 108A MIL-STD-810 G, Meth. 501.5 MIL-STD-883 J, Meth. 1008.2 MIL-E-5272, Teil 4.1 JESD22-A103D Constant climates IEC 60068-2-67 IEC 60068-2-78 IEC 60721-4 ISO 16750-4, Damp heat steady ETSI EN 300019-2-4, Test Cab MIL-STD-202 G, Meth. 103B JESD22-A101C Alternating temperatures IEC 60068-2-14, Test Nb IEC 60721-4 ISO 16750-4, Temp. steps ISO 16750-4, Temp. cycling ETSI EN 300019-2-4, test Nb. MIL-STD-331 C. Test c6 JESD22-A105C Alternating climates IEC 60068-2-30, Test Db, Var. 1 IEC 60068-2-30, Test Db, Var. 2 IEC 60068-2-38 IEC 60068-2-4, Test D IEC 60721-4 ISO 16750-4, Damp heat cyclic ISO 16750-4, Tem/humid, cyclic ETSI EN 300019-2-4, Test Db VG 95210, Blatt 7, Meth. 106C MIL-STD-202, Meth. 106D MIL-STD-331 C, Test C1 MIL-STD-750-1, Change 3 MIL-STD-810 G, Meth. 507.5 MIL-STD-883 J, Meth. 1004.7 MIL-E-5272, Teil 4.4 JESD22-A100D IEC 60068-2-14, Test Nb Temperaturwechsel mit festgelegter Änderungsgeschwindigkeit A = Beginn des ersten Zyklus IEC 60068-2-30, Variante 2 IEC 60068-2-38, Test Z/AD
Technical Data WK3-600/70 Test Chamber Test chamber material Material of test space floor stainless steel, 1.4301, surface III D polished 1.4404, matt surface Test area dimensions height approx. 950 mm width approx. 800 mm width between shelf supports approx. 760 mm depth approx. 800 mm Volume of test chamber Max. loading Max. loading of test chamber floor Max. load per shelf Max. load of shelf supports approx. 600 l 160 kg 80 kg distributed load 40 kg distributed load 80 kg Exterior Housing Material double-coated galvanised steel sheet Dimensions of housing height approx. 2005 mm width approx. 1000 mm depth approx. 1750 mm Overall dimensions 1) height approx. 2005 mm width approx. 1095 mm depth approx. 1910 mm Finish Door Feet two-coloured, solvent-free, powder coated corpus grey-white (RAL 9002) front violet-blue (RAL 5000) hinged on the left, lockable, optimum contact pressure adjustable, vibration absorbing 1 The required clearances can be reduced by dismounting components
Installation Drawing Stainless steel port included in basic design R1: approx. 125 mm L1: approx. 50 mm R2 1... further installation position right L2 1... further installation position left D1 1 installation position in ceiling 1. Main switch panel 2. 8 colour touch panel 3. CONTROLPAD 4. Condensation drain 5. Power supply cable length approx. 3.5 m 6. Door without window 8. Cooling water supply 1 9. Cooling water drain 1 10. Water supply (demineralised, H 2 O) 13. Slotted port 1 14. Compressed air connection 1 # Width between shelf supports 1 Option
Equipment Shelf Stainless steel ports Condensation protection 1 pc., stainless steel 1 pc. approx. 125 mm, right side wall 1 pc. approx. 50 mm, left side wall each port incl. 1 silicone plug closed 1 slotted plug made of foamed silicone condensation cooler for prevention of condensation formation on specimen 8 TFT colour touch display fixed to front bracket CONTROLPAD Control and programming integrated in door, for display of actual values and modification of operating state digital measuring and control system Simpac Interfaces 1 Ethernet interface (100/10 Megabit) for integration into network 1 USB interface for direct documentation of measured data via USB stick (USB stick not included in scope of supply) or as a printer interface Safety temperature limiter Specimen protection High temperature protection of humidification device Specimen switch-off Software temperature limiter factory-set high/low temperature fuse according to EN 60 519-2, with separate sensor, thermal safety class 2 high temperature controller potential-free contact tmin/tmax Digital I/O 4 digital outputs for control of customerprovided devices by means of potential-free contacts, load max. 24 V-DC, 0.5 A 4 digital inputs for feedback of customer provided devices, load max. 24 V-DC, approx. 30 ma
