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MK LIT (E5) 01/2021 page 80/172
14. Behavior when/after triggering of the CO
2
fire suppression device
When the chamber door is closed and the extraction system is connected, triggering the CO
2
fire suppres-
sion device does not endanger persons. Nevertheless, when the buzzer sounds and the red indicator light
flashes, persons in the danger zone as defined by the operator must vacate the area and move to a safe
place.
In order to avoid hazards to health, the operator must compile a risk assessment, which must define
measures for safety and health protection. These measures could include structural, technical, or organi-
zational measures.
Observe the relevant regulations, in particular DGUV-I 205-026 in Germany.
Record triggering of the CO
2
fire suppression device in the logbook.
To open the chamber, proceed as follows:
1. Ensure that there are no hazardous gases in the test space. These include, for example, CO
2
and N
2
at elevated concentrations as well as H
2
, O
2
, and other gases released from batteries. Ensure that
ventilation measures are effective before opening the chamber. Take appropriate precautions to avoid
inhalation of harmful gases and sparking.
2. Switch the main switch of the gas detection system off.
3. Turn off the battery test chamber and disconnect the power plug.
4. Ensure that the test object in the chamber is disconnected from the power supply.
5. Only then can the battery test chamber be opened.
Take suitable protective measures when removing the test material.
WARNING
Danger of intoxication through contamination of the chamber with toxic, corrosive
or chemically aggressive material. Danger of chemical burns due to contact with
skin, inhalation, or contact with the eyes.
Damages to health. Skin and eye damage. Environmental damage.
Take appropriate precautions when removing toxic, corrosive or chemically aggressive
material.
Wear protective gloves and goggles.
Avoid skin contact with the test material and the interior of the chamber.
All cells in the cabinet could be damaged after a EUCAR hazard level 4 to 6 event and must be replaced
before starting a new test
If the CO
2
fire suppression device has been triggered, a check must be carried out in each case to deter-
mine, depending on the fire or chamber damage, whether the chamber can still be used afterwards. For
continued use, note the information in chap. 7.9.2 on handling the components of the CO
2
fire suppression
device and the information in chap. 27.2 on cleaning the chamber.
15. Temperature safety devices
15.1 Over temperature protective device (class 1)
The chamber is equipped with an internal temperature safety device, class 1 acc. to DIN 12880:2007. It
serves to protect the chamber and prevents dangerous conditions caused by major defects.
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