B - Verification and Calibration

Steps 7-11 apply to Agilent 66309B/D output 2 only

7.Turn off the dc source and connect the DMM and current monitor to output 2 as shown in figure B-1A. Then turn on the dc source and select Output 2.

8.Set the output 2 voltage to 5 V and the current to 0 A. Press Output On/Off to enable the output.

Output current near 0 A.

9.

Divide the voltage drop across the current monitor by its resistance

Reading within low current limits

 

to convert the value to amperes. Record this value (I2lo).

(see table B-4)

10.

Set the output 2 current 1.5 A.

 

11.

Divide the voltage drop across the current monitor by its resistance

Readings within high current limits

 

to convert the value to amperes. Record this value (I2hi). Also

(see table B-4)

 

record the current reading on the front panel display (I2fphi).

 

Low Range Current Measurement (Agilent 66311B/D, 66309B/D only)

Action

12.Turn off and connect output 1 as shown in Figure B-1B using the 400 ohm load resistor. Set the DMM to operate in current mode.

13.Turn on the dc source, access the Input menu, and set the current range to LOW.

14.Set the output 1 voltage to 0 V and the current 3 A. Press Output On/Off to enable the output.

15.Note the current reading on the DMM (Ilrlo). Record the current reading on the front panel display.

16.Set the output 1 voltage to 8 volts.

17.Note the current reading on the DMM (Ilrhi). Record the current reading on the front panel display.

Normal Result

CURR:RANG LOW

Output current near 0 A.

Reading within low current

measurement (see table B-3, B-4).

Output current near +20 mA.

Reading within high current

measurement (see table B-3, B-4).

Current Sink Measurement

Action

18.Turn off the dc source and connect an external supply to output 1 of the unit as shown in figure B-1C using the 400 ohm load resistor. Set the DMM to operate in current mode.

19.Turn on the dc source, access the Input menu, and set the current range to LOW.

20.Access the Input menu and set the current sense detector to DC.

Normal Result

CURR:RANG LOW

CURR:DET DC

21.

Turn on the external supply and program it to 8 volts and 5 A. Program the dc source to 0 V and 1 A.

Press Output On/Off to enable the output.

Output current near −20 mA.

22.Note the current reading on the DMM (Isinklo). Record the current reading on the front panel display.

23.Access the Input menu and set the current range to HIGH.

24.Short out the load resistor by connecting a jumper across it.

25.Note the current reading on the DMM (Isinkhi). Record the current reading on the front panel display.

Reading within low current sink

measurement (see table B-2, B-3, B-4).

CURR:RANG HIGH

Output current approx. −2 A

Reading within high current sink

measurement (see table B-2, B-3, B-4).

150

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Agilent Technologies 66311B, 66111A Steps 7-11 apply to Agilent 66309B/D output 2 only, Current Sink Measurement, 150
Page 149 Page 151

66111A, 66309B, 66311B, D specifications

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