Axel Semrau ODOR easy User manual

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Version 10/2017

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Contents
1 Introduction
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1.1 Intended use
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll m
1.2 Safety instructions
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1.3 Installation requirements
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1.3.1 Dimensions
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll o
1.3.2 Electrical connections
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll o
1.3.3 Gas connections
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll o
1.3.4 Ambient conditions
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll p
1.3.5 Remote transmission
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll p
1.3.6 Information concerning the delivery of the system
lllllllllllllllllllllllllllllllllllllllllllllllllllll p
2 Scope of delivery for ODOR EASY
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll q
2.1 Other accessories
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll q
3 Connecting the system
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rs
3.1 Gas connections
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rt
3.2 Electrical connections
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ru
3.2.1 Connecting the supply voltage
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3.2.2 Signal output
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3.2.3 Connecting a PC/laptop/tablet to the ODOR EASY
lllllllllllllllllllllllllllllllllllllllllllllllll rm
4 Commissioning
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rn
4.1 Setting the gas flows
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rn
4.1.1 Gas connections
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rn
4.1.2 Opening HyperTerminal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rn
4.1.3 Opening the valves and setting the gas flows
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rv
4.2 Setting the calibration gas concentration
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rv
4.2.1 Opening HyperTerminal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rv
4.2.2 Calibration gas input
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ro
4.3 Starting the test measurement
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ro
4.3.1 Opening HyperTerminal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ro
4.3.2 Opening the measuring menu
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ro
4.4 Testing the analogue output signal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rp
4.4.1 Opening HyperTerminal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rp
4.4.2 Opening the DAC menu
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rp
5 Settings
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rq
5.1 Connection parameters
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll rq

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5.2 Firmware
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tr
5.2.1 Service menu
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tt
5.2.2 Valve menu
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tu
5.2.3 Sensor menu
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tu
5.2.4 DAC menu
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tu
5.2.5 Clock menu
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tm
5.2.6 EEPROM data
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tm
5.2.7 Measure menu
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll to
6 Changing the calibration gas cylinder
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tq
7 Changing the sensor
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll tq
8 Power failure
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ur
9 Visual checks
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ur
10 Error messages
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll ur
11 Technical data
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uu
11.1 General requirements
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uu
11.2 Electrical requirements
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uu
11.3 Mechanical requirements
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uu
11.4 Ambient conditions
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uu
11.5 Software/firmware
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll um
11.6 Measurement area
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll um
11.7 Measuring frequency
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll um
11.8 Safety
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll um
12 Disposal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll um
13 Appendix
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll un
13.1 Setting the sensor type and the gain
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll un
13.2 Setting the offset voltages
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uv
13.3 Setting up the USB interface by Hyperterminal
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll uo
13.4 Data Logging
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll mv
13.5 Updating the firmware
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll mp

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1Introduction
1.1 Intended use
Dear Customer,
The ODOR easy is a device for the detection of sulphurous odorants in low pressure applications up to
2 bar that has been designed with special attention to automated measurement.
Typical odorants are:
Tetrahydrothiophene (THT)
Tertiary butyl mercaptan (TBM)
Ethyl mercaptan (EM)
Mixtures of mercaptan and/or sulphides (Scentinel™ E, Spotleak™ 1004, Captan™)
The device is not certified for use in areas with potentially explosive atmospheres and may only be used
for monitoring sulphurous odorants and odorant mixtures in natural gas, biogas and liquefied gas in
areas that are not subject to explosion hazards. The operating company must ensure that the operating
location is sufficiently ventilated. The device is not explosion protected and must not be operated in
such areas.
Yours AXEL SEMRAU GmbH & Co. KG

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1.2 Safety instructions
Symbols and signal words are used to call your attention to the usage and potential consequences of
safety information.
DANGER Calls your attention to a dangerous situation
that will result in serious injury or death
if it is not avoided.
WARNING Calls your attention to a dangerous situation
that could result in serious injury or death
if it is not avoided.
CAUTION Calls your attention to a dangerous situation
that could result in minor to moderate injury
if it is not avoided.
NOTICE: Calls your attention to potential material damage
and other important information.
1.3 Installation requirements
The manual contains all the information concerning the controls, usage, maintenance and adjustment of
the device, as well as all the technical data. The operating manual is an integral part of the ODOR EASY.
You should therefore keep the manual close at hand so that it is readily accessible for the necessary
information.
Read the operating manual carefully. The manual must be understood and followed in all respects by
those people who are responsible for the installation, operation and maintenance of the devices.
The place of use must be sufficiently dry. There is no protection against moisture or dripping water. The
service life of the electrochemical sensor is reduced by overheating, so the ODOR easy should be
protected from direct sunlight. A voltage supply of 115V/230V, 50Hz/60Hz AC is needed for operation.
Conversion to a 12 V DC voltage supply is possible. The measured value is output using a 4-20 mA
current interface.
The current interface is not electrically isolated, hence there is a connection to the internal earth of the
device. Incorrect connection could result in damage to the device.
The ODOR easy is supplied ready for use with an electrochemical sensor for the detection of THT or
mercaptans.

