Our Brochure

Customer Enquiries

National Call Centre:

Specialised Safety Equipment

Our Brochure

Customer Enquiries

National Call Centre:

Ultima X Series

The ULTIMA X series of gas monitors is available with catalytic sensors for combustible gas and electrochemical sensors for toxic and oxygen [ULTIMA XE] or infrared for combustible gas [ULTIMA XIR]. The state-of-the-art design provides ease of use and maintenance and notably the XIR technology’s outstanding long term accuracy extends the calibration interval. All ULTIMA X series monitors are protected by a rugged, explosion-proof stainless steel enclosure and are suitable for indoor and outdoor applications in virtually any industry, including offshore operations. ULTIMA X are state-of-the-art gas monitors for continuous detection and monitoring of combustible gases, toxics and oxygen concentration. The monitors can be deployed as stand-alone units, but also provide a 4 to 20 mA output for connection to controllers. In addition, the ULTIMA X3 range now supports ModBUS RTU communication with PLC, DCS or other control systems.

Approvals and standards


CE Low Voltage Directive: 73/23/EEC
ULTIMA XE/XIR/X3 and Remote Sensor

CE ATEX Directive: 94/9/EC
CE EMC Directive: 89/336/EEC

II 2G EEx d IIC T5 [main enclosure]
II 2G EEx d IIC T4 [sensor excluding IR]
II 2G EEx d IIC T5 [IR sensor]
II 2G EEx ia IIC T4 [sensor with safety barrier]
–40 °C Ta +60 °C
ULTIMA Calibrator

II 2G EEx ib IIC T3/T4/T5
ULTIMA Controller

II 2G EEx ib IIC T4


Combustible Detection
Oxygen Detection
Toxic Detection

Features and benefits

Stainless steel explosion-proof, multiple-entry enclosure
Large LCD for numerical data as well as clear text messages
Unified sensor electronics for multiple detection and monitoring technologies
Single-board design greatly simplifies servicing
“Quick-check” LEDs indicate system conditions,with good visibility even from a distance
Optional field-programmable relays
Remote sensor option
Automatic compensation for changes in temperature and humidity
All calibrations and adjustments made using non-invasive calibrator or controller [IR interface]
Sensors can be changed under power in the field, even in hazardous areas [catalytic and electrochemical sensors]
4 –20 mA output signal [ULTIMA XE]
Digital ModBUS RTU communication [ULTIMA X3]
Up to three sensors per monitor [ULTIMA X3]


General Industrial
Oil & Gas
Water Treatment