Teledyne T100, Инструкция по эксплуатации, Страница: 56 / 404

Getting Started
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
56
3.5. PNEUMATIC CONNECTIONS
This section provides not only pneumatic connection information, but also important
information about the gases required for accurate calibration (Section 3.5.7); it also
illustrates the pneumatic layouts for the analyzer in its basic configuration and with
options.
Before making the pneumatic connections, carefully note the following cautionary and
additional messages:
CAUTION
GENERAL SAFETY HAZARD
SULFUR DIOXIDE (SO
2
) IS A TOXIC GAS.
DO NOT vent calibration gas and sample gas into enclosed areas. Obtain a
Material Safety Data Sheet (MSDS) for this material. Read and rigorously follow
the safety guidelines described there.
CAUTION
GENERAL SAFETY HAZARD
Sample and calibration gases should only come into contact with PTFE (Teflon)
or glass tubes and fixtures.
They SHOULD NOT come in contact with brass or stainless steel fittings prior to
the reaction cell.
The exhaust from the analyzer’s internal pump MUST be vented outside the
immediate area or shelter surrounding the instrument.
It is important to conform to all safety requirements regarding exposure to SO
2
.
ATTENTION
COULD DAMAGE INSTRUMENT
Maximum Pressure:
Ideally the maximum pressure of any gas at the sample inlet should equal ambient
atmospheric pressure and should NEVER exceed 1.5 in-hg above ambient pressure.
ATTENTION
COULD DAMAGE INSTRUMENT
Venting Pressurized Gas:
In applications where any gas (span gas, zero air supply, sample gas is) received from a
pressurized manifold, a vent must be provided to equalize the gas with ambient
atmospheric pressure before it enters the analyzer to ensure that the gases input do not
exceed the maximum inlet pressure of the analyzer, as well as to prevent back diffusion
and pressure effects. These vents should be:
•
At least 0.2m long;
•
No more than 2m long and;
•
Vented outside the shelter or immediate area surrounding the instrument.