Oakton T-100WL Instruction Manual

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T100WL Portable Turbidity Meter

35635-10

Instruction Manual

- 2 -

Table of Contents

1 Introduction ................................................................................................................................... - 3 -

2 Technical Specifications .............................................................................................................. - 4 -

3 Instrumentation Illustration ......................................................................................................... - 5 -

3.1 Summary ................................................................................................................................. - 5 -

3.2 Configuration ......................................................................................................................... - 6 -

3.3 Display Mode .......................................................................................................................... - 6 -

3.4 Keypad .................................................................................................................................... - 7 -

3.5 Power supply .......................................................................................................................... - 8 -

3.6 Data Save, Recall, and Deletion ........................................................................................... - 8 -

3.7 Setting for the first time use. .............................................................................................. - 10 -

4 Calibration.................................................................................................................................... - 10 -

4.1 Preparation for Calibration ................................................................................................. - 10 -

4.2 Calibration Procedure (Take 0 NTU and 20 NTU as an example) ................................... - 11 -

4.3 Notes for Calibration ........................................................................................................... - 12 -

5 Turbidity Measurement ............................................................................................................... - 13 -

5.1 Sample Vial Handling .......................................................................................................... - 13 -

5.2 Measurement Preparation................................................................................................... - 14 -

5.3 Measurement Mode ............................................................................................................. - 14 -

5.4 Notes for Measurement ....................................................................................................... - 15 -

6 Parameter Setup .......................................................................................................................... - 15 -

6.1 Operation .............................................................................................................................. - 15 -

6.2 Parameter Setup Reference Table ..................................................................................... - 16 -

6.3 Parameters Description ...................................................................................................... - 16 -

7 Data Output via USB Port ........................................................................................................... - 17 -

8 Lamp Replacement ..................................................................................................................... - 19 -

9 Warranty ....................................................................................................................................... - 20 -

*Fully charge the battery before first-time use.

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1 INTRODUCTION

Thank you for purchasing Oakton T100WL Portable Turbidity Meter (hereafter referred to as the
instrument). The instrument uses tungsten filament lamp as the light source and 90° scattering method,
which is compliant with U.S EPA 180.1 method for the determination of turbidity in drinking, ground,
surface, and saline waters, domestic and industrial wastes. It is suitable for on-site and laboratory use.

The instrument provides accurate results with simple measurement, calibration, and data management,
giving you unparalleled confidence in test results and ease of use.
⚫ Intelligent functions such as automatic calibration, operation navigation, parameter setup, real-time

clock display, calibration date check, automatic power off, low voltage indication, and a replaceable
tungsten filament lamp.

⚫ Large TFT color screen with blue background for measurement mode, green background for

calibration mode.

⚫ Operation guidance and reminders in the process of calibration, measurement and parameter

setting.

⚫ TruRead measurement mode automatically takes multiple consecutive readings, and calculate their

average, minimum and maximum value, as well as displaying each set of data in a brief test report.
TruRead is a much better way to determine the true turbidity of your samples, rather than relying on
just one reading. It's especially suitable for sample solutions with rapid settling and continuous
measurement changes.

⚫ Zero turbidity error reminder: the instrument has zero-point calibration and zero-point error reminder

to ensure measurement accuracy for low turbidity solutions.

⚫ 200 sets of data storage with USB data output to PC (Windows-based).
⚫ 3.7V rechargeable lithium battery can supply power for over 20 hours of continuous measurement.

The battery life is 5 times longer compared with tungsten lamp turbidimeter in the market using AA
alkaline batteries.

⚫ Multi-language operating system, including English, Spanish & Simplified Chinese.
⚫ The instrument’s structure meets IP67 water-resistant grade and is suitable for use in harsh

environments.

⚫ Everything comes in a rugged carrying case, including accessories such as calibration solutions,

test vials, USB charger, and more.

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2 TECHNICAL SPECIFICATIONS

Specification

Description

Measurement

Method

90° scattering measurement, U.S EPA180.1 compliant

Light Source

Tungsten filament lamp

Measuring Range

0 to 1000 NTU (FNU), automatic range switch

0.01 to 19.99 NTU(FNU)

20.0 to 99.9 NTU(FNU)
100 to 1000 NTU(FNU)

Accuracy

≤ ±2% of reading+ stray light

Repeatability

≤ ± 1% of reading or 0.02 NTU(FNU) (the greater of the two)

Resolution

0.01/0.1/1 NTU (FNU)

Stray Light

≤0.02 NTU (FNU)

Calibration

Standard

AMCO Polymer or Formazin Solution：0, 20, 100, 400 and 800NTU (FNU)

Detector

Silicon photovoltaic

Measuring Mode

Normal measurement and TruRead measurement

Data Storage

200 groups

Data Output

USB to PC

Calibration Record

Calibration date and time

Display

TFT color screen

Sample Vial

Φ25×60 mm，high borosilicate glass with lid

Sample Vial

Volume

18 ml

Power supply

3.7V Rechargeable lithium battery

Working Condition

Temperature: 0 to 50°C（32°F to 122°F）； Relative humidity：

0 to 90% at 30°C, 0 to 80%at 40°C, 0 to 70% at 50°C, no condensation

Instrument sealing

grade

IP67

Certificates

ISO9001:2015 and CE

Limited Warranty

2 years

Dimension and

Weight

Meter: (90×203×80) mm/385g

Test Kit: (310×295×110) mm/1.5kg

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3 INSTRUMENTATION ILLUSTRATION

3.1 Summary

①

Flip cover of the sample vial holder (Close the
cover when measuring)

⑦

Dust proof plug (Take off the plug when
measuring)

②

Housing

⑧

Sample vial holder

③

Display

⑨

Calibration vials or sample vials

④

Keypad

⑩

Positioning mark (Align the mark with the mark
on the calibration vial or sample vial)

⑤

USB Port

⑪

Built-in lithium battery (Rechargeable)

⑥

Lamp cover

Diagram-1

④

①

②

③

⑥

⑤

⑦

⑧

⑨

⑩

⑪

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3.2 Configuration

3.3 Display Mode

①

Calibration Solutions：

0.0, 20, 100, 400, 800 NTU

②

Carrying case

③

T100WL Turbidimeter

④

Microfiber cloth

⑤

Power adaptor (5V 1A)

⑥

Software flash drive

⑦

Silicone oil (10 ml)

⑧

Sample vials×6

⑨

USB Cable (under the meter)

⑩

User Manual

Diagram-2

① Measurement Mode
② Measurements and unit
③ Operation Guide
④ Battery icon
⑤ Date and time

Measuring

Mode

① Calibration solution
② Measurements and unit
③ Progress bar
④ Operation guide

Calibration

Mode

①

②

③

④

⑤

⑥

⑦

⑧

⑨

⑩