Performance Data Performances for temperature tests Maximum temperature +180 C Minimum temperature -72 C, discontinuously 2) Temperature change rate cooling according to IEC 60068-3-5 3) Temperature change rate heating according to IEC 60068-3-5 3) Temperature change rate linear between +85 C to -40 C Temperature deviation, in time, in steady state, depending on the temperature Temperature homogeneity, in space, depending on the adjusted set point value³ Max. heat compensation approx. 2.5 K/min., on average, measured in the air inlet approx. 4.0 K/min., on average, measured in the air inlet approx. 1.0 K/min., measured in the air inlet ±0.1 K to ±0.5 K ±0.5 K to ±1.5 K 2500 W Calibration values +23 C and +80 C 2) In case of continuous, long-term operation below +5 C ice might form on the evaporator if outer humidity is allowed to enter the chamber, for instance, by open apertures, doors or if additional humidity is generated by specimens or others. In these cases, the evaporator needs to be defrosted from time to time by heating up to +10 C. ³ ) In the temperature range of minimum temperature to +150 C.
Heat dissipation [W] Temperature [ C] Performance Diagrams Cooling and heating rates 200 150 100 50 0-50 -100 0 20 40 60 80 100 120 140 160 Time [min] 600/70 Heat dissipation diagram 3000 2500 2000 1500 1000 500 0-100 -80-60 -40-20 0 20 40 60 80 100 120 140 160 180 200 Test space temperature [ C] 600/70
Performances for climate tests according to IEC 60068-3-6 Maximum temperature +95 C Minimum temperature +10 C Dew point temperature range +4... 94 C (down to -3 C 4 ) Humidity range Humidity constancy, in steady state, depending on the climate value Temperature deviation, in time, in steady state, depending on the temperature Temperature homogeneity, in space, depending on the adjusted set point value³ Max. heat compensation Calibration values 10... 98 % RH ±1 to ±3 % RH in time ±0.1 K to ±0.3 K ±0.5 K to ±1.0 K 500 W between approx. +25 C... +90 C and humidities of up to approx. 90 % RH +23 C / 50 % RH and +95 C / 50 % RH Humidity diagram A Test space temperature in C B Relative humidity in % r. h. 1 standard humidity range 2 range with discontinuous operation (dew point temperature +4 C to -3 C) 3 increased humidity range with compressed air dryer, dew point to -12 C controlled (as option) 4 increased humidity range with compressed air dryer (as option) and capacitive humidity measuring system (as option), dew point to -20 C controlled ³ ) In the temperature range of minimum temperature to +150 C. 4) intermitting operation
Control and Programming Simpac Control/PLC Operation/monitoring unit The infotainment system comprises the operation/programming and monitoring system Limit value monitoring system Diagnostic system Simpac control with I/O system Windows CE Embedded CONTROLPAD integrated in door front 8 TFT colour touch display for temperature and humidity for information on operating times and possible operating failures Other Power supply Mains plug 3/N/PE AC 400 V ±10 % 50 Hz, different voltages and frequencies optional CEE-plug, 32 A Protection type Test chamber IP 22 Electrical / operating panel IP 54 Noise emission as per EN 61000-6-3 Noise immunity as per EN 61000-6-2 Max. connected load Max. current consumption Sound-pressure level, measured in 1.6 m height under free field conditions acc. to EN ISO 11201 at 1 m distance in front of the system Refrigeration unit approx. 9.1 kw approx. 19 A approx. 62 db(a) hermetic, air-cooled refrigeration system, CFC-free, without ozone-depleting potential, condenser air-cooled
Heat dissipation to the installation room Humidification water Purge device Condensation drain Insulation Weight max. 7.2 kw fully-demineralised, conductivity 5-20 S/cm, ph-value 6 7, automatic supply (also possible manually), integrated reservoir with a volume of approx. 20 l Consumption: at +40 C, 92 % r.h. approx. 2 l/24 h cyclic water exchange back-pressure-free, ¾" external thread or hose connection 12 mm free from asbestos and CFC approx. 680 kg The above mentioned output data is based on an ambient temperature of max. +25 C, 400 V/50 Hz nominal voltage, without specimen, without additional equipment and heat compensation. The admissible ambient conditions range from +10 to +35 C. The allowable relative air humidity must not exceed 75 % r.h. Subject to technical modifications.
