Descripción

Model 2755 measures resistances from 1 &Omega, to 10 M&Omega, by operation of dials and switches. Batteries and a galvanometer are self-contained. The front control panel is provided with power and galvanometer circuit selectors, one ratio arm, and four measuring dials. Model 2755 is also equipped with a Murray and Varley Loop Tester for convenient location of line faults such as shorts and grounds in power, telephone, telegraph, and signal cables. No auxiliary attachment required Galvanometer with a built-in protection circuit Compact, lightweight (2 kg) Built-in Murray & Varley loop tester
Specifications
Dimensions 226(W)?182(H)?92(D)mm, excluding protrusions 8.90 ? 7.17 ? 3.60 in.
Weight Approx. 2.0kg 4.4 lbs
Measuring Range 1.000&Omega, to 10.00M&Omega,
Measuring Arm x 1m&Omega,, x 10&Omega, + 10&Omega, x 10 + 100&Omega, x 10 + 1000&Omega, x10 (min. one step: 1&Omega,)
Ratio Arms x 0.001 x 0.01, x 0.01, x 0.1, x 1, x 10, 100, x 1000 (M10, M100, M1000 Murray & Varley loop testing)
Accuracy Range, ±0.1% of reading on 100&Omega, to 100k&Omega, Range, ±0.3% of reading on 10&Omega, to 1M&Omega, Range, ±0.6% of reading on 1&Omega, to 10M&Omega, Range
Temperature Coefficient of Resistance Elements ±0.5 x 10-5 /°C at ambient temperature of 5 to 35°C (41 to 95°F), ±2 x 10-5 /°C at ambient temperature of 20 to 35°C (68 to 95°F)
Galvanometer (Built-In) Sensitivity 0.9 &mu,A/div, Internal Resistance - Approx. 150&Omega,, External Critical Damping resistance - Approx. 800&Omega,, Period - within 1.5 Seconds
Galvanometer Power Source Three 1.5V batteries (built-in)
Operating Temperature Range 5 to 35°C (41 to 95°F)
Humidity Range 85% Max., Relative Humidity
Outer Case ABS Resin
Current Rating 0.01A at x 10 (1000&Omega,) 0.1A at x 1 (100&Omega,) 0.3A at x 0.1 (10&Omega,) 10A at x 0.0001 (0.01&Omega,) 1A at x 0.01 (1&Omega,) 3A at x 0.001 (0.1&Omega,)
Accessories Supplied at No Extra Cost Carrying Case
''