DM43

Manuals – Specifications – Links – Pictures

The Tektronix DM43 is a digital multimeter module that attaches to the top of the 463, 464, 465, 466, and 475. The DM43 was later replaced by the DM44. The DM43 is identical to the DM40 except for the added temperature measurement capabilities.

In addition to its voltage, resistance and temperature measurement functions, it can also provide a digital time readout, i.e. the B timebase delay relative to a zero point selected by the user.

Key Specifications

DC V Range	200 mV to 1.2 kV in 5 decade steps
DC V Accuracy	0.1% of reading, ±1 count
DC V Input Resistance	10 MΩ; Removable internal wire strap to increase input resistance to 1000 MΩ on 200 mV and 2 V ranges
Max. Input	±500 V (DC + peak AC) to chassis in 200 mV and 2 V ranges, ±1200 V (DC + peak AC) between positive input and common input in other ranges
Resistance Range	200 Ω to 20 MΩ in 6 decade steps
Resistance Accuracy	200 Ω, 2 kΩ and 20 MΩ, 0.75%, ±1 count; 20 kΩ, 200 kΩ and 2 MΩ, 0.30%, ±1 count
Time Delay Accuracy	within 1.5% ±1count for 475, within 2.5% ±1 count for 464, 465, 466
Temperature Range	−55 °C to +150 °C (with P6430 probe)
Temperature Accuracy	−55 °C to +125 °C: within 2 °C

Links

Documents referencing DM43

Document	Class	Title	Authors	Year	Links
Tekscope 1974 V6 N4.pdf	Article	The Oscilloscope with the Digital Multimeter	Dennis Bratz	1974	DM43 • 465
Tekscope 1975 V7 N1.pdf	Article	Sweep Delay Today	Dave Dunlap	1975	DD501 • 7D11 • DM40 • DM43
Tekscope 1976 V8 N1.pdf	Article	Delta Time Measurement for the 7000 Series	Paul Farley • Les Larson • Bruce Hofer	1976	7B85 • 7B80 • DM40 • DM43

Pictures

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Components

Some Parts Used in the DM43

Part	Part Number(s)	Class	Description	Used in
Siliconix LD110/111A	156-0476-00 • 156-0477-00 • 156-1268-00	Monolithic integrated circuit	3½ digit A/D converter	DM40 • DM43 • DM44 • DM502 • DM502A • DM505