Laser HUNTER - 251220

Variant:

Highly sensitive and selective gas detection & gas measurement device with laser technology for the inspection of underground gas pipes using suitable probes (e. g. carpet probe). The device can also be used for the vehicle-based pipeline inspection. With built-in diaphragm pump, wireless data transfer and rechargeable Li-Ion battery. One out of two different laser modules can be assembled: - single laser module for methane or - dual laser module for methane & ethane Moreover, the device can be equipped with additional sensors to enable further applications. The following applications are possible: - Testing of underground pipes - Testing of exposed pipes in buildings or outdoors - Testing of soil air for localisation (optional) - Purging of gas pipes (optional, only in combination with soil air testing) - Quantification in underground or above-ground installations (optional) - Recording of methane peaks (optional) - Gas analysis (with dual laser module) Operating time: up to 10 hours Measurement range: depending on built-invsensors Dimensions (LxWxH): 143 x 240 x 85 mm Weight: 2.1 kg Temperature ranges: 0 °C to 40 °C (dual laser module) -10 °C to 50 °C (single laser module)

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Description

The Laser HUNTER is a highly sensitive and selective LDAR (leak detection and repair) gas detection device for the systematic pipe network inspection of buried gas pipelines. Due to the innovative laser technology, cross-influences caused by humidity or exhaust gases are excluded. The laser module is available in two variants. In the dual version, the sensor can be used for a quick and uncomplicated differentiation between natural gas or digester gas (ethane analysis) to avoid time-consuming and costly pinpointing in the case of digester gas. If desired, the device can be equipped with additional sensor technology to enable further applications in the course of pipe network inspections. So you have everything in one device!

Would you like to see the Laser HUNTER in action, do you have any questions, or would you like a personalised offer?

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Features

Innovative laser technology as single laser (CH₄) or dual laser (CH₄ & C₂H₆)
Reliable measurement of smallest gas concentrations, no cross-influences due to humidity or exhaust gases
Selective measurement of methane and ethane for rapid differentiation between natural gas and digester gas
Individual configuration of the sensor technology enables different areas of application
Functions and menu according to DVGW worksheet G 465-4
Fast and uncomplicated display test
Calibration and adjustment directly on the device
Operating time of at least 10 hours for an intensive working day
Wireless data transfer for quick and easy data transmission
Connection to Esders Pi NOTE (GIS software) available for complete documentation

Laser HUNTER as the core element — Modular system for gas leak detection and quantification

The Laser HUNTER is our core detection device for leak detection and repair (LDAR) as well as gas concentration measurements in gas pipeline networks.

In the field of above-ground leak detection, the system allows for flexible application in accordance with DVGW Regulation G 465-1. Since its revision in 2019 (current draft from 2025), various procedures for above-ground inspection have been approved, which can be efficiently implemented using our modular system.

Thanks to its modular design, the Laser HUNTER can be combined with different systems depending on the application scenario:

• Carpet probe (TS14) and bell probe for manual inspection

• E-scooter with carpet probe for urban routes

• Quad with suction bar and pump unit for hard-to-reach terrain

• GasCar Laser HUNTER as a vehicle-mounted solution for efficient area inspection

This ensures accurate and standard-compliant gas pipeline network inspection in a wide variety of environments, whether in urban areas or across extensive network structures.

Quantification of methane emissions

Once the leak has been located, the next step is to quantify it, which is why the modular system can be expanded to cover these aspects as well. The quantification of leaks has become increasingly important, particularly in the context of the EU Methane Regulation (EU 2024/1787). Network operators and utilities are obliged to systematically record and reduce methane emissions, as well as to record and report the volume of emissions released.

DVGW G 465-5 describes the structured procedure for the detection, quantification and identification of emissions in the gas distribution network up to 16 bar.

The metrological quantification is defined in the DVGW G 425 series of standards.

The modular system offers specialised additions for the practical implementation of quantification:

• Bagging probe for applying the bagging method in accordance with DVGW G 425-3 for above-ground pipelines

• Vakumobil for quantifying methane emissions from underground pipelines in accordance with DVGW G 425-2

How do I perform a 10 ppm test with the Hunter or Laser Hunter?

Technical Data

Display	LCD graphic display 128 x 64 Pixel, illuminable Display of measured value, maximum value and bar graph
Power supply	Lithium-Ionen 7,2 V 6.700 mAh
Charging	Charging cradle supplied by 12 Volt or 230 Volt approx. 5 hours
Operating time	> 10 hours (without backlight)
Operating temperature	0 °C tot +40 °C (dual laser module) -10 °C to +50 °C (single laser module)
Data Store	> 2.000.000 measurement values (depending on the duration of the measurement)
Protection category	IP 52
Dimensions	230 x 115 x 85 mm without couplings
Weight	ca. 2.100 g
Measurement principle	Laser, infrared, electrochemical,
Measuring range/ Display range	0 to 1.000 ppm CH₄, Resolution: up to 0,1 ppm (Single Laser) / 0,5 ppm (Dual Laser) 0,1 to 2,2 Vol.% CH₄, Resolution: 0,01 Vol.% 15 to 1.000 ppm C₂H₆, Resolution: 5 ppm 0,1 to 100 Vol. CH₄, Resolution: 0,1 Vol.%^* 0 to 20 Vol.% CO₂, Resolution: 0,1 Vol.%^* (Display range up to 100 Vol.%) 0 to 25 Vol.% O₂, Resolution: 0,1 Vol.%^*
Pump capacity	> 80 l/h, > 300 mbar

^{* Optionally configurable}