sewerin EX-TEC PM 4, Operating Instructions Manual

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3
1 General
1.4 General safety information
z
The EX-TEC PM 4 has been tested to ensure that it is explosion-
proof in accordance with European standards (CENELEC).
z
The functional safety of the EX-TEC PM 4 has been tested
in the LEL range, Warning (%LEL) application, for gas types
methane (CH
4
) and propane (C
3
H
8
).
z
Use only original SEWERIN accessories with the
EX-TEC PM 4
.
For
Flex handheld probe HG4 and Flex probe HG4, use
only SEWERIN-approved filters with activated carbon
.
Otherwise, the functional safety of the
EX-TEC PM 4
is not
guaranteed.
z
Always open the battery compartment of the EX-TEC PM 4 and
recharge the batteries outside the potentially explosive area.
z
Always use the test gases in well ventilated areas.
z
Always operate the pump device model of the
EX-TEC PM 4
with the pump switched on.
z
Always carry out a function control (see Section 5.1) after the
EX-TEC PM 4 has suffered an impact (for example, if dropped
accidentally). Readjust the zero point if necessary (see Sec -
tion 5.3).
z
The EX-TEC PM 4 complies with the limits of the EMC Direc -
tive. Always observe the information in the manuals of (mobile)
radio equipment when using the device close to (mobile) radio
equipment.
z
Use the EX-TEC PM 4 with the following gases only:
– Methane (CH
4
)
– Propane (C
3
H
8
)
– Butane (C
4
H
10
)
– Hexane (C
6
H
14
)
– Nonane (C
9
H
20
)
– Kerosene (JFUEL)
– Hydrogen (H
2
)
– Acetylene (C
2
H
2
)