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Fluorescent UV lamps, similar in mechanical and electrical characteristics to those used for residential and commercial lighting, have been developed with specific spectral distributions. Tests using fluorescent lamps are useful for relative rank comparisons between materials under specific conditions, but the comparison to service lifetime performance or correlation to outdoor exposures may not be valid. The best use of the UV lamps is for general screening tests, such as checking for gross formulation errors with an artificially harsh exposure.
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vibration cabinets for horizontal and vertical vibration combined with various types of shakers. Very high rates of increase and decrease for the temperature.
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Vibration test systems
Temperature and Climatic Type VTV and VCV
Vötsch vibration test systems enable you to simulate dynamic processes, i.e. mechanical and thermal processes affecting components and assemblies.
Regardless of whether mechanical, hydraulic or electro-dynamical vibrators are required, we cooperate with all well-known national and international manufacturers of vibrators.
The standard range comprises of 36 different types of systems. Special equipment is available and can be customized as required (see special applications).
Test space volumes
600 l, 1200 l and 2200 l
Temperature range
-40 °C to +180 °C and -70 °C to +180 °C
Humidity range (VCV)
10 % to 95 % RH
Temperature rate of change
5 K/min, 10 K/min and 15 K/min (optional to 30 K/min)
Control System:
Controller Board S!MCON/32-NET with removable Colour touchpanel.
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Vibration test chambers for simultaneous testing of the influence of vibration, temperature and temperature changes as well as humidity, e.g. on components in the engine bay of vehicles. With a closed floor element these cabinets can be used as fully functional temperature testing cabinets (WT-V series) and, additionally, as climate test cabinets (WK-V series) as well as for ESS testing.
Advantages
- Powerful, homogeneous temperature and/or climate conditioning of the test chamber.
- Easily accessible maintenance elements ensure minimum service times.
- Precise adjustment of system height to accommodate standard shakers.
- Simple integration of all standard shakers. Networking of chamber control software and shaker control software possible
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optimized design of the refrigerating units as well as of respective vaporizer, compressor and air outputs.
individual electric and mechanic interfaces towards the specimen or the measuring system.
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PGC has been providing high quality walk-in chambers since the mid-1970's. These environmental chambers have applications in diverse disciplines such as pharmaceutical stability testing, TAPPI and ASTM testing, biological and biotechnological research, electronics, and many other applications.
Our many years of experience in designing, manufacturing and installing walk-in rooms enable us to provide the user with unparalleled expertise. PGC's staff will assist in planning your room to meet your specific needs.
PGC will provide sole-source responsibility for both room construction and its conditioning equipment. Using modular insulated panels having either a 32 Rvalue (four inch) or a 40 R-value (five inch), enables PGC to deliver maximum efficiencies and uniformities.
FEATURES:
- RH uniformity to ±0.5%
- Temperature uniformity to ±0.5°C
- Multi-range rooms from -30°C to +60°C
- Humidity ranges from 10% to 90% RH
- Modular insulated panels
- Rooms factory-tested prior to
- shipment
BENEFITS:
- Unsurpassed humidity performance
- Superb temperature stability
- Flexibility of operation
- Increased measurement options
- Ease of assembly
- Assurance of proper operation
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Temperature Walk-In Test Chambers
Series VTZ
Standardized temperature test chambers with test space volumes from 8 to 22 m³ and different performance ranges of -60 °C to +150 °C for environmental tests of large or numerous small specimens.
Accelerated and still reproducible tests as well as temperature tests for the quality control of manufacturing processes are possible.
Control System:
Controller Board S!MCON/32-NET with installed Colour touchpanel.
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Walk In Temperature and Climatic Chambers
Our Walk In Chambers are a range of temperature and climate test chambers especially developed for large test specimens that cannot normally be tested in a standard-sized test chamber.
Attributes
Best stability of wall elements, non-slip floor, lighted test space
Heating to prevent formation of condensate at the door frame
Uniform temperature conditioning of test space
Easy access to machine unit for maintenance purposes
Global and competent after-sales service
Variable size and performance for individual application
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Walk In Corrosion Test Chamber
In this chamber test specimens are exposed to salt spray or condensed water. The system comprises of three major as-semblies: test chamber, brine solution storage tank and switch cabinet.
The brine solution storage tank can hold 600 or 1000 litres. Thus, long term tests lasting for several days are feasible. Tests performed under these conditions provide valuable knowledge of the corrosion behaviour of materials.
