FEATURES
Safety Conformance
Specifications
Mechanical & General Specifications
• DMM and loop calibrator in one tool
• Clear LCD with backlight; 4,000 counts (30,000 counts for dc current)
• Ni – MH rechargeable batteries
• 1000V overload protection on V, ohms, frequency.
• 25% Manual Step plus Auto Step and Auto Ramp on mA output.
Yehai combined the DMM you trust with the loop calibrator you need. The YHS-787 ProcessMeter puts a complete troubleshooting solution in the palm of your hand. Get in touch with more information, faster and easier with the newest member of the Yehai 80 Series, the 787 ProcessMeter. The YHS-787 gives you the measurement capabilities you expect from our rugged, reliable DMMs plus the ability to source, simulate, or measure dc current with 1 microamp resolution and accuracy of 0.05%. Put it all together and you have the ideal tool for troubleshooting and calibrating current loop applications. So if you're tired of always tracking down a calibrator, lugging around two tools and switching back and forth, get the single best solution for doubling your power. The 787 ProcessMeter from Yehai.
Precision 1000V, 400 mA digital multimeter
• Measure ac and dc volts, ac and dc current, resistance, continuity, and frequency
• 0.1% dc voltage accuracy
• 0.05% dc current accuracy, 1 ‘A resolution to 30 mA
• Simultaneous mA and % of scale readout
• True rms ac voltage measurement to 1 kHz
• Frequency measurement to 20 kHz
• Min/Max/Average/TouchHold/Relative modes
• Diode test and continuity beeper
DC current source/loop calibrator
• 20 mA current source/simulator
• Simultaneous mA and % of scale readout
• Manual step (25%, coarse, fine) plus auto step and auto ramp
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Safety Conformance
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Current Measurement
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Range:
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0-10A
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Resolution:
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1 mA
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Accuracy:
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0.2% + 2 LSD
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Range:
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0-40 mA
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Resolution:
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0.001 mA
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Accuracy:
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0.05% + 6 LSD
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Current Sourcing
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Range:
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0-20 mA or 4-20 mA
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Accuracy:
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0.05% of span
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Drive Capability:
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1000 Ω @ 20 mA
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Frequency
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20Hz to 50 kHz, 0.05% + 5LSD
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Voltage measurement
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Range:
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0-700 V AC or 1000V DC
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Resolution:
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0.1 mV to 1.0 V
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Accuracy:
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0.03% Rdg + 5LSD (VDC)
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Resistance measurement
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to 4 MΩ, 0.2% + 10 LSD, 4 MΩ to 40 MΩ 0.5% + 50 LSD
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Diode test
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2.4 V shows diode voltage drop
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Size
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40 x 100 x 200 mm
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Weight
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600 g
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Batteries
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Ni – MH rechargeable batteries
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Warranty
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2 years
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Battery Life
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50 hours typical (measurement), 12 hours typical (sourcing 12 mA)
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Shock & Vibration
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Random, 2g, 5-500 Hz
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1 meter drop test
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Display current and % of span
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Yes
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Auto step, auto ramp
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Yes
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