INDUSTRIAL MONITORING INSTRUMENTATION DIVISION
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introduction
The Model 691A51 Series Vibration Termination Boxes provide terminal strip input with the convenience of BNC
outputs. They are used in conjunction with commercially available data collectors and analyzers. A few
specifications are listed below for easy reference.
689A51 Specifications
691A51/01 .......................................................................
1 Channel
691A51/02 .....................................................................
2 Channels
691A51/03 .....................................................................
3 Channels
691A51/04 .....................................................................
4 Channels
Input Connectors........................................
3 Socket Terminal Strip
Output Connector(s) .........................................................
BNC Jack
Enclosure Type .......................................................
NEMA 4X (IP67)
Size ..................................
4.72 x 3.14 x 2.16 in [120 x 80 x 55 mm]
Weight.................................................................
0.72 lbs [327 gms]
installation
Establish an easily accessible location for installation, keeping in mind the cabling will be coming from the bottom
panel of the enclosure. Use the supplied mounting feet and hardware to install the unit.
Note: The unit has BNC connectors that can be easily contaminated. Install the unit away from sprays, cleaning
fluids, steam, excess temperature (above 212
F) and other contaminants. Always leave the dust cap on the BNC
when not taking data. This will protect the contacts. Do not use the unit outdoors unless it is protected from the
environment.