MSA 47K Series User manual

MSAsafety.com
Operation Manual
Series 47K Gas Detector [SIL 2]
Order No.: 10052472/14

Schlüsselstrasse 12
8645 Rapperswil-Jona
Switzerland
© MSA 2016. All rights reserved
For the Declaration of Conformity, please visit the product page on MSAsafety.com.

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MSA CONTENTS
Series 47K Gas Detector [SIL 2] 3
Contents
1.Safety Regulations .............................................................................................. 6
1.1.Correct Use ................................................................................................ 6
1.2.Liability Information .................................................................................... 6
1.3.Application, Advice and Restrictions .......................................................... 7
2.Description........................................................................................................... 8
2.1.General ...................................................................................................... 8
2.2.Principle of Operation................................................................................. 9
2.3.Technical Specification............................................................................... 9
3.Installation.......................................................................................................... 11
3.1.Installation – Step by Step........................................................................ 11
3.2.Unpacking ................................................................................................ 11
3.3.General Installation Instructions for Achieving EMC Compliance............. 11
3.4.Recommended Torque and Terminal Sizes ............................................. 12
3.5.Electrical Connection to the Control Unit.................................................. 13
3.5.1Junction Box Terminals .................................................................................13
3.5.2Maximum Cable Length ................................................................................13
3.6.Electrical Connections.............................................................................. 14
4.Start-up............................................................................................................... 14
5.Maintenance and Service.................................................................................. 15
5.1.Calibration ................................................................................................ 15
5.1.1Zero Calibration .............................................................................................16
5.1.2Span Calibration ............................................................................................16
5.1.3Calibration with Accessories .........................................................................16
5.2.Sensor Replacement................................................................................ 17
5.3.Series 47K-PRP and Series 47K-HT-PRP ............................................... 18
5.3.147K-HT-PRP..................................................................................................19
5.3.247K-PRP........................................................................................................19

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CONTENTS MSA
4Series 47K Gas Detector [SIL 2]
6.Accessories ....................................................................................................... 22
6.1.Calibration Cap ........................................................................................ 22
6.2.Weather Protection Cap........................................................................... 22
6.3.Flow Through Adapter / Pump Adapter.................................................... 23
6.4.Duct Mount Flange................................................................................... 24
6.5.Pipe Mounting Kit ..................................................................................... 25
6.5.1Mounting Kit for Pipes with a Diameter of up to 50 mm................................25
6.5.2Mounting Kit for Pipes with a Diameter from 50 mm to 150 mm ..................26
6.6.Remote Calibration Adaptor (CalGard) .................................................... 26
6.6.1Installation ......................................................................................................27
6.6.2Operation .......................................................................................................28
7.Markings, Certificates and Approvals ............................................................. 29
7.1.According to the Directive 2014/34/EU [ATEX] ........................................ 29
7.1.1Series 47K-PRP, Series 47K-HT-PRP..........................................................29
7.1.2Junction Box Typ S47K and X Series AL Junction Box................................30
7.2.According to IECEx .................................................................................. 31
7.3.Special Conditions for SIL 2 According to TUV Certificate 968 /
EZ 392.00/09............................................................................................ 32
8.Ordering Information......................................................................................... 34
8.1.Gas Detector (Sensor + Junction Box)..................................................... 34
8.2.Gas Detector, Calibrated with Certified MSA Gas Controllers.................. 34
8.3.Sensor...................................................................................................... 34
8.4.Junction Box............................................................................................. 35
8.5.Accessories.............................................................................................. 35

