Description
Area Gas Monitor is a robust and portable gas detection unit designed for versatile use. It features a protective frame and foldable or fixed legs, making storage and transport easy.
It ensures 360-degree visibility through multiple beacons and delivers alerts with a powerful sounder. An optional internal pump enhances sampling flexibility, making the device suitable for a wide range of applications.
Infrared (IR) sensors may now be added to the Area Gas Monitor, enabling higher degrees of flammable gas monitoring or CO2 detection. Additionally, IR sensors not only offer protection against the poisoning effects that conventional flammable gas sensors may experience, but also enhance the reliability of gas detection.
This increases measurement confidence in tough environments such as water treatment plants and chemical or hydrocarbon processing facilities. Furthermore, it also extends the sensor’s lifespan. Users can configure the Area Gas Monitor with various sensors, including hydrogen, to monitor a broad range of hazardous gases
Versatile and user-friendly
– Infrared sensors are available, enabling the sampling of carbon dioxide and other highly combustible gas concentrations. They respond extremely quickly and are immune to poisoning.
– An integrated pump option offers a wide range of sample options
– Inbuilt display: offers lucid data and enables gas hazard detection
Rugged, tripod design
– Elevated sensor apertures: This stops water from penetrating.
– IP65 standards for usage in demanding situations
– Folding leg option for simpler stacking and transporting
– The unit’s triple-leg design enhances visibility and enables 360-degree gas intake at an optimal height.
Loud and clear alarms
– Units on the network can be positioned up to 100 meters apart, and if one alarms, all units on the network alarm.
– 12 Area Gas Monitor with cables can be networked together to make an effective perimeter defense.
-These smart devices flash alerts faster, reassuring users that they are safe and functioning properly.
– An audible and visible surge in confidence.
– Bright red LED groups as a visual alert.
– Several beacons provide 3600 ° visibility.
Contents include –
| Size | 640 x 455 x 455mm (25.2 x 17.9 x 17.9ins) |
| Weight | 7.5kg (19lbs) |
| Alarms | Three large, top-mounted red LED clusters and a single red LED on the front panel. Alarm mode: LED clusters flash in quick succession. LED clusters of linked Detectives repeating the alarm, flash slower than LED lights on those Detectives sensing the hazard Normal working: Slow flashing green LED Battery low: Rapid flashing green LED Wailing alarm, omnidirectional siren, 104 dba at 1m |
| Display | High contrast LCD with backlight. Values and units for up to four gases are displayed simultaneously at current, TWA, or peak levels. Additionally, low battery status, real-time and elapsed time, calibration, and configuration data are also shown. |
| Data logging | 125hrs at 10-second intervals (45,000 logs) |
| Event logging | Alarm, over range, calibration, bump, on/off, TWA, 1000 events |
| Battery | Standard 6v, 7.2Ah, sealed lead acid battery pack Optional 6V, 12Ah high capacity pack Up to 36 hours with a flammable/ CO2 sensor fitted with a 7.2Ah battery Up to 60 hours with optional 12Ah battery pack |
| Typical response times | Methane 20s, oxygen 10s, typical toxic gas 20s, IR 20s |
| Operating temperature | -20°C to +50°C (-4°F to 122°F)* |
| Expected sensor life | Flammable 5 years, toxic 3 years (typical), oxygen 2 years minimum, IR>5 years |
| Humidity | 15-95% RH non-condensing |
| EMC | Directive 2014/30/EU EN50270 |
| Ingress protection | IP65 |
| Approvals | Europe: ATEX II 2G Ex ib d IIC T4 (Tamb -20°C to +50°C) International: IECEx Ex ib d IIC T4 (Tamb -20°C to +50°C) |
| Standards | EN50014, EN50018, EN50020, EN50104, EN45544, IEC60079-0/-1 IEC60079-11 |
| PC Interface | Via RS232 lead. Portables PC software can be used to set alarms, clock, datalogging interval and password, manages datalogging, give a graphical display of the instrument log file and allow exporting to a spreadsheet. |
| Calibration | Quick calibration using internal menu command, Portable PC |
| Accessories | Baffle plate, interconnecting leads, RS232 communications lead |
| Sampling | Internal electric sampling pump option, manual aspiration |
| Linked Detectives | With a cable connection, up to 12 units can be linked to provide perimeter or area monitoring |
| Crowcon Connect Compatible? | No |
**Toxic and Oxygen sensors RH Specifications vary, consult Crowcon for specific operating humidities.
Gases and Ranges
Users can configure the required ranges and alarms based on the specific country and application.
