© PCE Instruments
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5.3.4
Auto ramp output
•
Connect the test leads to the device as in Figure 5.1.
•
Press the output/input toggle button (3) so that the OUTPUT symbol appears on the
display. The device is now in an output state.
•
Press the STEP/AUTO button, the OUTPUT, OFF and 4mA symbols will be displayed.
The device is now in ramp mode.
•
Press the 25%/RAMP key again to change the type of output slope, which is displayed
at the lower left of the display. The types are displayed as
Ʌ S
,
,
Ʌ F
in the correct
order. These symbols indicate low-speed ramps and high-speed ramps, respectively.
The former has a maximum cycle of 60s, the latter has a maximum cycle of 30s, and
the auto-step ramp pauses for 5s at each step.
•
When the ON symbol is displayed, press the 100%/START button to start setting the
waveform output.
•
Press the 100%/START button again, the output will be paused at the current value
and the OFF symbol will be displayed.
•
Press the button again, to continue the stepped output from the paused value.
•
When the OFF symbol appears, press any of the buttons
▲, ▼, ◄, ► to return the
output to 0%. Then, the value of 4 mA will be displayed.
5.3.5
Simulating transmitter output (XMT)
•
Insert one end of the test lead to the XMT output jack of the device and connect the
other end with the input of the device as shown in Figure 5.2.
•
The key-operation is the same as that of the current output.
MAX
30V
30V
MAX
MAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT
+mA-
+
5--25VDC Power
Power
Figure 5.2
XMT output connection
Note
•
Range of power supply: 5 to 25VDC
•
Connect a 24V DC power supply to the device while operating the current output, to
prolong the working life of the battery.
