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Testo Solutions >> Flue Gas Analysis >> Testo 340
  Testo 340
  testo 340 for emission measurement in industry!
 
 
Best support in flue gas analysis
You are flexible, and decide which parameters to measure depending on the measurement requirements of the system.
The testo 340 is equipped with an O2-Sensor as standard.
Three slots are available to you for different gas measurement parameters. This means you can select freely from CO, COlow, NOlow, NO2 or SO2. You need no additional sensors for different - measuring ranges that lowers costs!
 
Automatic measuring range extension
The measuring ranges of your CO-, COlow-, NO-, NO2- or SO2-sensor is increased 5 times by automatic measuring range extension. At high gas concentrations the sensor is then not stressed any more than it would be at low concentrations. As an option, the measuring ranges of all the sensors in the Analyser can be extended simultaneously by a factor of 2.
You save time, as the automatic sensor protection allows you to carry out unrestricted measurements. In order to protect the sensor, the measuring range extension (dilution) is automatically activated at unexpectedly high gas concentrations.
 
The right flue gas sampling probe for every measurement task
Bigger selection...
Different probe shaft lengths, diameters and temperature ranges ensure high flexibility for all applications. To change, the probe shaft is simply attached to the probe handle and snaps into place. Special flue gas probes for industrial engines are designed for positive pressure at the measurement site and also makes measurements in the toughest conditions possible. In addition, modular industrial probes are available for rugged process conditions.
  Measuring range Accuracy Resolution Response
time
O2 measurement
0 to 25 Vol. % 0.2 Vol. % 0.01 Vol.% t90< 20 sec
CO measurement
(H2 compensated)
0 to 10.000
ppm

10 ppm or 10% of mv
(0 to 200 ppm)
20 ppm or 5% of mv
(201 to 2.000 ppm)
10% of mv (2.001 to 10.000 ppm)

1 ppm t90< 40 sec
COlow measurement
(H2 compensated)
0 to 500 ppm

2 ppm (0 to 39.9 ppm)
5% of mv (remaining range)X

x data corresponds to 20C ambient temperature.
Additional temperature coefficient 0.25% of reading/K.

0.1 ppm t90< 40 sec
NO-measurement 0 to 3.000 ppm 5 ppm (0 to 99 ppm)
5% of mv (100 to 1.999 ppm)
10% of mv (2.000 to 3.000 ppm)
1 ppm t90< 30 sec
NOlow measurement 0 to 300 ppm 2 ppm (0 to 39.9 ppm) 5% of mv
(remaining range)
0.1 ppm t90< 30 sec
NO2 measurement* 0 to 500 ppm 10 ppm (0 to 199 ppm)
5% of mv (remaining range)
0.1 ppm t90< 40 sec
SO2 measurement* 0 to 5.000 ppm 10 ppm (0 to 99 ppm)
10% of mv (remaining range)
1 ppm t90< 40 sec

Temperature measurement
Fhlertyp Typ K
(NiCr-Ni)

-40 to +1.200C 0.5 C (0 to +99 C)
0.5 % of mv (remaining range)
0.1 C
Draught measurement -40 to+40 hPa 0.03 hPa (-2.99 to +2.99 hPa)
1.5 % of mv (remaining range)
0.01 hPa  
Differential pressure
measurement
-200 to +200 hPa 0.5 hPa (-49.9 to 49.9 hPa)
1.5 % of mv (remaining range)
0.1 hPa
Absolute pressure
measurement
600 to +1.150
hPa
10 hPa 1 hPa

Derived parameters

Efficiency

Flue gas loss

Flue gas dewpoint

 

0 to 120 %

0 to 99.9 %

0 to 99.9 C

 

 

 

0.1 %

0.1 %

0.1 C


CO2 measurement
(calculation from O2)

 

0 to CO2 max.

 

0.2 Vol. %

 

0.1 Vol. %

Response time
t90 = ? 40 s

*To avoid absorption, a maximum measurement duration of 2 hours should not be exceeded.

Measuring range extension

Single dilution, factor 5 (standard)
CO measurement
(H2 compensated)

Meas. range
Accuracy
Resolution

700 ppm to 50.000 ppm
10 % of mv (additional error)
1 ppm

COlow measurement
(H2 compensated))
Meas. range
Accuracy
Resolution
300 ppm to 2.500 ppm
10 % of mv (additional error)
0.1 ppm
NO-measurement Meas. range
Accuracy
Resolution
500 ppm to 15.000 ppm
10 % of mv (additional error)
1 ppm
NOlow measurement Meas. range
Accuracy
Resolution
150 ppm to 1.500 ppm
10 % of mv (additional error)
0,1 ppm
SO2 measurement Meas. range
Accuracy
Resolution
500 ppm to 25.000 ppm
10 % of mv (additional error)
1 ppm

Dilution of all sensors, factor 2 (option, Part no. 0440 3350)

O2 measurement
With measuring range extension switched
on over all sensors:

Meas. range
Accuracy

Resolution
0 to 25 vol.%
Accuracy: 1 vol.% additional error (0 to 4.99 vol.%)
0.5 vol.% additional error (5 to 25 vol.%)
Resolution: 0.01 vol.%
CO-Messung
(H2-kompensiert)
Meas. range
Accuracy
Resolution
700 ppm to 20.000 ppm
10 % of mv (additional error)
1 ppm
CO measurement
(H2 compensated)
Meas. range
Accuracy
Resolution
300 ppm to 1.000 ppm
10 % of mv (additional error)
0.1 ppm

NO-measurement

Meas. range
Accuracy
Resolution
500 ppm to 6.000 ppm
10 % of mv (additional error)
1 ppm

NOlow measurement

Meas. range
Accuracy
Resolution
150 ppm to 600 ppm
10 % of mv (additional error)
0.1 ppm

NO2 measurement

Meas. range
Accuracy
Resolution
200 ppm to 1.000 ppm
10 % of mv (additional error)
0.1 ppm

SO2 measurement

Meas. range
Accuracy
Resolution

500 ppm to 10.000 ppm
10 % of mv (additional error)
1 ppm

General technical data

Memory Maximum
Per folder
Per site
The max. number of logs is determined by the number of folders or sites.
100 folders
Max. 10 sites
Per site Max. 200 logs
Regulated diaphragm pump Pump flow
Hose length

Max. pos. pressure/ flue gas
Max. neg. pressure/ flue gas
0.6 l/min (regulated)
max. 7.8 m
(corresponds to two probe hose extensions)
+50 mbar
-200 mbar
User-defined
fuels

10 user-defined fuels incl. test gas as fuel
Weight 960 g
Dimensions 283 x 103 x 65 mm
Storage temp. -20 to +50 C
Oper. temp. -5 to+50 C
Display Graphic display 160 x 240 pixels
Power supply Battery block 3.7 V / 2.4 Ah
Mains unit 6.3 V / 2 A
Material/Housing TPE PC
Protection class IP40
Warranty Analyser:


Rech. batt.:
Sensors:
CO, NO, COlow, NOlow, NO2, SO2
O2
2 years (excluding working parts, e.g. sensors, sensor replacement filter)

1 year

1 year
1,5 years