Main Advantages
- Corrosion-resistant interior surfaces made of GFK, shock and scratchresistant
- Exterior surface made of aluminium, white coated
- Homogenous temperature-conditioning of test space
- Service-friendly thanks to easily accessible functional units
- Self-supporting hard foam elements that can be assembled on site
- Modular design allows for different chamber sizes
- High floor load of test space
- Sprayed brine volume can be set and measured from outside
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Range of enclosure of laboratory
Temperature and climatic
Type VTL and VCL
Of compact construction, powerful, especially adapted for a use in laboratory when the place is limited.
Volumes of work
34 liters and 100 liters
Beach of work in temperature
+10°C with +150°C
-40°C with +150°C
-60°C with +150°C
Beach of relative humidity
10 to 98% hr
For more information to consult us
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Chalmbres of climatic tests for constant climates, range VC 00.
Volumes of tests 190,335,600,990 and 1540 liters
Operating range in temperature with regulation of the relative humidity
+10°C with +90°C
Beach of work in relative humidity
10% to 98% hr
2talonnage with values ICH
25°C/65%hr
40°C/75%hr
Beach of work in temperature without broader relative moisture.
For more information to consult us.
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Rooms of tests in temperature standardized with volumes of 8 m ³ to 22 m ³ and various ranges of temperature of 60°C with +150°C for the tests of environment the large ones or many small specimens.
Accelerated tests and reproducible as well as of the tests in temperature for the quality control in process of manufacture are possible.
Control system:
Control board with touchscreen touchpanel.
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The equipment adheres to the principle technical combination of function, ergonomics and the design brings to the user a system of powerful test on all the points. That applies to a large variety of technical details and practices as well as for the price ratio/performance.
The series is characterized by its respect of the environment; its corrosion resistance, its consumption of reduced energy and its material construction almost all which can be recycled.
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The standard procedures of numerous automotive manufacturers for simulating their products' environmental conditions make high demands on the chamber technology. They require a high degree of flexibility especially of
Special advantages offers the SPS control system which assures that process parameters are reached exactly and rapidly and that they are strictly maintained. The touchpad's clearly structured menu navigation makes it easy and secure to handle the test chamber. Process data can be visualised, supervised and documented with our software called VisiCORR®. For this purpose, the standard chamber is equipped with a Modbus RTU and an Ethernet TDP/IP interface.
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SAL Table Top models 400 L / 1000 L
The unique 400 L salt spray cabinet can be placed either on an existing laboratory table or on the original VLM support. This offers the most convenient and space saving configuration of the cabinet, test solution reservoir and water purification plant. Only compressed air has to supplied. If there is no central plant you will find very low-noise compressors among the accessories.
Front door opening cabinets allow most convenient loading of the chamber particularly with hanging specimen. Moreover the cleaning of the chamber is easy. Due to the high level of the drain port there will be enough downward slope to the commonly installed siphons.
The side walls of the chamber are made of polyethylene with milled holes for the specimen support. The water trough, the back wall and the inner roof are made of stainless steel coated with Halar® (ECTFE). This unique design allows a quick transfer of the heat into the chamber. Together with the advanced temperature control system best conditions for the precise tempering of the chamber are provided.
For that reason SAL cabinets can also be applied to conducting of high humidity tests after the extension by the working system „CON“.
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The standard procedures of numerous automotive manufacturers for simulating their products' environmental conditions make high demands on the chamber technology. They require a high degree of flexibility especially of laboratory and engineering service providers and automotive suppliers.
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Liebisch desk type units are supplied with 300 litre test chamber volume. They are used for condensation water tests with or without pollution gas (e.g. DIN EN ISO 6270-2, DIN 50018). Options are available to meet customer test requirements.
Constanzo®
These units are available with or without automatic ventilation. With the automatic ventilation the user needn’t open the test chamber door during ventilation periods. Ambient air passes through the test chamber. The test chamber temperature range is max. 50°C, the increased operating temperature system (EA) allows a temperature of up to 60°C
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Corrosion Test Apparatus for Alternating Tests, Model 608
For testing with cycles of changing corrosive effects in accordance with VDA 621-415. Basic concept, design details and dimensions as for Model 606. Microcomputer to control test cycle (neutral salt spray DIN 50 021, alternating condensation water climate AHT DIN EN ISO 6270-2, ambient temperature DIN 50 014).
