Product Features
The Crowcon XgardIQ Fixed Gas Detector is Crowcon’s most intelligent fixed gas detector, increasing safety by minimising the time operators must spend in hazardous areas.
XgardIQ is an intelligent and versatile fixed detector and transmitter. Its remote sensor and universal transmitter mean you have access to Crowcon’s full range of sensor technologies and improved detection. With its sensor range selection capabilities, it means users can set the full-scale range of the sensor according to specific location requirements.
Available fitted with a variety of sensors for fixed flammable, toxic, oxygen or H2S gas detection, this SIL2-certified detector is easy and safe to use, with an OLED display for easy visibility of reading even in dark locations and a +Ve safety indicator to quickly confirm the detector is operating soundly at a glance.
The XgardIQ is optionally available with Alarm and Fault relays and HART communications.
Easy and Safe to Use:
▪ OLED display for bright, clear gas level indication and detector status even in dark locations
▪ Non-intrusive calibration removing the need for a hot-work permit or any special tools
▪ Positive Safety indicator confirms the detector is operating safely briefly
▪ Event log function stores all alarm, fault and maintenance events to provide a history of detector use
▪ Remote sensor for improved probability of detection
Simple Installation and Maintenance:
▪ Universal transmitter compatible with Crowcon’s full range of sensor technologies
▪ Simple sensor replacement can be done single-handedly
▪ Auto-sense function automatically detects whether the control system is 4-20mA current sink or source and sets itself appropriately, eliminating the risk of being incorrectly set
▪ Auto-configure function detects when a sensor module is plugged in and uploads the appropriate gas type, range, units and alarm levels
Reliable:
▪ Smart Bump and Speedy Bump test functions for quick sensor-health verification and automated reminders
▪ Calibration reminders to ensure that sensors remain operational and accurate at all times
▪ User can set the full-scale range of the sensor via the display menu according to site or specific location requirements
| Size | H278 x W140 x D89mm (10.9 x 5.5 x 3.5 in) |
| Weight | 4.1Kg (9lbs) |
| Enclosure material | 316 stainless steel |
| Ingress protection | IP66 |
| Connection | Three M20 or ½”NPT cable gland entries.Certified, removable plugs are fitted to left-hand and lower righthand entries |
| Power | 14-30 VDC. <4W |
| Display | Main display – OLED 128 x 64 pixels, yellow text on black background Indicators – Amber, Red and Green LED’s for detector status; Blue +ve Safety LED |
| Electrical output | 4-20mA current sink or source (Auto-Sense or manual selection); warning and fault signals are configurable. NAMUR NE 43 compliant RS-485 Modbus RTU HART 7 over 4-20mA signal and via local I.S. test points (optional) Relays (optional) Alarm 1, Alarm 2, Fault SPCO contacts rated 5A, 230Vac Relay configuration options Energised or de-energised Latching or non-latching Rising or falling Configurable On and Off delays on alarm relays. |
| Event logging | Records alarm, fault and maintenance events. Events can be viewed on-screen and downloaded to a PC. |
| Operating temperature | Transmitter only: -40°C to +75°C (-40°F to +167°F)†
Sensor type: Oxygen: (-20°C to +50°C ambient) |
| Humidity | 0 to 95% RH non-condensing† |
| Repeatability | +/- 2% FSD |
| Zero drift | +/- 2% FSD per year maximum |
| Response time | Sensor dependant: contact Crowcon for specific sensor data. |
| Approvals | ATEX and IECEx: Ex II 2 G Ex db ia IIC T4 Gb (see above for temperature ranges) |
| Performance | Designed for compliance with: EN50104 (oxygen sensors) EN45544 (toxic gas sensors)* EN50271 (software) H2S performance standard |
| Functional safety | IEC61508, EN50402 SIL 2 |
| EMC Compliance | EN50270:2015 FCC CFR47 Part 15B ICES-003 |
† Note: sensor operating temperature and humidity limits vary widely.
* Features outstanding at the time of issue, contact Crowcon for details.
Gasses and Ranges
| Gas | Units | Max Range |
Standard Range |
Alarm 1 level |
Alarm 2 level |
Temp range °C |
| Oxygen (O2) | %Vol | 30 | 25 | 19 (falling) | 17 (falling) | -20 to +50 |
| Ammonia | PPM | 100/1000 | 50 | 25 | 35 | -20 to +40 |
| Carbon Monoxide (CO) | PPM | 1000 | 250 | 30 | 200 | -30 to +50 |
| Hydrogen Fluoride (HF) | PPM | 10 | 10 | 1.8 | 3 | +5 to +40 |
| Hydrogen Sulphide (H2S) | PPM | 100/200 | 25 | 5 | 10 | -30 to +50 |
| High Temperature Hydrogen Sulphide (H2S) | PPM | 100/200 | 25 | 5 | 10 | -40 to +70 |
| Ozone (O3) | PPM | 1 | 1 | 0.1 | 0.2 | -20 to +40 |
| Sulphur Dioxide (SO2) | PPM | 100 | 10 | 1 | 1 | -30 to +50 |
| Hydrogen (H2) | %LEL | 100 | 100 | 20 | 40 | -40 to +75 |
| Methane (CH4) | %LEL | 100 | 100 | 20 | 40 | -40 to +75 |
| Pentane (C5H12) | %LEL | 100 | 100 | 20 | 40 | -40 to +75 |
| Propane (C3H8) | %LEL | 100 | 100 | 20 | 40 | -40 to +75 |
| Ethanol (IR sensor) | %LEL | 100 | 100 | 20 | 40 | -20 to +55 |
| LPG (IR sensor) | %LEL | 100 | 100 | 20 | 40 | -20 to +55 |
| Methane (IR sensor) | %LEL | 100 | 100 | 20 | 40 | -20 to +55 |
| Propane (IR sensor) | %LEL | 100 | 100 | 20 | 40 | +10 to + 55 |
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