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HF Scientific CLX - User Manual

HF Scientific CLX
40 pages
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Catalog #24420 (4/18)
REV 6.0
OWNER’S MANUAL
CLX OnLine Residual
Chlorine Monitor
HF scientific
3170 Old Metro Parkway
Ft. Myers, FL 33916
Phone: 239-337-2116
Fax: 239-332-7643
Toll Free: 888-203-7248
Email: HF.Info@Wattswater.com
Website: www.hfscientific.com

Table of Contents

Questions and Answers

  • P
    Paige HillSep 9, 2025
    What to do if there is a problem with the reagent in HF Scientific Measuring Instruments?
    • N
      nataliemartinezSep 9, 2025
      Check the reagent and lines.
  • J
    James JacksonSep 12, 2025
    What to do if there is a problem with the purge solenoid in HF Scientific CLX?
    • N
      normanmatthewSep 12, 2025
      Check the wiring and check for a clogged solenoid.
  • J
    Joshua SchultzSep 13, 2025
    What to do if there is a problem with the intake solenoid in HF Scientific CLX?
    • J
      Joseph StrongSep 13, 2025
      Check the wiring and check for a clogged solenoid.
  • C
    Carlos LeblancSep 15, 2025
    How to fix water level calibration invalid in HF Scientific Measuring Instruments?
    • K
      Kim WheelerSep 15, 2025
      Clear the fault; see section 9.2.
  • T
    Todd WalkerSep 17, 2025
    What to do if 4-20 mA is enabled and the loop is open in HF Scientific CLX?
    • D
      Daniel McgrathSep 17, 2025
      Check the 4-20 mA wiring or turn off 4-20mA if not used.

Summary

Safety Precautions and Symbols

Installation and Commissioning

Mounting and Site Selection

Guidelines for selecting an appropriate location and mounting the CLX instrument securely.

Plumbing Connections

Instructions and recommendations for connecting the CLX instrument to water sample and drain lines.

Electrical Connections

Instrument Operation

Routine Measurement Process

Steps for performing a standard chlorine measurement and interpreting the CLX display.

Instrument Calibration

Slope (Gain) Calibration

Procedure for adjusting the CLX's slope or gain based on external measurements.

Zero (Offset) Calibration

Procedure for performing a zero adjustment on the CLX using chlorine-free water.

Restore Factory Settings

Instrument Configuration Mode

Setting the 4-20 mA Output

Configuration options for enabling and setting the 4-20 mA analog output signal.

Configuring the Error Level

Setting the error level (ERLV) for the 4-20 mA output to indicate instrument problems.

Configuring the RS-485 Port

Configuring Alarms

4 mA Adjustment

20 mA Output Adjustment

Procedure for fine-tuning the 20mA output signal to match system requirements.

Troubleshooting Guide

CLX Fault Detection Levels

Explanation of the CLX's diagnostic monitoring and fault severity levels.

Setting Flow Rate

Procedure for adjusting the instrument's flow rate if variances occur.

Reagent Clogs and Flow Issues

Diagnostic Chart for Symptoms

A chart correlating symptoms with causes and cures for common CLX issues.

Technical and Customer Assistance

Contact information for HF scientific technical service and customer support.

Routine Maintenance Schedule

Replacing or Installing Reagents

Product Warranty Information

HF Scientific CLX Specifications

General IconGeneral
BrandHF Scientific
ModelCLX
CategoryMeasuring Instruments
LanguageEnglish

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