Agilent Technologies E3615A, E3614A, E3617A, E3616A service manual Current Monitoring

		Figure 6
Set the CC switch down, and all others up.
Iin = 1/A x Iout
Iout = A x Vin
Where	Iout is the power supply output current in amps.
	Iin is the programming current in μamps.
	A is the gain.
	Model		A (A/μA)	1/A (μV/A)
	E3614A		0.055	18
	E3515A		0.0278	35.9
	E3616A		0.0158	63.4
	E3617A		0.00928	108

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)	1/A (mA/A)	Parallel resistor required for a
			1 amp/mamp value of A (kohm)
E3614A	0.594	1.69	1.7
E3515A	0.297	3.37	3.45
E3616A	0.168	5.95	6.28
E3617A	0.0989	1.01	11.2

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	Resistor	amps/V
	value (Ω)
E3614A	0.1	10
E3515A	0.2	5
E3616A	0.6	1.67
E3617A	0.89	1.12

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