practical training combimass®ga-m portable gas analysis

BINDER GROUP

1

Practical Training

COMBIMASS® GA-m Portable Gas Analysis

- Physical Principles of Analysis

- Combination of gas cells

- Cross sensitivities and Accuracy

- Practical Advices for Daily use / Re-calibration

- Toxicity of Biogas Compounds – H2S, NH3, CO2

- Recalibration of gas cells

- Accessories / Wearing parts

- Service/Maintenance, Service Contracts & Repair

- Portable vs. Stationary Analysis

Training April 2013

BINDER GROUP

What can be measured with which procedure?

CH4 CO2

8 000000Capacitive sensors

6 000666Resistance sensors

10 101010101010Gas chromatography

6 007000Photo ionization

0 005008Flame ionization

0 010001010Heat conductivity

0 10671020Electrochemical

10 00701010Infrared Absorption

H2O H2SH2NH3O2Technique

Instrument Technique COMBIMASS®-Gas analysis

0 – not suited ….. 10-suited very well

2H2S-cells musn´t be overloaded!

BINDER GROUP

Further information

3

- IR procedure very selectively, favorably and long-lived

- NH3 can be measured also with IR, however very long cuvettes

required, is therefore usually measured electro-chemically

- all parameters measured with heat conductivity require a pressure,

a temperature and a speed correction

- procedure go well with very high CH4-concentrations, it give

however problems, even if H2 is present, very favorably

- the lower 4 procedures are used rather for laboratory instruments,

are also very expensive

BINDER GROUP

Infrared Absorption

Light source Optical filter Optical sensor

GAS

4


BINDER GROUP

- IR very exact and reproducible technique, very good stability against

H2S (often sensor poison)

- accuracy e.g. with +/-3 Vol.-%, long life span (regular replacement

after 5 years and more)

- no mechanically moved parts more - > small acquisition and

maintenance costs

- Measurement principle: certain frequency ranges are absorbed by

irradiation (to bring e.g. with the CO2 the chemical connections

between C and O-atoms to swinging, necessary energy a measure for

the quantity, frequency a measure for the connection/the

component is)

5

Further information

BINDER GROUP

Infrared Absorption

Main advantages

• gas-specific selectivity

• nearly no wear - good long-term stability

• CH4 and CO2 in one measuring cell

• simple production from steady material

Challenges

• temperature compensation is necessary

• pressure compensation is necessary

• cross-sensivity against waterdamp

• higher manufacturing costs

• complex auxiliary electronics

6


BINDER GROUP

Electrochemical Sensors

GASMembrane

Electrolyte solution

+ve

-ve

7


BINDER GROUP

Electrochemical Sensors

Main advantages• easy availability - selection of manufacturers with

favorable prices available

• to integrate simply electronically

• sufficient stability

• very simple auxiliary electronics

Main disadvantages• limited life span (12 to 24 months)

• danger of cross-axis sensitivities

• danger of the damage by other gases

8


BINDER GROUP

9

GasOperation

range

GA-m1-IR GA-m1-IR GA-m1-EC GA-m1-EC GA-m2 mix GA-m2-EC GA-m3-mix GA-m4-mix GA-m5-mix GA-e

only 1 IR only 1 IR only1 EC only1 EC 1 IR + 1 EC 2 EC 1 IR + 2 EC 1 IR + 1 -5 EC 2 IR + 1 -5 EC1 IR + 2

EC

ATEX no ATEX no ATEX ATEX no ATEX no ATEX no ATEX ATEX ATEX ATEX

CO2

0-10,000 ppm x x x x x

0-10% x x x x x

0-100% x x x

CH4 0-100% x x x x

O2 0-25% x x x x x x x x

CO 0-2000 ppm x x x x x x x

H2S

0-200 ppm x x x x x x x x

0-2,000 ppm x x x x

0-5,000 ppm x x x x

0-10,000 ppm x x x

H2 0-1,000 ppm x x x x x x x

SO2

0-20 ppm x x

0-100 ppm x x x x x x

NO 0-250 ppm x x x x x x

NO2 0-20 ppm x x x x x x

NH3 0-1,000 ppm x x x x x x x

BINDER GROUP

Accuracy of the gas cells

Please pay attention with the selection of the measuring technique to the

measuring accuracy!

