The Crowcon T4 Portable Multi-Gas Detector provides effective protection against 4 common gas hazards: carbon monoxide, hydrogen sulphide, flammable gases and oxygen depletion. Now with improved detection of pentane, hexane and other long chain hydrocarbons.
Offering you compliance, robustness and low cost of ownership in a simple to use solution. T4 contains a wide range of powerful features to make everyday use easier and safer.
Crowcon T4 Portable Multi-Gas Detector
T4 is Crowcon’s personal protection solution for detecting the four most common gas hazards:
- carbon monoxide
- hydrogen sulphide
- flammable gases
- oxygen depletion
Offering you compliance, robustness and low cost of ownership in a simple to use solution. The large single buttonand intuitive menu system allows T4 to be operated wearing gloves with minimal training.
Crowcon’s toughest portable yet, T4 is durable by design and includes an integrated rubber boot as standard. An optional clip-on filter cover, which is easily removed and replaced, ensures sensors are protected in the dirtiest environments. Drop tested to 4m and well protected from water ingress through IP65 and IP67 certification, T4 allows uninterrupted working in the most demanding environments.
Now with improved detection of pentane, hexane and other long chain hydrocarbons.
T4 contains a wide range of powerful features to make everyday use easier and safer:
TWA Resume
Unique to T4, the TWA Resume function ensures toxic gas exposure is calculated accurately over an entire shift, even if T4 is switched off for a break or during travel to another site. When most portable detectors are turned off, the algorithm that assesses TWA exposure assumes that it’s the end of the shift. When turned on again, these detectors act as if it is a new work shift, ignoring all previous measurements. The TWA Resume function however, provides the option to include previous measurements from within the correct time frame.
18 hour battery
With a battery life of 18 hours, T4 allows multiple or longer shifts to be worked between recharging.
Positive Safety
Crowcon’s visual ‘traffic light’ indication, provides constant visual assurance that T4 is operating soundly and conforms to site bump test & calibration policy. The bright green and red Positive Safety LEDs are visible to all and offer a quick, simple and comprehensive indication of monitor status to both the user and others around them.
Specifications
Size: W135 x H80 x D35 mm (5.3 x 3.1 x 1.4in)
Weight: 282g (9.9oz)
Durability: Drop tested to 4m onto concrete
Alarms: Audible >95dB, Bright red/blue visual LEDs, Integrated vibrating alert
Display: Front mounted, backlit. Optional 180° flip for easy viewing whilst worn
Logging: 130 hours of data logging; Up to 3500 events
Battery: Rechargeable Li-ion, 18 hour typical runtime, 5.5 hour recharge
Operating Temperature: -20°C to +55°C (-4°F to +131°F)*
Humidity: 10 to 95% RH @ 40°C non-condensing
Ingress protection: Independently tested to IP65 and IP67
Approvals: IECEx: Ex db ia IIC T4 Gb Tamb -20°C to +55°C, ATEX: Ex II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C, UL: Use in hazardous locations Class 1 Div 1, groups A, B, C and D only as to intrinsic safety, INMETRO: Ex db ia IIC T4 Gb Tamb -20°C to +55°C
Compliance: EMC Directive 2014/30/EU
Interface: USB communications lead
Accessories: Available separately - Single unit cradle charger, 10 unit cradle charger, vehicle charger, Clip on filter plate for sensor protection in dusty environments, I-Test automated bump and calibration station
Gases and Ranges
Gas
Range
Resolution
Carbon monoxide (CO)
0-1000ppm
1ppm
Flammable
0-100% LEL
1% LEL
Hydrogen sulphide (H2S)
0-100ppm
1ppm
Oxygen (O2)
0-30% vol.
0.1% vol.