| Gas | Range | Typical Alarms |
| Flammable gas | 0-100 LEL | 20% LEL |
| Oxygen (O2) | 0-25% | 19% & 23% |
| Hydrogen sulphide (H2S) | 0-50 ppm | 10 ppm |
| Carbon monoxide (CO) | 0-500 ppm | 30 ppm |
| Sulphur dioxide (SO2) | 0-10 ppm | 2 ppm |
| Chlorine (Cl2) | 0-5 ppm | 0.5 ppm |
| Nitrogen dioxide (NO2) | 0-10 ppm | 2 ppm |
| Phosphine (PH3) | 0-5 ppm | 0.5 ppm |
| Ammonia (NH3) | 0-50 ppm | 25 ppm |
| Ammonia (NH3) | 0-1000 ppm | n/a |
| Hydrogen (non-flammable levels) | 0-2000 ppm | n/a |
| Hydrogen cyanide (HCN) | 0-25ppm | 10ppm |
| Hydrogen chloride (HCl)*/+ | 0-10 ppm | 5ppm |
| Chlorine dioxide (Clo2)+ | 0-1 ppm | 0.1 ppm |
| Hydrogen fluoride (HF)+ | 0-10 ppm | 1 ppm |
| Ethylene oxide (C2H4O)* | 0-10 ppm | 5 ppm |
| Volatile organic*/+ | 1-100 ppm | n/a |
* One biased sensor per Area Gas Monitor
+ Reactive gas, care required during sampling, contact Crowcon
for details.
Infrared sensors
IR sensors for flammable gases are available in a single range (0–100% LEL) using one display channel, or a dual range (0–100% LEL and 0–100% volume) that uses two channels.
Carbon dioxide sensors come in a 0–5% volume range. Only one IR sensor can be installed, and it must be used alongside oxygen and toxic sensors
| Gas | Range | Typical Alarms |
| Flammable gas | 0-100 LEL | 20% LEL |
| Flammable gas | 0-100% v/v | None |
| Available for methane, propane, butane or ethylene | ||
| Carbon dioxide (CO2) | 0 to 5% v/v | 0.5 and 1.5% v/v |
| Carbon Monoxide (CO) | 0-1500 ppm | 20 ppm |
| Carbon Dioxide (CO2) | 0-5% vol. | 0.5% vol. |
| Carbon Monoxide (CO filtered) |
0-500ppm | 20ppm |
| Chlorine (Cl2) | 0-20 ppm | 0.3 ppm |
| Chlorine Dioxide (CIO2) | 0-1 ppm | 0.1 ppm |
| Ethylene Oxide (ETO) | 0-10 ppm | 3 ppm |
| Flammable True LEL (MPS) | 0-100% LEL | 20% LEL |
| Flammable | 0 – 100% LEL | 20% LEL |
| Fluorine (F2) | 0-1 ppm | 0.5 ppm |
| Hydrogen (H2) | 0-2000 ppm | N/A |
| Hydrogen Cyanide (HCN) | 0-25 ppm | 5 ppm |
| Hydrogen Fluoride (HF) | 0-10 ppm | 1 ppm |
| Hydrogen Sulphide (H2S) | 0-250ppm | 5 ppm |
| Nitric Oxide (NO) | 0-100 ppm | 25 ppm |
| Nitrogen Dioxide (NO2) | 0-20 ppm | 1 ppm |
| Oxygen (O2), Long-Life | 0-25% vol. | 19.5% / 23.5% vol. |
| Oxygen (O2) | 0-25% vol. | 19.5% / 23.5% vol. |
| Ozone (O3) | 0-1 ppm | 0.1 ppm |
| Phosphine (PH3) | 0-5 ppm | 0.1 ppm |
| Phosgene (COCL2) | 0-1 ppm | 0.1 ppm |
| Sulphur Dioxide (SO2) | 0-20 ppm | 1 ppm |
