Crowcon T4

Overview

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 button and 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:

Specification

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 d ia IIC T4 Gb T_amb -20°C to +55°C
ATEX: Ex II 2 G Ex d ia IIC T4 Gb T_amb -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 d ia IIC T4 Gb T_amb -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 environements
I-Test automated bump and calibration station

 * Toxic and oxygen sensors are not rated for continuous operation above 50°C (122°F)

Gases and Range

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.