NOTE:
When using multiple CRVW3 devices in an RF451/RF452 or RF407 radio network, it may be
necessary to deploy an RF451/RF452 or RF407 device, in addition to those built into the
CRVW3, to operate as the radio base station in the network. Please consult the radio-specific
manuals for more information relating to the design and configuration of radio networks.
3. Initial inspection
Upon receipt of the CRVW3, inspect the packaging and contents for damage. File any damage
claims with the shipping company.
Examine the outside label on the device to ensure that the correct communications option is
provided (for example, –RF451/RF452 radio, –RF407 radio, or no radio).
Confirm that the appropriate battery option is installed in the CRVW3 enclosure. The –ALK option
includes an 8-cell battery pack for eight D cell alkaline batteries. The –RC option includes a single
rechargeable lead acid 7 Ah battery. For the –RC option, start charging the rechargeable battery
as soon as possible after the shipment is received. See
Providing temporary power to the CRVW3
(p. 19) for details.
Using the packing list included with each shipment, ensure that all related accessories included in
your order are present and in good condition. Typical accessories include solar panels, other
power equipment, antennas, cabling, grounding kits, and related items. Thoroughly check
packaging materials for items that may be trapped inside.
4. Overview
The CRVW3 is a rugged, field-ready data logger for measuring vibrating-wire sensors. It provides
built-in power options, including a charge regulator that enables direct solar panel connections.
Built-in radio options are available to enable wireless communications, and the system comes
inside an environmentally protective enclosure as a standard option. The basic parts of the
CRVW3 are shown in
CRVW3 3-Channel Vibrating-Wire Data Logger
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