Detection, Protection, Innovation

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Key Product Features

  • Simple 2-button operation
  • Gas/air and gas/nitrogen/air purge mode
  • Manual selection of purge mode
  • Can be calibrated via an IR link to GMI Auto Test Calibration Unit

The Gasurveyor 11-500 compliments both the Gascoseeker, Gasurveyor 3-500 and the Oxygas instruments with a similar performance, measuring % LEL and % volume flammable hydrocarbons, but with the addition of oxygen.

The Gasurveyor 11-500 is designed for either gas/air or gas/nitrogen/air purging, with the ability of the Gascoseeker and the addition to measure oxygen during a nitrogen purge.

In accordance with the Gasurveyor 3-500, the 11-500 also has the following features:  automated zero during start-up, manually selectable purge mode, optional re-chargeable batteries and option of gas alarms (not recommended if using as a purge instrument).

The 2-button operation means the Gasurveyor 11-500 is easy to use and operator training can be conducted quickly.  The rugged design allows the Gasurveyor 6-500 to be used in harsh environments.  The Gasurveyor 6-500 is also fully compatible with our range of calibration software and equipment.
 

  • Automatic hydrocarbon range selection
  • Manual selection of purge mode
  • Simple 2-button operation, allowing user access to all features
  • Automatic zero
  • Gas/air and gas/nitrogen/air purge mode
  • Hydrocarbon resolution to equivalent of 50 ppm methane
  • Accurate, robust and extremely reliable instrument
  • 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, without opening the instrument
  • Optional rechargeable batteries
  • Optional gas alarms
  • Optional calibration gases
  • Comprehensive range of accessories
  • ATEX approved

Measuring Ranges

Resolution

0-100% LEL Flammable 0.1% (0-9.9%)
0-100% Vol. Flammable
0-25% O2

LEL:  0-100%
Vol. Gas:  0-100%
O2:  0-25%

 

0.1% (0-9.9%)
1% 
0.1%
 
 

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) Re-chargeable:  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:
95 (W) x 180 (H) x 105 (D) mm
7.1 (H) x 3.7 (W) x 4.1 (D) in.

Weight:
1.2 kg (2.5 lbs) with alkaline batteries

 

Display:
LCD with backlighting
4-digit digital display plus analogue display
3-character range indication
Operational flags

Construction/Protection Rating:
Moulded polypropylene case protected to IP54

  • Leak Detection
  • Barhole Survey
  • Gas/Air or Gas Nitrogen Air Purging
  • Gas Escape Detection
  • Petroleum Installations
  • Hot Work Permitting
  • Confined Space (only hydrocarbon and oxygen gases)