Preparing probe for installation - MGP261 - MGP262

MGP260 User Guide

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User guide
The following tools are required when installing:
  • Adjustable wrench (or a similar suitable tool) for turning the tightening nut
  • 5 mm (3/16 in) Allen key for tightening flange
  • 2.5 mm (3/32 in) Allen key for strain relief clamps
  • Input and output cables for wiring
  • Cable glands and plugs for unused lead-throughs
  • Small slotted screwdriver for screw terminals
  • PTFE tape (wide) for the probe threads
  1. Attach cable glands (not provided by Vaisala) to the wiring lead-throughs as required. Note the cable gland requirements applicable in your region (see Regional Ex certification overview). For more information on lead-through options, see Lead-through options and breather plug.
    • Use an M16x1.5 gland for the optional external sensor input wiring (Ex ia).
    • Use 1 or 2 M20x1.5 glands for wiring the 4 … 20 mA analog output, power supply input and RS-485 terminals (as required in your application).
    • Seal unused lead-throughs using Ex compliant seals.
  2. Apply PTFE tape on the probe threads.
    • Inspect the threads and remove any possible dirt.
    • Wrap 2-3 revolutions of tape in the direction of the thread spiral, starting from the first thread. Keep the edge of tape parallel to the face of the thread while wrapping.
    • Do not tape beyond the edge of the threads or leave loose tape hanging.