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MSA CONTENTS
Series 47K Gas Detector [SIL 2] 5
9.Dimensions ........................................................................................................ 36
9.1.Gas Detector (Ex e Junction Box) ............................................................ 36
9.2.Gas Detector (Ex d Junction Box) ............................................................ 37
9.3.S47K Adapter Plate (Junction Box) .......................................................... 38
9.4.Wall Mounted Bracket, Sensor 47K-HT-PRP ........................................... 38
9.5.Junction Box ATEX 100 °C; Sensor 47K-HT-PRP ................................... 39
9.6.Pipe Mounting Kit ..................................................................................... 40
9.6.1Mounting Kit for Pipes with a Diameter of up to 50 mm................................40
9.6.2Mounting Kit for Pipes with a Diameter from 50 mm to 150 mm ..................41
9.7.Remote Calibration Adaptor ..................................................................... 42
10.Wiring Diagrams ................................................................................................ 43
10.1.MSA Control Unit SUPREMA ................................................................... 43
10.1.1Series 47K-PRP/-HT-PRP [3-wire]................................................................43
10.1.2Series 47K-PRP/-HT-PRP [5-wire]................................................................44
10.2.MSA Control Unit 9010 / 9020 Series....................................................... 44
10.2.1Series 47K-PRP/-HT-PRP [3-wire] Channel A .............................................44
10.2.2Series 47K-PRP/-HT-PRP [3-wire] Channel B .............................................45
10.3.MSA Control Unit Gasgard XL ................................................................. 45
10.3.1Series 47K-PRP [3-wire] ...............................................................................45
10.3.2Series 47K-HT-PRP ......................................................................................46
10.4.Wiring Diagram Sensor 47K-HT-PRP with Junction Box ATEX 100 °C ... 46
11.Appendix ............................................................................................................ 47
11.1.Discontinued Gas Detectors..................................................................... 47
11.1.147K-ST...........................................................................................................47
11.1.247K-HT ..........................................................................................................48

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SAFETY REGULATIONS MSA
6Series 47K Gas Detector [SIL 2]
1. Safety Regulations
1.1. Correct Use
The MSA Gas Detector Series 47K is designed to continuously monitor the
atmosphere for the presence of potentially explosive gas or vapour in air in the
range 0 to 100% LEL.
It is designed for use as an integral part of an MSA fixed gas detection system for
the protection of industrial plant and workers.
It is imperative that this operating manual be read and observed when using the
system. In particular, the safety instructions, as well as the information for the use
and operation of the apparatus, must be carefully read and observed.
Furthermore, the national regulations applicable in the user's country must be
taken into account for a safe use.
Danger
This product is supporting life and health. Inappropriate use,
maintenance or servicing may affect the function of the device and
thereby seriously compromise the user’s life.
Before use, the product operability must be verified. The product must
not be used if the function test is unsuccessful, it is damaged, a
competent servicing/maintenance has not been made, genuine
MSA spare parts have not been used.
Alternative use, or use outside this specification will be considered as non-
compliance. This also applies especially to unauthorised alterations to the
apparatus and to commissioning work that has not been carried out by MSA or
authorised persons.
1.2. Liability Information
MSA accepts no liability in cases where the product has been used
inappropriately or not as intended. The selection and use of the product are the
exclusive responsibility of the individual operator.
Product liability claims, warranties also as guarantees made by MSA with respect
to the product are voided, if it is not used, serviced or maintained in accordance
with the instructions in this manual.