% of the final value of the measuring range (full scale) or % of the reading

Example1 :

CH4-concentration with a measuring range of 0-100% and 3% accuracy without

information can be called with an actual measured value from 50%:

3% of reading → uncertainty/announcement 48.5 to 51.5 Vol-%

3% of full scale → uncertainty/announcement 47.0 to 53.0 Vol-%

Example 2:

H2S-Sensor with a measuring range of 0 - 2000 ppm and 3% accuracy without

information can be called with an actual measured value of 100 ppm:

3% of reading → uncertainty/announcement 97 to 103 ppm

3% of full scale → uncertainty/announcement 40 to 160 ppm

10

Accuracy

BINDER GROUP

Measures to increase the accuracy of the gas cells

In all Binder devices there are standard calibration points. If the gas cells will

be calibrated at these points, the accuracy of all values below the calibration

point is related to the calibration point and not to full scale.

Only repetition accuracy can be indicated, since for the calibration a test gas

is used, where composition can be not more precise than +/- 1.0% (test gas

class 1 with certificate)!

Example:

CH4: standard calibration points 0 / 50 / 60 Vol-%

Accuracy between 50 and 60% = +/- 3% of 60 = +/- 1.8 Vol-%

Accuracy between 0 and 50% = +/- 3% of 50 = +/- 1.5 Vol-%(after calibration)

Standard calibration points can be adapted to the application, e.g. set down

to 40/50% for older landfills or set 60% to 95% for biomethane applications.

11

Accuracy

BINDER GROUP

Measures to increase the accuracy of the gas cells

Example:

H2S: standard calibration points 0 / 100 ppm / 1,500 (4,500) ppm

Accuracy between 0 and 100 ppm = +/- 3% of 100 = +/- 3 ppm

Accuracy between 100 and 1,500 ppm = +/- 3% of 1,500 = +/- 45 ppm(after calibration)

Further calibration points see page 24 and also “Operation Manual GA-m”.

Frequency of calibration:

depends on gas concentrations and frequency of use (= wear of the

electrochemical cells) as well as expectations on accuracy (weekly/ monthly/

2 times per year)

12

Accuracy

BINDER GROUP

Handling (1)

Don´t use AUTO ZERO function! Use it only when you feel zero point settings

are wrong. Then press AUTO ZERO only when the GA-m is filled with fresh air

and when the instrument is “warm”!

Don´t store the GA-m over night in a cold car! Please store it at min. 1-2 hours

in a warm room before you give “hot” biogas into the analyzer! Otherwise

condensated water damp can influence IR-signal and damage electronics.

Don´t enter closed rooms if you are not sure for sufficient ventilation!

Prevent any drainage of water into the analyzer! Please choose carefully the

sampling point, use additional coalescence filter if required.

Please clean the analyzer with fresh air after each measurement!

13

Practical Advices for daily Use

BINDER GROUP

Handling (2)

Please charge the analyzer at min. once a week! Otherwise electrochemical

cells will not be powered any more and measure wrong values.

Please make sure that gas pressure at the sampling point is below 30 mbar.

Otherwise instrument can get damaged, measured data will be wrong. Please

use a pressure controller in front of the analyzer.

14

Practical Advices for daily Use

BINDER GROUP

Handling (3)

Please make sure that the analyzer is at min. 5-10 minutes ON before starting

re-calibration!

Please make sure that gas pressure at the sampling point is below 30 mbar.

Use the Original Binder pressure controller.

Please use “reset factory delta” only when all test gases are available at site!

When you check the calibration with test gas, don´t recalibrate the cell, when

the shown value is within +/- 2% of expected value.

Please maintain the analyzer according to manufacturer´s recommendation!

15

Practical Advices for Re-calibration

BINDER GROUP

16

It is a colorless, very poisonous, flammable gas with the characteristic foul odor of

expired eggs perceptible at concentrations as low as 0.00047 ppm.

H2S is slightly heavier than air; a mixture of H2S and air is explosive. H2S and oxygen

burn with a blue flame to form sulfur dioxide (SO2) and water.

