Replacing transmitter module - FD70

FD70 Configuration and Maintenance Guide
Document code
M212222EN
Revision
J
Language
English
Product
FD70
Document type
User guide
WARNING Adequate instructions for the safe installation of the laser product are provided in servicing information available from the complete laser product manufacturer under paragraph (h)(2)(ii) of 21 CFR 1040.10, and must be followed.

The transmitter emits invisible laser radiation, which is harmful to the eye if viewed at a short distance. Never remove the transmitter module from its normal position without first switching off the AC (mains) power and disconnecting the transmitter cable from the device control module.

When the transmitter is contained in the enclosure, the laser class is 1M, the transmitter is safe to the eye if magnifying instruments are not used.

When the transmitter is removed from the optics unit, the laser class is 3R, the laser is hazardous to the eye.

WARNING Do not remove the transmitter module FST301 from its normal position without first switching off the AC (mains) power.
WARNING Do not look at the transmitter module FST301 from the beam direction when the transmitter is powered.
Vaisala recommends using the latest available software version.
  • 3 mm Allen key
  • T8 Torx key

Make sure that you have the replacement spare part available.

In 2022, the AC (mains) power switch (1P+1 circuit breaker) was replaced with an AC (mains) power switch (2P circuit breaker).
  1. Switch off both AC (mains) power switch and battery switch.

    Make sure that there is no AC (mains) power available for the system.

    1
    Battery switch
    2
    AC (mains) power switch
  2. Remove the protection cap from the transmitter.
  3. Remove the hood by opening the 3 screws that hold it in place and opening the connector that connects the hood to the transmitter.
    CAUTION Be careful when removing the hood to avoid damaging the connectors.
    1
    Transmitter hood
    2
    Transmitter module
    3
    Spring washer B4 DIN127 (3 pcs)
    4
    Screw M4×16 DIN912 (3 pcs)
    5
    Screw M2.5×8 ISO14583 (4 pcs)
    6
    Spring washer B2.5 DIN127 (4 pcs)
    7
    Connector (transmitter)
    8
    Connector (hood)
    9
    Gasket
    10
    Optical path
  4. Open the 4 screws that hold the transmitter module in place.
  5. Carefully detach the connectors under the transmitter module. Remove the transmitter module.
  6. Attach the connectors of the replacement transmitter module. Make sure that the parts of the connector snap in place and you hear a click.
  7. Attach the transmitter module with 4 screws.
  8. Attach the connector between the hood and the transmitter module. Attach the transmitter hood with 3 screws.
    The transmitter and receiver hoods are not identical. The transmitter window is transparent and the receiver windows are black. Check carefully before replacing the hood.
    CAUTION Make sure that the gasket is in the right place. Make sure that no cables are in the optical path inside the transmitter.
  9. Reattach the protection cap.
  10. Power up the system.
  11. Perform calibration adjustment (mode adjust) with the field calibrator kit (FDA701).