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Cyclic corrosion test Cabinet 1000 litres or 2000 litres with external deposit, all made of INOX AISI 304, Corrosion chambers CCONS 400 litres, CCONS 1000 litres and CCONS 2000 litres
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VLM offers you a comprehensive product range of bench top cabinets or chest models which covers a wide application and service spectrum going from the classical VDA test (VDA 621-415) or VW PV 1210 with conditionened ambient air to very exigent test procudures according to the factory standards of other automotive manufacturers and suppliers (see "MF" multifunction series).
We are pleased to advise you in order to compile the chamber configuration which fits exactly to your needs. Due to their unique construction and material composition, VLM corrosion testing chambers provide the best conditions to realise a high reproducibility of fully automatic cyclic corrosion tests
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Liebisch cabinet type units are available in 400, 1000 and 2000 litre test chamber sizes.
Constacon® SC
This series are manually operated cabinets of type M-SC for performing of condensation water tests such as DIN EN ISO 6270-2 (without pollution gas).
Constasal® SC
This series are manually operated cabinets of type M-SC for performing of salt spray tests such as DIN EN ISO 9227.
Constamatic® SC
This series are programmable and operate the A-SC range of cabinets. The unit’s easy to use programmer is mount in the control panel. All functions are displayed on a multi-line menu-driven display. The units can be equipped with systems for salt spray or built as combination testing units.
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Humidity Cabinet HYGROTHERM 519 FA/SA
Fully automatic corrosion test apparatus for standardised tests in condensation water climate with and without SOc addition, using a programmable logic control (PLC) for the automatic sequence, i.e. control of heating, acid feeding and draining, filling and draining of the bottom trough water tank as well as evacuation and replacement of air (manual operation also possible). Test chamber volume 300 l. Model 519 SA equipped with a semi-automatic control system, i. e. acid draining, evacuation and replacement of air as well as the control of the heating system are executed automatically.
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VLM corrosion test cabinets provide best conditions for the conduction of high humidity tests due to its unique design. The bottom, rear wall and roof are made of stainless steel coated with Halar® (ECTFE), a fluorine polymer used in chemical apparatus engineering. Hence there is a quick transfer of the heat from the heaters below the bottom into the water bath. So the water evaporates and condensates very evenly. The best reproducibility of the climate is achieved by the patented CTD-System
VLM CON cabinets for alternating water condensation tests are equipped with the working system “AIR”. That means that ambient air is introduced into the chamber by a fan. The air is evenly distributed to the chamber by a perforated pipe in order to dry the specimen evenly.
We offer a variety of table top models with a chamber capacity of 300 L and 400 L as well as 1000 L cabinets for conducting of tests requiring:
Condensation atmosphere with constant humidity
persuant to ISO 6270-2 (CH)
Condensation climate with alternating humidity and air temperature persuant to ISO 6270-2 (AHT)
Condensation climate with alternating air temperature
persuant to ISO 6270-2 (AT)
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Associated Environmental Systems supplies Temperature/Humidity Chambers to program controlled conditions of combined temperature and relative humidity.
All chamber components offer maximum resistance to the corrosive effects of moisture combined with extreme conditions. Consult the AES design engineering services for special temperature and humidity conditions.
BHD-500 and BHD-200 Series
The BHD-500 Series use a single-stage mechanical refrigeration system that can produce dry bulb temperatures down to 35°F/-37°C.
The BHD-200 Series produces dry-bulb temperatures down to -100°F/-73°C.
* Non-corrosive, stainless steel finned heaters are baffled to eliminate direct radiation to the test items at high temperatures of up to +350°F/+177°C.
* Chamber liners are hermetically sealed and made of heliarc welded stainless steel.
LH Series
* Self-contained systems use a two-channel microprocessor digital controller.
* Easy to operate.
* Standard units are available from stock in three (3) sizes: 1.5 cubic feet, 5.8 cubic feet, and 10 cubic feet.
* Temperature range is 0°C to +94°C with an optional temperature range of -20°C to +94°C.
* Humidity range is 20% to 98% 2 RH.