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MSA SAFETY REGULATIONS
Series 47K Gas Detector [SIL 2] 7
1.3. Application, Advice and Restrictions
This Manual should be carefully read by those responsible for use and
maintenance of the gas detection and monitoring system.
The series 47K catalytic sensor is suitable for the detection of gases or
vapours in air with a concentration below the Lower Explosive Limit [LEL].
The series 47K catalytic sensor cannot measure concentrations of gases or
vapours in inert atmospheres or oxygen deficient atmospheres. The European
standard EN 60079-29-2 indicates an Oxygen concentration higher than
10 vol% is necessary for correct operation of catalytic sensors.
Attention
The certification does not permit use of the series 47K sensor in
oxygen enriched atmospheres.
The series 47K catalytic sensors can be poisoned by high levels or long
exposure to certain substances present in the atmosphere being monitored.
When a catalytic sensor is installed in a place where those substances may
be present, to ensure the correct operation and measurement accuracy the
sensor should be calibrated more frequently.
The sensitivity of the series 47K catalytic sensors is reduced by the presence
of silanes, silicates, silicones, tetraethyl lead, halogen compounds, sulphurous
compounds, organic-phosphorous compounds and compounds containing:
fluorine, chlorine, iodine or bromine, therefore the sensors must be
recalibrated after exposure to these substances.
The series 47K sensor opening [sintered disc] must be protected against
water, dust and mechanical damage. During painting operations in the area
where the sensor is installed, avoid traces of paint on the sensor opening. The
paint must not interfere with the diffusion process.
Note that the sensor opening [sintered disc] must always face downwards.
After having exceeded the full scale value an increased display of measured
values can appear temporarily. During this period no calibration must be
performed.
The only method of verifying the correct operation of the sensor is to carry out a
span check using a known concentration of calibration gas in air.
For response curves contact your national MSA office.

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DESCRIPTION MSA
8Series 47K Gas Detector [SIL 2]
2. Description
2.1. General
The MSA Gas Detector Series 47K is designed to continuously monitor the
atmosphere for the presence of potentially explosive gas or vapour in air in the
range 0 to 100% LEL.
It is designed for use as an integral part of an MSA fixed gas detection system for
the protection of industrial plant and workers.
Typical areas where the MSA Series 47K Gas Detector can be used include:
The chemical and petrochemical industry
The paint and solvent-processing industry
The gas-processing industry
The steel-processing industry
Municipal areas
The Production, Warehousing, Distribution, Shipping and processing of gases
and vapours
The MSA Series 47K Gas Detector consists of the Series 47K catalytic sensor
and the junction box that contains the terminal board.
There are two versions of the junction box available:
Flameproof [Ex d] with ¾” NPT cable gland thread
Increased safety [Ex e] with metric M25 cable gland thread
The following Sensor Versions are available:
Series 47K-PRP: Poison Resistant Pellistor [100% LEL]
Series 47K-HT-PRP: High Temperature Poison Resistant Pellistor
[100 % UEG]
All versions are available in Stainless Steel 316.
Four accessories are available to allow easy calibration and to adapt the gas
detector to various applications:
Calibration cap
Flow through adapter
Duct mount flange
Weather protection cap with remote calibration capability

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MSA DESCRIPTION
Series 47K Gas Detector [SIL 2] 9
2.2. Principle of Operation
The MSA 47K series of sensors operate on the principle of catalytic combustion.
The sensing element consists of a pair of filaments [“pellistors”] connected to a
pair of precision resistors to form a Wheatstone bridge.
One of the filaments, the detector, is coated with a catalyst, whilst the other, the
compensator is used as a reference to achieve the best stability.
The gas or vapour diffuses through a porous Stainless Steel sintered disc, which
acts as a flashback arrestor. When gas comes into contact with the surface of the
detector filament, it is oxidised. The heat generated by the reaction increases the
temperature of the detector, which results in a change of the detector electrical
resistance, and hence an unbalance of the Wheatstone bridge. The result is an
output signal directly proportional to the concentration of the flammable gas or
vapour. The signal is processed by an MSA controller designed to display the gas
concentration, actuate alarms and provide a suitable output signal to activate
subordinated external measurement data acquisition systems.
2.3. Technical Specification
The Series 47K combustible gas sensors are designed to meet the rigorous
requirements of ATEX Directive 2014/34/EU for fixed gas detection installations.
Sensor
Power consumption 1 Watt, typically
Linear dynamic range Standard & PRP & HT-Sensor: 0–100% LEL
Response time t50 ≤10 sec for propane + methane
t90 ≤20 sec for propane + methane
For other gases or vapours the response time
may be longer.
Typical sensitivity PRP- sensor methane: 12 mV/vol%;
propane: 16 mV/vol%;
HT-PRP- sensor methane: 12 mV/vol%;
propane: 16 mV/vol%;
Operating configuration Wheatstone Bridge circuit
Operating mode Constant current
Sensor current 310 mA for 47K-PRP,
280 mA for 47K-HT-PRP
Vmax 10 V
Operating life time 3 Years, in clean air, typically
Storage life time 5 Years, in MSA container, typically
Storage temperature range -20 °C to +40 °C**