Hydrogen sulfide is slightly soluble in water and acts as a weak acid.

H2S is a highly toxic and flammable gas (flammable range: 4.3 – 46%).

Being heavier than air, it tends to accumulate at the bottom of poorly ventilated

spaces. Although very pungent at first, it quickly deadens the sense of smell, so

potential victims may be unaware of its presence until it is too late.

Hydrogen sulfide is considered a broad-spectrum poison, meaning that it can poison

several different systems in the body, although the nervous system is most affected.

The toxicity of H2S is comparable with that of hydrogen cyanide.

(Wikipedia)

Hydrogen sulphide H2S

Toxicity of biogas compounds

BINDER GROUP

17

Safety precautionsAt some threshold level, believed to average around 300–350 ppm, the oxidative

enzymes become overwhelmed. Many personal safety gas detectors, such as those

used by utility, sewage and petrochemical workers, are set to alarm at as low as 5 to

10 ppm and to go into high alarm at 15 ppm.

Exposure to lower concentrations can result in eye irritation, a sore throat and

cough, nausea, shortness of breath, and fluid in the lungs. These effects are believed

to be due to the fact that hydrogen sulfide combines with alkali present in moist

surface tissues to form sodium sulfide, a caustic. These symptoms usually go away in

a few weeks.

Long-term, low-level exposure may result in fatigue, loss of appetite, headaches,

irritability, poor memory, and dizziness.

(Wikipedia)



BINDER GROUP

18

0.00047 ppm is the recognition threshold, the concentration at which 50% of

humans can detect the characteristic odor of hydrogen sulfide

Less than 10 ppm has an exposure limit of 8 hours per day

10–20 ppm is the borderline concentration for eye irritation

50–100 ppm leads to eye damage

At 100–150 ppm the olfactory nerve is paralyzed after a few inhalations, and the

sense of smell disappears, often 320–530 ppm leads to pulmonary edema with the

possibility of death

530–1,000 ppm causes strong stimulation of the central nervous system and rapid

breathing, leading to loss of breathing

800 ppm is the lethal concentration for 50% of humans for 5 minutes exposure

Concentrations over 1,000 ppm cause immediate collapse with loss of breathing,

even after inhalation of a single breath. (Wikipedia)



BINDER GROUP

19

Ammonia is a colourless gas with a characteristic pungent odour. It´s vapour has a

sharp, irritating, pungent odour that acts as a warning of potentially dangerous

exposure.

Although in wide use, ammonia is both caustic and hazardous. It is used in

commercial cleaning products.

NH3 boils at -33.34 °C at a pressure of 1 atmosphere, so we usually find it as a gas. it

is lighter than air, its density being 0.589 times that of air and is miscible with water.

When mixed with oxygen, it burns with a pale yellowish-green flame.

The basicity of ammonia also is the basis of its toxicity and its use as a cleaner. By

creating a solution with a pH much higher than a neutral water solution, proteins

(enzymes) will denaturate, leading to cell damage, death of the cell, and eventually

death of the organism.

(Wikipedia)

Ammonia NH3


BINDER GROUP

20

Safety precautionsThe U. S. Occupational Safety and Health Administration (OSHA) has set a 15-minute

exposure limit for gaseous ammonia of 35 ppm by volume in air and an 8-hour

exposure limit of 25 ppm by volume.

NIOSH recently reduced the IDLH from 500 to 300 ppm based on recent more

conservative interpretations of original research in 1943. IDLH (Immediately

Dangerous to Life and Health) is the level to which a healthy worker can be exposed

for 30 minutes without suffering irreversible health effects.

The average odour threshold is 5 ppm, well below any danger or damage. Exposure

to very high concentrations of gaseous ammonia can result in lung damage and

death.

Although ammonia is regulated in the U.S. as a non-flammable gas, it still meets the

definition of a material that is toxic by inhalation and requires a hazardous safety

permit when transported in quantities greater than 13,248 l. (Wikipedia)

Ammonia NH3


BINDER GROUP

21

The toxicity of ammonia solutions does not usually cause problems for humans and

other mammals, as a specific mechanism exists to prevent its build-up in the

bloodstream.

