The 789 also has a built-in 24-Volt loop supply, which reduces the need to carry a separate power supply when doing offline transmitter testing. You can also add the wireless data logging capabilities of the Fluke Connect™ mobile app to log data wirelessly to your smart phone and review it from a remote location. *Requires Fluke IR3000FC module (not included). Not all models are available in all countries. Check with your local Fluke representative. Do a lot more while carrying a lot less The 789 provides all standard DMM capabilities including frequency measurement to 20 kHz, Min/Max/Average/Hold/Relative modes, and diode test and continuity beeper. Combine that with the ability to troubleshoot every part of the loop. Measure, source, simulate 4-20 mA signals, measure resistance, measure power, provide power to the loop and provide 250-ohm resistance to the loop. The 789 includes SpanCheck; 0% and 100% buttons to toggle between 4 and 20 mA sourcing, while the display can simultaneously show mA and % of scale readings for faster troubleshooting. It also delivers 1200-ohm drive capability on mA source. Accuracy This ProcessMeter offers manual step, 100%, 25%, Coarse, Fine, plus auto step and auto ramp. It also delivers 0.1% DC voltage accuracy and 0.05% DC current accuracy. Specifications: Fluke 789 ProcessMeter™ Specifications Current measurement Range 0-1 A AC or DC Resolution 1 mA Accuracy 0.2% 2 LSD (DC) Range 0-30 mA Resolution 0.001 mA Accuracy 0.05% 2 lSD Current sourcing Range 0-20 mA or 4-20 mA Resolution 0.05% of span Drive capability 24 V Compliance or 1200 Ω @ 20 mA Frequency to 19.999 kHz, 0.005% 1 LSD Continuity Beeps for resistance < 100 Ω Voltage measurement Range 0-1000 V AC (true-rms) or DC Resolution 0.1 mV to 1.0 V Accuracy 0.1% Rdg 1 LSD (VDC) Resistance measurement to 40 MΩ, 0.2% 1 LSD Diode test 2.0 V shoes diode voltage drop Display current and % of span Yes Auto Step, Auto Ramp Yes Environmental Specifications Operating temperature -20°C to 55°C Storage temperature -40°C to 60°C Humidity (without condensation) 95% up to 30°C75% up to 40°C45% up to 50°C35% up to 55°C Temperature coefficient 0.05 x (specified accuracy) per °C (for temperatures < 18°C or > 28°C) Safety Specifications Electrical safety Designed in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No 1010.1-92 Overvoltage category IEC 1010-1 CAT III 1000 VIEC 1010-1 CAT IV 600 V Maximum voltage 1000 V RMS Mechanical and General Specifications Size (H x W x L) 50 x 100 x 203 mm (1.25 x 3.41 x 7.35 in) Weight 610 g (1.6 lbs) Batteries 4 AA alkaline batteries Warranty 3 years Battery life 140 hours typical (measurement), 10 hours typical (sourcing 20 mA) Shock and vibration Random, 2 g, 5-500 Hz1 meter drop test
