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testo 316-2 / testo gas detector /
testo 316-EX
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Data sheet
testo 317-2
testo 316-1
testo 316-2
testo gas detector
testo 316-Ex
Gas leak detectors
For a quick overview
CH
4
C
3
H
8
H
2
Gas leak testing
Over and over again, devastating explosions and fires are
caused by leaky gas pipelines. However, even smaller leaks
in the gas pipelines, some of which cannot be detected by
odour, lead directly to higher consumption and, in the long
run, increase the risk of accidents.
How do leaks occur?
Leaks can be caused, for example, by hairline cracks
(cracks which are hardly identifiable with the naked eye) in
the pipelines. The often used hemp sealant can also, after
many years of use, become leaky.
Fast testing
Thanks to technological developments, it is today possible
to use a test instrument to carry out a gas pipeline test (leak
quantity test) in a very short time. If a leak is determined,
the site of the gas leak can be identified very quickly and
reliably with the help of the gas leak detector.
testo 317-2 / testo 316-1 / testo 316-2 / testo gas detector / testo 316-EX
Overview Testo gas leak detectors
The convenient
gas leak detector
for beginners
testo 317-2
Measuring
instrument
The detector for
leaks in natural gas
pipes
testo 316-1
The gas leak
detector with
integrated pump
for fast check
measurements
testo 316-2
Gas detector
testo gas detector
Gas detector
with
EX-protection
testo 316-EX
Measuring range
Methane
Propane
Hydrogen
100 to
20.000 ppm CH
4
50 to 10.000 C
3
H
8
1st alarm limit
100 ppm CH
4
50 C
3
H
8
2nd alarm limit
Lower response
thresholds
–
– –
–
100 to
10,000 ppm CH
4
100 ppm
from 200 ppm CH
4
(LED yellow)
10.000 ppm CH
4
5000 C
3
H
8
(20% LEL)
from 10.000 ppm CH
4
(LED red)
10 ppm to 4,0
Vol. % CH
4
10 ppm to 1,9
Vol. % C
3
H
8
10 ppm to 4,0
Vol. % H
2
10 ppm
200 ppm CH
4
100 ppm C
3
H
8
200 ppm H
2
10.000 ppm CH
4
5.000 ppm C
3
H
8
10.000 ppm H
2
10 ppm
–
–
Display
Resolution – – – 1 ppm / 0,1 Vol. %
8 segment trend
display
LED (3 colour) 18 segment bar
display
ppm display
Battery life 4 h (LR03) > 5 h 6 h > 8 h
Other features audible signal
1 ppm to
2.5 Vol. % CH
4
1 ppm to
1.0 Vol. % C
3
H
8
–
–
–
1 ppm / 0,1 Vol. %
–
to 10 h
Semi-conductor
sensor
Earphone socket · extendable probe
· Inherently safe
sensor according to
DMT
10 to 999 ppm CH
4
0,1 to 4,4 Vol. % CH
4
10 to 999 ppm C
3
H
8
0,1 to 1,9 Vol. % C
3
H
8
10 to 999 ppm H
2
0,1 to 4,0 Vol. % H
2
1 ppm to
2.0 Vol. % H
2
Protection class
IP54
EU guideline
94/9/EG (ATEX)
2004/108/EG
EX-protection II 2G
EEx ib IIC T1 (Ex
Zone 1)