Using Hydrogen With Trace 1600/Trace 1610 - Thermo Scientific TRACE 1600 Hardware Manual

Using Hydrogen with TRACE 1600/TRACE 1610

Thermo Scientific
• Clearly mark all hydrogen shutoff valves and label permanent hydrogen piping as such at
the supply or discharge point, and at regular intervals along its length. Where hydrogen
gas piping passes through a wall, be sure to label both sides of the wall.
• Have contingency plans in place should an incident occur.
• Ensure that site emergency response team, as well as the local fire department, knows the
location of all hydrogen storage tanks.
The use of hydrogen as a carrier gas, or as fuel gas for certain flame detectors, requires strict
attention and compliance with special precautions due to the hazards involved.
WARNING - EXPLOSION HAZARD Hydrogen is a dangerous gas that, when mixed with
air, might create an explosive mixture. The use of hydrogen as a carrier gas requires the
operator's extreme caution. Because of the risk of explosion, operators must take special
precautions.
If you use hydrogen as a carrier gas, you must equip your gas chromatograph with a
hydrogen sensor.
Never use hydrogen as a carrier gas in your TRACE 1600/1610 system unless your oven
has a hydrogen sensor installed. Thermo Fisher Scientific FSEs are not authorized to
install or repair any instrument using hydrogen as a carrier gas unless equipped with the
appropriate sensor.
Contact your Thermo Fisher Scientific sales representative if your oven does not have a
hydrogen sensor already installed. To comply with instrument safety requirements, a
Thermo Fisher Scientific FSE or authorized service personnel should install the sensor
into your TRACE 1600/1610.
Hydrogen is a dangerous gas, particularly in an enclosed area when it reaches a concentration
corresponding to its lower explosion level (4% in volume). An explosion hazard could develop
in the oven when hydrogen is used as a carrier gas in the case oven elements are not perfectly
connected to each other, or when the connection materials are worn out, broken, or otherwise
faulty.
Use the following safety precautions when using hydrogen:
• Ensure that all hydrogen cylinders comply with the safety requirements for proper use
and storage. Hydrogen cylinders and delivery systems must comply with local regulations.
• Make sure the gas supply is turned completely off when connecting hydrogen lines.
• Perform a leak test to ensure that the hydrogen lines are leak-tight before using the
instrument. Repeat this test to eliminate all leaks.
• Ensure your TRACE 1600/1610 has a Thermo Fisher Scientific hydrogen sensor
installed. A hydrogen sensor continuously monitors the hydrogen level in the oven.
Hydrogen Safety Precautions
TRACE 1600/1610 Hardware Manual
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