MSA Ultima X Series User Manual

Technical DataMSA
ULTIMA X
®
Series
GB
63
ULTIMA XIR - Relative Response to 50 % LEL
The ULTIMA XIR response to 50 % LEL of the measuring gas, when configured to
linearisation curve number 2 [Propane] and calibrated in clean air and 50 % LEL
Propane, is shown below for various flammable gases and vapours.
When using relative response factors for gas calibration, deviations of up to ±20 %
of the true measuring gas concentration can be expected.
Measuring gas
100 % LEL in
Vol%
Linearisation
curve
Reference Gas
Concentration
[Propane]
Relative
response
factor
Toluene 1.1 Vol% (8) Ethylene 0.25 Vol% 3.75
Xylene 0.96 Vol% (2) Propane 0.41 Vol% 2.56
Response time with measuring gas when using the ULTIMA XIR Flow Cap
[flow rate 1 l/min.]: 50 = 10 s, t
90
= 30 s.
Measuring gas
100 % LEL in
Vol%
Response to 50 % LEL of the
measuring gas
Acetone 2.5 Vol% 15 % LEL
Acetylene 2.3 Vol% 0 % LEL
Allyl alcohol [50 °C] 2.5 Vol% 16 % LEL
Ammonia 15 Vol% 0 % LEL
[FAM-] Benzine 65/95 1.1 Vol% 46 % LEL
1,3-Butadiene 1.4 Vol% 7 % LEL
i-Butane 1.5 Vol% 49 % LEL
n-Butane 1.4 Vol% 47 % LEL
2-Butanon [MEK] 1.8 Vol% 25 % LEL
i-Butyl Acetate 1.3 Vol% 34 % LEL
n-Butyl Acetate 1.3 Vol% 36 % LEL
i-Butylene 1.6 Vol% 25 % LEL
Cyclohexane 1.2 Vol% 31 % LEL
Cyclopentane 1.4 Vol% 53 % LEL
Diethyl Ether 1.7 Vol% 42 % LEL
Acetic Acid [50 °C] 4.0 Vol% 78 % LEL
Acetic Anhydride [50°C] 2.0 Vol% 2 % LEL
Ethane 2.5 Vol% 56 % LEL

MSA Ultima X Series Specifications

General

Brand	MSA
Model	Ultima X Series
Category	Measuring Instruments
Language	English