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Fig. 1: ODOR easy system overview

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1.3.1 Dimensions
ODOR easy 270 x 240 x 90 mm
ODOR easy with rotameter 450 x 240 x 90 mm
Weight of ODOR easy: approx. 3.7 kg
We recommend wall mounting out of direct sunlight in order to prevent overheating.
A suitable holder for the gas bottles must be present immediately adjacent to the device. (Calibration
gas bottle with 10 l capacity: Height 110cm; diameter 16cm; 30cm wide incl. pressure reducer)
1.3.2 Electrical connections
ODOR easy: 110/240V AC 50/60Hz, max. 24W, conversion to 12 V DC possible
The power supply does not need to be backed up by a UPS. The device has a restart function that
activates following a power failure.
1.3.3 Gas connections
Natural gas
Natural gas line with shut off valve (Pressure 20 mbar to max. 2 bar constant +/-10%, approx. 20 l/h).
The device is supplied with 6 mm or ¼” Swagelok
®¯° ±²²³´µ
. Please provide corresponding piping.
If the sampling point is far away from the device, a higher outflow may be required by using a bypass.
Calibration gas:
The calibration gas (approx. 1 bar, max. 2 bar, approx. 20 l/h) is a mixture of the odorant in nitrogen N2.
The calibration gas connection is supplied with 1/8” Swagelok
®¯° ±²²³´µ
. The calibration gas must
contain the substances (odorant) that are to be quantified. The concentration should correspond to the
concentration for which the highest measuring accuracy is desired.
Example mixture for THT measurement: 15 mg/m³ tetrahydrothiophene in nitrogen
Example mixture for mercaptan measurement: 9 mg/m³ Scentinel E®in nitrogen
The calibration gas should be in close proximity to the device so as to keep the purging times and hence
the calibration gas consumption low. 1/8” PFA hose should be used as the material for the supply line.
The pressure reduction unit should have a low dead volume and low adsorption for sulphur compounds.
Exhaust gas:
Exhaust line to open air (throughput approx. 20 l/h during measurement). The device is supplied with 6
mm or ¼” Swagelok
®¯° ±²²³´µ
. Corresponding gas lines must be provided.

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1.3.4 Ambient conditions
Outside the Ex zone (e.g. electrical equipment room)
Temperature range: 0 - 40°C
Relative humidity: 10-90%, no condensation
DANGER The device is not explosion protected and must not be operated in such areas.
The place of use must be sufficiently dry. There is no protection against
moisture or dripping water.
1.3.5 Remote transmission
Output: 4-20mA (not electrically isolated)
DANGER The current interface is not electrically isolated, hence there is a connection to
the internal earth of the device. Incorrect connection could result in damage to
the device.
1.3.6 Information concerning the delivery of the system
The system is normally delivered by a shipping company. It is important to note a few things on
accepting delivery of the system so that no problems arise due to any damage that may have occurred
during transit.
The delivered goods should be checked to ensure that:
¶
they are complete
¶
the packaging is externally intact
¶
they are in perfect condition
Please inform us immediately in writing by fax and by telephone if acceptance is refused.

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2Scope of delivery for ODOR EASY
ODOR easy basic unit with THT or mercaptan sensor for detection of the odorant.
USB storage medium with HyperTerminal software.
2.1 Other accessories
Mains cable
USB cable type B
Rotameter for setting the flow rate for the sample gas and the calibration gas
Additionally required material:
These items can be ordered direct for ODOR EASY from AS.
Calibration gas: The concentration of all substances to be measured in N2should be close to
the concentration in the sample gas to be analysed.
Low absorption pressure reducer
PC/laptop/tablet: Minimum configuration:
One free USB port
Windows 7/8/10 operating system
Connection lines: 6 mm, 1/4” or 1/8”, other tube fittings on request
NOTICE: Please use PTFE or PFA lines for the calibration gas so as to avoid adsorption
of the gas.

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3Connecting the system
The cover must be removed in order to connect the device.
DANGER Installation and commissioning must only be performed by trained personnel.
Connections to gas lines and electrical connections need to be established.
Fig. 2: Interior view of ODOR easy