Tabor Electronics 9100A User Manual
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Contents
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9100A/9200A/9400Maintenance and Performance Checks 3-15RequiredEquipmentRecommended equipment for calibration is listed in Table 3-1.Instruments other than those listed may be used only if theirspecifications equal or exceed the required minimal characteristics.Also listed below are accessories required for calibration.Initial Checks Proper calibration depends on healthy functionality of the 9400. Theseinitial checks are performed with the cover removed so take extraprecautions not to touch components or metal parts inside the 9400.Always turn the power off and remove the power cord from the rearpanel Mains receptacle, if you are not sure or feel safe with any partyou are about to touch.Before you perform the adjustments, verify that the 9400 operateswithin the following conditions:1. Turn Power on and observe that the power light turns on and thefan is rotating and blowing air. Air is normally circulated from theinside of the box.2. Identify C105. Using a DMM measure the voltage drop across thiscapacitor. Measurement should verify 12 Vdc, ±5%3. Lift the front panel high voltage protection latch and turn on thehigh voltage. Note that the High Voltage light turns on.4. Identify C38, C65, C84 and C110. Using a DMM measure thevoltage drop across these capacitors. Measurement should verify218 Vdc, ±2%5. Identify C37, C83, C63 and C109. Using a DMM measure thevoltage drop across these capacitors. Measurement should verify -218 Vdc, ±2%6. Close the covers and allow the 9400 to stabilize its operatingvoltage conditions.CalibrationProceduresUse the following procedures to calibrate the Model 9400. Thefollowing paragraphs show how to set up the instrument for calibrationand what the acceptable calibration limits are. Calibration must beperformed with the high voltage turned on. To turn the high voltage on,lift the protective latch and flip the high voltage switch ON.Gain Adjustment Equipment: Waveform Generator, DMM, Load Resistance, 50Ωfeedthrough terminatorPreparation (use the same procedure for channels 1 through 4):1. Configure the DMM as follows: |
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