ACS - Environmental Test Chambers Angelantoni Group

Battery Test Chambers

In recent years the proliferation of portable devices and the «start&stop» system introduction in the automotive field led to increase R&D activity on this product range, enlarging the batteries offer to introduce in the market best performing products.
Tests based upon charge and discharge cycles are a key activity in laboratories involved in battery testing. The instruments used for such tests often subject batteries to demanding and lengthy test protocols and can normally be interfaced with various devices.
ACS climatic chambers play a primary role offering the possibility to conduct tests in controlled temperature and humidity conditions similar to those a battery may encounter over the course of its operating lifetime.
The Battery Test range has been optimized in accordance with the hazard levels defined by the EUCAR, with each hazard level associated with a series of accessories.
The end user should be familiar with the type of test to be performed and is responsible for selecting the appropriate hazard level.
Once the hazard level is established based on the EUCAR table, the equipment should be fitted with all the devices envisaged for the specific level and those below it to ensure full protection.
Moreover, in the case of the maximum hazard level (Level 7 – Explosion), it is necessary to make a specific estimation, since the proposed devices might not be sufficient for guaranteeing the safety level required.

EUCAR Hazard Levels and related accessories:

Hazard LevelDescriptionCriteria for Severity Classification & Effects
0 No Effect No effect. No loss of functionality
1 Reversible Loss of Function No defect; no leakage; no venting, fire, or flame; no rupture; no explosion; no exothermic reaction or thermal runaway. Temporary loss of battery functionally. Resetting of protective device needed.
2 Irreversible defect/damage No leakage; no venting, fire, or flame; no rupture; no explosion; no exothermic reaction or thermal runaway. RESS irreversibly damage. Repair needed.
3 Leakage Δ mass < 50% No venting, fire, or flame; no rupture; no explosion. Weight loss < 50% of eleetrolyte weight. Light smoke (electrolyte=solvent+salt).
4 Leakage Δ mass ≥ 50% No fire or flame; no rupture; no explosion. Weight loss ≥ 50% of electrolyte weight. Heavy smoke (electrolyte=solvent+salt).
5 Fire or Flame No rupture; no explosion (i.e. no flying parts)
6 Rupture No explosion. RESS could disintegrate but slowly without flying parts of high thermal or kinetic energy.
7 Explosion Explosion (i.e. disintegration of the RESS with externalyy damaging thermal & kinetic forces). Exposure to toxic substances in excess of OSHA limits.

Table 1: Severity Levels (Adopted and modified by EUCAR)

Battery Test Chamber Product Range

The models indicated in the below table can be provided as Battery Test Chamber.

BASIC VERSIONE VERSIONES VERSIONflower® VERSIONESS VERSION
CLIMATIC AND THERMOSTATIC MODEL CLIMATIC MODEL CLIMATIC AND THERMOSTATIC MODEL CLIMATIC MODEL CLIMATIC AND THERMOSTATIC MODEL
Field T -40/+180°C Field T -20/+180°C Field T -40/+180°C Field T -40/+180°C Field T -70/+180°C
DM340 (T)
DM600 (T)
DM1200 (T)
DM1600 (T)
DM340 E
DM600 E
DM1200 E
DM1600 E
DM340 (T) ES
DM600 (T) ES
DM1200 (T) ES
FM340
FM600
FM1200
DM 250 C (T) ESS
DM 500 C (T) ESS
DM 1000 C (T) ESS
DM 1400 C (T) ESS
Field T -70/+180°C   Field T -70/+180°C Field T -70/+180°C  
DM340 C (T)
DM600 C (T)
DM1200 C (T)
DM1600 C (T)
  DM340 C (T) ES
DM600 C (T) ES
DM1200 C (T) ES
FM340 C
FM600 C
FM1200 C
 

BATTERY TEST CHAMBER DATASHEET

Please click on the following link to open the interested datasheet.

DMDM EDM ESDM ESS FM

general features

Control and management system and interfaces
Controlled by PLC and Advanced HMI

Remote access
There is a wide range of possibilities thanks to the built-in MyKratos™ and MyAngel24™; multichamber control also available upon request

Electromagnetic closing system
Ensures the security of environmental tests

Air treatment system
Ensures a precise control of the climatic parameters inside the chamber with minimal thermal inertia; an axial fan allows rapid temperature variations of both air and specimen.

