Agilent Technologies L4400 manual Analog Output Verification Test, Current Output Verification

L4451A and L4452A Calibration Procedures A

		L4451A Terminal Block
twist	wires	DMM
	HI	HI
	LO	LO
		I
Output Voltage verification

Figure A-2. L4451A Output Voltage Connections.

Analog Output Verification Test

This procedure is used to check the calibration of the current and voltage outputs on the L4451A 4- channel DAC. Verification checks are performed only for those output values with unique calibration constants.

Current Output Verification

1With the DMM disconnected from the L4451A, set the DMM to the 100mA range or the lowest range that can measure 20 mA (do not use autorange).

2The DMM reading is the current offset for the selected range. If the DMM has “null” capability, turn it on at this time. Otherwise, record the offset which will be subtracted from the subsequent current measurements.

3Connect channel 1 of the L4451A as shown in Figure A- 1. Configure the L4451A to output the currents listed in Table A- 2. For each current level measured, subtract the current offset recorded in Step 2 as applicable. The results should be within the limits listed in Table A- 2.

4Repeat Step 3 for L4451A channels 2, 3, and 4.

L4400 User’s Guide 255