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The Fluke BT 520 is a test tool used for maintenance, troubleshooting and performance testing on batteries used in critical battery back-up applications.
| Functions | Range | Resolution | Accuracy | BT510 | BT520 | BT521 | |
| Battery resistance1 | 3 mΩ | 0.001 mΩ | 1% + 8 | ● | ● | ● | |
| 30 mΩ | 0.01 mΩ | 0.8% + 6 | ● | ● | ● | ||
| 300 mΩ | 0.1 mΩ | 0.8% + 6 | ● | ● | ● | ||
| 3000 mΩ | 1 mΩ | 0.8% + 6 | ● | ● | ● | ||
| VDC | 6 V | 0.001 V | 0.09% + 5 | ● | ● | ● | |
| 60 V | 0.01 V | 0.09% + 5 | ● | ● | ● | ||
| 600 V | 0.1 V | 0.09% + 5 | ● | ● | ● | ||
| 1000 V | 1 V | 0.09% + 5 | ● | ||||
| VAC (45 Hz to 500 Hz with 800 Hz filter) | 600 V | 0.1 V | 2% + 10 | ● | ● | ● | |
| Frequency (displayed with VAC and AAC)2 | 500 Hz | 0.1 Hz | 0.5% + 8 | ● | ● | ● | |
| AC voltage ripple (20 KHz Max) | 600 mV | 0.1 mV | 3% + 20 | ● | ● | ● | |
| 6000 mV | 1 mV | 3% + 10 | ● | ● | ● | ||
| ADC/AAC (with accessory Fluke i410) | 400 A | 1 A | 3.5% + 2 | ● | |||
| Temperature | 0°C to 60°C | 1°C | 2°C (4°F) | ● | |||
| Meter mode | 999 records for each measurement position with time stamp | ||||||
| Sequence mode | Up to 100 profiles and 100 profile templates (Each profile stores up to 450 batteries) with time stamp | ||||||
| 1. The measurement is based on AC injection method. The injected source signal is < 100 mA, 1 kHz. 2. Trigger level VAC: 10 mV, AAC: 10 A | |||||||
| Measurement Modes | BT510 | BT520 | BT521 | ||||
| Resistance (mΩ) | ● | ● | ● | ||||
| Battery voltage | ● | ● | ● | ||||
| Voltage DC | ● | ● | ● | ||||
| Voltage AC and frequency (Hz) | ● | ● | ● | ||||
| Ripple volt | ● | ● | ● | ||||
| Temperature of negative battery post | ● | ||||||
| DC and AC current (and frequency) | ● | ||||||
| DMM mode | ● | ● | ● | ||||
| Sequence mode | ● | ● | |||||
| Discharge measurement mode | ● | ● | ● | ||||
| Automatic measurement save | ● | ● | ● | ||||
| Wireless commumcation | ● | ||||||
| Memory view | ● | ● | ● | ||||
| General Specifications | |||||||
| Size (H x W x D) | 22 x 10.3 x 5.8 cm (9 x 4 x 2 in) | ||||||
| Weight | 850 g (1.9 lb) | ||||||
| Screen dimensions | 7.7 x 5.6 cm (3 x 2.2 in) | ||||||
| Interface | USB mini | ||||||
| Warranty | 3 years | ||||||
| Environment Specifications | |||||||
| Operating temperature | 0°C to 40°C | ||||||
| Storage temperature | -20°C to 50°C | ||||||
| Lithium-ion battery charging temperature | 0°C to 40°C | ||||||
| Operating humidity | Non-condensing (10°C) | ||||||
| ≤ 80% RH (at 10°C to 30°C) | |||||||
| ≤ 75% RH (at 30°C to 40°C) | |||||||
| Operating altitude | Sea level to 2000 meters | ||||||
| Storage altitude | Sea level to 12,000 meters | ||||||
| IP rating | IP40 | ||||||
| Radio | FCC Class A | ||||||
| Vibration requirements | MIL-PRF-28800F: Class 2 | ||||||
| Drop test requirements | 1 meter | ||||||
| Temperature coefficients | Add 0.1 x specified accuracy for each degree C above 28°C or below 18°C | ||||||
| Safety compliance | 600 V CAT III | ||||||
| EMC | IEC 61326 | ||||||
| ROHS | China, Europe | ||||||
| Protection class 2 | Pollution Degree II | ||||||
| Battery compliance | UN38.3 | ||||||
| UL2054 | |||||||
| IEC62133 | |||||||
| 2 G per IEC68-2-26, 25 G, and 29 | |||||||
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