HomeGas AnalysersSafety › Crowcon Tetra Personal Monitor for Oxygen, Toxic and Flammable Gases


Crowcon Tetra Personal Monitor for Oxygen, Toxic and Flammable Gases


Designed using the latest technologies, Tetra is simple to use, reliable, robust and fully weather protected. Single button operation and intelligent sensor modules guarantee simplicity and flexibility of use. The shockproof internal construction and self checking software assure reliable gas detection in the most arduous of environments.

Reliable

  True single button operation – the most user friendly product available
  Li-ion rechargeable battery gives full 12 hours operation
  Easy to read backlit graphic display for gas readings and diagnostics
  Simple indications of operating status can be viewed at a glance
  30 day countdown warning of calibration due date

Flexible

  Fully interchangeable intelligent sensor modules
  Available with internal electric sampling pump
  Rechargeable and alkaline battery versions available

Robust

  Tough plastic construction with flexible internal assembly to resist shock and vibration
  Overmoulded rubber for added protection
  Water and dust resistant to IP65


Assurance

  94dBA audible alarm
  Piercingly bright dual red/blue visual alarm
  Internal vibrating alarm
  Two levels of instantaneous alarm
  Time weighted average alarm for 8 hours and 15 minute averages


Data Sheet
User Manual

Ordering Information


Tetra; non-pumped, rechargeable

TLU-01-XX-C 4 gas lithium ion - CH4 % LEL, O2, H2S, CO
TLU-03-XX-C 3 gas lithium ion - CH4 % LEL, O2, H2S
TLU-04-XX-C 3 gas lithium ion - CH4 % LEL, O2, CO
TLU-05-XX-C 2 gas lithium ion - CH4 % LEL, O2

Tetra; pumped, rechargeable

TLP-01-XX-C 4 gas lithium ion - CH4 % LEL, O2, H2S, CO pumped
TLP-03-XX-C 3 gas lithium ion - CH4 % LEL, O2, H2S, pumped
TLP-04-XX-C 3 gas lithium ion - CH4 % LEL, O2, CO, pumped
TLP-05-XX-C 2 gas lithium ion - CH4 % LEL, O2, pumped

Tetra ; common configurations

TLU-02-XX-C 4 gas lithium ion - CH4 % LEL, O2, Cl2, SO2, non-pumped
TLU-06-XX-C 2 gas lithium ion - CH4 % LEL, Cl2 non-pumped

Tetra; i-module Sensor Assemblies

S011424 0-100% LEL methane
S011436 0-100% LEL propane
S011437 0-100% LEL pentane
S011439 0-100% LEL butane
S011440 0-100% LEL ethylene
S011460 0-100% LEL hydrogen
S011741 0-100% LEL flammable (unfiltered) use for alcohols, ketones and general solvents
S011949 0-100% LEL methane (Australian configuration)
S011950 0-100% LEL pentane (Australian configuration)
S011423 0-25% vol. oxygen
S011421 0-100ppm hydrogen sulphide
S011912 0-500ppm hydrogen sulphide
S011422 0-500ppm carbon monoxide
S011463 0-1500ppm carbon monoxide
S012037 0-20ppm chlorine† (UK alarms)
S011428 0-20ppm chlorine†
S011435 0-100ppm ammonia
S011438 0-1000ppm ammonia
S011425 0-20ppm sulphur dioxide
S011432 0-1ppm ozone† (not for pumped units, includes specific flow plate)
S011426 0-10ppm nitrogen dioxide†
S011427 0-20ppm nitrogen dioxide†
S011429 0-2000ppm hydrogen
S011430 0-25ppm hydrogen cyanide
S012036 0-5ppm phosphine - UK alarms
S011431 0-5ppm phosphine
S011433 0-10ppm hydrogen fluoride†
S011852/M 0-100ppm nitric oxide
S011464 0-1ppm phosgene†
S011994/M 0-10ppm ethylene oxide
S012171/M 0-5% CO2 IR (uncertified safe area only)0-5% CO2 IR (uncertified safe area only)0-5% CO2 IR (uncertified safe area only)
E07612 Flexible connector (minimum order quantity 10)
M04682 Sensor sealing ring (minimum order quantity 5)
M04431 Sensor retaining ring (minimum order quantity 10)

Tetra Battery Chargers

E01866 Wall socket charger 110V 60Hz US pins (limited availability - check prior to quotation)
E011095 Multi-region charger (UK, US, EU, AU)
C01866 230V 50/60 Hz in-line charger - no plug
C01867 115V 50/60 Hz in-line charger - no plug
C01879 90-260V 50-60 Hz in-line with IEC input
C02098 Car charger

