5
CONNECTING SENSORS
VP-4
5
Connecting Sensors
We designed the VP-4 sensor to work most efficiently with Decagon
Em50, Em50R, and Em50G data loggers, or the ProCheck handheld
reader. The standard sensor with 3.5 mm stereo connector quickly
connects to and is easily configured with a Decagon data logger or
ProCheck.
The VP-4 sensor incorporates several features that also make it an
excellent sensor for use with third party loggers. The sensor may be
purchased with stripped and tinned wires (pigtail) for terminal con-
nections. Visit our website at
www.decagon.com/support/literature
to get extensive directions on how to integrate the VP-4 sensor into
third party loggers.
The VP-4 sensor comes standard with a five meter cable. Sensors
may be purchased with custom cable lengths for an additional fee
(on a per-meter fee basis). Decagon has tested its digital sensor suc-
cessfully up to 1,000 meters (3,200 ft). This option eliminates the
need for splicing the cable (a possible failure point).
5.1
Connecting to an Em50 Series Logger
We designed the VP-4 to work seamlessly with the Em50 series data
loggers. Simply plug the 3.5 mm “stereo plug” connector into one of
the five sensor ports on your Em50 series data logger.
Figure 5: 3.5 mm Stereo Plug Wiring
Once the VP-4 has been connected to your Em50 series data logger,
configure the logger port for the VP-4 and set the measurement inter-
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