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DESCRIPTION MSA
10 Series 47K Gas Detector [SIL 2]
Operating temperature range PRP- sensor
Extended range *)
-25 °C to +55 °C
-40 °C to +55 °C
HT-PRP sensor -40 °C to +160 °C
Operating humidity range 5% to 95% RH non-condensing
Operating pressure range 800–1200 hPa
Air velocity Air velocity 0–6 m/s
[with duct mount flange: 0.5–20 m/s]
Poison resistance PRP sensor and HT-PRP sensor:
10 ppm HMDS for 40 min.
[max. signal loss 5% of reading]
Dimension Ø 36 x 56 mm
Weight < 230 g
Material St. St. 316
Accessory thread M36 x 1.5 mm
Sensor to junction box ¾” NPT or M25 x 1.5 mm
*) Extended range: The sensor extended temperature range is greater than the maximum specified in
EN 60079-29-1. It is therefore strongly recommended that if used above +55 °C or below -25 °C the
sensor is calibrated at the operating temperature.
**) The storage temperature range is also valid for spare parts and accessories

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MSA INSTALLATION
Series 47K Gas Detector [SIL 2] 11
3. Installation
3.1. Installation – Step by Step
(1) Unpack and inspect the device or its components.
(2) Check the suitability of the installation site and the cabling requirements.
(3) Install the sensors and connect the wiring to the MSA control unit.
(4) The installation of the sensor must be performed according to standard
EN 60079-14 or according to applicable national standards.
Warning
Follow the installation instructions for hazardous areas!
(5) After installation is complete, perform the start-up procedure as instructed in
the relevant MSA controller manual.
3.2. Unpacking
Perform the following steps on receipt of the shipment:
(1) Carefully unpack the device or its components, observing all of the
instructions printed on or accompanying the packaging.
(2) Also inspect the contents of the delivery to determine if any transport
damage has occurred and verify that everything listed in the shipping papers
has been received.
3.3. General Installation Instructions for Achieving EMC Compliance
For connection to the power supply system a fault-free ground or fault-free
equipotential bonding must be provided.
An appropriate supply voltage free of feedback to the external source in
accordance with the EMC Directives (2014/30/EU) must be used.
If the devices are supplied from a direct voltage [dc] source, the supply cable
must be screened.
Screened cable is to be used to connect the sensor signal.
Screened cable must have at least 80% coverage by the screening.
Sensor cables must be installed physically separate from power supply
cables.
Screened cables must be installed in one piece. If it should prove necessary
to extend a cable by way of a terminal box, the terminal box must be
screened, and the connections in the box must be kept as short as possible.
Unscreened cables and cables from which the insulation has been stripped
must be as short as possible and must be terminated without loops.
If additional high-voltage surge protection measures are required an
appropriate high-voltage protection filter, approved by MSA, must be installed
in the sensor cable.

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INSTALLATION MSA
12 Series 47K Gas Detector [SIL 2]
Strict adherence to the specifications and regulations applicable to installation,
start-up, operation, and maintenance is required.
Follow the installation instructions for hazardous areas.
The specified environmental conditions must be adhered to.
Position the height of the MSA Gas detector Series 47K according to the
density of gas or vapour to be measured.
The proper installation location must be chosen to ensure that the sintered
disc of the MSA Gas detector Series 47K is kept dry and dust-free.
The sintered disc must always face downwards.
The MSA Gas detector Series 47K must never be covered with paint, grease
or similar.
These substances prevent diffusion, of the atmosphere to be monitored, to the
sensing elements.
3.4. Recommended Torque and Terminal Sizes
Cable gland size Connection
thread Pressing screw Terminal sizes
M25 x 1,5 3,0 Nm 2,0 Nm 7–12/10–17* mm
* To be able to use size M25 x 1,5 for terminal sizes 10–17 mm, remove the small sealing ring.

