Using Hydrogen With Trace 1300/Trace 1310 - Thermo Scientific TRACE 1300 Instruction Manual

Preface
Hydrogen Safety Precautions

Using Hydrogen with TRACE 1300/TRACE 1310

xx TRACE 1310 Auxiliary Oven Instruction Manual
• All hydrogen shutoff valves should be clearly marked and permanent hydrogen piping
should be labeled as such at the supply or discharge point and at regular intervals along its
length. Where hydrogen gas piping passes through a wall, the piping should be labeled on
both sides of the wall.
• There should also be contingency plans in place should an incident occur.
• The site emergency response team, as well as the local fire department, should know the
location of all hydrogen storage tanks.
The use of hydrogen as a carrier gas or as fuel gas for certain flame detectors requires the
operator's 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. Special precautions must be taken because of the risk of
explosion. The gas chromatograph must be equipped with a hydrogen sensor if you use
hydrogen as a carrier gas.
Never use hydrogen as carrier gas in your TRACE 1300/TRACE 1310 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 the instrument is
equipped with the appropriate sensor.
If your oven does not have a hydrogen sensor already installed, contact your Thermo
Fisher Scientific sales representative. To comply with instrument safety requirements, a
Thermo Fisher Scientific FSE or authorized service personnel should install the sensor
into your TRACE 1300/TRACE 1310.
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 if oven elements are not perfectly connected
to each other, or if 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 1300/TRACE 1310 has a Thermo Fisher Scientific hydrogen sensor
installed. A hydrogen sensor continuously monitors the hydrogen level in the oven.
Thermo Scientific