Table 2-2. Calibration Procedure
TEST | TESTED | TEST POINTS |
| TEST SEQUENCE AND ADJUSTMENTS |
| EXPECTED | ||||
| VARIABLE |
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| RESULTS | ||||
Meter F/S | Meter Ref. | A2J3 pin 6 ( + ) | a. | Connect DVM across test points and turn on | 0.5V ± 50∝V | |||||
Adjust. | Voltage | M ( - ) |
| ac power. |
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| b. | Adjust A2R24 to obtain the voltage range |
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| specified in the results. |
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Resistance | Prog. Voltage | VP ( + ) | a. | Connect a 2KΩ 0.01%, ¼W programming | 2.5V ±4mV | |||||
Programming |
| P ( - ) |
| resistor and DVM between test points. |
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F/S |
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| b. | Set MODE switch as in Figure |
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Adjust. |
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| ac power. |
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| c. | Adjust A2R23 to obtain the voltage range |
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| specified in the results. |
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| VM ( + ) | a. | Set voltage and current controls to minimum | 0 ± 20∝V | ||||||
Zero |
| M ( - ) |
| settings. |
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Adjust. |
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| b. | Disable power supply as in Initial Setup step i. |
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| c. | Short circuit output terminals and connect the |
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| DVM between test points. Turn on power |
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| supply. |
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| d. | Adjust |
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| voltage range specified in the results. |
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Common | Residual | VM ( + ) | a. | Set voltage and current controls to minimum. | IR ± 20∝V | |||||
Mode | Output | M ( - ) | b. | Disable power supply as Initial Setup step i. |
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Adjust. | Voltage |
| c. | Turn on ac power and record the initial |
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| VM( + ) |
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| voltage (IR) with DVM across test points. |
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| d. | Remove the - S( + ) and – OUT( - ) and |
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| connect a 1Vdc power supply between - S( + ) |
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| and – OUT( - ). See Figure |
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| e. | Adjust A2R21 to the voltage range specified. |
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| f. | Remove the 1V supply and replace jumpers. |
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IM ( + ) | a. | Set voltage and current controls to minimum. | 0 ± 100∝V | |||||||
Zero |
| M | b. | Turn on ac power. | (6023A) |
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Adjust. |
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| c. | Connect DVM across test points and adjust | 0 | ± |
| ∝ |
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| 25 V | |||||
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| (6028A) |
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| results. |
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IM ( + ) | a. | Perform | IR* |
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F / S |
| M ( - ) |
| proceeding . |
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Adjust. |
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| b. | Connect a 0.001Ω 0.05% (6023A), 0.100Ω |
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| 0.05% (6028A) current monitoring resistor |
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| Rm across the output terminals. |
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| c. | Turn on ac power and using the “Display |
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| Setting”, set current control to 30A (6023A), |
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| 10A (6028A), and voltage control to 5V. |
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| d. | Connect DVM across test points and take an |
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| initial reading (IR). |
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| Rm ( + ) | e. | Connect DVM across Rm monitoring | 0.006 IR* | |||||
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| Rm ( - ) |
| terminals and adjust A2R9 as shown in the | +40∝V (6023A), | |||||
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| results. | 0.200 | ± | 1 | ∝ | ||
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| V | ||||
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| (6028A) |
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*IR = Initial Reading |
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12
