DM501: Difference between revisions
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{{TM500 | mfg=Tektronix | type=DM501 | function=4½ digit True RMS multimeter | class=multimeter | image=DM501 front.jpg | introduced=1972 | discontinued=1984 | | {{TM500 | mfg=Tektronix | type=DM501 | function=4½ digit True RMS (DM501A only) multimeter | class=multimeter | image=DM501 front.jpg | introduced=1972 | discontinued=1984 | | ||
manuals= | manuals= | ||
* [http://w140.com/tek_dm501.pdf Tektronix DM501 Manual (PDF)] | * [http://w140.com/tek_dm501.pdf Tektronix DM501 Manual (PDF)] | ||
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(see [[Media:Physical Measurements Handbook.pdf | Physical Measurements Handbook]]). | (see [[Media:Physical Measurements Handbook.pdf | Physical Measurements Handbook]]). | ||
{ | |||
==Specifications== | |||
{|class="wikitable" | |||
|+ Specification according to manual, see discussion page | |||
|- | |||
! style="text-align:left;"| Range !! DM501 (15°C...35°C) !! DM501A (18°C...28°C) | |||
|- | |||
! Accuracy DC Voltmeter | |||
|- | |||
|200 mV<sub>DC</sub>|| N/A || 0.05% + 0.015% FS | |||
|- | |||
|2 V<sub>DC</sub>||0.1% + 0.01% FS||0.05% + 0.01% FS | |||
|- | |||
|20 V<sub>DC</sub>||0.1% + 0.01% FS||0.05% + 0.01% FS | |||
|- | |||
|200 V<sub>DC</sub>||0.1% + 0.01% FS||0.05% + 0.01% FS | |||
|- | |||
|1000 V<sub>DC</sub>||0.1% + 0,02% FS||0.05% + 0.02% FS | |||
|- | |||
! Charactersitics DC Voltmeter | |||
|- | |||
|Input Resistance || colspan="2" style="text-align:center"|10 MΩ | |||
|- | |||
|CMRR || >100dB at DC; 80dB at 60Hz; 1 kΩ unbal. || >100dB at DC; 80dB at 50 & 60 Hz; 1 kΩ unbal. | |||
|- | |||
|NMRR || ≥30dB at 60Hz +20dB/decade || 60dB at 50Hz or 60 Hz +0.2 Hz | |||
|- | |||
! Accuracy AC Voltmeter 40 Hz ... 10 kHz || Sine Wave || True RMS | |||
|- | |||
|200 mV<sub>AC</sub> || N/A || 0.6% + 0.05% FS True RMS | |||
|- | |||
| 2 V<sub>AC</sub>||0.7% +0.01% FS @ sine wave|| 0.6% +0.05% FS True RMS | |||
|- | |||
| 20 V<sub>DC</sub> || 0.7% +0.01% FS @ sine wave|| 0.6% +0.05% FS True RMS | |||
|- | |||
| 200 V<sub>DC</sub> || 0.7% +0.01% FS @ sine wave|| 0.6% +0.05% FS True RMS | |||
|- | |||
| 500 V<sub>DC</sub> || 0.7% +0.01% FS @ sine wave|| 0.6% +0.2% FS True RMS | |||
|- | |||
! Charactersitics AC Voltmeter | |||
|- | |||
