XgardIQ

The new XgardIQ, our most intelligent fixed gas detector, increases safety by minimising the time operators must spend hazardous areas.

This versatile transmitter and gas detector has a range of features that protect engineers and support facilities managers of oil, gas, chemical & petrochemical plants to name a few.

Available fitted with a variety of sensors for flammable, toxic, oxygen or fixed H2S gas detection.

(SIL-2) Safety integrity level 2 certified gas monitor.

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Categories: Fixed Gas Detectors, Latest Products Tags: Carbon Monoxide, Chlorine Dioxide, Hydrogen, Methane, Other Combustible or Toxic Gasses, Tag: Hydrogen Sulphide, Tag: Oxygen

Overview

XgardIQ is an intelligent and versatile fixed detector and transmitter compatible with Crowcon’s full range of sensor technologies. Available fitted with a variety of sensors for fixed flammable, toxic, oxygen or H2S gas detection.

Providing analogue 4-20mA and RS-485 Modbus signals as standard, XgardIQ is optionally available with Alarm and Fault relays and HART communications. The 316 stainless steel are available with three M20 or ¹/₂“NPT cable entries.

(SIL-2) Safety integrity level 2 certified fixed detector.

Easy and safe to use

OLED display – Bright, clear display indicates gas level and detector status even in dark locations
Non-intrusive calibration – Zero and calibration functions are performed via the display and keypad, without the need for a hot-work permit or any special tools (e.g. no magnetic wand required)
+ve Safety indicator – Confirms the detector is operating safely at a glance
Event log function – Stores all alarm, fault and maintenance events to provide a history of detector use
Remote sensor – Improves probability of detection

Simple installation and maintenance

Universal transmitter – Common transmitter for Crowcon’s full range of sensor technologies
Hot-swap sensor modules – Sensors can easily be replaced using one hand without requiring tools or a hot-work permit
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

Reliability

Smart Bump and Speedy Bump test functions – Enable sensor health and response to be verified quickly and easily using test gas. Process is automated and provides a reminder when a bump test is due
Calibration due warning – Reminds the user when calibration is due to ensure that sensors remain operational and accurate at all times
Sensor range selection – User can set the full-scale range of the sensor via the display menu according to site or specific location requirements.

Specifications

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) Toxic: (-40°C to +50°C ambient) Pellister: (-40°C to +75°C ambient) Infra-red (IR): (-20°C to +55°C ambient) High temperature toxic: (-40⁰C to +70⁰C)
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.

Gases 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