Product
SD-21/SD-21+
- Inspecting and monitoring of corrosion on steel structures and underground pipelines
- Cathodic Protection Monitor is the only device that integrates all the following measurements in one instrumentation: voltage, current, ground resistance, and frequency
- Single device offers cost-effective solution and maximum portability
- Built-in Printer
- Ground resistance testing (Optional)
- Joint development with Korea Gas Safety Corporation (KGS)
- Awarded “The Grand Prize at New Technology Excellence Korea”
| Specifications | ||
|---|---|---|
| Measuring Range (Accuracy) | Voltage | DC 0~3,999 mV DC 0~399.9V AC 0~599.9V (DC: ±0.4%, AC: ±1%) |
| Current | 0~1,999 Ma (±1%) | |
| Resistance | 0~1,999 Ω 0~1999 MΩ (±0.5%) |
|
| Frequency | 0~9,999 Hz 10~50 kHz |
|
| LCD display | Max, Min, Average | |
| Input Impedance | 100 MΩ | |
| Printer | Built-in | |
| Optional Function | Ground Resistance Test 0~200Ω (0.1Ω) 200~2,000Ω (1Ω) |
|
| Dimention | 195 (W) X 85 (D) X 40 (H) | |
The Cathodic Protection Monitor is the first product Sundoo has ever developed and localized in Korea. This instrument is used for measuring electric field potential for the purpose of corrosion prevention on buried pipelines. SD-21 shows an outstanding performance track record over other competitors and has set the high-water mark for accuracy and reduction of distorted readings. The superiority of SD 21 has been well established by its ability to measure voltage, current, earth resistance, and frequency concurrently. The device does exceptionally well in the granite environment of Korea which requires input impedance 100 ㏁, setting it apart from its competitors.