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Fluke 787B CAL OffersThe Fluke 789B Process Meter is the ultimate troubleshooting tool for electricians and instrumentation professionals. It combines the functionality of a full-featured loop calibrator with the power of a CAT III 1000 V, CAT IV 600 V safety rated digital multimeter, and the wireless capabilities of Fluke Connect connectivity with optional IR3000FC module. The 789 has a large, dual display with two levels of backlighting and externally accessible fuse and batteries for easy replacement. And its built-in, selectable 250-ohm HART® resistor eliminates the need to carry a separate resistor.
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.
Features
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 to 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 Process Meter 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.
Applications
| Measurement Function | V DCRange and resolution: 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 VBest accuracy (% of reading + LSD): 0.1% + 1 V AC (true-rms)Range and resolution: 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 VBest accuracy (% of reading + LSD): 0.7% + 2 mA DCRange and resolution: 30.000 mABest accuracy (% of reading + LSD): 0.05% + 2 A DCRange and resolution: 1.000 A (0.440 A continuous)Best accuracy (% of reading + LSD): 0.2% + 2 A ACRange and resolution: 1.000 A (0.440 A continuous)Best accuracy (% of reading + LSD): 1% + 2 ResistanceRange and resolution: 400.0 Ohms, 4.000 k, 40.00 k, 400.0 k, 4.0 M, 40 MBest accuracy (% of reading + LSD): 0.2% + 1 Frequency (0.5 Hz to 20 kHz)Range and resolution: 199.99 Hz, 1999.9 Hz, 19.999 kHzBest accuracy (% of reading + LSD): 0.005% + 1 Diode testRange and resolution: 2.000 V (shows diode voltage drop)Best accuracy (% of reading + LSD): 2% + 1 ContinuityRange and resolution: Beeps for resistance < approximately 100 ohms |
| Output Function | DC current output (internal battery operation)Range and resolution: 0.000 to 20.000 mA or 4.000 to 20.000 mA (selectable at power-up), Over-range to 24.000 mADrive capability: 24 V compliance or 1200 ohms, at 20 mAAccuracy (% of span): 0.05% DC current simulate (Ext. 15 V to 48 V loop supply)Range and resolution: 0.000 to 20.000 mA or 4.000 to 20.000 mA (selectable at power-up), Over-range to 24.000 mADrive capability: 1000 ohms, at 20 mAAccuracy (% of span): 0.05% 24 V loop supply*Range and resolution: Minimum 24 VDrive capability: 250 ohms at 20 mAAccuracy (% of span): > 24 V Current adjustment modesRange and resolution: Manual: Coarse, Fine, 25% and 100% stepDrive capability: Automatic: Slow Ramp, Fast Ramp, 25% stepTemperature range of 64 to 82°F (18 to 28°C) for one year after calibration |
| Maximum voltage applied between any jack and earth ground | 1000 V RMS |
| Vibration | Random, 2 g, 5-500 Hz |
| Shock | 3.28' (1 m) drop test |
| Safety | IEC61010-1, Pollution Degree 2/IEC61010-2-033, CAT IV 600 V/CAT III 1000 V |
| Environmental Conditions | Storage temperature: -40 to 140°F (-40 to 60°C)Operating temperature: -4 to 131°F (-20 to 55°C)Temperature coefficient: 0.05 x (specified accuracy) per °C (for temperatures < 64 °F or > 82 °F)Relative humidity: 95% up to 86°F (30°C); 75% up to 104°F (40°C); 45% up to 122°F (50°C); 35% up to 131°F (55°C) |
| Power | Battery: Four AA alkaline batteriesBattery life: 140 hours typical (measurement), 10 hours typical (sourcing 12 mA) |
| Dimensions | 1.97 x 3.94 x 8" (50 x 100 x 203 mm) |
| Weight | 1.3 lbs (600 g) |
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