Gas Measurement Instruments - GMI

Detection, Protection, Innovation

Gasurveyor 11-500

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 rechargeable batteries
  • Optional gas alarms (not recommended if using as a purge instrument).

The two-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.

Call our sales team today on +44 (0) 141 812 3211.

  • 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 MED Approved
 

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 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
  • Bar hole survey
  • Gas/air or gas nitrogen air purging
  • Gas escape detection
  • Petroleum installations
  • Hot work permitting
  • Confined space (only hydrocarbon and oxygen gases)