Design and Functional Description Design The climate test chambers System Weiss are supplied ready for connection. Compact design means a minimum of space is required. No more assembly and commissioning on site. The machine section incorporating the refrigeration unit, the water storage tank and the water pump is located below the test chamber. The swing-out switch cabinet is located on the rear of the chamber. The operating elements and the main switch are located on the right hand side of the chamber. Exterior housing The exterior housing of the unit is made from lightweight corrosion-resistant, self-supporting, galvanised sheet-steel and lacquered in two colours. The environmentally-friendly insulation between test chamber and exterior housing guarantees best insulation values and minimum operating costs. The system is delivered with adjustable, vibration absorbing feet. Illustration includes optional equipment Test space The test space consists of a stainless-steel container and is welded vapour-tight. The test chamber is easy to clean thanks to special welding, smooth surfaces, rounded edges and embossed shelf supports. The rear test chamber wall incorporates a recirculated-air duct with builtin humidifier tub, built-in heat exchanger, electric heaters and a recirculated air fan. Air guidance via baffle plates in the test chamber floor and ceiling produces optimum ambient air and temperature distribution.
Test chamber door The test chamber door opens fully for easy access and is provided with high quality insulation. A perfect seal is guaranteed by special profile seals. The optimum contact pressure is ensured. An illuminated observation window is available as an option. The CONTROLPAD is integrated in the test space door. Illustration includes optional equipment Stainless steel ports All sizes have two stainless steel ports, which are integrated in the left and right side walls and can be used for measuring and control wires, other supply connections or accessories. If not required, these ports are closed from the outside with thermally treated silicone plugs supplied as standard.
Temperature and humidity conditioning The generously dimensioned axial fan with an external drive motor draws the air out of the space. (The test chambers with a test space volume of 1000 l and 1500 l have two circulating fans each). This circulating air then flows through a fin-type heat exchanger in which it is cooled if required. Special circuits prevent any undesired formation of condensate on the heat exchanger during climatic operation and ensure the best possible temperature and humidity constancies in time. An electrical heater, installed behind the heat exchanger in air direction, heats the circulating air. The air then passes over a water bath; integrated heating and cooling elements ensure quick and precise temperature-conditioning of the water and aerosol-free humidification and dehumidification. The humidity of the test space air depends on the water temperature. The re-developed, patented climatic system enables a high relative humidity even with a heat load. Psychrometric humidity measurement The humidity of the test space air is measured according to the internationally valid psychrometric measuring principle with two resistance thermometers Pt 100 as per DIN IEC 751. Dry and wet bulb sensors are arranged next to each other in the circulating air flow. Depending on the climate the material of the wet bulb sensor is humidified. The life time is increased considerably due to self-cleaning mechanism!
Protection system against condensation The protection system consists of a dehumidifying evaporator which prevents condensation forming on the specimens as they heat-up after tests at low temperatures. The protection system's operating range is -40 to +60 C. The protection system against condensation is activated by a digital switch channel. It is possible to switch on the protection system manually or to integrate it into a program. Dew point extension from +4 C to -3 C In this working range the humidity constancy in time is < ±5 % r.h. The extended working range can be operated at intervals. The max. operation time without defrosting is approx. 24 hrs.
