YOKOGAWA HANDY CAL CA51, Руководство пользователя

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4-16
IM CA71-E
4.5.3 Using the Contact Output
You can turn on or off the output terminals. This setting is possible for
both the mode of sourcing a continuous pulse train and the mode of
sourcing a given number of pulses. An FET is used as the contact
switching device. Since the way of using the contact output is the same
for both the source of continuous pulse trains and the source of a num-
ber of pulses, this subsection only refers to the procedure for continu-
ous pulse trains.
Step 1: Using the function selector switch, select . The LCD
shows the default frequency .
Step 2: Using the key, set the frequency range. Each press of
the key cycles through the 500.0 Hz, 1000 Hz and 10
kHz options.
Step 3: Set the output value digit by digit using each pair of and
output setting keys.
Each pair of
and keys corresponds to each digit of the
LCD reading. Each press of the or key increases or
decreases the digit. Increasing the digit from 9 or decreasing
it from 0 causes the digit to overflow or underflow, allowing
you to set the output value without interruption. Holding down
the or key continuously changes the digit in question.
Pressing the key initializes the output setpoint to the de-
fault value (differs depending on the frequency range).
Step 4: Pressing the key once switches to amplitude setting
mode. The LCD provides a reading of .
Step 5: Changing the reading of to with the key causes the
calibrator to enter contact output mode.
Step 6: Press the key once again to show on the LCD.
Then, press the key one more time to revert to fre-
quency setting mode.
4.5 Sourcing Pulse Signals