Technical Description. Climate Test Cabinet with increased change rates. Stress Screening System Weiss. Mat. No.: Type

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Maryann Sanders
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1 Illustration includes optional equipment Technical Description Climate Test Cabinet with increased change rates Stress Screening System Weiss Mat. No.: Type Page 1 of 20

2 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 adaptive control system that continuously optimises the control behaviour. Error diagnosis system and inspection system for support of maintenance and repair. Performance optimized climate and temperature conditioning system for ESS tests The hermetic refrigeration systems are operated with environmentally-friendly refrigerants that are free from chlorine and have no ozone-depleting potential (CFC-free). 2 stainless steel ports (50 and 125 mm Ø) are installed as standard. Central supply connections in rear part of the system Page 2 of 20

3 Large and easily accessible water tank Integrated service information system 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. 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 Page 3 of 20

The choice of the adequate test system depends on the temperature change rates during alternating tests.

4 1 Technical Description 1.1 Test standards for climate test cabinets with fast temperature change rates 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 ) to ensure the required water quality. Cold IEC , Test A IEC ISO , Low temperature ETSI EN , Test Ab/Ad MIL-STD-810 G, Meth MIL-E-5272, Teil 4.2 JESD22-A119 Heat IEC , Test B IEC ISO , High temperature ETSI EN , Test Bb/Bd MIL-STD-202 G, Meth. 108A MIL-STD-810 G, Meth MIL-STD-883 J, Meth MIL-E-5272, Teil 4.1 JESD22-A103D Constant climates IEC IEC IEC ISO , Damp heat steady ETSI EN , Test Cab MIL-STD-202 G, Meth. 103B JESD22-A101C Alternating temperatures IEC , Test Nb IEC ISO , Temp. steps ISO , Temp. cycling ETSI EN , test Nb. MIL-STD-331 C. Test c6 JESD22-A105C Alternating climates IEC , Test Db, Var. 1 IEC , Test Db, Var. 2 IEC IEC , Test D IEC ISO , Damp heat cyclic ISO , Tem/humid, cyclic ETSI EN , 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 MIL-STD-883 J, Meth MIL-E-5272, part 4.4 JESD22-A100D IEC , Test Nb Temperature change with defined change rate A = Start of first cycle IEC , Variant 2 IEC , Test Z/AD Page 4 of 20

5 1.2 Technical Data WKS 3-480/70/ Test Space Material Material of test space floor stainless steel, , surface III D polished , surface matt Dimensions height approx. 950 mm width approx. 800 mm width between shelf supports approx. 760 mm depth approx. 650 mm Volume max. load max. load of test chamber floor max. load per shelf max. load of shelf supports approx. 494 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 mm width approx mm depth approx mm Overall dimensions height approx mm width 1) approx mm depth approx mm Finish Door two-coloured, powder coated corpus grey-white (RAL 9002) front violet-blue (RAL 5000) hinged on the left, one-hand-operation, lockable 1) The required clearances can be reduced by dismounting components Page 5 of 20

6 1.3 Installation Drawing Port included in basic design R1: approx. 125 mm L1: approx. 50 mm R further installation position right L further installation position left D1 1 installation position in ceiling 1. Main switch panel 2. Colour touch panel 3. Socket board 4. Connection for overflow and condensation drain 5. Power supply cable length approx. 3.5 m 6. Door without window 8. Cooling water supply 1 9. Cooling water drain not applicable 13. Slotted port Compressed air connection 1 # Width between shelf supports 1 Option Page 6 of 20

7 1.4 Equipment Shelf Max. amount of shelves Stainless steel ports 1 pc., stainless steel 11 pcs. in 60 mm distance 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 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 Specimen protection Safety temperature limiter High temperature protection of humidification device Specimen switch-off Software temperature limiter high/low temperature fuse according to EN , with separate sensor, thermal safety class 2 factory-set 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 Page 7 of 20