Control system Simpac Simpac is a self-monitoring, digital 32 bit measuring and control system and has been designed especially for the use in test systems. Thanks to its computing efficiency Simpac meets the requirements of process technology and facilitates the input due to the touch panel that has been especially developed by Weiss Umwelttechnik. Operation is via the 8 colour touch display which is installed on the front bracket of the door. The display provides information on the current temperature and relative humidity in the unit. Its function keys are available for direct switching on and off of testing and of the test chamber lighting. It has an alarm display and an acoustic alarm. The diagnosis system is activated on the touch display at the touch of a button. A USB stick can be used for recording of set points and actual values. This data is archived every minute and can then be imported to a PC for later evaluation in Microsoft Excel or a similar program. It is to made sure that the USB stick is not bootable, otherwise the Simpac control system cannot start when being switched on. The software is available in German, English, French, Chinese, Korean and Russian. Control is governed by the 32-bit I/0 system Simpac with integrated Soft PLC. If desired, information on test, diagnosis and maintenance will be made available on the intranet via Ethernet, using a web server. Two customer protocols (ASCII-1, ASCII-2 and SimServe) are integrated in the test chamber. A host customer system allows the test chamber to be controlled and monitored via an Ethernet / RS 232 interface (optional) and the customer protocols. The standard climate chambers can be controlled via the ASCII-1 and ASCII-2-Basic protocols. It is possible to control each test chamber extension via the ASCII-2-Dynamic and SimServe protocols.
The ASCII-2-Dynamic protocol can be modified by programming the host customer system accordingly. ASCII-2-Customized (optional) Adjustment of ASCII-2 according to customer requirements or to an existing reference chamber. Remote control and monitoring (Online Service) If the unit is connected to the network, it can be reached and even controlled at almost any place in the world. To that end, network access to the file system of the unit on the intranet is sufficient or, after authorisation clearance, on the internet itself. Operation is the same on the unit or on the network and there is full access to all simulation programs and saved archives. Networking The units are compatible with the Simpati software package (as of version Simpati-4) and can be integrated into their networking environment. (Data logging operation in Simpati).
Permanently memorised overheating safety thermostat A steady state overheating safety thermostat is installed that automatically switches off the heater if the test chamber's maximum temperature range is exceeded. Protection of Specimen Specimen protection via independent, adjustable temperature limiter tmin/tmax. The sensor is installed in the test space. Protection of Humidifier against Overheating The water bath of the climate test chamber is protected against overheating. Switch-off of Specimen Specimen switch-off via potential-free contact, designed specifically for heat dissipating specimen, on socket, max. load 24 V, 0.5 A. Software Temperature Limiter tmin and tmax can be set at the control panel.
Power Supply Each functional circuit is equipped with its own safety device, which, in the event of trouble, turns off the affected circuit or the entire chamber. The nature of the trouble is visually displayed. Wiring and electrics are governed by the latest technology and strictly conform to safety regulations for electrical installations and materials, as well as to relevant VDE regulations. Weiss Test Systems are equipped with a lockable main switch according to VDE. Technical Documentation/Operating Manual The technical documentation includes: 1 operating manual for chamber 1 operating for control unit Service manual incl. PI diagram, wiring diagram and units/parts list Declaration of conformity Calibration certificate Quality inspection certificate Print-out of control parameters
General Information In the constant effort to improve our product, we reserve the right to make construction or design changes without notice or obligation. The admissible ambient temperature for storage of the chamber is +55 C (+131 F). The test chamber can also be operated with 3/N/PE AC 380 V ±10 % 50 Hz. The main difference is that the heating rate is reduced by approx. 10 % at a nominal voltage of 380 V. Accuracy rates are proven in the test space centre with empty test space, in steady state, without specimens, without radiation and without additional equipment in the test space. The cooling down rate stated refers to the temperature range without controlled humidity. Noise measurements and sound level data are effected as per DIN 45 635, part 1, accuracy class 2. Please keep in mind that outgassing of specimens and connection lines might cause corrosion of components. Corrosive gasses might escape among others from chip boards, cardboard boxes and bandaging materials. If outgassing is to be expected, we recommend an optional ventilation of the test space with a purge air volume. If outgassing or pollution is expected, we also recommend a regular maintenance of the measuring system Since 4 th July 2007, operators are obligated to test all stationary refrigeration and air conditioning systems from a capacity of 3 kg FC and HFC (i.e. R 404 A and R 23)for their tightness at least once a year and to keep a system logbook. We would be pleased to conduct these tasks for you as a competent partner! Please do not hesitate to ask us! 1 applies to refrigerants R 404 A and R 507; the temperature for R 134 a and R 23 is approx. +75 C (+167 F).