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MSA INSTALLATION
Series 47K Gas Detector [SIL 2] 13
3.5. Electrical Connection to the Control Unit
3.5.1 Junction Box Terminals
Screw terminals: cross section 0,5–2,5 mm2
Spring terminal: cross section 0,5–1,5 mm2
3.5.2 Maximum Cable Length
The maximum cable length depends on the maximum permissible load, the cross
section of the conductor and the conductor material.
The maximum permissible load [loop resistance] is 36 ohms for the MSA Control
units SUPREMA [for MSA Control unit 9010/9020 refer to the control unit
manual].
Maximum cable length: L = R x k x A
2
L = cable length in metres [loop]
R = maximum permissible load in ohms
A = cross sectional area of conductor in mm2
k = conductivity of copper at 20 °C [1/Resistivity]
Example: R = 36 ohms, A = 0.75 mm², k = 56 m ohms-1 mm-2
L = 36 x 56 x 0.75/2 = 756 m
Wire Cross
Section
Maximum Load
[max. cable resistance]
Maximum
Length
Remarks
0.75 mm² 36 Ohm 750 m Screened cable
is required.
1.5 mm² 36 Ohm 1,500 m
For detailed information refer to the relevant MSA controller manual.

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START-UP MSA
14 Series 47K Gas Detector [SIL 2]
3.6. Electrical Connections
Warning
Installation should only be carried out by suitably qualified personnel.
During installation all relevant codes of practice and National wiring
regulations should be complied with especially in places where there is a risk
of explosion and fire. [Classified areas]
Refer to the MSA controller instruction manual for the sensor connection
details.
Where an earth connection to the junction box/sensor is required use the
earth terminal provided on the outside of the junction box.
The sensor connections are shown in Section 10, Wiring diagrams.
4. Start-up
Warning
Installation should only be carried out by suitably qualified personnel.
Before applying power ensure that all installation steps have been correctly
carried out and the cable connections and controller configuration are correct.
Caution
Ensure that the sensor current is correctly set to 310 mA for the
47K-PRP and 280 mA for the 47K-HT-PRP.
Allow a warm-up time of at least 30 minutes before calibrating the gas sensor.
Perform an initial calibration following the instructions in Section 5.1 “Calibration”
and the manual for the relevant MSA controller.

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MSA MAINTENANCE AND SERVICE
Series 47K Gas Detector [SIL 2] 15
5. Maintenance and Service
There are no serviceable or adjustable parts within the sensor assembly and any
attempt to dismantle the assembly or access it will invalidate the sensor
approvals and manufacturers guarantee.
Maintenance and service may only be performed by authorised and suitably
qualified personnel.
Caution
To guarantee the nonambiguity of the series 47K catalytic sensor
operation ensure [e.g. by check with hand-held test instruments] each
time before turning on the sensors that the atmosphere to be
monitored by the sensors is free of combustible gases.
Maintenance must be performed according to standards EN 60079-17 [gas] and
EN 61241-14 [dust] or according to applicable national standards.
5.1. Calibration
According to EN 60079-29-2 the combustible gas detectors must be checked at
regular intervals to ensure that it is functioning properly in accordance with the
applicable international, national, industry-specific or company regulations.
The sensitivity and zero point of the sensor must be adjusted as necessary [every
6 months at the latest] in accordance with the operating instructions for the type
of sensor and controller it is connected to.
Sensors that are no longer able to generate the minimum signal must be replaced
[see relevant controller manual].
Allow a warm-up time of at least 30 minutes for the sensor to stabilise, before
calibration is performed.
Calibrating the Gas Detectors 47K-HT-PRP
These gas detectors must be calibrated at their ambient working temperature
using the flow through adaptor [please refer to 5.1.3 Calibration with accessories].
The specified temperature range of the 47K-HT-PRP gas detectors is -40 °C to
+160 °C and the bridge operating current is 280 mA.

