PROCEDURES | SENSOR ZERO/CAL |
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| Any error conditions encountered during calibration, for example the pres- | ||||||
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| ence of extraneous noise or RF signals, will result in an error message on | ||||||
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| the front panel display. |
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| The sensors can also be calibrated using the GPIB CAL command (see | ||||||
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| Chapter 6, GPIB Operation). |
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SENSOR ZERO/CAL | Sensors must be zeroed before being calibrated. The Zero/Cal function | |||||||
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| completes both operations in sequence. | ||||||
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| To zero and calibrate the sensor, connect the sensor to the ML2430A Se- | ||||||
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| ries 50 MHz, 0.0 dBm reference output connector labeled CALIBRATOR. | ||||||
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| When the sensor is first attached, the message SENSOR x NOT ZERO- | ||||||
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| ED (where x = A or B as appropriate) is displayed. | ||||||
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| Press the Cal/Zero front panel key and the Zero/Cal function key, then se- | ||||||
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| lect the appropriate sensor. The message changes to SENSOR x ZERO . | ||||||
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| . . Note that the power meter automatically switches the reference calibra- | ||||||
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| tor OFF during the zeroing operation. | ||||||
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| ML2430A |
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| Cal/Zero |
| Zero/Cal |
| Sensor A |
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| Sensor B |
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| Figure | ||||||
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| If only one sensor is connected, the | ||||||
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| zeroing process begins immediately. | ||||||
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| On successful completion of the zeroing operation, the calibration process | ||||||
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| begins. |
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| On successful completion of the calibration operation, the buzzer sounds and the | ||||||
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| message is cleared. |
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| If the sensor fails either operation, the message SENSOR x ZERO fail nxnnn or | ||||||
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| Sensor x Cal fail nxnnn is displayed. The hexadecimal error code 'nxnnn' indi- | ||||||
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| cates the reason for the failure. |
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| The sensors can also be zeroed and calibrated using GPIB commands (see | ||||||
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| Chapter 6,” GPIB Operation”). |
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PERFORMANCE | The performance of the Power Meter’s individual signal channel inputs can be | |||||||
| VERIFICATION | verified using an Anritsu ML2419A Range Calibrator. Refer to the ML2419A | ||||||
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| Range Calibrator Operation and Maintenance Manual | ||||||
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| instructions. |
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ML2430A OM | |
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