Tips and assistance 25
Tips and assistance
Questions and answers
Measuring instrument switches itself off or will not switch on?
· Rechargeable battery is low: charge battery or connect mains unit.
· On 327-2 models condensate trap is full, red lights indicate.
Battery capacity seems to be faulty?
· Rechargeable battery was repeatedly not fully discharged/charged: discharge rechargeable battery (until
measuring instrument switches itself off) and then charge fully.
---- appears instead of a reading?
· Sensor/probe is not plugged in: connect the sensor/probe
· Sensor/probe or measuring cell faulty: check sensor/probe or measuring cell.
Message: Pump flow rate too high?
· Gas outlet is blocked: make sure that the gas outlet is clear.
Message: ERROR + two-digit no. and service?
Device error: switch off the instrument and contact your dealer or Testo Customer Service.
Message Gas cell shutdown-threshold has been exceeded appears.
· The shutdown threshold of the CO sensor has been exceeded: Remove probe from flue.
If the above information does not solve the problem, please contact your dealer
or Testo Customer Service. For contact data, see back of this document or
web page www.testo.com/service-contact
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