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MAINTENANCE AND SERVICE MSA
16 Series 47K Gas Detector [SIL 2]
5.1.1 Zero Calibration
Apply zero gas to the sensor using the appropriate calibration adapter.
Wait for approximately 2 minutes or until the sensor reading has stabilised.
Adjust the controller until the correct reading is obtained.
Gas flow rate : 1.0 l/min
Zero gas : synthetic air or component-free ambient air
5.1.2 Span Calibration
See also Section 5.3.
Apply span calibration gas to the sensor using the appropriate calibration
adapter.
After the reading has stabilised adjust the controller until the correct reading is
obtained.
Remove calibration adapter.
Gas flow rate : 1.0 l/min
Stabilisation time : depending on gas type between 2 and 4 min
Caution
Use span gas with a concentration of approximately 50% of the
measuring range. In no case should the span gas concentration be
less than 25% of the full scale value of the measuring range.
If possible, the span gas [the gas used to calibrate the sensor] and the
measurement gas [the gas to be monitored] should be identical. If this
is not the case and a reference gas is used, the response factor of the
gas used must be known.
5.1.3 Calibration with Accessories
Calibration of Gas detectors used with duct mount flange, flow through adapter or
weather protection cap should be carried out as described above using the
particular gas inlets of the accessories.
Gas flow rate : 1.0 l/m

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MSA MAINTENANCE AND SERVICE
Series 47K Gas Detector [SIL 2] 17
5.2. Sensor Replacement
Caution
In a hazardous area, ensure all necessary precautions are taken
before opening the junction box. Replacement of the sensor or other
parts should only be carried out by suitably qualified personnel.
After checking if it is possible to carry out operation, according to the type of
danger in the area where the gas detector is installed, proceed as follows:
(1) Disconnect the power supply to the gas detector at the Control unit.
(2) Remove the sensor junction box cover.
(3) Note the wire colours and numbering of the terminal board and disconnect
the sensor wires.
(4) Unscrew the sensor from the junction box.
(5) Screw the new sensor into the junction box using the correct size of tool
across the hexagon flats.
(6) Connect the sensor wires to the terminal block and ensure they are
connected to the correct terminals.
Refer also to the wiring diagram in Section 10.
Close the sensor junction box cover and ensure that the gas detector is in
compliance with all relevant safety regulations and directives.

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MAINTENANCE AND SERVICE MSA
18 Series 47K Gas Detector [SIL 2]
5.3. Series 47K-PRP and Series 47K-HT-PRP
For the gases or vapours shown in the tables of Section 5.3.1 and 5.3.2 the
response curves have been tested according to EN 61779-1. If the LEL of a
substance was not listed in EN 61779-1, the LEL has been taken from the
Chemsafe data base [Dechema, Frankfurt]. Due to legal requirements other
locally used LEL values might be mandatory.
It is highly recommended that the gas detector is exposed to clean air when
calibrating the zero and a mixture of the target gas in air with a concentration of
approximately 50% LEL.
If calibration with the target gas is not possible a reference calibration can be
performed with 0,85 vol% Propane C3H8in air and using the relative response
data given in the table of Section 5.3.1 and 5.3.2. These values are only valid for
new sensors and, unless otherwise stated, they refer to an ambient temperature
of 20 °C. If using a reference gas to calibrate the gas detector the displayed
values may vary by up to ±20% from the target gas concentration.
Reference calibration example for 50% Acetone:
(1) Relative response factor for Acetone from = 0.94
table in Section 5.3.2.
(2) Propane calibration gas concentration being used = 0.89 vol% C3H8
(3) Propane volume concentration for 100% LEL = 1.7 vol%
(4) Propane calibration gas concentration in % LEL
= 52.4% LEL
(5) Gas detector span setting = 52.4% LEL x 0.94 = 49.3% LEL
= 0.89 vol% C3H8 x 100% LEL
1.7 vol% C3H8

