SD-21

Cathodic Protection Monitor (CP-monitor)

 

- Test corrosion conditions of various constructions and steel pipes

- Joint development with KGS(Korea Gas Safety Corporation)

- Simultaneous measure of Voltage, electric current, ground resistance, frequency(the world's first)

- Easy measurement of alternative current interference and earth specific resistance

- Built-in printer type

- Earth Resistance Tester(Option)

※ Win the grand prize in '2007 Korean technology frontier award'

 

Specification

Division

Details

Reference

Measuring range

Voltage

DC 0 ~ ±3,999 ㎷

DC 0 ~ ±399.9 V

AC 0 ~ ±599.9 V

Wide Various

Current

0 ~ 1,999 ㎃

Resistance

0 ~ 1,999 Ω

0 ~ 19.99 ㏁

Frequency

0 ~ 9,999 ㎐

10 ~ 50 ㎑

LCD display

Max, Min, Average

 

Input impedance

100 ㏁

Accurate measure

on any kinds of soil

Printer

Internal

1, 5, 10 Times

Optional Function

Earth resistance

Measurement mode

0 ~ 200 Ω(0.1 Ω)

200 ~ 2,000 Ω(1 Ω)

Dimension

195X40X85mm

 

Description

SD-21 is an equipment to measure [cathodic potential] spilling for corrosion prevention of gas pipe that is laid under the ground . By 100 ㏁ input impedance, input resistance can be measured exactly without error in some topography because granite topographical feature was applied according to a lot of domestic real conditions(Generally other equipments use 1 ㏁ or 10 ㏁. Place that land resistance is high is big error).

 

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