Crowcon Detective+ area monitoring gas detector

120,060,000

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Description

Brand

Crowcon

Crowcon gas detectors (portable and fixed) are suitable for applications in many industries and for detecting a wide variety of dangerous gases – protecting people and plant from gas risks (toxic and flammable) in both industrial and hazardous areas with IECEx and ATEX certification.

Portable product range: Gas-Pro, Gas-Pro IR, Gas-Pro PID, Gas-Pro TK, T4, Tetra 3, Gasman, Clip SGD, Detective+, Detective Wireless, LaserMethane Mini, Triple Plus+

Fixed product range: XgardIQ, IRmax, Xgard Bright, Xgard, TXgard-IS+, Flamgard Plus, TXgard Plus, Open Path Gas Detectors, FGard IR3 Flame Detector, Xsafe, F-Gas Detector

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Specification

Detective+ Specification

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

* 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, utlising 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

 

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