Martel Electronics DPC300A - Manual (Page 19)

17 17
3. This selection can only be made in the lower display. Also, in
source mode, the calibrator will generate 0 ... 24 mA using its own
internal 24 V supply, whereas in simulation mode the calibrator
acts as a 2-wire transmitter and requires an external 24 V supply.
4. Pressing any of the arrow keys will start the output mode and
enable you to use the arrow keys to adjust the mA output. The
function keys can also be used to progress the output in either 25
% steps (4, 8, 12, 16, 20 mA) or 0 % (4 mA) and 100 % (20 mA).
5. While in the mA output mode, if the loop is broken or the
resistance burden is exceeded, the calibrator will flash "OL".
PUMP
Test Item 4...20 mA
mA MEASURE
CONFIG LOWER MORE
16.000 mA
75.00%
J1 J2 J3
COM
VOLTS /mA
SWITCH TEST +24v DC
PUMP
Test Item 4...20 mA
mA SOURCE
MENU LOWER LIGHT
20.000 mA
100.00%
J1 J2 J3
COM
VOLTS /mA
SWITCH TEST +24v DC
J1 J2 J3
COM
VOLTS /mA
SWITCH TEST +24v DC
PUMP
4...20 mA
mA SIM-2W
MENU LOWER LIGHT
20.000 mA
100.00% Test Item
Power Supply
+ –
+
–
J1 J2 J3
COM
VOLTS /mA
SWITCH TEST +24v DC
DC 24 V
PUMP
4...20 mA
mA MEAS/24V
MENU LOWER LIGHT
20.000 mA
100.00%
Test Item
4.4 Measuring voltage
For voltage measurement, use the connections on the front of the
calibrator. Select the VOLTS function on one of the displays. The
calibrator can measure up to DC 30 V.