Description: Model SD-120 holiday detector conforms the pipeline field proven cases with advanced technology in solid-state circuitry that is simplified and more efficient with reliability. Its range of voltage from 8 kV to 30 kV in 12 steps allows to set the voltage exactly to the desired level for the coating under inspection, any pipe size from 2" up to 60" whatever the coating may be - somastic, tar, asphalt extruded coats, tapes or thin film epoxy coating; one has the control of voltage setting that is required; interchangeable batteries easily slip into position with a snap that announces positive contact, and a secure lock in position; two batteries and a universal charger are part of the package, for continuous service, one battery is kept for charging while the other powers the unit; and more efficient circuitry means reduced current drain and prolonged battery life and cost saving. Specifications: operated by single 6 V, 4 AH maintenance free battery; output voltage 8 kV to 30 kV pulse type; size-7" (W) x 8.5" (L) x 2.5" (H); and weight with battery approximately 2.00 kg. Advantages include light weight; insulated box (shock proof); and unless connected to earthing connection the instrument will not operate, hence saving the power and life of battery.
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