DM44: Difference between revisions
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* [http://w140.com/tek_dm44_description.pdf DM44 Description (PDF)] | * [http://w140.com/tek_dm44_description.pdf DM44 Description (PDF)] | ||
* [[Media:Tektronix_070-2038-00_465_Oscilloscope_and_DM44_Digital_Multimeter_Operators_Instruction_Manual_First_Printing_July_1976.pdf | Tektronix 465 and DM44 Operators Instruction Manual]] | * [[Media:Tektronix_070-2038-00_465_Oscilloscope_and_DM44_Digital_Multimeter_Operators_Instruction_Manual_First_Printing_July_1976.pdf | Tektronix 465 and DM44 Operators Instruction Manual]] | ||
* [[Media:DM44 070-2036-00.pdf|Tektronix DM44 Manual (PDF)]] | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
Revision as of 14:09, 13 November 2018
The Tektronix DM44 is a digital multimeter module that attaches to the top of the 464, 465, 466, and 475. It replaced the DM40 and DM43. It is a 3½ Digit Multimeter.
- DM44 Description (PDF)
- Tektronix 465 and DM44 Operators Instruction Manual
- Tektronix DM44 Manual (PDF)
Key Specifications
| DC V Range | 0 to 1.2kV in 5 Steps |
|---|---|
| DC V Resolution | 100μV |
| DC V Accuracy | 0.1% of reading, ±1 Count |
| DC V Input Resistance | 10MΩ, Removable internal wire strap to increase input resistance to 1000MΩ on 200mV and 2V Ranges |
| DC V Maximum Input Voltages, All Ranges | ±1200V (DC + Peak AC) Between Positive input and Common input/Chassis |
| DC V Maximum Floating Voltage on COMMON | ±500V (DC + Peak AC) to Chassis |
| Resistance Range | 0 to 20MΩ in 6 Ranges |
| Resistance Resolution | 0.1Ω |
| Resistance Accuracy 200Ω and 2kΩ Range | within 0.25%, ±1 count + Probe Resistance |
| Resistance Accuracy 20kΩ,200kΩ and 2MΩ Ranges | within 0.25%, ±1 count |
| Resistance Accuracy 20MΩ Range | within 0.30%, ±1 count |
| Resistance Response Time 200Ω and 200kΩ Range | Within 1 Second |
| Resistance Response Time 2MΩ and 20MΩ Range | Within 5 Seconds |
| Temperature Range (with HP6430Probe) | -55 °C to +150 °C |
Links
- Lazy Electrons Tektronix 475A & DM44 Repair Page
- 040-0814-02: Installation of DM44 on 465 B052300 - B251074
- 040-0815-01: Installation of DM44 on 465 B251075 & up
- 040-0944-00: Installation of DM44 on 465B
- 040-0817-01: Installation of DM44 on 475
Pictures
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475 with DM44
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466 with DM44
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Inputs (side panel)
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DM44 Board Top View - Installed in a 475A
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DM44 PCB/Module Side view
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DM44 PCB/Module Front view
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DM44 PCB/Module Top view
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DM44 PCB/Module PCB Trace side
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DM44 Install - Cutout in 475A Case
