Weschler Instruments – Manufacturer & distributor of measurement & control equipment
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Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
All Categories > Test Equipment > Fluke Process Loop Calibrators > Fluke 789 Process Meter > Item # Fluke 789  
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Item # Fluke 789, Fluke 789 Process Meter

Fluke 787 Process Meter

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  • DMM and Loop Calibrator
  • Backlit LCD
  • 1000V Overload Protection on V, Ohms, Frequency
  • 24V Loop Power Supply
  • HART™ Mode
  • Fast “Span Check”


Voltage Measurement

0-1000 V ac or dc, Resolution: 0.1mV to 1.0V, Accuracy: 0.1% Rgd + 1 LSD (VDC)

Current Measurement

0-1A dc, Resolution: 1mA dc, Accuracy: 0.2%+2 LSD
0-30 mA dc, Resolution: 0.001 mA dc, Accuracy: 0.05%+2 LSD

Current Sourcing

0-20 mA or 4-20 mA, Accuracy: 0.05% of span
Will over- range to 24 mA

Drive Capability

1200ohm at 24 mA

Resistance Measurement

to 40Mohm, 0.2% + 1 LSD


to 19.999 kHz,0.005% + 1 LSD

Diode Test

2.4 V shows diode voltage drop


Beeps for resistance <100 ohms

Display Current and % of Span


Auto Step, auto Ramp


Span Check



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