8 1.5 Performance Data Performance Data for Temperature Tests Maximum temperature +180 C Minimum temperature -72 C, discontinuously 2) Cooling-down rate as per IEC Cooling-down rate between C Heating-up rate as per IEC Heating-up rate between -40 C +85 C Temperature deviation, in time, in steady state, depending on the temperature Temperature homogeneity, in space, depending on the adjusted set point value³ Heat compensation at -20 C at +20 C approx K/min., on average, measured in the air inlet approx. 9.5 K/min., on average, measured in the air inlet approx K/min., on average, measured in the air inlet approx K/min., on average, measured in the air inlet ±0.1 K to ±0.5 K ±0.5 K to ±2.0 K 8000 W 8000 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 has to be defrosted from time to time by heating-up to +10 C. ³ ) In the temperature range of minimum temperature to +150 C. Page 8 of 20

9 1.5.2 Output Curve Cooling and heating rates Temperature [ C] Time [min] Heat dissipation diagram Heat dissipation [W] Test space temperature [ C] Page 9 of 20

1.5.3 Climate Tests according to IEC 60068-3-6 Maximum temperature +95 C Minimum temperature +10 C Dew point temperature range +4.

10 1.5.3 Climate Tests according to IEC Maximum temperature +95 C Minimum temperature +10 C Dew point temperature range C (to -3 C 2) ) Humidity range Humidity deviation in steady state, depending on the climatic 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 % r.h. ±1 to ±3 % r.h., in time ±0.1 K to ±0.3 K ±0.5K to ±1.0 K 500 W between approx. +25 C C and humidities to approx. 90 % r.h. +23 C / +50 % r.h. and +95 C / 50 % r.h. 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 ² ) intermitting operation ³ ) In the temperature range of minimum temperature to +150 C. Page 10 of 20

11 1.6 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 1.7 Other Power supply Mains plug 3/N/PE AC 400 V ±10 % 50 Hz, different voltages and frequencies optional CEE-plug, 63 A Socket shock-proof socket ( V, max. 2 A) Protection types Test cabinet IP 22 Electrical / operating panel IP 54 Noise emission as per EN Noise immunity as per EN max. connected load max. current consumption Sound-pressure level, measured at 1.6 m height under free field conditions at 1 m distance in front of the system Refrigeration unit approx. 17 kw appr. 30 A, the average current consumption is approx. 66 % of the max. current consumption approx. 73 db(a) hermetic, water-cooled refrigeration system with infinitely variable power adjustment by Simpac and CFC free refrigeration system Page 11 of 20

12 2-way cooling water controller for economic operation and performance-related cooling water withdrawal If glycol-containing coolant is used it must have no dezincifying effect! Heat dissipation to the installation room max. 2.0 kw Cooling water supply inlet R 1", outlet R 1 Cooling water consumption max. Cooling water requirements for cooling towers and closed cooling water systems Humidification water Condensation drain Purge device Insulation Weight 4.2 m³/h at 27/32 C cooling water temperature, the average cooling water consumption is ca. 2.1 m³/h reference values for quality of cooling water according to separate requisition form no pollutants, max. particle size <100 m required water pressure 2.5 to 6 bar differential pressure 2 bar water temperature +12 C to +28 C In case of divergences please state differential pressure or pressure ratio of cooling system. For operation with well, pond or river water special measures must be taken. Please contact us. fully-demineralised, conductivity 5-20 S/cm, phvalue 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 back-pressure-free, 12 mm hose connection cyclic water exchange free from asbestos and CFC approx 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 (with water-cooled design to an inlet temperature of +28 C). The admissible ambient conditions range from +10 to +35 C and the max. relative air humidity is 75 % r.h. Page 12 of 20

(10R) 2 Design and Functional Description 2.1 Construction The climate test cabinets System Weiss are supplied ready for connection. Compact design means a minimum of space is required.

The operating elements and the main switch are located on the right side of the unit. 2.

