Tequipment Agilent E361 Serie Manual De Funcionamiento Y Servicio página 38

Set the CC switch down, and all others up.
I = 1/A x I
in out
I = A x V
out in
Where I is the power supply output current in amps.
out
is the programming current in µamps.
I
in
A is the gain.
Model
E3614A
E3515A
E3616A
E3617A
Programming currents can be increased by adding a resistor across the CC+ and CC-. A
10 volts drop across R1 represents full scale current of the power supply. When a 1 kohm
resistor is added across R1, the programming currents are as follows with the
programming current in mA.
Model A (A/mV)
E3614A 0.594
E3515A 0.297
E3616A 0.168
E3617A 0.0989
Current Monitoring
Current of the power supply can be monitored across the internal current monitoring
resistor. One side of the resistor is at the +output and A3; the other side of the resistor
is at A1. The table below shows the resistor value and conversion factors. To obtain
the current divide the measured voltage by the resistor value or multiply the amps/V
times the voltage measured.
Model
E3614A
E3515A
E3616A
E3617A
Figure 6
µ
A (A/ A)
0.055
0.0278
0.0158
0.00928
1/A (mA/A)
1.69
3.37
5.95
1.01
Resistor
Ω
value ( )
0.1
0.2
0.6
0.89
1-10-5
µ
1/A ( V/A)
18
35.9
63.4
108
Parallel resistor required for a
1 amp/mamp value of A (kohm)
1.7
3.45
6.28
11.2
amps/V
10
5
1.67
1.12