PerkinElmer Photovac MicroFID, User Manual

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MicroFID Software Manual
A minimum of 17% oxygen is required to start the hydrogen flame.
The oxygen is supplied from the sample as it is drawn in by the
pump. A minimum of 10% oxygen is required to maintain the
hydrogen flame. An oxygen deficiency will reduce the height of the
flame or cause the flame to be extinguished and may affect the
displayed reading.
If you will be using the MicroFID in a highly contaminated area
where it is possible that the oxygen content is below 10%, watch for
indications of reduced flame height such as lowered detection limits
or a flame out fault.
Flammable Gases
High concentrations of flammable gases (gases within their
flammable range) can act as an additional fuel source. When this
happens, the flame height may increase beyond the confines of the
combustion chamber. The hydrogen supply will then be cut off and
the flame will go out.
Flame out may also occur when the concentration of sample gas is
so great that it causes an oxygen deficiency. This may occur when
sampling enclosed or confined spaces where vapors and gases
cannot escape. Watch for indications of increased flame height such
as erratic readings or sudden high concentrations followed by a
flame out fault.
Unpacking
The following accessories are included with your MicroFID:
1. Shoulder Strap
2. Sample Probe
3. MicroFID Instrument Manual
4. Hydrogen Refill Adapter
5. MicroFID Multi­Tool
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