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400 L Cabinet CON 400-S A-KES to conduct fully automatic Kesternichtests persuant to ISO 6988
This cabinet is equipped with the working system water condensation „CON“ with CWC System and the working system „AIR“ and provides best climate conditions for conducting water condensation and Kesternichtests. Please note that the water is only heated up by the heaters below the water bath. As we do not apply any circulating pump the surface of the water remains quiet. This is essential concerning the absorption of the SO2 comparable to the climate in manually operated Kesternich chambers.
The SO2 is measured by an advanced massflowmeter and monitored by the PLC which controls the complete test procedure.
The CON 400-S AKES cabinet meets high requirements of safety and convenience. If necessary an extension by installing the working system “SAL” salt spray is possible, thus fully automatic cycling corrosion tests can be carried out.
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Light Exposure Test Apparatus SOLARBOX 522/522 RH
Compact instrument to determine the resistance to exposure to sun light using a Xenon high pressure lamp (1.5 kW or 2.5 kW). Adjustable level of irradiance, uniform illumination by special mirror system, exchangeable filters for variable UV fraction.
Four versions available:
- SOLARBOX 522/1500, 522/3000
- SOLARBOX 522/1500e, 522/3000e
(each without and with microprocessor controls)
Light Exposure Test Apparatus
- SOLARBOX 522/1500e RH
- SOLARBOX 522/3000e RH
are extended versions of Model 522/1500e and 522/3000e with additional control/monitoring of relative humidity in the test chamber during the test.
Optional:
Programmable flooding system for periodic wetting of specimens.
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Corrosion Test Apparatus for Salt Spray Tests, Model 606
For tests in accordance with all salt spray standards. Corrosion resisting test chamber with circular dome or rectangular chamber, of plastic construction. Special dimensions upon request. Operator friendly controls for up to 2 test chambers with volumes of 400 l, 1000 l and /or 2000 l.
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Alternatively to our salt spray tests bench top cabinets and HD-chest models we offer the most favourable "ECONOMY" chests with 600L and 1000 L chamber capacity. These models are especially designed pursuant to the requirements of salt spray tests according to ASTM B117, ASTM B368, BS 3900 ECCA T8 JIS 7253 DIN 50021 SS, ESS,CASS resp. ISO 9227.
The side- and front walls are made from polypropylene. Following the VLM prinicles the EC-chest model are as well furnished with a ECTFE coated stainless steel bottom. Compared to conventinal chests the EC-chambers show a considerably better heat conductivity. For this reason the chamber will be heated up evenly and rapidly. Moreover due to this benefit, EC-chests can also be used for high humidity tests with constant water condensation pursuant to ISO 6270-2 CH.
The EC-cabinets are furnished with a transparent cover with turnable locks at both sides with a "dry" seal made of silicon foam. Hence, there is not only a convenient cleaning or loading of the chamber with the specimens. More important: As the chamber is hermetically closed during the tests there is no risk of contamination of the lab by escaping salt mist. An air purge is a serial feature and has to be activated before the cover is opened.
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Corrosive atmosphere chambers subject test items to corrosion without introducing other contaminants into the test area.
Associated Environmental Systems' salt spray chambers are entirely self-contained. The basic chamber conforms to military specifications, including MIL-STD-810, and is also used for many commercial and ASTM specifications.
The MX-9200 corrosive atmosphere chamber:
* Has a transparent Lucite test area that is impervious to corrosion.
* Provides continuous direct visual observation of the test item.
* Contains thermostats and metallic items made of Monel to avoid transference and minimize corrosion.
* Provides lucite rods to hang or support items within the test area.
* Performscontinuous unattended tests for up to 72 hours. This period may be extended by adding an external storage tank, a tower level control and a salt solution reservoir level control to automatically refill the system.
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Liebisch chest type units are available in 400, 1000 and 2500 litre test chamber volume design.
Constacon® TR
This series are manually operated chests of type M-TR for performing of condensation water tests such as DIN EN ISO 6270-2 (without pollution gas).
Constasal® TR
This series are manually operated chests of type M- TR to perform salt spray tests such as DIN EN ISO 9227 without automatic ventilation.
Constatwin® TR
This series are manually operated chests of type M- TR to perform salt spray tests or condensation water tests. They are called “manually operated combination testers”.
Constamatic® TR
This series are programmable and operate the A-TR range of chests. The unit’s easy to use programmer is mounted in the control panel. All functions are displayed on a multi-line menu-driven display. The units can be equipped with systems for salt spray or built as combination testing unit.
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