Gas Detection Equipment

Suite 9, Red Tree Business Suites, 24 Stonelaw Road, Rutherglen, Glasgow, G73 3TW

Tel +44 (0)141 613 2138



MSA Ultima X Series

The ULTIMA XE and XIR provide continuous monitoring of combustible and toxic gases and oxygen deficiency using catalytic, electrochemical and infrared sensor technologies. They are suitable for almost all applications in virtually any type of industry. A large easy to read LCD shows the gas reading and gas type as well as clear text status messages. The ULTIMA X series is powered from 24 VDC with a 4–20 mA output signal and optional on board status LED’s and/or output relays. Smart sensor technology allows sensor disconnect and replacement under power in hazardous locations.
ULTIMA XE gas monitors are also available with HART field communications protocol. The ULTIMA XA comes in a rugged plastic general purpose enclosure. It is available with 4–20 mA analogue output or with optional HART protocol.

For more information, please see leaflets 07-703.2 and 07-705.2.

ATEX    II 2G EEx d IIC T4, including performance approval, SIL 2 (ULTIMA XE) ATEX    II 2G EEx d IIC T5/T6, including performance approval, SIL 2 (ULTIMA XIR) MED 96/98/EC

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]


Offshore installations
Chemical and petrochemical facilities
Steel mills
Water and wastewater plants
Automotive factories