TESTO 340 User Manual

General notes
Please read this documentation through carefully and familiarise yourself with the opera-
tion of the product before putting it to use. Keep this document to hand so that you can
refer to it when necessary.
This document describes the country-specific version
GB
of the testo 340 measuring
instrument.
Identification
Symbol Meaning Comments
Warning advice: Warning! Read the warning advice carefully and
Serious physical injury could be caused if the specified take the specified precautionary measures!
precautionary measures are not taken.
Warning advice: Caution! Read the warning advice carefully and
Slight physical injury or damage to equipment could take the specified precautionary measures!
occur if the specified precautionary measures are not
taken.
Important note. Please take particular notice.
Text Text appears on the instrument's display -
Key Press the key.
Function key with the function “OK”. Press function key.
 xyz Short form for operating steps. See Short form ,p.3.
OK
General notes
2

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