Crowcon XgardIQ Gas Detector
The XgardIQ provides analogue 4-20mA and RS-485 Modbus signals and is optionally available with alarm and fault relays and HART communications.
Easy and safe to use, the Crowcon XgardIQ features an OLED display indicating gas level and detector status even in dark locations. There is also a non-intrusive calibration where functions are performed via the display and keypad, without the need for a hot-work permit or any special tools.
The positive safety indicator confirms that the detector is operating safely at a quick glance and the event log function stores all past alarm, fault and maintenance events to provide a detector history.
Simple to install and maintain, the XgardIQ features a universal transmitter, hot swap sensor modules and an auto sense function. The detector also offers an auto-configure function to detect when a sensor module is plugged-in.
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.
Crowcon XgardIQ Fixed Gas Detector – Key Features
- Confidence with Positive Safety – Bright LEDs indicate detector status at a glance; the unique Positive Safety LED confirms the detector is operating safely and alerts operators to any irregular events that may affect product integrity such as the ambient temperature exceeding sensor limits. When working safely, the blue LED remains on constantly. If any abnormal conditions are detected the LED will flash and a warning message will be displayed.
- Flexible signal outputs – XgardIQ provides comprehensive and powerful output signal options; analogue 4-20mA signal with auto sink/source detection feature and RS-485 Modbus communications are provided as standard. Alarm and fault relays featuring heavy-duty changeover contacts, rated 230Vac 5A, are available at purchase or may be added at any time after installation. HART communications can be provided both over the analogue signal and via local I.S. terminals for diagnostics via any HART asset management system or hand-held device.
- Rugged and robust – ATEX and IECEx certified for use in Zone 1 and Zone 2 hazardous areas, XgardIQ has been designed for long-life operation in extreme environments. Featuring a rugged 316 stainless steel construction and a wide operating temperature range from -40°C to +75°C, XgardIQ is suitable for the most demanding applications.
- Improved safety – XgardIQ minimises the time personnel spend in potentially hazardous locations by using simple hot-swappable sensor modules. Sensors can be bump tested and calibrated in-situ or removed in seconds using one hand, and either replaced with a pre-calibrated sensor module or re-calibrated in a safe area before being refitted. All functions and adjustments can be made via the integral keypad without the need for special tools or hot-work permits.
Crowcon XgardIQ Bump Testing And Calibration
Routine bump testing is recommended for the range of Crowcon fixed gas detectors prior to each use. Bump testing is a brief application of a gas to the sensor to invoke a prescribed reaction, ensuring the gas detector reacts as expected.
Bump testing provides a quick, easy and direct method of verifying gas detectors are performing as required and takes a lot less time than ‘zeroing’ the device.
The bump test is widely accepted as a suitable method of testing gas detection equipment.
Crowcon XgardIQ Fixed Gas Detector Technical Characteristics
|Size||XgardIQ transmitter||H278 x W140 x D89mm (10.9 x 5.5 x 3.5ins)|
|Weight||XgardIQ transmitter||4.1kg (9lbs, stainless steel)|
|Enclosure material||316 stainless steel|
|Connection||Three M20 or 1/2”NPT cable gland entries. Certified, removable plugs are fitted to left-hand and lower right-hand entries|
|Power||14-30Vdc. < 4W|
|Display||Main display||OLED 128 x 64 pixels, yellow text on black background|
|Indicators||Amber, Red and Green LEDs for detector status Blue Positive 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, FaultSPDT contacts rated 5A, 230Vac (Fault relay: SPST contacts)|
|Relay configuration options||Energised or de-energisedLatching or non-latchingRising or fallingConfigurable On and Off delays for 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: -40oC to +75oC (-40oF to 167oF) Sensor type Oxygen (-40oC to +75oC ambient) Toxic (-40oC to +75oC ambient) Pellistor (-40oC to +75oC ambient) Infra-red (IR) (-20oC to +55oC ambient)|
|Humidity||Transmitter only: 0 to 95% RH non-condensingNote: sensor humidity operating range may vary. Contact Crowcon for specific sensor data|
|Repeatability||+/- 2% FSD|
|Zero drift||+/- 2% FSD per year maximum|
|Response time||Sensor dependent: contact Crowcon for specific sensor data|
|Performance||Tested in accordance- with:|
EN60079-29-1 (flammable gas sensors)*
EN50104 (oxygen sensors)*
|Functional safety||IEC61508, EN50402, SIL 2*|
|Approvals||ATEX and IECEx, Baseefa|
Ex II 2 G Ex db ia IIC T4 Gb (see above for ambient temperature ranges)
GOST CU-TR – RU-C-GB.AA87.B.00059
|EMC compliance||EN50270, EN61000-6-4|
FCC CFR47 Part 15B
Crowcon XgardIQ Gases And Detection Ranges
|Oxygen (O2)||Electrochemical||%Vol||30||25||19 (falling)||17 (falling)||-20 to +50|
|Ammonia (NH3)||Electrochemical||PPM||100/1000||50||25||35||-20 to +40|
|Carbon Monoxide (CO)||Electrochemical||PPM||1000||250||30||200||-30 to +50|
|Hydrogen Fluoride (HF)||Electrochemical||PPM||10||10||1.8||3||+5 to +40|
|Hydrogen Sulphide (H2S)||Electrochemical||PPM||100/200||25||5||10||-30 to +50|
|Mercaptan (CH3SH)||Electrochemical||PPM||14||14||5||10||-10 To +40|
|Ozone (O3)||Electrochemical||PPM||1||1||0.1||0.2||-20 to +40|
|Sulphur dioxide (SO2)||Electrochemical||PPM||100||10||1||1||-30 to +50|
|Hydrogen (H2)||Pellistor||%LEL||100||100||20||40||-40 to +75|
|LPG||Pellistor||%LEL||100||100||20||40||-40 to +75|
|Methane (CH4)||Pellistor||%LEL||100||100||20||40||-40 to +75|
|Pentane (C5H12)||Pellistor||%LEL||100||100||20||40||-40 to +75|
|Propane (C3H8)||Pellistor||%LEL||100||100||20||40||-40 to +75|
|Ethanol (C2H6O)||IR||%LEL||100||100||20||40||+10 to +55|
|LPG||IR||%LEL||100||100||20||40||-20 to +55|
|Methane (CH4)||IR||%LEL||100||100||20||40||-20 to +55|
|Pentane (C5H12) Propane (C3H8)||IR IR||%LEL %LEL||100100||100100||2020||4040||-20 to +55 -20 to +55|
CROWCON XgardIQ – HAZARDOUS AREA ATEX CERTIFIED GAS DETECTOR
Hazardous Area Classification :
ATEX and IECEx:
Ex II 2 G Ex d ia IIC T4 Gb (-40 to +75°C)
Crowcon XgardIQ includes an Exd flameproof electronics/terminal area with an individual Galvanic Isolator that provides an Intrinsically Safe interface to the display module and sensor module – the gas detector is certified Exd ia for use in ATEX/IECEx hazardous area Zone 1 and Zone 2.
Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).
T&D provide competitive prices and delivery for all Crowcon Gas Detectors, including the Crowcon XgardIQ.
➡ Did you know? Crowcon fixed gas detectors protect plant; portable gas detectors protect people.