MSA ALTAIR 2XP H₂S Gas Detector with XCell Pulse Technology
MSA ALTAIR 2XP 10153984 is a portable hydrogen sulfide monitor in the ALTAIR 2X family. This H₂S-Pulse configuration is intended for trained industrial personnel monitoring potential hydrogen sulfide exposure. It does not measure oxygen or combustible gases and must not be treated as a complete multigas confined-space monitor.
The H₂S sensor measures 0–200 ppm with 1 ppm resolution. Resolution describes the displayed increment, not measurement accuracy. Audible, visual and vibrating alarms support worker notification, while XCell Pulse technology provides a model-specific bump-test procedure.
MSA ALTAIR 2XP / 10153984
S10153984
Hydrogen sulfide / 0–200 ppm
1 ppm
Key Features
- XCell H₂S sensor with Pulse technology.
- Electronic pulse check and user-performed flow check.
- Audible, visual and vibrating alarm functions.
- Charcoal housing for the listed configuration.
Common Uses & Applications
- Oil and gas work with identified H₂S exposure hazards.
- Wastewater and utility maintenance requiring H₂S monitoring.
- Industrial operations where hydrogen sulfide is an assessed hazard.
Bump Testing & Calibration
For Pulse-equipped instruments, the prescribed pulse-and-flow check permits a stand-alone bump test without bottled test gas. This capability does not make the detector calibration-free. MSA recommends bump testing before each day’s use and requires calibration after a failed bump test. Follow the manual for inspection, alarm checks, calibration and response to failed tests.
Use the correct calibration gas and accessories for the installed sensor. Keep the sensor inlet unobstructed. Temperature, humidity and pressure changes can affect readings; consult the operating manual before use in demanding conditions. Do not rely solely on the vibrating alarm below 0°C.
Selection & Ordering
Specify part number 10153984 when ordering this H₂S-Pulse version. MSA lists factory alarm settings of 10 and 15 ppm for this part; confirm the supplied instrument’s configuration before deployment. Alarm settings are not a declaration that lower concentrations are safe for every exposure duration or task.
Confined-Space Safety Requirements
OSHA 29 CFR 1910.146 addresses permit-required confined spaces in general industry. Atmospheric testing must cover the identified hazards, with oxygen tested first, followed by combustible gases and vapors, then toxic gases and vapors.
This H₂S-only detector cannot complete that testing by itself. Select additional appropriate instrumentation, sampling methods and entry procedures through the site’s confined-space program. A detector reading does not independently authorize entry.
Manufacturer Documentation
Review MSA’s official 10153984 configuration and approval listings and the MSA ALTAIR 2X operating manual (PDF). Verify hazardous-location approvals against the supplied instrument’s label.
FAQ
Does this detector measure methane or oxygen?
No. Part 10153984 is an H₂S-Pulse configuration. Other atmospheric hazards require appropriate separate sensing capability.
Does a successful Pulse check replace calibration?
No. Bump testing checks function; calibration adjusts sensor response using a known gas concentration. Follow MSA’s instructions for both.
