Bacharach Gas Pup Instrucciones de operaciones Pagina 10
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GENERAL INFORMATION GA-40 T plus
10
3 GENERAL INFORMATION
The GA-40 T plusplus is a multi-functional flue gas analyser. Electrochemical sensors are used for the
measurement of gas concentration. The instrument can be fitted with between 3 and 6 of these sensors. All
analysers are fitted with O
2
, CO and NO 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.
G Oxygen, O
2
G Carbon monoxide CO
G Nitric oxide NO
G Carbon dioxide CO
2
G 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:
G volume concentration in [ppm]
G absolute mass concentration in [mg/m
3
]
G mass concentration relative to the oxygen content in [mg/m
3
]
G 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 -
η
, Excess Air -
λ
, Loss through Incomplete
Combustion - IL.
The GA-40 T plusplus 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 6 channel data logger, capable of measuring two voltages or current channels
together with four 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 GA-40 T plusplus 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-40 T plusplus 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 GA-40 T plusplus 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 GA-40 T plusplus 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 GA-40 T plusplus allows all stored data to be read for later treatment or the
instrument can be used on-line with the computer.
- FLUE GAS ANALYSER 1
- GA-40T plus 1
- GA-40 T plus 5
- 1 INTRODUCTION 7
- 2 MAINTENANCE 8
- 3 GENERAL INFORMATION 10
- 4 CONSTRUCTION 11
- 4.2.6 Analogue inputs 12
- 4.2.7 Analogue outputs 14
- 4.3.1 Keyboard 14
- 4.3.4 Printer 15
- 4.3.5 Interface RS 232C 15
- 4.3.2 Warning lights 15
- 4.3.3 Display 15
- 4.4 Power supply 16
- 5 OPERATION 17
- 5.1.3 Entering Numbers 18
- 5.1.4 Editing Text 18
- 5.2.2 Switching on 19
- 5.2.4 Initial Calibration 20
- 5.2.5 Measurement Parameters 20
- Á - choose SELECT FUEL 21
- À - back to option FUEL 22
-  and à - select min or sec 23
- Á - call the next screen 24
- 5.3.2 Averaged Values 25
- 5.3.3 The Averaging Process 26
- 27
- 5.6 Graphic 28
- 0 m/s 30
- Á - select option 31
- Á - select the option 33
- Á - select the gas 34
- 5.9.3.5 Language/Country 37
- 5.9.3.6 Acoustic Warning 37
- 5.10 Storing of Results 38
- Á -select option REPORTS 39
- 5.10.1.4 Erasing Reports 42
- (5.2.5.2) 43
- 5.11 Data-Logger 44
- 5.12 Printer 45
- m a d u r GA-40 T plus 46
- 19.12.93 13:23.41 46
- 6.7 Fuel parameters 51
- 7 BLOCK DIAGRAM 53
- 8 FRONT VIEW WITH KEYBOARD 54
- 9 MENU STRUCTURE 55
- [.] [.] [.] 56
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