787

789

DMM and Loop Calibrator in one tool

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Precision 1000 V, 440 mA True RMS Digital Multimeter

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DC current source and Loop Calibrator

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24 V Loop power supply

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Min/Max / Average / Hold / Relative Modes

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Diode Test and Continuity Beeper

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Manual Step (100%, 25%, Coarse, Fine) plus Auto Step and Auto Ramp

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Simultaneous mA and % of scale read-out

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Externally accessible battery / fuses

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HART mode setting with loop power and a built-in 250 Ω resistor

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0% and 100% buttons to toggle between 4 and 20 mA sourcing for a quick span check

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Infrared I/O serial port

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787

789

Voltage measurements

Range

0.1 mV to 1.0 V

0.1 mV to 1.0 V

Resolution

0-1000 V AC or DC

0-1000 V AC or DC

Accuracy

0.1% Rdg+1 LSD (V DC)

0.1% Rdg+1 LSD (V DC)

Current measurement

Range

0-1 A   0-30 mA

0-1 A   0-30 mA

Resolution

1 mA   0.001 mA

1 mA   0.001 mA

Accuracy

0.2%+2 LSD  0.05%+2 LSD

0.2%+2 LSD  0.05%+2 LSD

Current Sourcing

Range

0-20 mA or 4-24 mA

0-20 mA or 4-24 mA

Accuracy

0.05% of span

0.05% of span

Other specifications

Max drive capability

500 Ω

1200 Ω

Loop power

N/A

24 V

Resistance measurement

To 40 MΩ, 0.2%+1 LSD

To 40 MΩ, 0.2%+1 LSD

Frequency

To 19.999 kHz, 0.005%+1 LSD

To 19.999 kHz, 0.005%+ LSD

Continuity

Beeps for resistance < 100 Ω

Beeps for resistance < 100 Ω

Span Check

No

Yes