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General| Brand | HP |
|---|---|
| Model | 400EL |
| Category | Measuring Instruments |
| Language | English |
General safety precautions for operation, service, and repair.
Importance of connecting chassis to electrical ground for shock hazard prevention.
Warning against operating in flammable gases or fumes.
Caution against removing covers and servicing alone.
Advise against attempting service without aid.
Warning against unauthorized modifications and substitutions.
Explanation of warning symbols preceding hazardous procedures.
Procedures for accuracy, frequency response, range tracking, and general calibration.
Detailed troubleshooting, component checks, and factory component adjustments.
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