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Hydrotech HDF501 Series - User Manual

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Operation and Maintenance Manual
TYPE: 1P, 1FP
SERIAL NO: ....................................
Revised: 10-09-17 EN
Drumfilter,HDF501-series

Table of Contents

Questions and Answers

  • M
    Mrs. Elizabeth SullivanAug 9, 2025
    What to do if the Hydrotech Industrial Equipment filter does not stop after the set time?
    • R
      Richard RobertsAug 10, 2025
      If the Hydrotech Industrial Equipment filter doesn't stop after the set time, first, check for any objects like biological growth creating a permanent connection between the level sensor and the filter tank and remove them. Then, try decreasing the sensitivity of the level relay by adjusting the switch towards MIN. If the problem persists, the time relay or the level relay might be defective and need replacement.
  • B
    Brenda BarreraAug 23, 2025
    Why Hydrotech Industrial Equipment filter does not start even if the water level is normal?
    • D
      David MendozaAug 25, 2025
      If the Hydrotech Industrial Equipment filter does not start, even when the water level is at the sensor, it could be due to several reasons. First, the water might have low conductivity; try increasing the sensitivity by setting the level relay switch towards MAX. Also, ensure the sensor is correctly grounded by checking all wires and the screw on the filter frame. The level relay itself might be defective and need replacement. Finally, check that the UP/DOWN switch is in the DOWN position.

Hydrotech HDF501 Series Specifications

General IconGeneral
ModelHDF501 Series
CategoryIndustrial Equipment
TypeFilter
Inlet/Outlet Size1" NPT
Filter MediaSediment
Connection Size1" NPT