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The Tempo E2520 and E2521 are hand held, battery powered, solid state time domain reflectometers that accurately locate faults on cables. They can be used on most types of cable from telecommunications tables, such as twisted pairs and coax, to power distribution cables. The Tempo E2520 and E2521 are supplied in a rugged padded pouch with provision for carrying the test leads and instruction manual in the rear of the compartment. The batteries to power these instruments are housed in a compartment in the case bottom, accessed by a lid with two retaining screws. The instruments can be powered by manganese-alkali or nickel-cadmium rechargeable batteries. Both instruments in the range mode have a balance control that can be adjusted, using the thumb wheel, to cancel out the transmitted pulse.
Features
Specifications
Electrical
Accuracy ±2% of rangeRanges Auto or fixed E2520: 300', 900', 3000', 9000' and auto
E2521: 30', 90', 300', 900' and autoResolution 1% of rangeInput Protection 250V AC/DCVelocity Factor
Variable from 0.01 to 0.99 in steps of 0.01
Mechanical
Dimensions 7.5 x 3.5 x.2.25 inchesWeight 19 ouncesCase Material
ABS and PolycarbonateBatteries Six, AA-size, manganese-alkali or nickel-cadmium cellsBattery Consumption without backlight E2520: 80mA nominal
E2521: 100mA nominal
Output Pulse
Amplitude 5 volts peak to peak into open circuitImpedance E2520: 120
E2521: 50Pulse Width Automatically varied by software for range selectedUpdate Rate Once per second for 5 minutes after last key depressionPower Down Automatic after 5 minutes with no key depression
Tempo Research E2521