|BK Precision 290 Analog multimeter|
|Description:||Solid State Electronic Multimeter|
The B & K model 290 is a solid state FET input Electronic Multimeter ideally suited for radio and TV service? technicians, industrial users, engineers and hobbyists. Its main features include: • High input impedance (15 megohms) on both AC and DC voltage measurements for minimum circuit loading. • 50 millivolts full-scale sensitivity on both AC and DC volts. • Special low resistance ohms range (one ohm center scale). • Low voltage and normal voltage ohms tests for measuring resistances or for testing IC’s, transistors, SCR’s, etc. in or out-of circuit. • Full AC operation (no batteries) with regulated power supplies for ultra stable operation. • Protection from accidental overloads to meter, FET’s and other circuit elements. • Easy-to-read meter with mirrored scale for making exact measurements.
These manuals are available for the above equipment:
|BK Precision -- 290 -- Service and User Manual|
|Manual Type:||Service and User Manual|
|Size:||2.34 Mbytes (2450223 Bytes)|
|Quality:||Scanned document, all readable.|
|Upload date:||20 September 2017|
|Downloads:||185 since 20 September 2017|
GENERAL DESCRIPTION AND SPECIAL FEATURES ... 3 SPECIFICATIONS ... 3 OPERATING CONTROLS ... 6 OPERATING THE model 290 ... 6 Safety Precautions ... 6 Preparation for Making Measurements ... 7 Measuring DC Voltages ... 7 Zero Center DC Voltages ... 7 Measuring AC Voltages ... 7 dB Measurements ... 8 Measuring Resistances ... 10 Measuring AC Current ... 12 Measuring DC Current ... 13 Measuring DC Currents below 50 mA ... 13 CALIBRATION AND MAINTENANCE ... 14 CIRCUIT DESCRIPTION ... 17 WARRANTY SERVICE INSTRUCTIONS ... 19
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