|Input Impedance ||10 MΩ paralleled by <70 pF || 10 MΩ paralleled by 160 pF | |||
|- | |||
|CMRR || Unknown || 60dB @ 50Hz and 60Hz with 1 kΩ unbalance | |||
|- | |||
! Accuracy Ohmmeter | |||
|- | |||
|200 Ω || N/A || 0.15% + 0.015% FS @ 1 mA | |||
|- | |||
|2 kΩ|| 0.3% + 0.01% FS @ 1 mA|| 0.15% + 0.015% FS @ 0.1/ 1 mA | |||
|- | |||
|20 kΩ|| 0.3% + 0.01% FS @ 0.1 mA || 0.15% + 0.015% FS @ 10/ 100 µA | |||
|- | |||
|200 kΩ|| 0.3% + 0.01% FS @ 10 μA|| 0.15% + 0.015% FS @ 1/ 10 µA | |||
|- | |||
| 2 MΩ|| 0.3% + 0.01% FS @ 1 µA || 0.15% + 0.015% FS @ 1 µA (0.3%+0.015%FS @ 0.1 µA) | |||
|- | |||
| 20 MΩ|| 0.5% + 0.01% FS @ 0.1 µA|| 0.5% + 0.015% FS @ 0.1 µA | |||
|- | |||
! Accuracy DC Ammeter | |||
|- | |||
|200 µA || N/A || 0.2%0.015%FS @ 1 kΩ | |||
|- | |||
|2 mA || 0.2%+0.05% @ 100.1 Ω|| 0.2%0.015%FS @ 100 Ω | |||
|- | |||
| 20 mA || 0.2%+0.05% @ 10.1 Ω || 0.2%0.015%FS @ 10.2 Ω | |||
|- | |||
|200 mA || 0.2%+0.05% @ 1.1 Ω || 0.2%0.015%FS @ 1.2 Ω | |||
|- | |||
|2000 mA ||0.2%+0.05% @ 0.2 Ω || 0.2%0.015%FS @ 0.4 Ω | |||
|- | |||
! Accuracy AC Ammeter || 40 Hz...1 kHz sine wave || 20 Hz...10 kHz sine wave / I<sub>meas</sub>>5%FS | |||
|- | |||
|200µA || N/A || 0.6%+0.05%FS @ 1 kΩ | |||
|- | |||
| 2 mA || 0.6%+0.01%FS @ 100.1 Ω|| 0.6%+ 0.05% FS @ 100 Ω | |||
|- | |||
| 20 mA || 0.6%+0.01%FS @ 10.1 Ω || 0.6%+ 0.05% FS @ 10.2 Ω | |||
|- | |||
| 200 mA || 0.6%+0.01%FS @ 1.1 Ω|| 0.6%+ 0.05% FS @ 1.2 Ω | |||
|- | |||
| 2000 mA || 0.6%+0.01%FS @ 0.2 Ω|| 0.6%+ 0.05% FS @ 0.4 Ω | |||
|- | |||
! Accuracy Temperature || [[P6058]] Probe (V<sub>BE</sub>) || [[P6601]] (PT100) Probe calibrated to instrument | |||
|- | |||
| -62°C...-55°C|| N/A || ±2°C (±4°C any probe, uncal.) | |||
|- | |||
| -55°C...125°C|| ±1.5°C || ±2°C (±4°C any probe, uncal.) | |||
|- | |||
| 125°C...150°C|| ±2.5°C || ±2°C (±4°C any probe, uncal.) | |||
|- | |||
| 150°C...240°C|| N/A || +0°C/-6°C (+2°C/-8°C any probe, uncal.) | |||
|} | |||
==Pictures== | ==Pictures== |
Revision as of 14:49, 2 January 2021
The Tektronix DM501 is a 4½ digit True RMS (DM501A only) multimeter plug-in for the TM500 system.
It also has a temperature input, requiring the P6058 or P6430 temperature probe (DM501A: P6601 PT-100 probe).
The DM501 MOD718D variant replaced the temperature range with a 200 mV input range providing 10 μV resolution (see Physical Measurements Handbook).