13 (10R) 2 Design and Functional Description 2.1 Construction The climate test cabinets System Weiss are supplied ready for connection. Compact design means a minimum of space is required. The machine section incorporating the refrigeration unit, the water storage tank and the water pump is located below the test chamber. The switch cabinet is located on the rear of the unit. The operating elements and the main switch are located on the right side of the unit. 2.2 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 thus lowest possible operating costs. Illustration includes optional equipment 2.3 Test Chamber The test chamber consists of polished, high-quality 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. Page 13 of 20

Environmental Stress Screening Chambers (WKSE) 2.

fully for easy access. It is provided with high quality insulation.

for door opening in case of excess pressure in the test space, operable with one hand.

5 Stainless steel ports All sizes have two stainless steel ports (approx.

14 Environmental Stress Screening Chambers (WKSE) 2.4 Test Chamber Door The test chamber is completely sealed by a door that is hinged on the left and opens fully for easy access. It is provided with high quality insulation. An optimum seal is guaranteed by the self-tightening locking mechanism which is fitted with a safety device for door opening in case of excess pressure in the test space, operable with one hand. The CONTROLPAD is integrated in the test space door. Illustration includes optional equipment 2.5 Stainless steel ports All sizes have two stainless steel ports (approx. 50 and 125 mm Ø), 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. Page 14 of 20

15 Environmental Stress Screening Chambers (WKSE) 2.6 Temperature and Humidity Conditioning The temperature and humidity conditioning system is optimized for ESS Tests (Stress-Screening-Systems) The large axial fan with exterior drive motor draws the air out of the test space. This recirculating air then passes a fin-type heat exchanger, which cools the air, if necessary. The special design of the refrigerating system avoids unintended condensation precipitation at the heat exchanger during climatic operation and guarantees highest temperature and humidity constancies in time. An electrical heater, installed in front of the heat exchanger in air direction, is heating-up the recirculating air. The air then passes a water bath; installed heating and cooling elements ensure a fast and exact temperature-conditioning of the water and an aerosol-free humidification and dehumidification. The humidity of the test space air depends on the water temperature. The re-developed, patented climatic system allows a high relative humidity even with a heat load. (for series and /10,.../15) An air-cooled refrigeration unit adapted to the refrigeration capacity required during climatic operation reduces the sound level and guarantees a favourable energy balance/ consumption, as the high cooling stage is out of operation. Besides, it reduces the operating hours for the main refrigeration cycle and thus prolong the service life of the whole unit. Page 15 of 20

thermometers Pt 100 as per DIN IEC 751. Dry and wet bulb sensors are arranged next to each other in the recirculating air flow.

16 Environmental Stress Screening Chambers (WKSE) 2.7 Psychrometric Humidity Measuring 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 recirculating air flow. Depending on the climate the material of the wet bulb sensor is humidified. The life time is considerably increased due to a selfcleaning mechanism! 2.8 Dew Point Extension from +4 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. Page 16 of 20

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.

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.

17 Environmental Stress Screening Chambers (WKSE) 2.9 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 must be ensured 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. Page 17 of 20

Environmental Stress Screening Chambers (WKSE) It is possible to control each test chamber extension via the ASCII-2-Dynamic and SimServe protocols.

18 Environmental Stress Screening Chambers (WKSE) 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). Page 18 of 20

1 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

19 Environmental Stress Screening Chambers (WKSE) 2.12 Additional Safety Devices 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. Page 19 of 20

20 Environmental Stress Screening Chambers (WKSE) 3 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 cabinet. 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. The climate test cabinets, SYSTEM WEISS, are standardly equipped with a lockable main switch according to VDE. 4 Technical Documentation / Operating Manual The technical documentation includes: 1 operating manual for chamber 1 operating manual 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 Page 20 of 20

Technical Description. Laboratory Climate Test Chamber. System Weiss. Mat. No.: Type WKL 34/40

Technical Description. Laboratory Climate Test Chamber. System Weiss. Mat. No.: Type WKL 34/40 Technical Description Laboratory Climate Test Chamber System Weiss Mat. No.:67592625 Type WKL 34/40 FACTS The test chambers types WTL/WKL with compact exterior dimensions were especially developed for