Fluke BT521 Battery Internal Resistance Analyzer

The Fluke BT521 is a battery internal resistance analyzer designed for diagnostics and maintenance of battery systems. It measures battery voltage and internal resistance, allowing users to assess their condition and performance. The device features automatic data logging and PC connectivity for further analysis.

Technical Specifications

Measurement Ranges:

• Battery Resistance:
  • 3 mΩ (resolution 0.001 mΩ, accuracy 1% + 8)
  • 30 mΩ (resolution 0.01 mΩ, accuracy 0.8% + 6)
  • 300 mΩ (resolution 0.1 mΩ, accuracy 0.8% + 6)
  • 3000 mΩ (resolution 1 mΩ, accuracy 0.8% + 6)
• DC Voltage:
  • 6 V (resolution 0.001 V, accuracy 0.09% + 5)
  • 60 V (resolution 0.01 V, accuracy 0.09% + 5)
  • 600 V (resolution 0.1 V, accuracy 0.09% + 5)
  • 1000 V (resolution 1 V, accuracy 0.09% + 5)
• AC Voltage: up to 600 V (resolution 0.1 V, accuracy 2% + 10)
• Frequency: up to 500 Hz (resolution 0.1 Hz, accuracy 0.5% + 8)
• AC Ripple Voltage:
  • 600 mV (resolution 0.1 mV, accuracy 3% + 20)
  • 6000 mV (resolution 1 mV, accuracy 3% + 10)
• Current (with Fluke i410 clamp): up to 400 A (resolution 1 A, accuracy 3.5% + 2)
• Temperature (with BTL21 probe): 0°C to 60°C (resolution 1°C, accuracy ±2°C)

General Characteristics:

• Dimensions (H x W x D): 22 cm x 10.3 cm x 5.8 cm
• Weight: 850 g
• Screen Size: 7.7 cm x 5.6 cm
• Interface: Mini-USB
• Warranty: 3 years

Operating Conditions:

• Operating Temperature: 0°C to 40°C
• Storage Temperature: -20°C to 50°C
• Battery Charging Temperature: 0°C to 40°C
• Humidity: Up to 80% at 30°C (non-condensing)
• Altitude: Up to 2000 m
• Protection Rating: IP40
• Safety Category: CAT III 600 V

Additional Features

The Fluke BT521 supports wireless data transmission via Bluetooth, allowing measurement results to be sent to mobile devices with the Fluke Battery Analyzer app. This enhances convenience and mobility in battery testing.

The Fluke BT521 is a reliable tool for assessing the condition of battery systems. Its high accuracy, broad measurement capabilities, and user-friendly features make it an ideal choice for professional battery maintenance.