Ammonia is converted to carbamoyl phosphate by the enzyme carbamoyl

phosphate synthetase, and then enters the urea cycle to be either incorporated into

amino acids or excreted in the urine.

However, fish and amphibians lack this mechanism, as they can usually eliminate

ammonia from their bodies by direct excretion.

Ammonia even at dilute concentrations is highly toxic to aquatic animals, and for

this reason it is classified as dangerous for the environment.

(Wikipedia)

Ammonia NH3


BINDER GROUP

22

It is a gas at standard temperature and pressure and exists in Earth´s atmosphere in

this state, as a trace gas at a concentration of 0.039 percent by volume…

It is also a major source of ocean acidification since it dissolves in water to form

carbonic acid, which is a weak acid …

Carbon dioxide is colorless. At low concentrations, the gas is odorless. At higher

concentrations it has a sharp, acidic odor.

CO2 is an asphyxiant gas and not classified as toxic or harmful in accordance with

Globally Harmonized System of Classification and Labelling of Chemicals standards

of United Nations Economic Commission for Europe by using the OECD Guidelines

for the Testing of Chemicals. In concentrations up to 1% (10,000 ppm) will make

some people feel drowsy. Concentrations of 7% to 10% may cause suffocation,

manifesting as dizziness, headache, visual and hearing dysfunction, and

unconsciousness within a few minutes to an hour.(Wikipedia)

Carbon dioxide CO2


BINDER GROUP

23

Because it's heavier than air, in locations where the gas seeps from the ground .. it

can collect in sheltered/pocketed locations below average ground level, causing

animals located therein to be suffocated.

Adaptation to increased levels of CO2 occurs in humans. Continuous inhalation of

CO2 can be tolerated at three percent inspired concentrations for at least one

month and four percent inspired concentrations for over a week.

It was suggested that 2.0 percent inspired concentrations could be used for closed

air spaces (e.g. a submarine) since the adaptation is physiological and reversible.

Decrement in performance or in normal physical activity does not happen at this

level.

Acute carbon dioxide physiological effect is hypercapnia or asphyxiation sometimes

known by the names given to it by miners: blackdamp (also called choke damp or

stythe). Blackdamp is primarily nitrogen and carbon dioxide and kills via suffocation

(having displaced oxygen). (Wikipedia)

Carbon dioxide CO2


BINDER GROUP

24

Carbon dioxide differential above outdoor levels at steady state conditions (when

the occupancy and ventilation system operation are sufficiently long that CO2

concentration has stabilized) are sometimes used to estimate ventilation rates per

person.

CO2 is considered to be a surrogate for human bio-effluents and may correlate with

other indoor pollutants. Higher CO2 concentrations are associated with occupant

health, comfort and performance degradation.

ASHRAE Standard 62.1–2007 ventilation rates may result in indoor levels up to

2,100 ppm above ambient outdoor conditions. Thus if the outdoor ambient is 400

ppm, indoor levels may reach 2,500 ppm with ventilation rates that meet this

industry consensus standard. Levels in poorly ventilated spaces can be found even

higher than this (range of 3,000 or 4,000). (Wikipedia)

Carbon dioxide CO2


BINDER GROUP

25

Access to the closed mode:

