Safe sensor insertion and removal for Safe‑Drive generation 2.1 - PR-23 - PR-23-AC - PR-23-AP - PR-23-GC - PR-23-GP - PR-23-M - PR-23-RP - PR-23-SD - PR-23-W

PR-23 Series User Guide

Document code
IM-EN-PR23
Revision
K
Language
English
Product
PR-23
PR-23-AC
PR-23-AP
PR-23-GC
PR-23-GP
PR-23-M
PR-23-RP
PR-23-SD
PR-23-W
Document type
User guide
These instructions are for Safe‑Drive generation 2.1. If you have Safe‑Drive generation 1 or generation 2, consider upgrading to generation 2.1. Upgrade from generation 1 requires shutdown, upgrade from generation 2 can be done at any time. See https://www.vaisala.com/en/safe-drive-refractometer-pr-23-sd-manuals-safety-instructions-and-safety-videos for more information on how to upgrade.
WARNING Always use the Safe‑Drive retractor for sensor insertion and removal! Safe sensor insertion and removal can only be guaranteed when the retractor tool is used and these instructions are carefully followed. Removing the sensor without the retractor tool may cause a life-threatening situation if there is any pressure in the pipe. Also, the lip seal damages easily if the retractor is not used.
WARNING Safe‑Drive is designed to protect user from process liquid and to safely insert and remove the sensor. However, do not underestimate or neglect the factory safety requirements:
  • Wear long-sleeved safety clothing as the process liquid can be either hot, corrosive, or both.
  • Use protective gloves, safety glasses and/or goggles that are suitable for use with hot or corrosive process liquids.
  • Use ear protectors.
  • Use a hard hat or helmet.
  • Use a full visor.
  • Wear hard-cap safety boots.
  • Before you start, locate the nearest emergency shower and eye wash.
  • Never operate the system alone. It is mandatory to have two operators working with the sensor insertion and removal: one operator to read the instructions and guide the second operator performing the step.
  • Familiarize yourself with the safety features of the equipment: see Safe‑Drive safety features.
WARNING The drain valves (see Mounting steam wash to isolation valve and Mounting high pressure water wash to isolation valve) should always be closed unless otherwise indicated. If the valves are left open, process liquid will leak out through them.
Recommended work zone by side of SD