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]]).


{{BeginSpecs}}
 
{{Spec | DC V ranges | 200 mV, 2 V, 20 V, 200 V, 1000 V }}
==Specifications==
{{Spec | DC V accuracy | DM501: 0.1% of reading + 0.01% FS - DM501A: 0.05% of reading + 0.01% FS in 2 V to 200 V ranges @ +18 °C to +28 °C }}
{|class="wikitable"
{{Spec | DC V input resistance | 10 MΩ }}
|+ Specification according to manual, see discussion  page
{{Spec | AC V ranges | 200 mV (DM501A only), 2 V, 20 V, 200 V, 500 V }}
|-
{{Spec | AC V accuracy |DM501: 0.7% of reading + 0.01% FS - DM501A: 0.6% of reading + 0.05% FS in 0.2 V to 200 V ranges, 40 Hz to 10 kHz @ +18 °C to +28 °C }}
! style="text-align:left;"| Range !! DM501 (15°C...35°C) !! DM501A (18°C...28°C)
{{Spec | AC V input resistance |DM501: 10 MΩ // 70pF - DM501A: 10 MΩ // 160 pF }}
|-
{{Spec | dB ranges (DM501A only) | −40, −20, 0, +20, +40 dB }}
! Accuracy DC Voltmeter
{{Spec | Ω ranges | 200 Ω (DM501A only), 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ, 20  MΩ }}
|-
{{Spec | Ω accuracy | DM501: 0.3% + 0.01% FS (2 kΩ to 2 MΩ) - DM501A: 0.15% of reading + 0.015% FS, 200 Ω to 2 MΩ ranges @ +18 °C to +28 °C }}
|200  mV<sub>DC</sub>|| N/A || 0.05%  + 0.015% FS
{{Spec | DC A ranges | 200 μA (DM501A only), 2 mA, 20 mA, 200 mA, 2 A }}
|-
{{Spec | DC A accuracy |DM501: 0.2% of reading + 0.05% FS - DM501A: 0.2% of reading + 0.015% FS @ +18 °C to +28 °C }}
|2  V<sub>DC</sub>||0.1% + 0.01% FS||0.05% + 0.01% FS
{{Spec | AC A ranges | 200 μA (DM501A only), 2 mA, 20 mA, 200 mA, 2 A }}
|-
{{Spec | AC A accuracy |DM501: 0.6% + 0.01% FS - DM501A: 0.6% of reading + 0.05% FS, 40 Hz (20 Hz DM501A) to 10 kHz @ +18 °C to +28 °C }}
|20  V<sub>DC</sub>||0.1% + 0.01% FS||0.05% +  0.01% FS
{{Spec | Temperature range | −62 °C to +240 °C }}
|-
{{Spec | Temperature accuracy |DM501: ±1.5°C from -55°C to +125°C - DM501A: ±2 °C from -62 °C to +150 °C with probe calibrated to instrument, @ +18 °C to +28 °C ambient }}
|200  V<sub>DC</sub>||0.1% + 0.01% FS||0.05% + 0.01% FS
{{EndSpecs}}
|-
|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

Tektronix DM501
4½ digit True RMS (DM501A only) multimeter
Tektronix DM501

Produced from 1972 to 1984

Manuals
Manuals – Specifications – Links – Pictures

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

Specification according to manual, see discussion page
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

  • DM501

    DM501

  • DM501 open left side

    DM501 open left side

  • DM501 integrator board

    DM501 integrator board

  • DM501 integrator board solder side

    DM501 integrator board solder side

DM501A

  • DM501A

    DM501A

  • DM501A

    DM501A

  • DM501A on an extension cable

    DM501A on an extension cable

  • DM501A

    DM501A

  • DM501A rear connector

    DM501A rear connector

  • DM501A RHS

    DM501A RHS

  • DM501A LHS

    DM501A LHS

  • DM501A LHS- removed shielding

    DM501A LHS- removed shielding


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