Humidification system (only climatic version)
The humidifier with a self-contained heater and dedicated controlling S/W offers two great advantages:
- it does not require distilled or demineralised water to operate properly

- it uses ‘dry’ vapour in order to avoid condensation on the specimens and to reproduce real environmental conditions

Complete basic configuration

  • MyKratos™ and MyAngel24™: top of  the line HMI for remote control
  • Inspection window: multiple-crystal, with double heated transparent film, 550 h X 450 mm size
  • Internal lighting
  • Self feeding system (tap water through chamber embedded softener)
  • Wheels and feet
  • Electromagnetic closing system
  • Silicone portholes: 80 mm (left side) and 150 mm diameter (right side) fitted with silicone cap. They allow internal-external electrical, mechanical or hydraulic connections.
  • Digital min./max. thermostat: with independent probe
  • No. 1 internal grid shelf
  • Auxiliary contacts (specimens, alarms)

options

  • Additional portholes: 80 and 150 mm
  • Water condenser: for the chambers which are normally equipped with air condenser
  • UV lamp: for ageing tests on painted surfaces, plastic materials, rubber, etc
  • Handling port hole: Ø125 mm, positioned on the door near the inspection window. It allows handling specimens inside the chamber (available for models from 500 litres up)
  • Internal shelves: AISI 304 stainless steel, adjustable in height, grid shelves to be added to the one supplied
  • Reinforced floor: max 500 kg distributed load
  • Notch 50x70mm
  • Set of no. 4 analogic inputs 0÷10 V for user’s data acquisition (no. 1 set max)
  • Set of no. 4 PT100 inputs (no. 1 set max)
  • Set of no. 4 PT100
  • Set of no. 8 auxiliary contacts (no. 1 set max)
  • No break power unit for PLC
  • Compressed air dehumidification kit
  • Capacitive probe: RH Controlling and monitoring (activated by control system)
  • Temperature and Humidity (for climatic chambers) analogic retransmission
  • Temperature extension to +200° C
  • Air fan motor speed adjustment
  • Specimen switching off in case of chamber alarm
  • Air flow booster
  • Tablet Samsung or compatible
  • MyKratosTM Multichamber: software, installed on a PC, for monitoring and control multiple chambers (to be supplied upon request)

 

ACCESSORIES FOR BATTERY TEST:

Optical/acoustic tower light alarm and 4 supplementary PT100 sensors:
The tower light has 3 signal levels (white, green, and red) to quickly alert the operator of any abnormal conditions. The 4 supplementary sensors may be used to monitor the temperature of the specimen in the chamber and generate an alarm if dangerous overheating occurs.

GN2 or compressed air purge system:
When connected to a nitrogen gas system, this system makes it possible to create inert conditions in the test chamber. It can be coupled with an oxygen sensor to improve the reliability of the device.
If the system is connected to a compressed air system, it will purge the air and provide a constant exchange of air inside the test chamber.

Sampling system for monitoring:
Cooling unit, on the top of the chamber, to dehumidify the air flow extracted from the internal chamber volume before the inlet to the sensors.

Oxygen sensor, H2 sensor, CO sensor:
Monitors the gases in the chamber in all operating conditions envisaged in the technical specifications.

Overpressure valve:
This valve is positioned on the top of the chamber and is designed to protect the chamber from any gradual release of gas from the specimen. The system is not designed to compensate for internal overpressures of an explosive nature. This accessory comes with 2 additional mechanical fasteners to keep the door closed.
The device must be properly connected to the outside in order to avoid contamination of the test area. Flange connection DN500 according to EN 1092-1.

Fire extinguishing system:
The system is equipped with a fire extinguishing control unit, an alarm panel, an emergency button and a system with a CO2 cylinder. The fire detection system, provided with its own power supply, activates the CO2 in the chamber. The CO2 bottle is not included.

HAZARD Level and Related Accessories
The range of accessories has been optimized in accordance with the hazard levels defined by the EUCAR, with each hazard level associated with a series of accessories.
The end user should be familiar with the type of test to be performed and is responsible for selecting the appropriate hazard level.
Once the hazard level is established based on the EUCAR table, the equipment should be fitted with all the devices envisaged for the specific level and those below it to ensure full protection.
Moreover, in the case of the maximum hazard level (Level 7 – Explosion), it is necessary to make a specific estimation, since the proposed devices might not be sufficient for guaranteeing the safety level required.
 

