Vaisala MGP260 Series, User Manual, Page: 23 / 92

• Review the wiring diagram included in this document for power supply requirements:
MGP260 probes require a dedicated 18 … 30 VDC power supply. Note that in addition to
the power supply input for the probe, each analog output must be externally powered.
• Inspect the probe for any possible damage or dirt that could compromise the leak
tightness of the device (for example, bent or punctured parts of the probe body, or dirt
that prevents the connection box from closing fully).
• When selecting the cable glands and plugs for your application, make sure they are Ex
compliant.
The NPT threads of the probe can have sharp edges. To avoid injury when
touching the threads, wear protective gloves.
The probe can cause a foot injury if dropped. To avoid foot injuries, wear
protective shoes.
More information
‣ Wiring (page 28)
3.1.3 Installation option: ball valve installation
Figure 8 (page 22) shows an example MGP260 ball valve installation. The figure highlights the
correct wiring routes and shows the recommended installation depth and orientation.
Always use a separate cable for the optional (Ex ia) external
pressure or temperature sensor input wiring (1), and make sure the wiring
remains separated from the terminals and wiring (2) on the other side of the
metal barrier (3) on the component board.
CAUTION!
Chapter 3 – Installation
21
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