Checkline TI-25DL User Manual

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TABLE OF CONTENTS

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3.0 Overview of Gauge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 Gauge 3.6 Display Backlight

3.2 Contents of Kit 3.7 Probe Zero Plate

3.3 Probe 3.8 Connector Probe & Test Plate

3.4 Keypad 3.9 Battery Compartment (Battery Replacement)

3.5 LCD Display

4.0 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Connecting The Probe 4.4 Changing Units — inches to mm

4.2 Turn On The Power 4.5 Checking Calibration with the Test Plate

4.3 “Zeroing” The Probe 4.6 Preparation of the Surface

5.0 Quick Start Instructions — Steel Thickness. . . . . . . . . . . . 13

6.0 Calibration For Measuring Thckness

Of Materials Other Than Steel . . . . . . . . . . . . . . . . . . . . . . . . 15

6.1 Acoustic Velocity Table

6.2 Changing Calibration — Acoustic Velocity is Known

6.3 Changing Calibration — Acoustic Velocity is Not Known

6.4 Performing a 2-Point Calibration

7.0 Description of Measuring Modes . . . . . . . . . . . . . . . . . . . . . 20

8.0 Alarm & Beeper Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.0 Measuring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.1 General Notes On Measurements

9.2 Measurements Of Pipes Or Cylindrical Parts

9.3 Measurements On Materials At High Temperatures

10.0 Using the Built-in Data Logger . . . . . . . . . . . . . . . . . . . . . . . 27

10.1 Storing Data

10.2 Clearing Individual Storage Locations

10.3 Clearing the Contents of a File

10.4 Clearing Data From All Files Simultaneously

11.0 Downloading Data To A Computer Or Printer. . . . . . . . . . . 30

11.1 Download Data to a Computer

11.2 Download Data to a Printer

11.3 Download Data to Check•Line P-25DL Printer

12.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

13.0 Material Safety Data Sheet (MSDS). . . . . . . . . . . . . . . . . . . . 34

14.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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NOTES

OI908L

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14.0 WARRANTY

ELECTROMATIC Equipment Co., Inc. (ELECTROMATIC) warrants to the
original purchaser that this product is of merchantable quality and confirms
in kind and quality with the descriptions and specifications thereof. Product
failure or malfunction arising out of any defect in workmanship or material
in the product existing at the time of delivery thereof which manifests itself
within one year from the sale of such product, shall be remedied by repair
or replacement of such product, at ELECTROMATIC’s option, except where
unauthorized repair, disassembly, tampering, abuse or misapplication has
taken place, as determined by ELECTROMATIC. All returns for
warranty or non-warranty repairs and/or replacement must be authorized by
ELECTROMATIC, in advance, with all repacking and shipping expenses
to the address below to be borne by the purchaser.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO, THE WARRANTY OF MERCHANTABILITY AND
FITNESS FOR ANY PARTICULAR PURPOSE OR APPLICATION.
ELECTROMATIC SHALL NOT BE RESPONSIBLE NOR LIABLE
FOR ANY CONSEQUENTIAL DAMAGE, OF ANY KIND OR NATURE,
RESULTING FROM THE USE OF SUPPLIED EQUIPMENT, WHETHER
SUCH DAMAGE OCCURS OR IS DISCOVERED BEFORE, UPON OR
AFTER REPLACEMENT OR REPAIR, AND WHETHER OR NOT SUCH
DAMAGE IS CAUSED BY MANUFACTURER’S OR SUPPLIER’S
NEGLIGENCE WITHIN ONE YEAR FROM INVOICE DATE.

Some State jurisdictions or States do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation may not apply
to you. The duration of any implied warranty, including, without limitation,
fitness for any particular purpose and merchantability with respect to this
product, is limited to the duration of the foregoing warranty. Some states
do not allow limitations on how long an implied warranty lasts but, not
withstanding, this warranty, in the absence of such limitations, shall
extend for one year from the date of invoice.

