Detective + Multigas Monitor

Designed for group protection, area monitoring and providing a virtual fenceline, Detective+ is a rugged, interconnectable, multigas temporary area monitor. Building on Crowcon's experience in pioneering this category of detector, Detective+ has earned a reputation for reliability and versatility in demanding environments stretching from offshore platforms to the sands of the Middle East.

Overview

Rugged and robust, Detective+ features either fixed or folding legs and a protective frame that allows stacking for easier storage.

Detective Wireless is a wireless module that gives you up to 100 meters range excluding the use of cables.
The Detective Wireless modules can also be used as a repeater giving you a stronger signal in those areas that are built up and that have issues with signal strength.
Detective Wireless is backwards compatible enabling use with all version of Detective and Detective+, so it can be used on your existing fleet. Find out more. Available with an optional internal pump for sampling versatility, alarms are announced with an extremely loud sounder, while multiple beacons ensure 360 degree visibility. Detective+ may now also be equipped with infra-red (IR) sensors, providing either CO2 detection, or allowing higher levels of flammable gas monitoring. IR sensors also provide immunity to the poisoning effects which standard flammable gas sensors can suffer from. This extends sensor life and further increases measurement confidence in tough applications such as water treatment plants and certain chemical or hydrocarbon processing facilities.

Versatile and user friendly

  • Infrared sensors available - allows sampling of highly flammable gas levels and carbon dioxide. They are also unaffected by poisoning
  • Built-in pump option - provides fast response and extra sensor protection, and sampling versatility
  • Clear display - provides clear information and allows indentification of gas hazard

Rugged, tripod design

  • Raised sensor apertures - prevents water ingress
  • Folding or fixed leg options - allows stacking for easier storage and transportation
  • IP65 specifications - provides excellent sensor protection

Loud and clear alarms

  • 25 Detective+ units may be linked together, up to 100m from adjacent units - all linked Detective+ units indicate an alarm sensed by any one unit
  • Units sending an alarm flash faster - provides effective warning of gas hazards
  • Audible and visual confidence blip
  • Vivid red LED clusters for visual alarm
  • Multiple beacons - ensures 3600 visibility

Specifications

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 control 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, oxygen 2 years minimum, IR>5 years
Humidity 0-95% RH non-condensing
EMC EN 50270, FCC CFR47 Part 15
Ingress protection IP65
Approvals Europe: ATEX II 2G EEx ib d IIC T4
International: IECEx EEx ib d IIC T4
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 or the Crowcon CheckBox IMH management system
Accessories Baffle plate, interconnecting leads, RS232 communications lead
Sampling Internal electric sampling pump option, manual aspiration
Linked Detectives Up to 12 units can be linked to provide perimeter or area monitoring

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 35 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 (HN3)  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

Accessories

Below is a small selection of the accessories available for the Crowcon Clip SGD. For a full list Contact Us.

PID-A1 Sensor

SS0600

Gas-Pro PID Electrode Stack

SS0738

Gas-Pro PID Lamp 10.6 eV

SS0739

Cleaning Kit

C03664

Gas-Pro PID Stack Removal Tool

C03663

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