Safety Regulations
MSA
ALTAIR 4X
GB
7
1.2
Liability Information
MSA accepts no liability in cases where the product has been used inappropriately
or not as intended. The selection and use of the product are the exclusive respon-
sibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect
to the product are voided, if it is not used, serviced or maintained in accordance with
the instructions in this manual.
1.3
Safety and Precautionary Measures to be Adopted
Check Function
Before each day’s use, check the function of the device (
chapter 3.6).
MSA recommends carrying out a routine inspection prior to each day’s use.
Perform a bump test
Bump test frequency is often stipulated by national or corporate regulations; how-
ever, bump testing before each day´s use is generally the accepted best safety
practice and is therefore MSA’s recommendation. The device must pass the bump
test. If it fails the test, perform a calibration before using the device.
Perform a bump test more frequently if the device is subjected to physical shock or
high levels of contaminants. Also, perform a bump test more frequently if the tested
atmosphere contains the following materials, which may desensitize the combusti-
ble gas sensor and reduce its readings:
- Organic silicones
- Silicates
- Lead-containing compounds
- Hydrogen sulphide exposures over 200 ppm or exposures over 50 ppm for
one minute.
Check minimum concentration of a combustible gas
The minimum concentration of a combustible gas in air that can ignite is defined as
the Lower Explosive Limit [LEL]]. A combustible gas reading of "XXX” indicates the
atmosphere is above 100 % LEL or 5.00 % vol CH
4
, and an explosion hazard ex-
ists. Move away from hazardous area immediately.
Attention!
The following safety instructions must be observed implicitly. Only in this
way can the safety and health of the individual operators, and the correct
functioning of the device, be guaranteed.
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