Description
Detective+ is a sturdy and resilient product with foldable or fixed legs and a frame that protects and stacks for simpler storage.
Multiple beacons enable 360-degree visibility, and alerts are delivered with an incredibly powerful sounder. An optional internal pump allows for greater sampling versatility.
Infrared (IR) sensors may now be added to Detective+, enabling higher degrees of flammable gas monitoring or CO2 detection. Additionally, IR sensors offer protection against the poisoning effects that conventional flammable gas sensors may experience. This boosts measurement confidence in challenging applications like water treatment plants and specific chemical or hydrocarbon processing facilities, while also extending the life of the sensor. In order to monitor a wide range of gases that provide a variety of dangers, Detective+ can be configured with a wide range of sensors, including hydrogen.
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 triple leg design of the unit improves its physical visibility and allows for a 360-degree gas entrance at the ideal 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 Detective+ with cables can be networked together to make an effective perimeter defense.
– Flexible and intelligent devices that flash the alert more quickly, ensuring the user that the device is safe and operating as intended.
– A 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 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, omni-direction siren, 104 dBA at 1m |
| Display | High contrast LCD with back light. Values and units for up to 4 gases displayed simultaneously at current, TWA or peak levels, low battery, real time and elapsed time calibration and configuration data also displayed. |
| 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 flammable/ CO2 sensor fitted with 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 giving graphical display of instrument log file and allows to export to spreadsheet. |
| Calibration | Quick calibration using internal menu command, Portables PC |
| Accessories | Baffle plate, interconnecting leads, RS232 communications lead |
| Sampling | Internal electric sampling pump option, manual aspiration |
| Linked Detectives | With 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
Required ranges and alarms may vary by country and application and these can be configured as required.
| 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 Detective+
+ Reactive gas, care required during sampling, contact Crowcon
for details.
Infrared sensors
Infrared (IR) sensors for flammable gas can be supplied as a single range, 0-100% LEL, utilising a single display channel, or as a dual range, 0-100% LEL/0-100% volume, which then occupies two display channels.
Carbon dioxide sensors are supplied as 0-5% volume. Only one IR sensor can be fitted, and IR sensors can only be used in combination with 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 (H2 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 |