ELECTROMACTIC Equipment Co., Inc.
600 Oakland Ave. Cedarhurst, NY 11516—USA
Tel: [phone]/ Tel: [phone]/ Fax: [phone]

Every precaution has been taken in the preparation of this manual. Electromatic Equipment Co.,
Inc., assumes no responsibility for errors or omissions. Neither is any liability assumed for dam­ages resulting from the use of information contained herein. Any brand or product names men­tioned herein are used for identification purposes only, and are trademarks or registered trade­marks of their respective holders.

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1.0 INTRODUCTION

The CHECK•LINE®TI-25DL Ultrasonic Thickness Gauge measures the
wall thickness of metals, glass, ceramics and many rigid plastics. This gauge
uses the “pulse-echo” principle of ultrasonic testing where a short ultrasonic
signal is transmitted from the probe. The signal travels through the measure­ment sample until it is reflected back towards the probe from the back side
of the material. The elapsed time for the complete cycle is measured and
converted to an accurate thickness reading.

The TI-25DL can be used to measure the extent of corrosion on the oppo­site, inaccessible side of the wall by using the “Subtractive Method.” When
the thickness of the original wall is known, subtracting the thickness reading
obtained from the gauge will determine the extent of corrosion at the point
of probe placement. If the original wall thickness is not known, test readings
should be made along a grid of equally-spaced points to obtain a profile of
the thickness readings. The smallest thickness reading will locate the area of
greatest concern.

The TI-25DL is factory-set to measure steel. The gauge can be easily
adjusted for accurate thickness readings on other materials. Refer to
Sections 6.0 through 6.3. To change the measuring units from inch
(factory setting) to mm refer to Section 4.4.

The TI-25DL incorporates a built-in data logging system which permits the
end user to store up to 1000 measurements in 10 separate batches. The
stored data can be printed or downloaded to a PC using the supplied Data
Transfer Program and serial cable.

2.0 PRECAUTIONS

Do not use the standard probe in applications where material temperatures
exceed 200 °F (100 °C) as the probe will be damaged. Special High
Temperature Probes should be used. Consult factory.

Keep the gauge free of dust (especially metal powders, carbon, etc.) as they
will damage the gauge. Use a damp cloth to clean the gauge after use.
DO NOT USE CHECMICAL SOLVENTS OF ANY KIND.

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3.0 OVERVIEW OF GAUGE

3.1 Gauge

Probe

Receptacles

Red LED

Green LED

Probe Zero Test Plate

(battery compartment cover)

Serial Output
Port

Backlit LCD
Display

Bottom of Gauge

Probe

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13.0 MATERIAL SAFETY DATA SHEET (MSDS)

Section 1— Product Identification

Product Name: TI-25DL Generic Name: Ultrasonic Couplant
Manufacturer: Electromatic Equpt. Co. NFPA Hazardous Materials Identification System (est)

Health 0 Flammability 0 Reactivity 0

Section 2— Hazardous Ingredients

This material does not contain any ingredients having known health hazards in concentrations
greater than 1%. This material does not contain any known or suspected carcinogens.

Section 3 — Physical Data (nominal)

Boiling Point: >220°F Freezing Point: <20°F
Vapor Pressure: N/A Evaporation Rate: N/A
Specific Gravity: >1.0Z Solubility in Water: complete
pH: 7.35 – 7.9 Acoustic Imp.: 1.726 x 10

6

Vapor Density: N/A Appearance and Odor: water white, opaque gel; bland odor

Section 4 — Fire and Explosive Hazard Data

Flash Point: none Upper Exposure Limit: none Lower Exposure Limit: none
Special Fire Fighting Procedures: N/A Extinguishing media: N/A
Unusual Fire and Explosion Hazards: none

Section 5 — Reactive Data

Stability: Stable Conditions to Avoid: none
Incompatibility (Materials to Avoid): none known
Hazardous Polymerization: will not occur
Hazardous Decomposition or Byproducts: none known

Section 6 —- Health Hazard and First Aid Data

Routes of Entry

1

:

Skin: not likely Ingestion: not normally Eyes: not normally Inhalation: no

Effects of Overexposure:

Acute: May cause temporary eye irritation Chronic: none expected

First Aid Procedures:

Skin: Remove with water if desired. Eyes: Flush with water for 15 minutes.
Ingestion: For large quantities, induce vomiting and call a physician Inhalation: N/A

Section 7 - Storage and Handling Information

Precautions to be taken in handling and storage: Store between 20 °F and 120 °F. Spills are
slippery and should be cleaned up immediately. Steps to be taken in case material is released or
spilled: Pick up excess for disposal. Clean with water. Waste disposal method: Dispose of in
accordance with federal, state, and local regulations.

