CEM DT-9052 Earth and Continuity Tester

The CEM DT-9052 Earth and Continuity Tester is a sophisticated tool designed for testing the integrity of grounding systems and ensuring electrical continuity in various installations. This device operates on the principle of “fault loop” measurement, specifically tailored for installations where the neutral is as indicated in accompanying diagrams. It is a valuable tool for both residential and commercial electrical systems.

One of the standout features of the DT-9052 is its ability to measure earth loop impedance without tripping 30mA circuit breakers. This is crucial for testing in live environments, as it ensures that the system remains operational during the measurement process. The tester emits a loop measurement current that is below the drop-out threshold of these breakers, thereby preventing any unnecessary power disruptions.

The tester provides precise measurements of earth resistance, displayed on a three-and-a-half-digit LCD screen, which ranges from 0 to 1999Ω with a resolution of 1Ω. The device updates this measurement every 1.5 seconds, allowing for real-time monitoring and quick diagnostics.

Enhancing the usability of the DT-9052 is its two-color backlit LCD display, which offers clear visibility under varying light conditions. This feature makes it easier for technicians to read measurements in dimly lit areas or during nighttime operations.

From a safety and compliance standpoint, the DT-9052 meets high standards. It is designed in accordance with IEC 61010-1 and EN 61557-4, ensuring that it is safe for use in installation category III environments. This category typically includes fixed installations such as distribution boards and circuit breakers connected to the public low-voltage power supply.

Additionally, the tester is rated as Class II IP40 and IK06, indicating a good level of protection against ingress of solid objects and mechanical impacts, although it is not protected against water ingress. Its robust design makes it suitable for use in a variety of challenging environments, ensuring reliability and durability in professional settings.

CEM DT-9052 Earth and Continuity Tester Specifications

•  Accuracy:+/-(3%+1dgt)for pure resistance(range 0-2000Ω at 23ºC+/-5ºC)
• Operating voltage:230V(Ph/N)-10/+6%
• Operating frequency:50/60Hz
• Weight:340g
• Size:210 x 72 x 50mm