Martel Electronics IVC-222HPII - Manual (Page 7)

conditions will not harm the calibrator but
will cause the battery to decay. Maximum
short circuit is 25 mA.
Figure 1
IVC-222HPII operating as a Precision Voltage
Source
2. In the current mode, the maximum load
driving capacity of the IVC-222HPII is 1000
ohms. If connections to the mA jacks are
open or the load is greater than the
compliance voltage while trying to source a
current, the word “OPEN LOOP” will
appear intermittently on the LCD readout.
(See Figure 2)
Figure 2
IVC-222HPII operating as a Current Source
3. Current loop devices that derive their power
supply from an external power supply can
be calibrated as shown in Figure 3.
5
+ − + −
mA Volts
Unit
Under
Test
Max. Load
1 mA
(+)
(–)
+ − + −
mA Volts
Unit
Under
Test
(+)
(–)
O to 24mA
up to
1000 ohms