TESTO 316-EX Instruction Manual
testo 316-EX · gas leak detector
Instruction manual
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1 Safety and the environment
3
1 Safety and the environment
1.1. About this document
Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
1.2. Ensure safety
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or feed lines.
> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
> Do not store the product together with solvents. Do not use any
desiccants.
> Only use the device in closed, dry rooms and protect it from rain
and moisture.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts from
Testo.
1.3. Protecting the environment
> Dispose of faulty rechargeable batteries/spent batteries in
accordance with the valid legal specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
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2 Specifications
4
2 Specifications
2.1. Use
The testo 316-EX is a gas leak detector for the short-term detection
of gases in areas at risk of explosion according to Directive
94/9/EC (ATEX).
Areas of application are the gas detection in rooms and the location
of leaks at gas systems. The instrument is designed for use by
trained personnel.
For operation in areas at risk of explosion, also observe the
Safety instructions document.
Explosion limits of flammable substances
A flammable substance in the air has a lower explosion limit (LEL)
and an upper explosion limit (UEL). The air/gas mixture is
flammable anywhere between these two limits, potentially leading
to an explosion (critical range). Below the LEL, the mixture is too
lean for an explosion, and above the UEL it is too rich (non-critical
range).
The explosion limits depend on the substance:
• Methane CH4: LEL 4.4 vol% / UEL 16.5 vol%
• Propane C3H8: LEL 1.7 vol% / UEL 10.9 vol%
• Hydrogen H2: LEL 4.0 vol% / UEL 77.0 vol%
Restrictions of the application range
Do not use the instrument as a monitoring instrument for personal
safety! The testo 316-EX is no protective equipment!
Do not use the instrument as a gas analyzer! The sensor detects
almost all flammable gases to the same extent.
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2 Specifications
5
2.2. Technical data
Characteristic Values
Type Semi-conductor
Response threshold 1 ppm
Reaction time (t90) 14 s
Measuring range Methane CH4: 0 ppm up to 2.5 vol%
Propane C3H8: 0 ppm up to 1.0 vol%
Hydrogen H2: 0 ppm up to 2.0 vol%
Accuracy (at 20 to
50 % RH, 0 to
40 °C/32 to 104 °F)
at 100 ppm: -50 ppm to +150 ppm
at 0.1 vol%: -250 ppm to +0.2 vol%
Accuracy (at
20…50 % RH,
-10 to 0 °C/
14 to 32 °F)
at 100 ppm: -60 ppm to +150 ppm
at 1,0 Vol%: -0,4 Vol% to +0,3 Vol%
Accuracy at 50%
LEL (at 20 to 50 %
RH, 0 to 40 °C/
32 to 104 °F)
CH4 (2.2 Vol%): -0.2 to +0.2 Vol%
C3H8 (1.0 Vol%): -0.2 to +0.3 Vol%
H2 (2.0 Vol%): -0.2 to +0.2 Vol%
Resolution at 0 to 999 ppm: 1 ppm
at 0.1 to 2.5 vol%: 0.1 vol%
Power supply 2 x 1.5 V mignon/AA
Type approved for use in areas at
risk of explosion: Camelion
Alkaline PLUS AA
Battery life approx. 6 h (typical)
Storage/transport
conditions
-10 to 50 °C / 14 to 122 °F
0 to 70 % RH
Operating
conditions
-10 to 40 °C / 14 to 104 °F
20 to 80 % RH not condensing
Weight approx. 200 g/0.44 lb. (incl. battery)
Dimensions (L x W
x H)
Housing: approx. 135 x 45 x 25 mm /
5.31 x 1.77 x 0.99"
Long, flexible sensor shaft including
sensor head: approx. 200 mm/7.87"
Protection class IP54
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2 Specifications
6
Characteristic Values
Warranty
2 years, warranty conditions: see
www.testo.com/warranty
EC Directives 94/9/EC (ATEX)
2014/30/EC
ATEX instrument
labelling
1258 II 2 G Ex ib IIC T1
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