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Steam Meter Pulse Device Installation

RIO Tronics RegistRead

Wire Type: 18 ga shielded for 30 feet – 5,000 feet distance


  1. Remove the plastic or glass lens covering the register
  2. Remove the pointer from the appropriate dial; small diagonal cutter is recommended to pry up or trim the pointer
  3. Place the RIO Tronics magnet rotor onto the exposed pointer shaft. Adjust height of rotor above index face for approximately .040” clearance. RIO Tronics manufactures a wide variety of rotors to accommodate specific meter indexes based on manufacturer and type of index.
  4. Place the RegistRead housing with switch and wire adjacent to and over the rotor and check for a flush fit on the register face. Housings are available in different circle printings for a variety of orientations
  5. For Cadillac Ceramic index: RIO Tronics will warranty the installation with approved bonding,   including Huntsman Araldite 2021, supplied by RIO Tronics . Mix the 2 parts and apply to the bottom of the RegistRead housing. Place in the correct position over the rotor,  and set assembly aside for five minutes.
  6. Replace the register and cover, drill a hole in the  register base to accommodate the wire exit, and run the wire through the hole. If space allows, use an overhand knot in the wire for strain relief. RIO Tronics supplies grommets for the cable, use a 7/32” hole for the grommet
  7. Test the installation using a multimeter or ohm meter on the red and black wires, noting the proper change in resistance for each output- typically 100 ohms/infinite, 2 x /revolution of the dial