Sensonic 4000
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GENERAL INFORMATION
The
Sensonic 4000
is a multi-functional flue gas analyser. Electrochemical sensors are used for the
measurement of gas concentration. The instrument can be fitted with between 2 and 6 of these sensors. All
analysers are fitted with
O
2
and CO sensors, further gas cells must be chosen when the instrument is
ordered.
The following description is based on an analyser containing 3 cells, the third one being an NO sensor.
### Oxygen,
O
2
### Carbon monoxide CO
### Nitric oxide NO
### Carbon dioxide CO
2
### Nitrogen oxides NO
x
The first three gases (
O
2
, CO, NO ) are measured directly using the electrochemical cells. The remaining
components are calculated. The concentrations of oxygen and carbon dioxide are shown in percent. The
concentrations of the remaining gases is shown as follows:
### volume concentration in [ppm]
### absolute mass concentration in [mg/m
3
]
### mass concentration relative to the oxygen content in [mg/m
3
]
### mass concentration relative to the energy output in [mg/MJ]
In addition, the air inlet or ambient temperature and flue gas temperature are measured. Using the measured
temperatures, gas concentrations and the known fuel parameters the analyser calculates a variety of
combustion parameters such as Stack Loss - SL, Efficiency -
, Excess Air -
, Loss through Incomplete
Combustion - IL.
The
Sensonic 4000
also measures differential pressure.. This can be used to measure the draught or
pressure in the flue gas channel and, using an appropriate Pitot tube, the flow velocity of the gases. The
instrument is also equipped for the soot test according to Bacharach.
The analyser is also fitted as a 3 channel data logger, capable of measuring a voltage or current channel
together with two temperatures using a variety of thermocouples and thermoresistors.
The instrument can be used at as broad range of ambient temperatures (0 - 50°C). It is fitted with a
rechargeable battery making it independent of the mains power supply.
Hence, the
Sensonic 4000
is ideally suited for all those involved in the construction, maintenance and
adjusting of heating systems.
The keyboard of the instrument can be wiped clean if necessary.
The Sensonic 4000
is controlled by a microprocessor. The easy-to-read LCD display, the comprehensive
keyboard and the built-in printer allow the operator to communicate with the instrument easily and to
document the measurements on the spot. The EEPROM memory used in the
Sensonic 4000
allows large
quantities of data to be stored without fear of data loss should the instrument be switched off or should the
battery be accidentally run down. The
Sensonic 4000
comes complete with programmed data for the 16
most common fuels. A further 10 fuels can be programmed by the operator to cover all eventualities.
The RS232C interface fitted to the
Sensonic 4000
allows all stored data to be read for later treatment or the
instrument can be used on-line with the computer.
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