Section 8 — Control Measures

Respiratory Protection: not required Ventilation: not required
Protective Gloves: on individuals demonstrating sensitivity to TI-25
Eye Protection: as required by working conditions Other Protective Equipment: not required

1. TI-25DL contains only food grade and cosmetic grade ingredients.

Membrane
Keypad

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3.2 Contents Of Kit

The TI-25DL is supplied as a complete kit with the following:
a. Gauge
b. Two (2) AA batteries

(installed in gauge)
c. Probe/cable assembly
d. 4 oz. Bottle of coupling fluid
e. Serial Output cable
f. Data Trasfer software program
g. Foam-filled carrying case

Not shown: NIST-traceable
calibration certificate and
Operating instruction manual

3.3 Probe

The probe transmits and receives the ultrasonic sound waves which
the TI-25DL uses to calculate the thickness of the material being
measured. The probe must be used correctly in order for the TI-25DL
to produce accurate and reliable results.

A small amount of “coupling” fluid, commonly called “couplant” is
used to insure that there are no air gaps between the probe and the
material surface. Grasp the probe by the knurled aluminum housing
and place it on top of the material surface. Apply moderate pressure
to the top surface of the probe with your thumb (A) or index finger
(B) to stabilize the probe and to keep the wearface seated flat against
the measurement surface.

A

B

Probe
Wearface

a

f

d

e

c

g

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12.0 SPECIFICATIONS

Range* 0.025–6.00" (0.60–150.0 mm)

Other ranges available with optional probes.

Resolution .001"

(0.01 mm)

Display 4

1

⁄

2

-Digit, 0.5" Backlit LCD

Velocity
Range 0.0787 – 0.3937 in./µs

(2000–10,000 m/sec.)

Probe 7.5 MHz, 0.25" Diameter (6.35 mm)

Probe
Wearface PEEK (Polyethylethylkeytone)

Cable 4 ft.

(1.2 m) waterproof cable with non-polarized,
quick-disconnect connectors. Optional lengths up to
100 ft. (30 m).

Temp. Limits Ambient

: –20 to 120 °F (–30 to 50 °C)
Material: 0 to 200 °F (–20 to 100 °C)
Special high temperature probes are optionally available.

Battery Type Two AA batteries

Battery Life 200 hours

Weight 10 ounces

(280 g), with battery

Size 2.5 x 4.5 x 1.25"

(64 x 114 x 32 mm)

Accessories
Included Probe/cable assembly. 4oz. bottle of coupling fluid,

NIST Calibration Certificate, 2 AA batteries, operating
instructions, hard-plastic carrying case.

Warranty Gauge

: 5 years

Probe: 90 days

*Measuring Range indicated is for steel. Actual range for other materials will vary
based upon the material’s sonic velocity and attenuation.

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3.4 Keypad

The TI-25DL is supplied with a membrane keypad

mounted on the front of the instrument body. It con-

sists of nine (9) keys, each performing one or more

functions as described below.

The MODE key is used to toggle through the various fea­tures and settings including alarm mode, beeper, back light,
units, scan mode and differential mode. The MODE key is
used in conjunction with the UP & DOWN ARROW and
SEND keys to enable and disable the various features and
settings.

The MEM key enables/disables the data logging features of
the TI-25DL. This key is used in conjunction with the UP &
DOWN ARROW keys as well as the SEND and CLR keys.
These keys in different combinations control all of the data
logging functions. For additional information, refer to Section

10.0, Using the Data Logger.

The PROBE ZERO key is used to “zero” the probe in a sim­ilar way as a micrometer is “zeroed” before use. If the tool is
not zeroed correctly, the measurements will not be accurate.

