DILO Launches Advanced SF6 Leak Detector for Industrial Precision

October 27, 2026
Ultimo blog dell'azienda DILO Launches Advanced SF6 Leak Detector for Industrial Precision

RPM Test Equipment Solutions Inc. has introduced the DILO 3-033-R002, a sulfur hexafluoride (SF6) leak detector drawing on more than 30 years of DILO gas-detection manufacturing experience. The instrument uses negative corona technology and is positioned for industrial users that require high stability and sensitivity when tracing leaks.

Core technology and performance

The detector is built around an advanced microprocessor architecture that applies digital signal processing to manage signals from the circuit and the sensing probe. Compared with earlier models, the circuit layout has been simplified by close to 40 percent, a change the company says improves stability while lifting overall performance.

The microprocessor monitors the sensing probe and battery voltage 2,000 times per second, compensating for signal fluctuation in real time so that readings remain dependable in demanding environments.

Features and operation

The instrument carries several functions intended for differing industrial conditions:

  • Multi-level sensitivity: seven sensitivity settings, with level 7 delivering up to 64 times the sensitivity of level 1.
  • Indication system: a three-colour LED display showing leak size, sensitivity level and battery charge.
  • Automatic ambient compensation: an integrated automatic circuit and reset key that suppress background SF6 concentration so that the actual leak is isolated.
  • Alarm mechanism: 18 alarm levels that progress through green, orange and red to guide the user toward high-concentration sources.

Industrial applications

Beyond SF6 detection, the negative corona technology supports the detection of a range of other gases and chemicals:

Application area Detectable gas or substance
Power equipment maintenance SF6 gas
Medical sterilisation equipment Ethylene oxide
Fire suppression systems Halon gas
Industrial cleaning Perchloroethylene and other dry-cleaning solvents
General industry Halogen gases containing chlorine, fluorine or bromine

Design and ergonomics

The 3-033-R002 uses a new housing design intended to improve grip and handling. The layout has been revised so that all visual indicators remain directly visible while the unit is in operation.

Tactile buttons are intended to raise operating efficiency and reduce the risk of incorrect input during inspections.

Frequently Asked Questions

How does the DILO 3-033-R002 isolate a leak when background contamination is present?
The device includes an automatic circuit and a reset function key. Using this function, the operator can make the instrument disregard the current background concentration so that it responds only to leak sources above ambient level, helping to pinpoint the location precisely.
What do the three-colour LED indicators show?
The green, orange and red LEDs provide progressive indication of leak intensity. As the alarm level rises, the light changes colour according to concentration, guiding the user visually toward the source. The same lights also display the sensitivity level and battery status.
Is the instrument suitable for industrial gases other than SF6?
Yes. It can detect various halogen gases containing chlorine, fluorine or bromine, as well as ethylene oxide and perchloroethylene, a solvent commonly used in dry cleaning. Specific suitability should be checked against the gas compatibility list in the operating manual.