Tempo Research E2520

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