The LDZL Stored Stray Current Tester is a high-performance and multifunctional testing instrument designed specifically for anti-corrosion testing of underground metal pipelines and structures. This instrument is capable of simultaneously measuring the AC potential, DC potential, and DCVG of pipelines, making it an ideal tool for detecting stray currents in fields such as urban rail transit, oil and gas pipelines, electrified railways, oil and gas depots, and mines. By adopting advanced synchronous data acquisition technology and GPS positioning function, multiple instruments can achieve synchronous measurement in different locations, ensuring the accuracy and reliability of data.
| Measurement accuracy | 0.001V |
| Measuring range | DC voltage -40V～+40V; AC voltage 0-400V, auto range |
| DCVG range | -25V～+25V, auto range |
| Input impedance | 10MΩ |
| Operating time | >48 hours |
| Time synchronization error | less than 50μs when GPS signal can be received, less than 1s cumulative error in 24h without GPS signal; |
| Sampling rate | 1～25 times/sec (settable) |
| Screen display | 320 × 320 LCD large screen display |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
Multi parameter synchronous acquisition: The instrument is capable of simultaneously acquiring AC and DC potential data, and supports measurement of ground potential gradient (DCVG), providing comprehensive information on stray current interference.
GPS synchronous positioning: Using GPS clock signals to achieve synchronous data collection of multiple instruments at different locations, facilitating data comparison and analysis.
Real time waveform display: The instrument is equipped with a 320 × 320 large screen LCD display, which can display waveform diagrams of AC and DC potentials in real time, intuitively showing the interference state.
Long range lithium battery pack: Powered by a lithium battery pack, it can be used for more than 48 hours on a single charge, meeting the needs of long-term field operations.
Portable design: small in size, light in weight, easy to carry and operate, suitable for on-site testing in various complex environments.
Multi functional keyboard area: using T9 input method, supporting number and letter input, convenient for users to set parameters and record data.
Specialized data analysis software: The accompanying data analysis software can upload the collected data on site to the computer for further analysis and processing, and generate detailed evaluation reports.
High measurement accuracy: The instrument has high-precision measurement capability, with an AC voltage measurement range of 0-400V, a DC voltage measurement range of -40V to+40V, and a DCVG range of -25V to+25V, meeting various accuracy requirements.
Wide applicability: It is not only suitable for detecting stray currents in buried steel pipelines, but also for monitoring the anti-corrosion status of other metal structures and cables.
Safe and reliable: The instrument has comprehensive protection functions, including grounding protection, current limiting, and voltage limiting protection, to ensure the safety of users and equipment.
