Manual
14
(5) Waveform selection: here you can select between sine signal, rectangular signal, triangular
signal, clipped sine signal and custom signal.
(6) Custom signal: first, the user must compile a waveform in the PC und transfer this to the PCE-
789 (details can be found in the software manual).
5.5
DTMF (Dual Tone Multi-Frequency )
a) 0.1Vpp ~ 20Vpp, 0.3Hz ~ 20kHz, offset: -5V ~ +5V, % 0~100%, Phase: 0~360°
(1)
Turn on the device and push the slide switch to “Hz”. (press SELECT once to save this as an
initial setting).
(2) Press the SHIFT button to select the DTMF-mode.
(3) Press the S/M button to enter all the parameters for F1 and F2.
(4) Enter a value (incl. digits after the decimal point) and press ENTER.
(5) Connect the test leads or the crocodile clamps to the SOURCE jacks (red to red, black to black).
(6) Then connect the test leads or crocodile clamps to the object to be calibrated.
