Operating Instructions SS2100i-2 TDLAS Gas Analyzer
24 Endress+Hauser
3 Safety
3.1 Potential risks affecting personnel
This section addresses the appropriate actions to undertake when faced with hazardous situations during or before
service of the analyzer. It is not possible to list all potential hazards within this document. The user is responsible for
identifying and mitigating any potential hazards present when servicing the analyzer.
Technicians are expected to follow all safety protocols established by the customer that are necessary for
servicing the analyzer. This may include, but is not limited to, lockout/tagout procedures, toxic gas monitoring
protocols, PPE requirements, hot work permits and other precautions that address safety concerns related to
performing service on process equipment located in hazardous areas.
3.1.1 Mitigating risks
Refer to the instructions for each situation listed below to mitigate associated risks.
Exposure to process gases
1. Shut off the process gas to the analyzer before any service that would require opening a part of the sample
plumbing.
2. Purge the system with nitrogen.
3. Shut off the nitrogen purge before opening any part of the sample system.
3.1.2 Exposure to toxic gas (H
2
S)
Follow the procedure below if there has been any suspected leak from the sample system and accumulated SCS
enclosure.
1. Purge the SCS enclosure to remove any potentially toxic gas.
2. Test the H
2
S levels of the SCS enclosure using the port from the safety purge kit to ensure the purge has cleared
any toxic gas.
3. If no gas leak is detected, open the SCS enclosure door.
Follow all safety protocols governing toxic gases and potential leaks.
3.1.3 Electrocution hazard
1. Shut off power at the main disconnect external to the analyzer.
Complete this action before performing any service that requires working near the main input power or
disconnecting any wiring or other electrical components.
2. Open enclosure door.
If service must be performed with power engaged (gain adjustment, etc.):
1. Note any live electrical components and avoid any contact with them.
2. Only use tools with a safety rating for protection against accidental contact with voltage up to 1000 V (IEC 900,
ASTF-F1505-04, VDE 0682/201).
3.2 Explosion hazard
Any work in a hazardous area must be carefully controlled to avoid creating any ignition sources (e.g., heat, arcing,
sparking, etc.). All tools must be appropriate for the area and hazards present. Electrical connections must not be
made or broken with power on (to avoid arcing).
To Next Page
Loading...
