Met One Instruments LVS-100, Руководство пользователя

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MicroVol-1100 User manual 1.6 Installation
2.1.2 Connecting an External Trigger for remote activation
Refer to section 3.3.2.3 for details on how to setup the Trigger menu for
remote activation.
The external trigger voltage must be between 0 and 5v. If using a contact
closure to trigger the MicroVol then the signal must be pulled up to +5v with a
4.7kOhm resistor. +5V Pullup, ground and Trigger input are available on the
external trigger cable.
Ensure the Trigger Signal to Trigger Ground voltage does not exceed 5V. To
prevent damage to the MicroVol, opto-isolated or relay contacts are
recommended to connect the triggering device to the MicroVol.
Refer to the cable diagram for further details.
Figure 3 External Trigger Output
2.2 Installing the MicroVol-1100 for indoor sampling
Attach the MicroVol-1100 to a power-outlet that will not be needed for other
purposes, so that the power supply to the Micro-Vol 1100 will not be disturbed.
The sampler should be located in a position that will allow it to collect a sample
representative of the area of interest, without being influenced by any non-typical
factors. The MicroVol-1100 may be placed on a table away from any source of
particulate accumulation such as a wall, corner of room, or near an exhaust or inlet. It
may be advisable to remove or switch the MicroVol off while vacuum cleaning is
taking place, as unusually high dust levels will be present. Consult the relevant local
standards for further information on siting air samplers.
2.3 Installing the MicroVol-1100 for outside sampling
Attach the MicroVol main tubular housing securely to a post, preferably elevated so
that rain can not splash up underneath the sampler. An outdoor mounting bracket kit
is available. The rechargeable battery pack (option) is recommended for use outdoors.
Note: The standard mains power adaptor, and the mains powered battery charger are
not weatherproof and are not suitable for use outdoors.
Although the MicroVol-1100 is housed in a weatherproof enclosure, it should be
protected from moisture as much as possible. Water must not be allowed to enter the
inlet, filter holder, or inlet tube. Inlet components must be dried before removing them
(ie. when changing filters). Do not change the filter in wet conditions or if there is
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