The HP 3490A is a 5-digit, autoranging, fully-guarded, integrating Multimeter with self-test capability. The most sensitive DC range is 100 mV full scale, giving the instrument 1 µV resolution. Accuracy is better than 0.01% of reading and the voltmeter overranges to 20% above full scale on all ranges except the 1000-volt range.

2019年1月16日 · Here's some advice on repairing one: https://www.eevblog.com/forum/repair/hp-3490a-fixed/ Kudos to hp providing a manual with enough info to repair this thing. Looking at the schematic, it should be possible to replicate the hybrid with modern parts.

Model: Digital Multimeter 3490A - Hewlett-Packard, HP; Palo Alto; Shape; Tablemodel, low profile (big size). Dimensions (WHD) 425 x 85 x 466 mm / 16.7 x 3.3 x 18.3 inch; Notes; Five-digit digital Multimeter with self test. DC Voltage Ranges.Full range display: +/- .100000 V, +/- 1.00000V, +/- 10.0000V, +/- 100.000V, +/- 1000.00V.

The 3490A Multimeter is a basic instrument that measures DC voltages (100 mV to 1000 V f.s.), AC Voltages (100 mV to 1000 V f.s.). Ranging is automatic over all ranges on all functions. Resistance measurements can be made, utilizing the four-wire conversion technique.

2016年8月30日 · I recently fixed up my old HP 3490a multimeter after spending a few months of trouble shooting. So here's a word of advice for others. Check that every dip chip is fully seated in the socket! I have spent countless hours of effort on trying to get my meter to work only to find out that it was just a dip package flapping in the breeze.

View and Download HP 3490A operating and service manual online. 3490A multimeter pdf manual download.

HP (Hewlett-Packard) 3490A User Manual... HP (Hewlett-Packard) User Manual. Download. Specifications and Main Features. Frequently Asked Questions. User Manual. Download ... This mance specifications for the Model 3490A available options. It . with the . are available.Instrument . mation is . 1-5. l-6. Table critical Table operating . l-7 ...

2020年7月5日 · The 3490A five-digit integrating digital multimeter is an early microprocessor-based instrument that was one of the first to rely heavily on software for its operation. HP heavily marketed the 3490A's built-in self-diagnostic capabilities, which provide extensive tests of nearly all internal circuitry.

Download HP 3490A service manual & repair info for electronics experts Service manuals, schematics, eproms for electrical technicians This site helps you to save the Earth from electronic waste!

Download HP 3490A MULTIMETER service manual & repair info for electronics experts