Description
Crowcon offers a personal protection system called T4 that can identify the four most prevalent gas hazards:
– Carbon Monoxide (CO)
– Oxygen Depletion (O2)
– Hydrogen Sulfuride (H2S)
– Flammable Gases
Providing you with a straightforward solution that offers compliance, durability, and a low cost of ownership. The T4 can be controlled with little training while wearing gloves because to its large single button and simple menu layout.
The T4, the most robust portable from Crowcon to yet, is built to last and comes with an integrated rubber boot as standard. The ability to simply remove and replace an optional clip-on filter cover guarantees that sensors are protected even in the dirtiest settings. T4 enables continuous operation in the most demanding situations. It is drop tested to 4 meters and has IP65 and IP67 certification, providing good protection against water infiltration.
With enhanced pentane, hexane, and other long-chain hydrocarbon detection now available.
T4 has many strong features to make daily use simpler and safer, including:
TWA Resume
TWA Resume, a feature exclusive to T4, makes sure that toxic gas exposure is precisely computed during the course of a shift, even in the event that T4 is turned off for a break or while traveling to another location.
The algorithm that determines TWA exposure believes that the shift has ended when the majority of portable detectors are turned off. These detectors ignore all previous measurements when they are turned on again, behaving as though it were a new work shift. However, prior measurements taken within the appropriate time window might be included using the TWA Resume function.
18 hour battery
The T4’s 18-hour battery life enables it to be used for repeated or longer shifts before needing to be recharged.
Positive Safety
The visible “traffic light” signal from Crowcon offers continuous visual confirmation that T4 is functioning properly and complies with site bump test and calibration rules. The user and people around them can quickly, easily, and comprehensively determine the state of the monitor with the help of the vivid green and red Positive Safety LEDs, which are visible to all.
Contents include –
| 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 | ATEX and UKCA: II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2)
IECEx: Ex db ia IIC T4 Gb -20°C ≤ Ta ≤ +55°C (T4 Type 2) UL and cUL: Use in hazardous locations Class 1 Div 1 groups A,B,C,D only as to intrinsic safety INMETRO: Ex db ia IIC T4 Gb -20 °C ≤ Ta ≤ +55 °C MED: Directive 2014/90/EU |
| Standards | EMC Directive 2014/30/EU |
| Interface | USB communications lead |
| Accessories | Included with T4:
Integrated alligator clip and tethering loop Bump/Calibration plate Available separately: |
| Crowcon Connect Compatible? | Yes |
* Toxic and oxygen sensors are not rated for continuous operation above 50°C (122°F)
Gases and Ranges
| Gas | Range | Resolution |
| Oxygen (O2) | 0-30% Vol. | 0.1% Vol. |
| Flammable | 0-100% LEL | 1% LEL |
| Hydrogen sulphide (H2S) | 0-100ppm | 1ppm |
| Carbon monoxide (CO) | 0-1000ppm | 1ppm |
