The useful life of your product and its components could be affected by solicitations received during the packaging phase, transportation and depot operations in general which could determine a failure caused by arising defects not visible or predictable in the production phase. Moreover, the environment in which the products «operate» is affected by sudden temperature variations, which often generate quality problems.
ACS, thanks to its wide experience, has developed a huge range of products to test all type of specimen and to detect unpredictable future defects that may arise after years of operation. ACS Compact chambers provide high performances in limited space. Small footprint, easy installation, low power consumption, low noise level and full basic features including the inspection windows, makes this chamber the ideal choice. A compact unit easy to be installed in any R&D Department capable of testing small components and products.
The product line has 4 different models, depending on the volume chosen, starting with 16 l model up to 200 l model, to fit each customer needs.
Max. load of the shelf 15 kg approx. (equally distributed - only 60 l)
Max. load of the shelf 50 kg approx. (equally distributed - only 110 l, 200 l)
The internal test space is made of stainless steel (material no. 1.4301, equivalent of AISI 304)
All the seams are TIG welded and vapour tight
Internal rails for mounting the grid shelves by special clamps in the requested height
air treatment system
Realized into an air treatment duct positioned on the end wall. The following elements are included:
dehumidification system (only climatic version)
thermoregulation air circulation fan
temperature and humidity probes
Thermo-regulated air flows into the air treatment, passing through the above mentioned elements before entering the test chamber.
Mechanical cooling based on single stage system (-40° C) or cascade systems (–70° C). The cooling system is realized with semi-hermetic alternative type compressors with an advanced and high quality design. The main body is made of special cast iron; the cylinders and light metal alloy pistons are easy to dismount. The cooling system is complete with an automatic injection type protection system for the compressor. This protects the compressors when they are cooling down from high temperatures. This system allows a self-regulating cooling of the compressors, in order to avoid high temperature (no damages to motor winding).
The chamber is heated by means of electrical heaters, protected by safe thermostats that disconnect overall chamber main power components (such as compressors, fans and heaters) in case of accidental over-temperature.
humidification and dehumidification (climatic model)
Direct humidification occurs through an electrical vapour humidifier with an orifice arranged in the airflow after the recirculating air fan. This ensures aerosol free humidification.
The humidifier is controlled by a dedicated algorithm for better reliability. The chamber is equipped with a water storage tank (about 18 l capacity) and a water connection on the back of the chamber for automatic refilling. There are two ways to ensure the water supply needed for any kind of climatic tests:
Manually refilling the tank with demineralised water
Connecting the chamber to demineralised network
In order to reduce water consumption, water recycling can be activated through a button on the control panel (only possible when the specimen does not contaminate the water during the test). Dehumidification is performed by the condensation cooler (dew point cooler) directly connected to the refrigeration circuit. This principle permits high stability of parameters in conjunction with energy-efficient dehumidification.
(only 110 l and 200 l climatic models) Temperature Measurement with Pt100 thermal probe Class A, max precision 0,3 K. Relative humidity measurement with capacitive probe. The regulation of the humidity is performed by the PLC programmer. This allows extremely precise control of the programmed values. Relative humidity range: 10% to 95%, within the temperature range [+10° C, +95° C] Dew point range:
AREA 1, +4° C to +93° C for continuous testing in the temperature range [+20° C,+95° C] AREA 2, +4° C to +93° C for a short time in the temperature range [+10° C; +20° C] AREA 3, down to -3° C for limited periods based on starting conditions and foreseen testing time
The values refer to the basic version at ambient temperature of +22° C, temperature measuring in the air inlet
control system and user interface
The Compact Test Chambers are equipped with the powerful KeyKratos Plus touchscreen control system, based on PID control through PLC.
hardware & software
5,7" touchscreen (on 60, 110 and 200 l), 3,5" touchscreen (on 16 l); 65.536 colors, TFT technology 3 types of memory support for storing cycles, recordings, and alarms: Compact Flash, Pendrive (USB key on 60, 110 and 200 l models)
Touch menu with related pop up screens where necessary
Memory capacity to 1000 cycles with 350 segments
User friendly data input during editing, check and administration of cycle
Delayed start of the tests (hh:mm:ss)
Real time recording of temperature and humidity versus time (LOG on SD, no for 16 l)
USB interface on front panel for pendrive or printer (no for 16 – 60 l)
Data saved in CSV format (Comma Separated Value) for easy export to Excel® from Secure Digital to Pendrive via USB interface located on front panel, program files are easily convertible into graphic format (no for 16 – 60 l)
A trend chart for recorded variables available with a scale from -100/+200.
Four traces: temperature set point, actual temperature, humidity set point and actual humidity (the last two only for climatic version)
Messages on scheduled maintenance activities
Synoptic graphs for the chamber, low and high stage refrigeration.
System available in 6 languages: Italian, English, German, Spanish, French, Dutch
PC Winkratos software:
WINKRATOS® S/W package (running under Windows XP, Vista, 7) offers a powerful and flexible control and management system. It allows the user to:
create test programs
refer to and modify previously created test programs
delete all test programs that are no longer necessary
print any test program in text format
technical details - main features
Connection to PLC through Ethernet, up to 16 chamber can be connected to the same WK
Multiple access password levels
technical details - graphic functions
Fully-configurable layout of acquired measured charts
Display of several charts on the monitor
Several colours to be chosen at one's choice for the display of different parameters' curves
Enable/disable of chart display and grids
Real-time update of acquired measured charts
Real-time measurement of test parameters by means of graphic cursors
Max. flexibility for cycles to be set
Storage of occurred events such as alarms, commands, etc
WINKRATOS® may be installed on PCs supplied by ACS or belonging to the customer and may be connected to any COMPACT chamber.