Madur GA-21 Plus, Operating Manual

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www.madur.com Manual GA-21Plus
parameters the analyser calculates a variety of combustion parameters such as Stack
Loss – SL, Efficiency -

, Excess Air -

, Loss through Incomplete Combustion – IL.
The GA-21 plus also measures differential pressure.. This can be used to meas-
ure the draught or pressure in the flue gas channel. The instrument is also equipped for
the soot test according to Bacharach method.
The analyser is also fitted as a 3 channel data logger, capable of measuring
voltage or current together with temperature using thermocouples or thermistors.
The instrument can be used at a 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 GA-21 plus 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 GA-21 plus is controlled by a microprocessor. The easy-to-read LCD dis-
play, the comprehensive keyboard and the built-in printer allow the operator to communic-
ate with the instrument easily and to document the measurements on the spot. The EEP-
ROM memory used in the GA-21 plus allows large quantities of data to be stored without
fear of data loss should the instrument be switched off or should the battery be accident-
ally run down. The GA-21 plus comes complete with programmed data for the 18 most
common fuels. A further 10 fuels can be programmed by the operator to cover all eventu-
alities.
The RS232C interface fitted to the GA-21 plus 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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