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TESTO 340 User Manual

TESTO 340
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J. Questions and answers
This chapter gives answers to frequently asked questions.
Question Possible causes Remedy
Measuring instrument keeps AutoOff function is switched on. Switch AutoOff function off
switching itself off or (see
AutoOff
, p. 29).
instrument will not switch on. Battery spent. Charge rech. battery or connect mains unit
(see
Operation
, p. 15).
Measuring instrument will Battery spent. Charge rech. battery or connect mains unit
not switch on. (see
Operation
, p. 15).
Display of the battery capacity Battery was often not fully discharged/ Discharge rechargeable battery fully (until
appears faulty charged. instrument switches off by itself) and then
charge fully.
Failure report: Gas output closed. Ensure that gas output is free
Pump flow rate to high
Message: The shutdown threshold of a Remove probe from flue.
Gas cell shutdown-thres- sensor has been exceeded
hold has been exceeded
Failure report: · With printer 0554 0543: The wrong interface Activate correct interface
Printing not possible is activated. (see
Communication
, p. 30).
· The wrong printer is activated. Activate correct printer
(see
Printer
, p. 28).
· Printer is switched off. Switch printer on.
· Printer is out of wireless range. Place printer within wireless range.
If we could not answer your question, please contact your dealer or Testo Customer
Service. For contact data, see back of this document or web page www.testo.com/ser-
vice-contact
J.Questions and answers
49

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TESTO 340 Specifications

General IconGeneral
CO measurement range0 to 10, 000 ppm
NO measurement range0 to 3, 000 ppm
NO2 measurement range0 to 500 ppm
SO2 measurement range0 to 5, 000 ppm
Resolution CO1 ppm
Resolution NO1 ppm
Resolution SO21 ppm
Resolution H21 ppm
Resolution Differential Pressure0.01 hPa
Resolution Flow Velocity0.1 m/s
Resolution Temperature0.1 °C
Power SupplyRechargeable battery
Protection ClassIP40
Measurement ParametersO2, CO, NO, NO2, SO2, CO2, CxHy, Temperature, Draft, Pressure
O2 measurement range0 to 25%
Temperature measurement range-20 to 1, 200 °C
Resolution CO20.1%
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
DisplayLCD
Operating Temperature-5 to +45 °C
Storage Temperature-20 to +50 °C

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