EFA-200/-300 7 Measurement data memory
7-3
7.1.2 Recording timer-controlled measurement sequences
(AUTO)
Timer-controlled storage of data allows you to record the measured values
over a defined time period in Field Strength and Exposure STD modes.
The B-Field Unit and the E-Field Unit operate independently during
recording of a timer-controlled test series. You can disconnect the E-Field
Unit from the B-Field Unit at any time after you have initiated an E field
measurement.
Note: If you perform a timer-controlled B field measurement using the B-
Field Unit, the measurement series will be terminated as soon as
you connect the E-Field Unit to the B-Field Unit. An audible signal
will be heard.
Ensuring power supply for the recording period
Timer-controlled measurements generally run over a longer time interval. If
a stepsize of at least 1 minute is chosen, the device goes into Stand By
mode between two measurements. In this mode, very little power is
consumed. Only the actual measurement uses power. However, the battery
capacity still might be insufficient for the recording period.
Note: Changes in field strength that occur between measurements are
not detected in standby mode.
Guideline values for fully charged batteries:
• Measurement time: 24 hours
Step width: 1 minute
Maximum number of measured values: 1440
– or –
• Number of measured values recorded: 4095
Step width: 10 seconds
Resulting measurement time: 11.3 hours
⇒ For long-term measurements or long recording intervals, make sure the
batteries are fully charged.
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