The Fluke 990DSL CopperPro Copper Loop Tester is a handheld instrument engineered for telecommunications technicians and network installers to verify copper cabling integrity, performance, and suitability across voice and data services. It consolidates the functions of up to sixteen traditional test sets into a single rugged platform, eliminating the need for multiple instruments in the field.
Technical Specifications
Electrical Measurements
• AC Voltage: 0 to 250 V (Accuracy: 1% ± 0.5 V)
• DC Voltage: 0 to ±150 V (Accuracy: 2%)
• DC Loop Current: 0 to 120 mA (Accuracy: 2% at 430 Ω)
• Resistance: 0 to 100 Ω (Accuracy: 0.2% ± 0.10 Ω)
Fault Location & Diagnostics
• Opens Meter: 0 to 3000 ft (0 to 9144 m) with 1% ± 5 ft (1.5 m) accuracy; extends to 50 kft (15240 m)
• Resistance Fault Location (RFL): 0 to 100 MΩ leakage stress (Accuracy: 3%)
• Time Domain Reflectometer (TDR) AutoTest: Locates and identifies faults with 2500 and 5000 nS pulse options
• Load Coil Detection: Counts and locates up to 6 coils (Accuracy: ±1)
Noise & Signal Analysis
• VF Noise Measurement: 0 to 100 dBrn metallic (Accuracy: ±2 dB or ±1 dB); 40 to 120 dBrn power influence (Accuracy: ±2 dB); impedance options: 600 Ω, 900 Ω, Bridged
• VF Loss: Signal level -40 to +10 dBm (Accuracy: ±0.5 dB to ±2.0 dB); frequency 100 Hz to 20 kHz (Accuracy: 0.1% ± 2 Hz)
• WB Noise/Level: Impedance options: 100 Ω, 135 Ω, 1 MΩ, Bridged
– Key Features
• Weather-resistant handheld design with high-resolution backlit LCD and adjustable contrast
• Graphical operator prompts and test result display
• On-line help system and internal results storage (text and graphical formats)
• RS-232 serial interface for PC connectivity, printer output, and firmware updates
• Battery: 16-hour runtime; 2 to 3-hour recharge cycle
• Physical Dimensions: 24.9 cm × 13.5 cm × 8.1 cm (9.8″ × 5.3″ × 3.2″)
• Weight: 1.81 kg (4.0 lbs)
– Typical Applications
Copper pair qualification, fault location on analog and digital loops, noise analysis, load coil detection, and split measurement on telecommunications networks.
