sewerin EX-TEC PM 4 - Page 85

76
Appendix
Butane C
4
H
10
(100 % LEL = 1.40 % vol.)
Area of
application
Test gas Tolerances / fresh
air zero point
Tolerances / test
gas indication
accuracy
ppm range Replacement test
gas 1.0 % vol. C
3
H
8
in synth. air (dis-
play setpoint when
adding replacement
gas: 0.88 % vol.)
0 ppm 0.8 to 1.4 % vol.
% LEL range
-0.05 to +0.05 % vol.
(-3 to +3 % LEL)
0.80 to 0.98 % vol.
(57 to 69 % LEL)
% vol. range
Adjustment not
possible
– –
Hexane C
6
H
14
(100 % LEL = 1.00 % vol.)
Area of
application
Test gas Tolerances / fresh
air zero point
Tolerances / test
gas indication
accuracy
ppm range Replacement test
gas 1.0 % vol. C
3
H
8
in synth. air (display
setpoint when
adding replacement
gas: 0.72 % vol.)
0 ppm 0.5 to 0.7 % vol.
% LEL range
-0.03 to +0.03 % vol.
(-3 to +3 % LEL)
0.64 to 0.78 % vol.
(65 to 79 % LEL)
% vol. range
Adjustment not
possible
– –
Nonane C
9
H
20
(100 % LEL = 0.70 % vol.)
Area of
application
Test gas Tolerances / fresh
air zero point
Tolerances / test
gas indication
accuracy
ppm range Replacement test
gas 0.30 % vol.
C
3
H
8
in synth. air
(display setpoint
when adding
replacement gas:
0.21 % vol.)
0 ppm 0.14 to 0.28 % vol.
% LEL range
-0.05 to +0.05 % vol.
(-3 to +3 % LEL)
0.14 to 0.28 % vol.
(20 to 40 % LEL)
% vol. range
Adjustment not
possible
– –