Manualshelf

Instructions

ManualsBrandsChauvin Arnoux ManualsEM Radiation TestersChauvin Arnoux C.A 43 HF EM radiation tester Calibrated to Manufacturer's standards (no certificate)
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5.1 HOLD THE DIGITAL DISPLAY
One press on HOLD allows you to hold the digital display on the last measurement dis-
played whilst the analogue display continues to indicate the instantaneous value of the measurement.
The display indicates . Pressing HOLD again resets the instrument to instantaneous measurement
mode and disappears from the display.
5.2 SMOOTH MEASUREMENTS
A rst press SMOOTH triggers smoothing of the measurement (SMOOTH displayed). The digital value
shown is then the result of a sliding average calculated over the last 10 measurements (i.e. approx 4
seconds).
The bargraph still shows the instantaneous measurement. A second press on SMOOTH cancels the lter
and the SMOOTH symbol disappears.
The smoothed measurement value is constantly calculated. This allows you to obtain the result of the
ltering as soon as the button is pressed.
5.3 MEASUREMENT «PEAK» VALUES
The PEAK function allows you to make measurements with an acquisition speed of 1ms for peak
measurements.
The 50 Hz lter for rejection of low frequency elds is suppressed. The C.A 43 becomes sensitive to the
power supplies of electric equipment, mains cable runs, ...
A rst press on PEAK switches On the function and the PEAK symbol appears on the display.
- The bargraph indicates the average value of the four highest peak values measured over 100 ms.
- The digital display indicates the average value of four measurements on the bargraph. This corresponds
to the average of the 16 peak values measured over 400 ms.
A second press on PEAK cancels the fast acquisition and the PEAK symbol disappears.
This function allows you to measure the depth of modulation of the amplitude of an AM signal.
When the frequency modulation is less than 1 kHz and of constant amplitude, the ratio Normal
measurement / Peak measurement gives the modulation percentage.
5.4 RECORDING MIN, MAX AND AVG
The MIN MAX function allows you to record the minimum, maximum and average values of the
measurements. A short press (less than 2 seconds) on MIN MAX sets the instrument to record mode
(the RECORD and symbols light up).
MIN value
As soon as MIN MAX has been pressed the value displayed is allocated to the MIN register.
Each time a measurement is less than that contained in the register, it is transferred to the MIN
register and a beep is emitted.