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Guidelines and Instrument Layout
Sampling
For ambient air sampling, the omni-directional inlet unit must be used to
minimize wind speed and direction effects on particle sampling
Guidelines
representativeness. This special omni-directional inlet is provided as a
standard accessory of the ADR-1500. On receipt by the customer, this inlet
will arrive packaged separately, and needs to be installed. Refer to
Figure 2–
7
for the final (installed) appearance of the omni-directional inlet. To
install proceed as follows:
Slide the omni-directional inlet onto the inlet stem of the ADR-1500 until
it bottoms. To remove the omni-directional inlet, lift and twist the unit
from the inlet stem.
If the ADR-1500 is to be used for extractive sampling (e.g., from a
chamber, duct, stack, etc.) a flexible plastic tubing (preferably electrically
conductive) can be used and connected to the inlet stem on the upper face
of the ADR-1500. In this case the omni-directional inlet is not used and a
3/8-inch compression fitting with Teflon or nylon ferrules should be used.
For sampling situations involving water sprays, fog, etc. it is recommended
that the in-line inlet heater be switched on. This optional operational
configuration ensures the sample relative humidity will not exceed 70%. If
not necessary, and to extend the run-time of the ADR-1500, when running
off of the internal battery, simply switch the internal heater off.
Equipment Damage Damage may occur to the instrument if the
environmental conditions exceed IP65.
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Thermo Fisher Scientific
MIE ADR-1500 Instruction Manual
2-9
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Troubleshooting
