Installing refractometer with integrated fittings - PR53M - PR53

PR53M Installation Guide
Document code
M213018EN
Revision
B
ft:locale
en-US
Product
PR53
PR53M
Document type
User guide

Plan the installation location carefully before installation. See Choosing installation location.

  • Refractometer
  • Plastic nuts
  • Tube fittings
  • 5-mm Allen key
  • Pliers
  • 8-mm flat head screwdriver
These are general instructions for mounting the refractometer. Plan the process‑specific installation according to your requirements. Contact Vaisala technical support for further assistance if needed.
  1. Familiarize yourself with the safety instructions of the installation site.
  2. Make sure the process line is depressurized and empty.
  3. Measure the needed space for the refractometer and the connection.
  4. Use the refractometer support to support the weight of the refractometer. Loosen the bolts with a 5‑mm Allen key if you need to rotate the sensor support.
    The refractometer support prevents the weight of the refractometer from pulling at the non-metallic piping.
  5. Remove the light cover bolts using an 8‑mm flat head screwdriver. Keep the bolts for later use.
  6. Install the refractometer into the process pipes with the nuts provided. Make sure the cable glands on the refractometer are in a downward position.
    1. If you are using a flare-type connection, insert the nut over the pipe. Heat the end of the pipe and push it over the connection. Finger-tighten or use pliers to tighten the nut.
    2. If you are using a pillar-style connection, insert the nut over the pipe. Install the bushing into the pipe and push the pipe into the connection. Finger-tighten or use pliers to tighten the nut. Follow manufacturer's installation instructions for pillar-style fittings.
    CAUTION Do not over-tighten the plastic nuts as they may break.
    If you need to remove the flow cell before installing the refractometer, install the tube fittings before the end plate. Tighten the end plate bolts to 0.5 Nm with a 3‑mm Allen key.
  7. Reinstall the light cover. Tighten with an 8‑mm flat head screwdriver.
  8. Make sure the refractometer is firmly in place and that there is no excessive vibration. Support the piping if needed.