Technical data

Calibrator Output Operations 2

U1401A User’s and Service Guide 37

4 After selecting the required function, press or

to select one of two modes: Continuous or Cycle. The

secondary display will indicate Cont or CyCLE, respectively

(Figure 2- 4 on page 38).

• Continuous mode (Cont): In this mode, the ramp signal is

repeated continuously. The signal will be generated

according to the amplitudes and number of steps

defined in the memory, with each step taking

approximately 0.33 seconds. For instance, according to

the default settings (Table 2- 2), the step size of the

positive slope is (end amplitude – start

amplitude)/number of steps. Therefore, the step size is

(1.5 V – (–1.5 V))/15 steps = 0.2 V for

±1.5000 V.

The step size of the negative slope is (start amplitude –

end amplitude)/number of steps. Therefore, the step

size is (–1.5 V – 1.5 V)/15 steps = –0.2 V for

±1.5000 V.

• Cycle mode (CyCLE): In this mode, only one cycle of the

ramp signal is generated. The signal will be generated

according to the amplitudes and number of steps

defined in the memory, with each step taking

approximately 0.33 seconds, and then the output

amplitude will be maintained at the final value of the

ramp signal.

5 Press OUTPUT to start the source output. The

annunciator will appear on the display.

Table 2 - 2 Default settings for the autoramp output

Mode ±1.5000 V ±15.000 V ±25.000 mA

Position Amplitude Resolution Amplitude Resolution Amplitude Resolution

Start –1.5000 V 015 steps –15.000 V 015 steps –25.000 mA 025 steps

End +1.5000 V 015 steps +15.000 V 015 steps +25.000 mA 025 steps