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Gas analysis technology

PRONOVA supplies gas analysers which are based on optical (IR, UV), physical (WLD, PM) and electro-chemical principles

SSM 6000 for flue and process gases

IR multi-channel device for measuring flue and process gases

The SSM 6000 series is intended for measuring flue and process gases. It is designed to meet requirements for regular process monitoring directly at the facility. This device features selected and proven sensor technology for the relevant gas components: carbon monoxide, carbon dioxide, nitrogen monoxide, sulphur dioxide and oxygen for flue gases; methane, carbon monoxide, oxygen, hydrogen and carbon dioxide for process gases. Additional features enhance the quality of the measurement results and enable the device to be customized to your requirements. The analysis is carried out continuously. The SSM 6000 is easy to operate, with a clear display and history function (e.g. memory for all measured values ​​with time stamps).


Advantages

Various types of facilities present a multitude of difficult challenges for gas analysis instruments – with strict requirements for reliability and stability during continuous usage. Functional technology has been built into the SSM series to meet these requirements.

 

The following features are available for customizing the device to your application requirements:
– Multi-level preparation of measurement gas with filters and gas cooling (dehumidification). The dehumidification prevents sensor outages caused by condensation. It also reduces the risk of corrosion for components exposed to the gas being measured.

– Humidity and flow alarms,

– Elimination of pressure and temperature influences on the measured values,

– Detonation safety barrier (EN 12874) and housing ventilation to ensure safe handling of process gases.

 

The SSM series has additional special features:

– Extremely high long-term stability for the IR channels made possible by Pronova's ProCAL technology,
– Automatic single-point calibration for the other gas types,
– Large display showing all detected gases.

 

Measurement methods

Methane (CH4), carbon dioxide (CO2) and carbon monoxide (CO) are measured with excellent accuracy and selectivity using the dual-beam infra-red method. The influences of pressure and temperature on the measured results are effectively eliminated using this method. By supplementing the infra-red method with Pronova's ProCAL functionality, the device calibration has exceptional long-term stability.

 

Infra-red sensors are also used to measure carbon monoxide (CO) and sulphur dioxide (SO2) in the ppm range.

 

Nitrogen monoxide (NO) and oxygen (O2) are detected by electro-chemical sensors. Paramagnetic measuring cells can also be used for applications with special oxygen requirements. Thermal conductivity sensors can be used for detecting percentages of hydrogen concentrations.

 

Our range of available sensors can be customized to fit the measuring range and cross-sensitivity found in your requirements.

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TECHNICAL DATA
GENERAL  
Analogue outputs: 4 – 20 mA (one output per measured component);
    active outputs with one common ref. potential,
    max. load: 550 Ω
Data memory:

with history function,
    approx. 6500 values, ​​output via RS 232,
    also viewable on display

Digital outputs:

12 dig. outputs/functions, e.g. status signals, limit alarms, configurable measuring point switching;
    transistor type: open collector,
    external power supply: max. 24 VDC / 6 W

Flow display/control:

flow meter 7 – 70 l/h,
    gas connections: Viton / needle valve polyamide

Digital inputs:

4 dig. inputs/functions,
    e.g. start/cancel measurement,
    configurable measuring point switching;
    opto-coupler typ. switching threshold: 10 VDC,
    external power supply max. 24 VDC

Interfaces: RS 232, digital output of measured values ​​and program         updates
    optional: Profibus-DP/ CAN-Bus
    (CANopen device profile 401)
Measuring gas pump / valves: diaphragm pump / solenoid valve
    optional: measuring point switching, additional solenoid valves
    SSM 6000 Classic: second diaphragm pump

Display / meas. value displays: 4-char. LED meas. value display,
    status indicators for each value, 4-line LCD, illuminated,
    for each measured value

REQUIREMENTS FOR THE INSTALLATION SITE

 

Operating temperature:

+ 10 to + 40 °C

Rel. humidity:

<= 75% RH  annual average,
    mild, infrequent condensation while switched off is permitted

Storage temperature:

- 25 to + 50 °C

Compressed air pressure: 850 to 1,100 hPa
CONDITIONS AT MEASURING INPUTS AND OUTPUTS  
Input dew point for the gas being measured: without gas cooler,
    min. 5 K below the ambient temperature
    Optional: max. 40 °C when using meas. gas cooler
Pressure at inlet for measured gas:   -200 to +200 hPa
Output pressure of the gas being measured:

Exhaust air should be released under no pressure to outside.
    Use largest possible cross-section for exhaust.

 

 

ELECTRICAL SPECIFICATIONS

 

Power supply:  Mains power cable: 3 x 0.75 mm2
    with earthed plug

 

Fuses / overload protection:

2 x miniature fuses 4 x 20 mm (internal),
    1 A delay-action, 

Supply / inlet:

Discontinuous measurements:
85 to 264 VAC / 47 to 63 Hz
    Continuous measurements: 230 VAC / 50 Hz
    Optional: 115 VAC / 60 Hz

Power consumption: max. 100 VA depending on the device version

 

GAS CONNECTIONS  

 

Gas and condensate connections Type/version:

PA compression fitting
 for hoses with outer diameter x s = 6 x 1 mm

Gas inlet / safety mechanism
for wall-mount housing and ECO:

detonation safety barrier F 501
acc. to EN 12874/ATEX
    stainless steel V4A (outdoors installation)

COOLER for measured gas 
(optional for the wall-mount and tabletop housings)
 

 

Cooler type: Peltier cyclone cooler with Duran glass 

 

Inlet dew point / inlet temperature:

max. + 40 °C /+ 80 °C

Outlet dew point:

+5 °C (set at factory)

Condensate pump: Discontinuous measurements:
peristaltic pump at 54 ml/min, Novoprene tubing
    Continuous measurements:
peristaltic pump at 5 ml/min, Novoprene tubing

 

System monitoring:   

status indicators (LED),
alarms at +3 °C / +8 °C

 

 

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