Press buttons 4 - 8 - 6

within 10 seconds after start

Access to the closed calibration area for toxic gases

Re-calibration

BINDER GROUP

26

Access to the closed calibration area for toxic gases

Re-calibration

BINDER GROUP

27

Standard calibration points:0 / 50 / 60 Vol.-%

Calibration:If all test gases available start with

„CH4 reset factory delta“

Then calibrate the zero point: choose

„CH4 0.0% calibrate“ – press „pump“

- wait until CH4 is stable at around zero

- press „calibrate“ and stop „pump“

Then choose „CH4 60.0% calibrate“

- press „pump“ - wait until CH4 is stable


Then choose „CH4 50.0% calibrate“

- press „pump“ - wait until CH4 is stable


Re-calibration

BINDER GROUP

28

CO2-Standard calibration points:0 / 40 / 50 Vol.-%

O2-Standard calibration points:0 / 6 / 20.9 Vol.-%

H2S-Standard calibration points:0 / 100 / 1.500 / 4.500 ppm

Re-calibration

BINDER GROUP

29

Configuration GA-m

Instrument COMBIMASS® GA-m

BINDER GROUP

30

Data-logging via Siteman GA-m USB

• can be used to read stored data out and export to an EXCEL-sheet

Accessories

BINDER GROUP

31

Temperature measurement GA-m TEMP

• Measuring range: 0 – 100°C

• not ATEX-proof

temperature/flow in

gas out

gas in battery charger

Accessories

BINDER GROUP

32

COMBIMASS® Portable flow meter GA-m FLOW

• Measuring range: 0.25 – 25 m/sec

• flow: up to 12,000 Nm³/hr

• pipe diameter: 40 - 400 mm

• ATEX-proof zone 1

• calibration: DN80, 65% CH4/ 35% CO2

with automatic compensation of actual

gas composition in the GA-m

• humidity correction must be done in

the flowmeter

Accessories

BINDER GROUP

33

Hot tapping unit OEIN with quick coupler for gas sampling tube

• can be used to assemble / dis-assemble the COMBIMASS® flow

meter easily without damaging the sensor

• available with special adapter

for gas sampling: quick coupling

(photo) or a small ball valve

Accessories

BINDER GROUP

34

Pressure Controller and Coalescence Filter

• pressure controller shall be used in front of the analyser, if gas pressure is

above 30 mbar, not suited for permanent use

• filter shall be used in case of water drops in the gas flow

Accessories

BINDER GROUP

35

Wearing parts

• battery pack

• external filter

• internal filter

• electrochemical cells

• sampling hose

• gas pump

• plastic couplings

Maintenance

BINDER GROUP

Service / Repair

Service/Maintenance, Service Contracts & Repair

What is service work?• related to all Binder-labelled GA-m/GA-e instruments

• mainly consisting of

� Inward inspection

� Service work – replacement of cells, battery, gas pump, keypad and other

mechanical parts, leakage test and sealing of the instrument, further tests and

checks, calibration, set new/other calibration points than standard ones, put

new software on

� Outward inspection

What is repair?• related to Electronics

• related to IR-bench

36

BINDER GROUP

37

Maintenance Contracts

• necessary during warranty period, recommended also for further operation,

required for CDM-projects, all standard wearing parts included

• GA-m MC – portable use (every 12 months O2, every 24 months battery

and other electrochemical cells, every 3 years gas pump)

• GA-m MC1 – use in the station (every 12 months all electro-chemical cells,

every 24 months battery, every 3 years gas pump)

• GA-e MC – use in the station (every 12 months O2 and H2S)

• GA-m standby – for time of maintenance

• GA-m LOAN – min. 1 month, max. 6 months, price depends on the

configuration


BINDER GROUP

38

Service

If there is no maintenance contract, we offer a factory service on a fixed

price, but all wearing parts have to be paid separately

• GA-m SER - instruments CH4/CO2/O2/H2S

• GA-m SER1 - instruments CH4/CO2/O2/H2S/NH3

• GA-e SER - instruments CH4/O2/H2S


BINDER GROUP

39

Re-calibration of instruments

• GA-m TEST1 – re-calibration with CH4/ CO2

• GA-m TEST2 – re-calibration with CH4/ CO2/ H2S

• GA-m TEST3 - re-calibration with CH4/CO2/H2S and NH3

Standard calibration points:

CH4 0 / 50 / 60%

CO2 0 / 40 / 50%

H2S 0 / 100 / 1,500(3,500/ 4,500) ppm

O2 0 / 6 / 20.9%

All calibration points can be moved to other concentrations on request in Ulm

Maintenance & Service

BINDER GROUP

Questions Service GA-m/GA-e

What problems can occur during normal service?• defects on electronic parts

• defects on mechanical parts

How we proceed? • inform the customer

• send a new quotation, wait for new order

• if possible make repair in Ulm, worst case: send the instrument to the

U.K. and inform the customer

When we still send the analyzer back to the U.K.?• for repair

• for Priority service work

40


BINDER GROUP

Ticketing System (1)

REPAIRAs soon as you get the information that an instrument doesn´t work any

more (and/or if Binder Service People are not able to solve the problem by

phone) please send a mail – name the Serial-No. of the instrument and give a

short description what is wrong.

