TESTO 340 User Manual

Content
See also Functional overview , p. 60.
General notes ........................................................................................2
Content ..................................................................................................4
A. Safety advice ........................................................................................7
B. Intended purpose ..................................................................................9
C. Product description ............................................................................10
C.1 Measuring instrument ..................................................................10
C.1.1 Overview ..................................................................................10
C.1.2 Keypad ....................................................................................11
C.1.3 Display ....................................................................................11
C.1.4 Instrument connections ............................................................12
C.1.5 Interfaces ................................................................................13
C.1.6 Components ............................................................................13
C.1.7 Carrying strap ........................................................................14
C.2 Modular flue gas probe ................................................................14
D. Commissioning ....................................................................................14
E. Operation ............................................................................................15
E.1 Mains unit/rechargeable battery ..................................................15
E.1.1 Changing the battery ..............................................................15
E.1.2 Charging batteries ....................................................................16
E.1.3 Operation with the mains unit ..................................................16
E.2 Probes/sensors ..........................................................................17
E.2.1 Connecting probes/sensors ....................................................17
E.2.2 Replacing the probe module ....................................................18
E.3 Regular care ................................................................................18
E.3.1 Condensate trap ......................................................................18
E.3.2 Checking/replacing the particle filter ........................................19
Content
4

TESTO 340 Specifications

General

CO measurement range	0 to 10, 000 ppm
NO measurement range	0 to 3, 000 ppm
NO2 measurement range	0 to 500 ppm
SO2 measurement range	0 to 5, 000 ppm
Resolution CO	1 ppm
Resolution NO	1 ppm
Resolution SO2	1 ppm
Resolution H2	1 ppm
Resolution Differential Pressure	0.01 hPa
Resolution Flow Velocity	0.1 m/s
Resolution Temperature	0.1 °C
Power Supply	Rechargeable battery
Protection Class	IP40
Measurement Parameters	O2, CO, NO, NO2, SO2, CO2, CxHy, Temperature, Draft, Pressure
O2 measurement range	0 to 25%
Temperature measurement range	-20 to 1, 200 °C
Resolution CO2	0.1%
Accuracy CO	±5 ppm or ±5% of reading
Accuracy NO	±5 ppm or ±5% of reading
Accuracy NO2	±5 ppm or ±5% of reading
Accuracy SO2	±5 ppm or ±5% of reading
Accuracy O2	±0.2%
Accuracy CO2	±0.5%
Accuracy H2	±5 ppm
Accuracy Differential Pressure	±0.03 hPa
Accuracy Temperature	±0.5 °C
Display	LCD
Operating Temperature	-5 to +45 °C
Storage Temperature	-20 to +50 °C