Technical data

Application Examples 5
U1401A User’s and Service Guide 113
2-Wire Transmitter Verification
You can use the following method to verify the operation of
a 2- wire transmitter. The method takes advantage of the
ability of this instrument to simultaneously source voltage
and measure current.
1 Turn the rotary switch to / position.
2 Connect the red alligator lead between the positive output
terminal of the instrument and the positive output
terminal of the two- wire transmitter. Refer to Figure 5- 16
on page 114.
3 Connect a shorting plug between the negative output
terminal and negative input terminal of the instrument.
4 Connect the black alligator lead between the positive
input terminal of the instrument and the negative output
terminal of the two- wire transmitter.
5 The supply can be set to any voltage up to +15 V.
6 Press OUTPUT to output the excitation voltage.
7 The instrument display will indicate a transmitter output
current if an input signal is present.