The UP ARROW key has three (3) functions. In the
Calibration mode, this key is to increase numeric values on
the display. An "auto-repeat" function is built in, so that when
the key is pressed and held down, the numeric values will
change at an increasing rate. When the Mode function is acti­vated, the UP ARROW key scrolls through the various fea­tures and settings of the TI-25DL. When the Memory mode
is activated, the UP ARROW key scrolls through the various
batches, storage locations and functions of the data logger.
For additional information, refer to Section 10.0, Using the
Data Logger.

The SEND key is used to store measured values to internal
storage locations or downloading stored data to external
devices such as a serial printer or computer. The SEND key
is also used to select data logging functions in the TI-25DL.
For additional information, refer to Section 10.0, Using the
Data Logger.

MODE

MEM

SEND

PROBE

ZERO

3. Press the key to enter the file setup. The currently selected file

number will be displayed (F-01, F-02 .... F-10).

4. Press the key to select the currently displayed File Number for
printing or press the or keys to index the File Number to the
desired File Number to be printed.

5. Press the key to select the desired file for printing. The display
will alternately flash “FILE” and “F-XX” (where “XX” is the File
Number 01, 02 ..10).

6. Press the key once. The display will alternately flash “Prnt” and
“F-XX” (where “XX” is the File Number 01, 02 ..10).

7. Press the key to print a report using the data stored in the selected
File Number.

8. Press the key at any time to exit the data logging mode and return
to measurement mode.

11.3 Download Data to Check•Line P-25DL Printer

Perform all of the steps detailed above (Sec. 11.2, steps 1–8), except in
step 6, instead of selecting “Prnt,” select “LISt.”

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MODE

MEM

PROBE
ZERO

CAL

SEND

CLR

ON

OFF

The DOWN ARROW key has three (3) functions. In the
Calibration mode, this key is to decrease numeric values on
the display. An "auto-repeat" function is built in, so that when
the key is pressed and held down, the numeric values will
change at an increasing rate. When the Mode function is acti­vated, the DOWN ARROW key scrolls through the various
features and settings of the TI-25DL. When the Memory
mode is activated, the DOWN ARROW key scrolls through
the various batches, storage locations and functions of the
data logger. For additional information, refer to Section 10.0,
Using the Data Logger.

The CAL key is used to enter and exit the Tl-25DL’s two
Calibration modes. The Acoustic Velocity Calibration mode is
used to adjust the acoustic velocity for the material to be
measured. The Measurement Calibration mode is used to
increase or decrease the displayed thickness reading to cali­brate to a known thickness value.

The CLR key is used exclusively with the data logging
feature to clear the contents of a batch or delete individual
measurement values. The CLR key is also used to store an
"obstruct" (ObSt) to an individual storage location. The
"ObSt" symbol would indicate that the user was unable to
take a reading at that specific location. For additional infor­mation, refer to Section 10.0, Using the Data Logger.

The ON/OFF key is used to turn the power on as well as
turning the power off. If the Tl-25DL is idle for five (5)
minutes the gauge will automatically power off.

ON

OFF

CAL

CLR

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11.1 Download Data to a Computer

Once the TI-25DL is connected to the computer and the communications
program is running, the data can be downloaded by performing the follow­ing steps:

1. Turn on the TI-25DL power by pressing the key.

2. Press the key to activate the data logger.

The display will alternately flash “FILE” and the “F-XX” (where XX is
the currently selected File Number). Please note that there are 10
separate files (F-01 through F-10)

3. Press the or key twice until the display alternately flashes
“Send” and “ALL”.

4. Press the key to download (send) the stored data from all of the
Files to the computer.

5. Press the key to exit the data logging mode and return to
measurement mode.

11.2 Downloading Data to a Printer

In addition to the possibility of downloading the stored data to a PC, the
TI-25DL can print a “pre-formatted” report on a serial printer. This report
can also be sent to a PC and then printed. The user first must select a
specific File Number (F-01 ... F10) for printing.

Set the communications parameters for the printer to:

Data Bits = 8

Parity = None
Stop Bits = 1
Baud Rate = 1200

To print the pre-formatted report to a serial printer or PC perform the
following steps.

1. Turn on the TI-25DL power by pressing the key.

2. Press the key to activate the data logger.

The display will alternately flash “FILE” and the “F-XX” (where XX
is the currently selected File Number). Please note that there are 10
separate files (F-01 through F-10)

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