Specifications
Range | DM501 (15°C...35°C) | DM501A (18°C...28°C) |
---|---|---|
Accuracy DC Voltmeter | ||
200 mVDC | N/A | 0.05% + 0.015% FS |
2 VDC | 0.1% + 0.01% FS | 0.05% + 0.01% FS |
20 VDC | 0.1% + 0.01% FS | 0.05% + 0.01% FS |
200 VDC | 0.1% + 0.01% FS | 0.05% + 0.01% FS |
1000 VDC | 0.1% + 0,02% FS | 0.05% + 0.02% FS |
Charactersitics DC Voltmeter | ||
Input Resistance | 10 MΩ | |
CMRR | >100dB at DC; 80dB at 60Hz; 1 kΩ unbal. | >100dB at DC; 80dB at 50 & 60 Hz; 1 kΩ unbal. |
NMRR | ≥30dB at 60Hz +20dB/decade | 60dB at 50Hz or 60 Hz +0.2 Hz |
Accuracy AC Voltmeter 40 Hz ... 10 kHz | Sine Wave | True RMS |
200 mVAC | N/A | 0.6% + 0.05% FS True RMS |
2 VAC | 0.7% +0.01% FS @ sine wave | 0.6% +0.05% FS True RMS |
20 VDC | 0.7% +0.01% FS @ sine wave | 0.6% +0.05% FS True RMS |
200 VDC | 0.7% +0.01% FS @ sine wave | 0.6% +0.05% FS True RMS |
500 VDC | 0.7% +0.01% FS @ sine wave | 0.6% +0.2% FS True RMS |
Charactersitics AC Voltmeter | ||
Input Impedance | 10 MΩ paralleled by <70 pF | 10 MΩ paralleled by 160 pF |
CMRR | Unknown | 60dB @ 50Hz and 60Hz with 1 kΩ unbalance |
Accuracy Ohmmeter | ||
200 Ω | N/A | 0.15% + 0.015% FS @ 1 mA |
2 kΩ | 0.3% + 0.01% FS @ 1 mA | 0.15% + 0.015% FS @ 0.1/ 1 mA |
20 kΩ | 0.3% + 0.01% FS @ 0.1 mA | 0.15% + 0.015% FS @ 10/ 100 µA |
200 kΩ | 0.3% + 0.01% FS @ 10 μA | 0.15% + 0.015% FS @ 1/ 10 µA |
2 MΩ | 0.3% + 0.01% FS @ 1 µA | 0.15% + 0.015% FS @ 1 µA (0.3%+0.015%FS @ 0.1 µA) |
20 MΩ | 0.5% + 0.01% FS @ 0.1 µA | 0.5% + 0.015% FS @ 0.1 µA |
Accuracy DC Ammeter | ||
200 µA | N/A | 0.2%0.015%FS @ 1 kΩ |
2 mA | 0.2%+0.05% @ 100.1 Ω | 0.2%0.015%FS @ 100 Ω |
20 mA | 0.2%+0.05% @ 10.1 Ω | 0.2%0.015%FS @ 10.2 Ω |
200 mA | 0.2%+0.05% @ 1.1 Ω | 0.2%0.015%FS @ 1.2 Ω |
2000 mA | 0.2%+0.05% @ 0.2 Ω | 0.2%0.015%FS @ 0.4 Ω |
Accuracy AC Ammeter | 40 Hz...1 kHz sine wave | 20 Hz...10 kHz sine wave / Imeas>5%FS |
200µA | N/A | 0.6%+0.05%FS @ 1 kΩ |
2 mA | 0.6%+0.01%FS @ 100.1 Ω | 0.6%+ 0.05% FS @ 100 Ω |
20 mA | 0.6%+0.01%FS @ 10.1 Ω | 0.6%+ 0.05% FS @ 10.2 Ω |
200 mA | 0.6%+0.01%FS @ 1.1 Ω | 0.6%+ 0.05% FS @ 1.2 Ω |
2000 mA | 0.6%+0.01%FS @ 0.2 Ω | 0.6%+ 0.05% FS @ 0.4 Ω |
Accuracy Temperature | P6058 Probe (VBE) | P6601 (PT100) Probe calibrated to instrument |
-62°C...-55°C | N/A | ±2°C (±4°C any probe, uncal.) |
-55°C...125°C | ±1.5°C | ±2°C (±4°C any probe, uncal.) |
125°C...150°C | ±2.5°C | ±2°C (±4°C any probe, uncal.) |
150°C...240°C | N/A | +0°C/-6°C (+2°C/-8°C any probe, uncal.) |
Pictures
DM501
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DM501
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DM501 open left side
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DM501 integrator board
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DM501 integrator board solder side
DM501A
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DM501A
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DM501A
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DM501A on an extension cable
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DM501A
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DM501A rear connector
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DM501A RHS
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DM501A LHS
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DM501A LHS- removed shielding