DM501A

Manuals – Specifications – Links – Pictures

The Tektronix DM501A is a 4½ digit True RMS multimeter plug-in for the TM500 system.

It replaced the DM501 (which suffered from accuracy limitations) in 1980. It also has a temperature input, requiring the P6601 PT-100 probe with a 2-pin LEMO S-series connector.

Key Specifications

DC Voltage ranges and accuracy	200 mVDC to 200 VDC in decade ranges (0.05% + 0.01% (200 mV: 0.015%) FS), 1000 VDC (0.05% + 0.02% FS)
DC Voltage characteristics	Input resistance 10 MΩ, CMRR >100 dB at DC, 80 dB at 50 and 60 Hz (1 kΩ unbal.), NMRR 60 dB at 50 or 60 Hz
AC Voltage ranges and accuracy	200 mVDC to 200 VAC in decade ranges, and 500 VAC (0.6% + 0.05% (500 V:0.2%) FS, True RMS)
AC Voltage characteristics	Input impedance 10 MΩ // ≤160 pF, CMRR 60 dB at 50 or 60 Hz (1 kΩ unbal.)
DC Current ranges and accuracy	200 μA to 2 A in decade ranges, 0.2% + 0.015% FS
AC Current ranges and accuracy	200 μA to 2 A in decade ranges, 0.6% + 0.05% FS (for 20 Hz to 10 kHz sine >5% FS)
Ohms ranges and accuracy	200 Ω to 20 MΩ in decade ranges, current 1 mA, 1 mA, 100 μA, ... 0.1 μA respectively; 0.15% (20 MΩ: 0.5%) + 0.015% FS
Temperature range and accuracy	–62°C to +150°C (±2°C cal. probe, ±4°C uncal. probe), +150°C to +240°C (+0/-6°C or +2/-8°C any probe, uncal.)

Pictures

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  DM501A

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  DM501A

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  DM501A Option 2 (no temperature range) 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

See also

• Siliconix LD120 and LD121A datasheets
• Fairchild 3814 counter IC