Tetra Accessories

C01847 Aspirator assembly for non-pumped units
C01846 Aspirator assembly for pumped units comes with 2m hose
C01841 Flow plate and gasket
C01097 Sample probe, 1m
C01757 Telescopic aspirator probe
M04032 Aspirator hose per metre
FIL29001 in-line water trap/particulate filter inc. filter element
FIL99008 Filter element for FIL29001, price per element (minimum order quantity 10)
C03328 Drop line, 6m
C01842 Universal harness plate
C01844 Chest harness strap kit (consists of two straps)
C01863 Chest harness kit (includes harness plate and straps)
C01843 Shoulder strap
C01845 Carry case (rechargeable version)
C01888 Carry case (non-rechargeable version)
E07985 IR adapter for PC (plugs into RS232 port)
C02097 USB to RS232 adapter
C01832 Portables PC software CD
C01876 Tetra gas test and calibration accessory kit for pumped Tetra (does not include gas cylinder) pre 1V08 software version
C01893 Tetra gas test and calibration accessory kit for pumped Tetra (does not include gas cylinder) post 1V08 software
C01877 Tetra gas test and calibration accessory kit for non-pumped Tetra (does not include gas cylinder)
C01874 Calibration flow plate for pumped Tetra pre 1V08 software
C01875 Calibration flow plate for non-pumped Tetra
C01873 Gas test kit magnet
C011005 Calibration flow plate for pumped Tetra post 1V08 software
C02100 Carry case for gas test kit
M04857 Tetra bench holder

Tetra Spares

M07237 Tetra manual English
M07238 Tetra manual American
M07239 Tetra manual Spanish
M07240 Tetra manual German
M07241 Tetra manual French
M07242 Tetra manual Dutch
M07243 Tetra manual Italian
M07244 Tetra manual Brazilian Portuguese
M04001 Aspirator bulb
S011415 Battery holder
M04794 Battery holder enclosure
M040032 Charging socket (minimum order quantity 10)
M03776 M2x4 Pozidriv (minimum order quantity 10)
M05834 3D label, Crowcon (minimum order quantity 8)
M04808 Dummy sensor (minimum order quantity 4)
E07612 Flexible connector (minimum order quantity 10)
E01633 Fuse 125 mA encapsulated red
M04682 Sensor sealing ring (minimum order quantity 5)
S011399/1 Lower case assembly non-rechargeable
S011394/1 Lower case assembly rechargeable
E01824 LCD display
S011340 Main and display PCB assembly
S012976 Tetra ozone flow plate
S011406 Bag of allen keys
M03762 Main case bolt (minimum order quantity 10)
S011396 Sensor plate assembly, non-pumped
M04811 Outlet gasket (minimum order quantity 10)
S012054 Spare Tetra pump and sensor plate assembly
S011330 Rechargeable lithium ion battery assembly
M04431 Sensor clip retaining ring (minimum order quantity 10)
S011398 Sensor cover filter assembly††
M04789†† Gore-Tex™ filter 2 needed per unit. (minimum order quantity 10)
M04880†† Filter retaining bracket
M04796 Sensor plate gasket (minimum order quantity 5)
M03735 Sensor plate hex screw (minimum order quantity 10)
M04795 Sensor plate seal (minimum order quantity 10)
S012161 Sounder (minimum order quantity 5)
C01864 Strap for universal harness plate
S011397/1 Top moulding
S011798/1 Lower case assembley all orange (USA only)
S011799/1 Top moulding orange (USA only)
M051015 EMC shield label
M04862 Sensor cover plate orange (USA only)

Tetra; i-module Sensor Assemblies

S011424 0-100% LEL methane
S011436 0-100% LEL propane
S011437 0-100% LEL pentane
S011439 0-100% LEL butane
S011440 0-100% LEL ethylene
S011460 0-100% LEL hydrogen
S011741 0-100% LEL flammable (unfiltered) use for alcohols, ketones and general solvents
S011949 0-100% LEL methane (Australian configuration)
S011950 0-100% LEL pentane (Australian configuration)
S011423 0-25% vol. oxygen
S011421 0-100ppm hydrogen sulphide
S011912 0-500ppm hydrogen sulphide
S011422 0-500ppm carbon monoxide
S011463 0-1500ppm carbon monoxide
S012037 0-20ppm chlorine† (UK alarms)
S011428 0-20ppm chlorine†
S011435 0-100ppm ammonia
S011438 0-1000ppm ammonia
S011425 0-20ppm sulphur dioxide
S011432 0-1ppm ozone† (not for pumped units, includes specific flow plate)
S011426 0-10ppm nitrogen dioxide†
S011427 0-20ppm nitrogen dioxide†
S011429 0-2000ppm hydrogen
S011430 0-25ppm hydrogen cyanide
S012036 0-5ppm phosphine - UK alarms
S011431 0-5ppm phosphine
S011433 0-10ppm hydrogen fluoride†
S011852/M 0-100ppm nitric oxide
S011464 0-1ppm phosgene†
S011994/M 0-10ppm ethylene oxide
S012171/M 0-5% CO2 IR (uncertified safe area only)



Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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Keison International Ltd. trading as:
Keison Products, VoIPon Solutions & 4Gon
keison VoIPon Solutions 4Gon