TXgard Plus is a flameproof (Ex d), ATEX and UL certified toxic or oxygen gas detector with local LCD display. A choice of sensors are available enabling use in a wide range of applications, including water treatment, oil and gas exploration, chemical plants and steel production.

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Quick Overview

Non-intrusive calibration

Calibration can be performed locally without the need for hot work permits - minimises operational down-time
Local display and buttons enable calibration without opening the junction box

Flexible output options

4-20mA current sink or source - works with a wide selection of control panels
3 wire format
Optional relays for alarm and fault - can be used for switching local alarms

Rugged and reliable

Constructed using marine-grade aluminium with a stainless steel sensor housing - proven track record for operation in the harshest environments
Ingress protection to IP65 as standard

Low cost of ownership

Non-intrusive one man calibration - easy to operate and maintain
Long life sensors - keeps interuption to on-site activity to a minimum
Simple parts replacement

Wide range of sensors

Carbon Monoxide, Hydrogen Sulphide and Oxygen range of electrochemical sensors available

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Details

Size	200 x 115 x 115mm (7.9 x 6.1 x 6.1ins)
Weight	2.2kg (4.9lbs)
Ingress protection	IP65
Enclosure material	Junction box: Marine grade alloy Sensor housing: 316 stainless steel
Power	10-30Vdc, 210mA max (relay version) 160mA max (non relay)
Cable entries	2 x M20 or 1/2” NPT
Operating temperature	-10°C to +55°C (-14°F to 131°F) *
Humidity	15 to 90% RH non-condensing
Relays (optional)	SPNO or SPNC contacts rated 30Vdc 1A (non-inductive load) for Alarm 1, Alarm 2, Fault
Display	3-digit LCD back-lit display, LED status indicator
Calibration method	Via magnetically operated buttons
Electrical output	3 wire 4-20mA, sink or source
Terminals	Suitable for up to 1.5mm2 cable
Sensor type	Electrochemical
Repeatability	+/- 2% FSD typically
Zero drift	+/- 2% FSD, 6 months typically
Response time	Contact Crowcon for a full list of sensor response times
Performance	Tested in accordance with EN60079-29-1
Hazardous area zones	Zone 1 or 2
Approvals	Ex II 2 G Exd IIC T6 Gb UL Class I Zone 1
EMC compliance	EN 50270, FCC, ICES-003