Send the analyzer to Innovative/ Binder Ulm with a description of the

problem as detailed as possible.

We open the analyzer and make first check. We prepare a cost estimation for

required repair to you (if it is not covered by warranty). We need an official

order. Only after receipt of your PO we will start with the work.

We repair the analyzer and send the analyzer back to you as soon as possible.

41


BINDER GROUP


SERVICE (without maintenance contract)As soon as you want to get serviced an instrument, please send a mail to Innovative

– name the Serial-No. of the instrument and ask for next free service date.

We will send you (based on age of the instrument and last service actions) a cost

estimation – contains all work, spares and wearing parts as well as the service data.

You will place the order within 5 days - we confirm and book the instrument in. (If

your order comes later than 5 days, may be a new and later service date can be

confirmed only.)

You need to send the analyzer to Innovative/ Binder Ulm in time, that analyzer will

be here 1-3 days before service date. We open the analyzer and make first check –

may be see that further parts needs a replacement – if yes, we revise our cost

estimation and need a new order from your side. Only after receipt of your new PO

we will start with the work.

We do service and maintenance work and send the analyzer back to you.

42


BINDER GROUP


SERVICE (with maintenance contract)We have a list with all instruments and service activities. Approx. 4-6 weeks

prior to required service we/Innovative will send you automatically a mail

and remind you about required service.

Please make sure that the instrument will be in time in Ulm.

We open the analyzer and make first check – may be see that further parts

needs a replacement – if yes, we send a cost estimation about required work

which is not covered by the maintenance contract and need an additional

order from your side. Only after receipt of your PO we will start with the

work.

We do service and maintenance work and send the analyzer back to you.

43


BINDER GROUP


SPARE ANALYZERIf you have a maintenance contract with spare instrument, it will be prepared

for shipment to you in time as soon as the instrument was booked in.

If you have a maintenance contract without spare instrument or there is no

contract at all, you can ask Innovative/Binder, if there is a spare instrument

available. If yes, we can prepare it and send it to you in time, but we will

invoice the spare analyzer.

Please be aware, that the analyzer can work well only when service is done in

time and also all recommended wearing parts are replaced.

44


BINDER GROUP

Priority Service GA-m/GA-e

How it works for you?Analyzer will be sent to Innovative/ Binder. GasData handles the instrument

under priority – makes all service work and repair (if necessary). Not single

parts will be replaced when damaged (like a transistor), but modules. This will

safe time. All required work will be done. If additional problems will be found,

without a new quotation the damaged parts will be replaced – at a lump sum.

AdvantagesFixed costs – depend only on No. of gas cells and age of the instrument

New warranty for 12 months on the instrument (except wearing parts)

No service contract is necessary, service can be done case by case

Standard Service time:2 weeks at GasData plus time for transport

45


BINDER GROUP

46

Main advantages of the portable unit

• at different places applicable, data can be stored

measuring point-specifically snap

• simple operation

• rugged technology, maintenance-poor,

• simple maintenance

• integration of other measurements like gas flow, gas

temperature & pressure possible

• correction of flow signal by actual gas composition

integrated

• measuring data recording, PC - evaluation

• ATEX certified


BINDER GROUP

47

Features COMBIMASS® Portable Biogas analyzer GA-m

• optical infrared analysis

• measurement of up to 7 gas components

• high performance measuring gas pump

• easily exchangeable measuring gas micro-filter

• up to 5 sensors plug-in and calibrated

• optionally CO and H2-cells available

• upgrade to an automatic, stationary analysis system

with up to 13 gas sampling points and 1 for test gas

and integrated measurement of flow and data seizure


BINDER GROUP

48

COMBIMASS® Gas Analyzer Station

Instrument COMBIMASS® GA-m & GA-s

BINDER GROUP

49

Standard- version COMBIMASS® GA-s

The Docking station contains:

Cabinet with SPC and display

Required valves etc. for 2 gas sampling points

4 analog inputs for 2x flow and 2x temperature/humidity

1 measuring gas pump on strip

1 flushing valve

1 common alarm (internal, not transferred to PLC,..)

