Typical application for the HMS1655 - Triatek - LIT-12014409 - HMS1655 Fume Hood Controller

HMS1655 Fume Hood Controller User Guide

Product name
HMS1655 Fume Hood Controller
Document type
User Guide
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Revision date
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Since the HMS1655 uses a full-featured controller with multiple analog and digital I/O resources and an intuitive touchscreen user interface for most application requirements, it is a very effective solution for serving as a comprehensive fume hood or laboratory controller. The following details the complete installation and configuration process for using the HMS1655 as a fume hood controller monitoring the face velocity at the sash opening, the sash position or height in inches, the ambient room temperature, relative humidity, and exhaust air flow volume. This application utilizes all 4 universal analog inputs, one thermistor input, two analog outputs, one digital input, and one relay output. In addition to the HMS1655 fume hood controller with a sidewall-mounted velocity sensor, the following components will be used to satisfy the application requirements:

  • Combination Temperature & Humidity Sensor, BAPI┬« part no. BA/10K-2-H200-R
  • Sash Position Sensor, part no. SPS-50
  • Differential Pressure Transmitter, Ashcroft┬« part no. CX-4-MB2-10- 1IWL
  • Set the hardware configuration DIP switch settings on the XMS-1655 CPU controller board as follows:
    • S1: positions 1, 2, 3, 4, 5, 6 OFF; positions 7 and 8 ON
    • S3: position 5 OFF; positions 1, 2, 3, 4, 6, 7, 8 ON
    • S4: positions 1 through 4 ON