Expanding PDT101 transmitter installation in CAB100B - CAB100

CAB100 Installation Guide

Document code
English (United States)
Document type
User guide
  • The PDT101 transmitters you plan to install
  • PDT Wiring Set (Vaisala item code: ASM213079SP), 1 set per 4 PDT101 transmitters. The set contains the following:
    • Cable set for PDT or safety
    • Data logger data cable
    • Data logger holder
  • DL4000 data logger(s), 1 logger per 4 PDT101 transmitters
  • Small flat head screwdriver

For item codes, see Spare parts and accessories.

Check the type of your PDT101 transmitters (voltage model / current model) before ordering new devices, as you cannot mix different types of PDT101 models in a cabinet installation. For more information, see Spare parts and accessories.
You can install only one type of device or measurement point (PDT101 transmitters, analog input channels, safety barriers, or galvanic isolators) per row in the cabinet.

In cabinet models with 5 to 8 data loggers, you need 2 serial port servers.

One serial port server controls the traffic of maximum 4 data loggers.

Make sure to number the data loggers as well as the cable sets and wires in the PDT Wiring Set before you install and connect them.

Follow the steps below to add new PDT101 transmitters to an existing set of transmitters in CAB100B. Refer to CAB100B layout diagrams when planning the installation.

For instructions on introducing PDT101 transmitters as new devices to an empty DIN rail in the cabinet, see Adding PDT101 transmitters as new modules to CAB100B.

The PDT Wiring Set consists of wiring for 4 devices. Any unused wires in the Wiring Set have been placed in the cable duct at the factory. If you have, for example, 3 PDT101 transmitters installed on a DIN rail, and want to complete the set by installing a fourth one, use the existing PDT101 wires present in the cable duct.

  1. De-energize the cabinet: switch off mains power and the circuit breaker located inside the cabinet.
    Circuit breaker
  2. Disconnect the PDT101 power wire connector from the power block located on the right-hand side of the cabinet.
  3. Remove the cable duct cover below the PDT101 mounting location.
  4. Mount the DL4000 data logger (or loggers), as shown in the following steps.
    Each set of 4 PDT101 transmitters requires a data logger of its own. If you are installing the second, third, or fourth transmitter to complete a set of 4, 5 to 8 are not relevant, as you can connect the new transmitter(s) to the existing data logger with the factory-installed cable set for PDT.
  5. Assemble the data logger holder.
    1. Place the data logger in the logger holder.
    2. Fit the cover into place.
    3. Tighten the screw by hand.
  6. Connect the logger data cable to the RS-232 serial port in the data logger.

    Use a small flat head screwdriver to tighten the screw attached to the connector.