Four-gas personal explosive gas meter Tetra 3

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Model	Tetra 3
Manufacturer	Crowcon
Power supply
Weight
Size
Condition	Còn hàng
Warranty	12 tháng

Details description
Specifications
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Accessory

I. Specification of the Tetra 3 four-gas personal explosive gas meter

Generality:

The Tetra 3 Analyzer, Measure, and Detector has a detection range that includes the four most common types (carbon monoxide, methane, oxygen, and hydrogen sulfide), but also an extended range: ammonia, ozone, sulfur dioxide, Filtered CO 2 (for steel mills) and IR carbon dioxide (safe area use only).

Four-gas personal explosive gas meter Tetra 3

Strong:

Tetra 3 Crowcon four-gas personal explosive gas meter and impact-resistant design provides additional shock and vibration resistance - providing protection in the harshest environments
Water and dust resistant to IP65 and IP67 . standards
Can be submerged in water.

Effective warning:

95dB audible alarm - ensures a clear warning that facilitates timely evacuation from hazardous areas
Vivid red/blue visual alarm
Vibration alarm.

Reliable:

Proven software operation and sensing technology - The Crowcon Tetra 3 Crowcon 4 Gas Meter provides reliability you can count on and has the power to protect you for an extended shift.
Lithium-ion battery provides more than 14 hours of continuous operation from a single charge with no memory effect.

User-friendly:

One-button operation for all functions - can be operated with gloved hands
Top, backlit display shows all gas readings, diagnostics and battery life - 'at a glance' operational status.

***See more of GMGA's versatile handheld gas detector - Crowcon Vietnam at: https://gmga.vn/en/danh-muc/analytical-equipment/gas-analysis-equipment/portable-gas-analyzer/

II. Specifications of Crowcon Tetra 3 four gas meter

Specifications
Size	114 x 71 x 48mm (tapers to 20mm) (4.5 x 2.8 x 1.9ins)
Weight	295g (10.4oz)
Alarms	95dB multiple alarm sounds allow selection of distinctive tones for different alarm levels
Alarms	Internal vibrating alarm
Display	Graphic LCD with backlight, giving simultaneous display for all gas channels. Graphic symbols for battery (with proportional indication of remaining operation time), healthy operation or fault warning. Start up indication when calibration is due, overdue, or service required.
	Normal display: Real time gas concentration levels
	Display recall: Peak readings and TWA
Data logging	Timed: 50 hours at 1-minute data rate (>12,000 data logs of 4 channels)
	Threshold: Starts after adjustable pre-set level
	Event: >5,000 events
Event logging	Alarm, over range, calibration, bump, on/off, TWA, 1000 events
Battery	Rechargeable Li-ion battery
Operating time	Based on four-gas instrument fitted with flammable sensor: A 5-hour charge from flat provides at least 12 hours of continuous use.A 12-hour charge provides at least 14 hours of continuous use
Sampling	Diffusion or hand aspirator
Operating temperature	-20°C to +55°C (-4°F to +131°F)
Storage	-25°C to +65°C (-13°F to +149°F)
Humidity	15-95% RH@ 40°C non-condensing
Ingress protection	IP65 and IP67
Approvals	ATEX II 2G Ex ia db IIC T4 Gb (-20°C ≤ Ta ≤ +55°C)
	BASEEFA05ATEX0187
	IECEx Ex db ia IIC T4 Gb (-20°C ≤ Ta ≤ +55°C) BAS05.0059
	CSA Class I Division 1 Groups A, B, C and D
Safety standards	EN60079-0, EN60079-11, EN60079-1
	CSA22.2, 152
	EN50270, EN50271, EN50104, EN45544, EN60079, IEC61508
PC Interface	RS232 connection from interface module in charger
PC Interface	RS232/USB converter available
Calibration	Can be routinely calibrated using Portables PC software or Crowcon Checkbox IMH
Accessories	Integral alligator clip
	Optional accessories:
	Universal harness plate, shoulder strap, chest harness, aspirator assembly (flow plate, bulb and 2m/6ft tubing), fixed and telescopic sample probes, and an in-line water trap
Charging	Single way drop-in charger with UK, EU or US plug or in-line 110V/220V supply
	Single way drop-in charger with options as above including PC interface
	5 way multi-charger with universal power supply
	Vehicle adapter for in-vehicle charging
	Universal charger for vehicle, wall and desk mounting with a multi-region plug (supplied with EU/UK/US/Australian inserts) and status indication
Crowcon Connect Compatible?	Yes

Gases and Ranges
Gas	Range	Typical Alarms
Flammable	0-100% LEL	20% LEL
Oxygen	0-25%	19/23.5% volume
Hydrogen sulphide (H2S)	0-100ppm	5ppm
Carbon monoxide (CO)	1-500ppm	30ppm
Sulpher dioxide (SO2)	0-20ppm	1ppm
Ozone (O3)	0-1ppm	0.1ppm
Ammonia (NH3)	0-100ppm	25ppm
*Carbon dioxide (CO2)	0-5%	0.5 % volume