In accordance with the Gascoseeker-500, the ppm Gasurveyor-500 has the following additional features: automated zero during start-up, manually selectable ppm and search ranges.

The ppm Gasurveyor-500 is easy to use, with operator training being conducted quickly and it is also fully compatible with our range of calibration software and equipment.

性能：

• Fast response search mode to locate ppm level leaks very quickly
• Automatic hydrocarbon range selection for LEL and Vol %
• Manual selection of ppm and search mode
• Simple 2-button operation, allowing user access to all features
• Automatic zero
• Audio/visual Geiger function (ticker) for leak detection
• Hydrocarbon resolution to equivalent of 5 ppm methane
• Accurate, robust and extremely reliable
• Integral pump with flow-path protected by water filter
• Rugged carbon loaded polypropylene case, sealed to IP54 rating and suitable for outdoor use
• LCD with backlighting, which displays the current gas readings (in both digital and analogue format), together with operational and status information
• Can be checked/calibrated via an infra-red link to GMI Auto Test Calibration Unit.
• Comprehensive range of accessories, including swan necked probe, bellows cup probe, etc.
• ATEX approved
• 技术参数：

• Measuring Ranges	Resolution
  SEARCH - Enhanced ppm 0 - 1000 ppm 0 - 99% LEL 0 - 99% Vol Gas	SEARCH - Enhanced ppm 0 - 1000 ppm 0 - 99% LEL 0 - 99% Vol Gas	5ppm 0.1% 1%
  Certification	Environment
  ATEX UL CSA IECEx MED Download Product Datasheet for Details	Temperature Limits: - 20 Deg.C to + 50 Deg.C (- 4 Deg.F to + 122 Deg.F) Humidity: 0-95% RH non-condensing
  Power Supply	Sampling System
  Alkaline: approx. 15 hours' run-time (NiCd) Rechargeable: approx. 9 hours' run-time	Integral pump with flow fail sensor Sample path protected by hydrophobic filter and auto pump switch off
  Physical Properties
  Dimensions: 180 (H) x 95 (W) x 105 (D) mm 7.1 (H) x3.7 (W) x 4.1 (D) in. Weight: 1.2 kg (2.5 lbs) with alkaline batteries	Display: LCD containing: Analogue display scaled 0-10, 0-100, 0-1000, 0-10000 4-digit digital display 3-character range indication Operational flags Construction/ Protection Rating: Moulded polypropylene case protected to IP54

• 应用：

• Leak detection
• Bar hole survey
• Gas escape detection
• Hot work permitting
• Leak source detection