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MSA MAINTENANCE AND SERVICE
Series 47K Gas Detector [SIL 2] 19
5.3.1 47K-HT-PRP
Relative response factors of tested gases with reference to Propane.
These values are only valid for new sensors and, unless otherwise stated, refer to
an ambient temperature of 110 °C. In this case the displayed values may vary by
up to ±20% from the target gas concentration.
Sample gas 100% LEL
in vol%
Propane relative
response factor
Response
time [secs]
t50 *)
Response
time [secs]
t90 *)]
Methane 4.4 0.52 < 8 < 14
*) Response times are with a flow through adapter and a gas flow of 1 l/min
5.3.2 47K-PRP
Relative response factors of tested gases with reference to Propane.
These values are only valid for new sensors and, unless otherwise stated, refer to
an ambient temperature of 20 °C. In this case the displayed values may vary by
up to ±20% from the target gas concentration. Response times stated in the
enclosed table may vary by ±20% depending on the tolerances of individual
sensors.
Sample gas 100%
LEL
in vol%
Propane relative
response factor
Response
time [secs]
t50 *)
Response
time [secs]
t90 *)]
Propane 1,7 1.00
1)
14 24
Acetaldehyde 4 0.64 ²)
Acetic acid 3) 4 1.51 ²)
Acetic anhydride 3) 2 1.56 ²)
Acetone 2,5 0.94
1)
9 24
Acetylene 2,3 0.76 ²)
Acrylonitrile 2,8 0.75 ²)
Allyl alcohol 2,5 0.90 ²)
Ammonia 15 0.38 ²)
Benzene 1,2 1.21 ²)
1.3-Butadiene 1,4 1.01 ²)
i-Butane 1,3 1.20 ²)
n-Butane 1,4 1.09 ²)
1-Butylene 1,6 0.94 ²)
n-Butanol
(Butylalcohol)
1,4 1.40 ²)
2-Butanone 1,8 1.13
1)
12 31

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MAINTENANCE AND SERVICE MSA
20 Series 47K Gas Detector [SIL 2]
Sample gas 100%
LEL
in vol%
Propane relative
response factor
Response
time [secs]
t50 *)
Response
time [secs]
t90 *)]
i-Butyl acetate 3) 1,3 1.48 ²)
n-Butyl acetate 3) 1,2 1.56 ²)
Butylbenzene 3) 0.8 3.85 ²)
i-Butylene 1,6 0.93 ²)
Cyclohexane 3) 1 1.49 ²)
Cyclopentane 1,4 1.05 ²)
Diethylether 1,7 1,16 ²)
1.4-Dioxane 3) 1,4 2.22 ²)
Ethane 2,4 0.87 ²)
Ethanol 3,1 0.89
1)
11 31
Ethylene oxide 2,6 0.99 ²)
Ethene 2,3 0.77 ²)
1-Ethoxy-2
propanol 3)
[40 °C]
1,3 1.71
1)
14 46
Ethyl acetate 2,2 1.12
1)
13 46
Ethyl acrylate 3) 1,4 1.45 ²)
Ethylbenzene 3) 0.8 1.49 ²)
FAM-Benzin 65/95 1,1 1.40
1)
10 21
Gasoline 65/95
n-Heptane 3) 0,85 1.75 ²)
n-Hexane 3) 1 1.48 ²)
Hydrogen 4 0.53
1)
6 16
Methane 4,4 0.55 ²)
Methanol 6 0.62 ²)
Methyl tert-butyl
ether
1,5 1.12 ²)
n-Nonane 3) 0,7 1.85 ²)
n-Pentane 1,1 1.38 ²)
Propane 1,7 1.00
1)
1-Propanol [40 °C] 2,2 0.98
1)
10 50