2 Connection and commissioning 2.4.3 Test probe After connecting a probe to the probe connector, a self-test is automatically started. The digital part, the analog part and the measuring sensors of the probe are checked for correct function. If a fault is detected that could affect the measurement, a corresponding message is displayed and measurements are not possible. WA RNING Due to a defective probe, any high radiation levels that may be present cannot be de - tected. Observe the information displayed during and after the self-test of a probe. If there is any doubt about the correct functioning of the probe, a suitable test source can be helpful to check the probe.
In order to make the correct probe selection, you should always obtain knowledge of the expected frequency and field strength before starting a measurement Probe is not working properly EN 2.5 Initial commissioning 2.5.1 Switch on the device ATTENTION Damage to a device covered in dew during commissioning A device stored or transported at low temperatures may become covered in dew when brought into a warm room. If it is put into operation in this condition, it may be dam - aged. To prevent damage, wait until all dew on the surface of the device has evaporated. The device is not ready for operation until it has reached the operating range of ‒20 to +50 °C. Narda FieldMan 31