Even with perfect manufacturing and maintenance faults can still occur. These failures may cause damage of your test specimens. If you wish to avoid these (e.g. valuable specimens) please contact us so we may advise you on the necessary additional measures to be taken. Management System Unternehmen EG-Konformitätserklärung Weiss Umwelttechnik GmbH D-35447 Reiskirchen Greizer Str. 41-49 Hiermit erklären wir, dass die nachfolgend bezeichnete Maschine aufgrund ihrer Konzipierung und Bauart, sowie in der von uns in Verkehr gebrachten Ausführung den einschlägigen, grundlegenden Sicherheits- und Gesundheitsanforderung der EG-Richtlinien entspricht. Bei einer nicht mit uns abgestimmten Änderung der Maschine verliert diese Erklärung ih Gültigkeit. Die Sicherheitshinweise der mitgelieferten Produktdokumentation sind zu beachten. Dieses Dokument ist dauerhaft aufzubewahren. Unsere Auftrags-Nr / Ihre Bestell-Nr / Ihre Bestellung vom Produktbezeichnung / Typ / Geräte-Nr / Angewandte EG-Richtlinien Angewandte harmonisierte Normen Angewandte nationale Normen Please note that the sealing material and cable insulation used in our test units and systems contains thermally treated silicone, i.e. emissions inside the test space are low. If the test space must be free from emissions please contact us. This can be offered upon request. The concept and design of the test units and systems manufactured and installed by WUT are in accordance with the relative, presently valid safety requirements and regulations of the ECstandards. The above regulations are adhered to when modifications or extensions are performed on site. Angaben zum Unterzeichner Datum / Unterschrift The EMC test and the data on the noise emission are in accordance with EN 61000-6-3 and EN 610006-2. A manufacturer s calibration of the temperature values is performed using calibrated measuring equipment and will be documented by a certificate. A calibration of specific temperature and humidity values can be offered if required. We reserve all rights for the presentation and transmission - oral or in writing - of this quotation, in total or in parts. All former quotations sent to you regarding this enquiry are no longer valid!
Scope of Supply Mat. No. Description Climate Test Chamber, System Weiss, Type WK3-600/70 complete and ready for connection, including: Digital measuring and control system Simpac 8 TFT colour touch panel, fitted at the front bracket CONTROLPAD in the door for actual value display Auto-adaptive control system with continuous selfoptimisation Ethernet interface USB interface Self-cleaning psychrometric humidity sensor Condensation protection with dehumidifier coil to prevent condensation on the specimen 1 stainless steel port approx. 50 mm, positioned in left side wall 1 stainless steel port approx. 125 mm, positioned in right side wall Digitally adjustable high/low temperature fuse with separate sensor 1 shelf (stainless steel) Air-cooled refrigeration unit with environmentallyfriendly refrigerants Water storage tank incl. level indicator and automatic water supply Purging device for humidification water Adjustable, vibration absorbing feet 4 digital inputs and outputs Protection and switch-off of specimen Calibration of 2 temperature and 2 climate values Technical documentation / operating manual