HF scientific DRT-100B User Manual

DRT-100B!&!DRT-100B!RESEARCH

TURBIDIMETERS

Catalog!No.!50027!(5/00)

HF!scientific,!inc.
3170!Metro!Parkway
Fort!Myers,Florida!33916-7597
Phone:!!(941)!337-2116
Fax:!!(941)!332-7643

FOREWORD

HF!TURBIDIMETERS

HF!turbidimeters!are!manufactured!to!meet!design!criteria!for!nephelometers!as!described!in!Standard
Methods!For!Examination!of!Water! and!Wastewater.!!HF!turbidimeters!are!approved!by!the!U.S.!EPA*!as!a!means
to!measure!the!turbidity!of! potable!water,!waste!water,!and!other!liquids.

HF!turbidimeters!provide!a!linear!display!of!turbidity,!throughout!all!ranges,!in!Nephelometric!Turbidity
Units!(NTU).!!HF!turbidimeters!use!solid!state!electronic!components!because!they!resist!thermal!variation!and!are
not!affected!by!normal!line!voltage!fluctuations.

HF!turbidimeters!can! be!calibrated!using!HF!scientific!factory!certified!Secondary!Standards!or!Formazin.
Factory!calibration!is!accomplished!using!HF!scientific!Secondary!Standards,!which!are!factory!certified!traceable
to!Formazin,!therefore,!this!instruction!manual!describes! the!proper! procedures!for!calibration!of!HF!turbidimeters
using! Secondary! Standards.

HF!turbidimeter!manuals!are!designed!to!assist!the!user!in!taking!full!advantage!of!the!instrument!in!a
majority!of!its!applications.!!However,!in!the!event!that!unusual! circumstances!or!problems,!not!covered! by!this
manual,!arise!please!feel!free! to!contact!our!local!distributor!or!the! manufacturer.

HF!scientific,!inc.

3170!Metro! Parkway

Fort!Myers,!Florida!33916-7597

Phone:!!(941)!337-2116

Fax:!!(941)!332-7643

Our!engineering!staff!is!available!to!help!you!with!your!specific!needs.

*EPA!approved!means!the!instrument!meets!or!exceeds!the!design!and!performance!criteria!as!specified!in

the!United!States!Environmental!Protection!Agency!method!180.1.

DRT-100B!(5/00)

MODEL!DRT-100B

IDENTIFICATION!INFORMATION

The!DRT-100B!may!be!identified!by!its!catalog!number!and!description!listed!below:

Instrument

Catalog†No. Description

20012 Standard!Model

20052 Research!Model

Includes! additional! features:!!Alarm
Output;! Recorder! Output,! 0-1! mA;
Flow-thru! unit;! Control! Output,! 4-20
mA;!High!Range!Attenuation

DRT-100B!(5/00)

DRT-100B!(5/00)

OPERATING!INSTRUCTIONS

TABLE!OF!CONTENTS

I. SPECIFICATIONS ........................................................................................................... 1

II. INST ALLATION .............................................................................................................. 2

A. Packing!List!of! Contents ............................................................................................ 2

B. Pre-installation!Checkout ............................................................................................ 2

C. Installation!and!Start-up .............................................................................................. 2

III. MEASUREMENT!PROCEDURES ................................................................................... 3!-!5

A. Adjustable!Set!Point!Alarm!Control!-!Standard!Model!PN!!#20012 ........................... 3

B. Standardization ............................................................................................................ 3!-! 5

C. Sample!Measurement .................................................................................................. 5

IV. CALIBRATION!PROCEDURES....................................................................................... 5!-!7

A. Secondary!Standard!Set ............................................................................................. 5

B. Standard!Formazin!Solutions ...................................................................................... 6

C!. Electronic!Calibration .................................................................................................. 7

V. FEATURES!INCLUDED!WITH!THE!RESEARCH!MODEL!(PN!#20052) ..................... 8!-!9

A. Adjustable!Set!Point!Alarm!Control ............................................................................ 8

B. Recorder! Output,!0-1!mA ........................................................................................... 8

C. Flow!Through!Unit!for!Continuous!Measurement ..................................................... 8

D. Attennuation!Measurement ......................................................................................... 8

E. Control!Output,!4!-!20!mA ......................................................................................... 9

VI. OPTIONAL!FEATURE ..................................................................................................... 9

VII. SOURCE!LAMP!REPLACEMENT!AND!ALIGNMENT ................................................. 10

VIII. ACCESSORIES!AND!SUPPLIES .................................................................................... 11

WARRANTY ..................................................................................................................... 13

DRT-100B!(5/00)