Crowcon Tetra Personal 4-Gas Monitor, Lithium Ion - CH4 % LEL, O2, H2S, CO, Non-Pumped - TET02 / ABCD

TET02/ABCD Tetra Personal 4-Gas Monitor, Lithium Ion - CH4 % LEL, O2, H2S, CO, Non-Pumped by Crowcon

Tetra is a single button, reliable and robust multigas monitor with optional internal pump. Featuring intelligent sensor modules, shockproof construction and self checking software, Tetra is simple to use and assures reliable gas detection in the toughest of environments.

Simple

Single button operation
Easy to read backlit display for gas readings and diagnostics
Clear calibration due warning
Rechargeable Li-ion battery gives 12 hours of continuous operation

Alarms

Loud 94dBA audible alarm
Ultra bright dual red/blue visual alarm
Vibrating alarm

Robust

Rugged plastic housing with flexible internal assembly to resist shock and vibration
Durable over moulded rubber for added protection
Water and dust resistant to IP65

Flexible

Optional built-in pump
Rechargeable and alkaline battery versions available
Compatible with Crowcon Portables PC Software
Fully interchangeable intelligent sensor modules

Tetra Specifications:

Weight Dimensions	498g (1.1lb) Rechargeable: 122 x 128 x 57mm (4.75 x 5 x 2.25 inches) Non-rechargeable: 134 x 128 x 57mm (5.25 x 5 x 2.25 inches)
Typical Response Times (T₉₀)	Flammable 20s, Toxic gas 20s, Oxygen 10s
Audible Alarms	94dB Multiple alarm sounds allow selection of distinctive tones for different alarm levels
Visible Alarms	Dual color red/blue flashing LED in gas hazard
Vibrating Alarm	Internal vibrating alarm
Display	128 x 64 graphic LCD with backlight, giving simultaneous display for all gas channels. Graphic symbols for battery (with proportional indication of remaining operation time), pump operation, healthy operation or fault warning. Start up indication when calibration is due within 30 days, calibration overdue, or service required.
Display Mode	Normal display for real time gas concentration levels. Display recall for the Peak readings and TWA.
Datalogging	Timed datalogging: 50 hours at 1-minute data rate (>3,000 data logs of 4 channels) Event logging >1500 events
Battery Types	Rechargeable Li-ion battery Non rechargeable pack 3xAA Alkaline cells
Operating Time	Rechargeable - 12 hour minimum based on pumped four gas unit with flammable sensor
Sampling	Hand aspirator or internal electric sampling pump
Operating Temperature Range	-20°C to +55°C (-4°F to +131°F) Toxic and oxygen sensors are not rated for continuous operation at high temperatures. Consult Crowcon if operating temperatures are likely to exceed 40OC (104OF) for extended periods.
Humidity	20-90% RH
Ingress Protection	IP65
Approval Codes	Europe: ATEX II 2G Ex ia d IIC T3 Gb ( -20°C ≤ Ta ≤ 55°c) BASEEFA 03ATEX0193 International: IECEX Ex ia d IIC T3 Gb ( -20OC ≤ Ta ≤ 55Oc) BAS04.0024 North America: CSA UL/cUL Class I Division I Groups A, B, C, D, T3C
Safety Standards	Europe: EN60079-0, EN60079-11, EN60079-1, 94/9/EC North America: UL913, CSA22.2, 152 Operation Standards: EN50270, EN50271, IEC61508, EN61779, EN45544
Calibration	Tetra can be routinely calibrated manually using the menu, using Crowcon Protables PC software or automatically using Checkbox IMH.
Accessories	Tetra is supplied with an integral belt/pocket clip. Pumped units are supplied with a sampling kit (flowplate and 2m (6ft) tubing).
Optional Accessories	Universal harness plate, shoulder strap, chest harness, carry case, aspirator assembly (flow plate bulb and 2m/6ft tubing), fixed and telescopic sample probes and an in-line water trap.

Gases and Ranges:

Gas	Range	Standard Alarm (US)
Flammable	0-100% LEL	10% LEL
Oxygen	0-25%	19.5/23.5%
Hydrogen sulfide	0-100ppm	10ppm
Carbon monoxide	0-500ppm	35ppm
Sulfur dioxide	0-20ppm	2ppm
Chlorine*	0-20ppm	0.5ppm
Nitrogen dioxide	0-20ppm	3ppm
Ammonia	0-100ppm	25ppm
Ozone*	0-1ppm	0.1ppm
Hydrogen	0-1000pm	N/A
Hydrogen cyanide	0-25ppm	5ppm
Hydrogen fluoride	0-10ppm	1ppm
Phosphine	0-5ppm	0.2ppm
Fluorine	0-1ppm	0.1ppm
Phosgene	0-1ppm	0.1ppm
Carbon dioxide	0-5%	0.5%