1 cabinet exhaust

Gas and rinsing air are feed into the environment

Operation over Touchscreen or using 6 keys

Menus and Manuals in several languages available

Without Analyzer instrument

Configuration COMBIMASS®GA-s

BINDER GROUP

50

Requirements on the installation place

Switchgear cabinet (24 VDC) for the installation in a safe

area and non-corrosive ambient +5 to + 40°C ambient

temperature (indoors), LEL-monitored by separate means

For outdoor installation a second cabinet is built around.

Gas analyzer must be ordered separately. Two standard

analyzer are available:

1. Type: GA-e, without internal gas pump and without

battery, power supply via docking station (not suited for

portable measurements)

2. Type: GA-m, with standard plug power pack can be

used for portable measurements (after removal of

analyzer all valves close automatically and sampling

sequence stops)


BINDER GROUP

51

Features COMBIMASS® GA-s

• for GA-m analyzer with CH4/CO2/O2/H2S/H2/NH3

• can be expanded up to 13 measuring points (in a bigger cabinet) with

reading of 13 flow signals via DIN-rail modules, flow signals will get

compensated automatically by actual gas composition

• optionally the water content of the biogas

can be out-counted using a temperature

probe or internal humidity correction (in

special cases with a dew point probe)

• Test gas bottle connection for calibra-

tion of gas cells

• 24 VDC/230 VAC power supply box

• communication: Ethernet Modbus TCP

or Modbus RTU, Profibus DP or by analog

signals 4-20 mA


BINDER GROUP

Main advantages of the analysis station GA-s

• high performance measuring gas pump and

high-quality solenoid valves

• Data storage alternatively on USB-stick

• common alarm for leakages, over/falling below

of set points as well as ventilator & flow switch

controller in the standard version available, for

the signal transmission to PLC,… a relay can be

supplied as an option

• key to store and protect configuration data

• Climatized cabinet for outdoor- installation as

an option (incl. air cooling/heating and LEL-

control of the cabinet)

• gas feed back into the process pipe possible

52


BINDER GROUP

53

Special add-on equipment for the docking station GA-s

• Communication: Ethernet Modbus TCP, Modbus RTU/ RS485, Profibus DP,

Analog signals 4-20 mA (Module 1: CH4/ Flow/ O2/ H2S; Module 2: CO2/ gas5/

gas 6/ waterdamp contents; Module 3: gas temperature/ actual power/

cummulated power/ cummulated flow)

• 1 digital output module (to be used for the allocation of the measuring points)

can be supplied as an option if data are transmitted via 4-20 mA

• External gassensor 0-100% CH4/0-100% LEL with alarms can be implemented

• Gas feedback into the process optionally possible (with an additional solenoid

valve and if required an additional gas pump)

• gas cooler if gas temperature is above 40°C with coalescence filter for removal

of condensate


BINDER GROUP

54

Special add-on equipment for the docking station GA-s

Optional components for gas preparation:

• gas cooler

• coalescence filter

• pressure controller

• flaming arrestor (for safety)

Gas preparation can also supplied

on a mounting plate, all equipment

is already pre-mounts for easy in-

stallation at site.


BINDER GROUP

Different types of installation

- Anaerobic pre-treatment in an industrial WWTP

- Digester in a wastewater treatment plant

- Landfill

- Biogas Fermenter / Power Plants /Feed of biogas into natural gas pipes

55

Installation Examples

BINDER GROUP

Anaerobic pre-treatment of industrial wastewater

56

Typical installations:

Food industry f.e. breweries, juice production, dairies and milk industry, raw

material production for food industry, …


BINDER GROUP

Installations at wastewater treatment plants

57


BINDER GROUP

58


BINDER GROUP

Biogas fermentation plant

59

BINDER GROUP

60

Fermentation plant with gas treatment – feed to the natural

piping system


BINDER GROUP

Biogas flow metering in the power station room

61

BINDER GROUP

62

BINDER GROUP

Thank you for your attention!

Any Questions?

63

practical training combimass®ga-m portable gas analysis

Documents