Specifications
ข้อมูลจำเพาะ: 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°C 75% up to 40°C 45% up to 50°C 35% 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 V IEC 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 Hz 1 meter drop test | |