Hazard LevelACCESSORY Description
0...2 OPTICAL/ACOUSTIC ALARM + 4 SUPPLEMENTARY PT100 SENSORS -- Chamber Height +350mm

 

3...4

SAMPLING SYSTEM FOR MONITORING 
COMPRESSED AIR OR GN2 WASHING WITH FLOW METER 
OXYGEN MONITORING SENSOR -- Dewpoint reduction up to +75°C, 5°C increase of Min. Temp., chamber H +300mm
H2 MONITORING SENSOR -- Dewpoint reduction up to +75°C, 5°C increase of Min. Temp., chamber H +300mm
CO MONITORING SENSOR -- Dewpoint reduction up to +75°C, 5°C increase of Min. Temp., chamber H +300mm
OVERPRESSURE VALVE -- Chamber height  +250 mm, Dewpoint reduction+4° C/+90° C, Minimum Temp. increased +5° C
5...6

COMPLETE FLAME EXTINGUISHING SYSTEM ≤340 L (Hazard Level 5...6) Dewpoint reduction up to +75°C, 5°C increase of Min. Temp., chamber W +200mm (empty CO2 bottle)
COMPLETE FLAME EXTINGUISHING SYSTEM >340 L (Hazard Level 5...6) Dewpoint reduction up to +75°C, 5°C increase of Min. Temp., chamber W +300mm (empty C02 bottle)

chamber floor loading and specification details

  • Max. floor load 100 kg/m² approx. (equally distributed)
  • Max. load of the shelf 50 kg approx. (equally distributed)
  • Internal test space is made of stainless steel (material 1.4301, equivalent of AISI 304)
  • All seams are TIG welded and vapour tight

air treatment system

System includes the following components:

  • Cooling evaporator
  • Heating system
  • Dehumidification system (only climatic version)
  • Thermoregulation air circulation fan
  • Temperature and humidity probe

cooling

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 including an automatic injection-type protection system. This protects the compressors when they are cooling down from high temperatures.

heating

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 models)

Direct humidification occurs through an electrical vapour humidifier.
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 three ways to ensure the water supply needed for any kind of climatic tests:

  • Connecting the chamber to normal tap water network by means of suitable water connection
  • 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.

humidity control

Temperature Measurement with Pt100 thermal probe Class A, max precision 0,3K.
Relative humidity measurement with Assmann psychrometric system complete with Pt100 thermal probes.
Relative Humidity range from 10% to 98% within the temperature range [+10°C; +95°C].

Dew Point range:

  • AREA 1, from +4°C to +94°C for continuous tests
  • AREA 2, 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, with temperature and humidity measurement made in the air inlet.

control system and user interface

The chamber is equipped with a PLC (Programmable Logic Controller) for managing all the chamber’s functions and safety interlocks. The HMI system consists of an on-board panel (Keykratos Evo) and a remote control (MyKratos™ including MyAngel24™) connected to the chamber. 

On-Board Panel (Keykratos Evo) consists of 3.5 inch Analog Touch Panel 65,536 colours with a touch menu with related pop up screens, allowing the following activities: main chamber's parameter setup, manual control, possbility to start the last stored profile, visualization of eventual alarm notifications. 

MYKRATOS™

MyKratos™ control software makes it possible to manage, monitor and assist the chamber anywhere, at any time, in multiple ways (Wi-Fi, Ethernet, mobile network) via mobile and desktop devices. The chamber wireless (Wi-Fi) connection permits operation using tablets and smartphones (iOS 8 or Android 4.2.1 compatible). The operator interface can also be remotely accessed through a chamber connection to the client’s LAN or via mobile network (on activation of SIM card data). It includes the MyAngel24™ remote-assistance system.

MyAngel24™

MyAngel24™ is an online diagnostic and remote servicing system included in the chamber basic configuration, activation is possible on Customer demand. Once activated, Angelantoni Server acquires data coming from the chamber, allowing ACS Service Staff to grant a remote assistance 24h.
ACS service staff can identify the problem and if possible, solve it remotely, or at least identify parts that may need to be replaced and check their stock availability in order to schedule an utmost efficient on-site intervention.

Control System - main features

 

TECHNICAL FUNCTIONS

  • Visualization and graphical analysis of measures and recordings
  • Synoptic graphs of the entire system
  • Multilanguage support
  • High configurability of chamber parameters
  • Unlimited possibilities of measures recording
  • Program and Manual mode of chamber operation
  • Delayed start of a program
  • Automatic notifications of event and alarms
  • Ability to send email notification to various recipients via customer's LAN connection

GRAFIC FUNCTIONS

  • Live data update of measures on the charts
  • Graphic charts or numeric table representation views on the monitor
  • Graphic cursor for in-chart data measurements and evaluations
  • Calculation of Measure Slopes and report generation
  • Enable/disable of chart display
  • Zoom in, zoom out and scroll functions
  • Export function to convert the MyKratos™ log file into ASCII format (usable in Excel or other applications)

 

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