Check-line TI-25M User Manual

TI-25M
U
LTRASONIC
THICKNESS GAUGE
Operating Instructions
CHECK
•
LINE
®
BY ELECTROMATIC

Check-line TI-25M Specifications

General

Type	Ultrasonic Thickness Gauge
Resolution	0.001 inch (0.01 mm)
Accuracy	±0.02% of reading ±1 digit
Display	4-Digit LCD
Operating Frequency	5 MHz
Storage Temperature	-4°F to 140°F (-20°C to 60°C)
Power	2 x AA batteries
Power Supply	2 x AA batteries
Operating Temperature	32 to 122°F (0 to 50°C)
Units	Inches and millimeters
Measurement Range	0.025 - 6.00 inches (0.63 - 150.0 mm)

Summary

2.0 Precautions

4.0 Getting Started

4.2 Turn On The Power

4.3 “Zeroing” The Probe

Steps for zeroing the probe using the Probe Zero Plate for accurate measurements.

4.5 Checking Calibration With The Probe ZeroPlate

4.6 Preparation Of The Surface

5.0 Quick Start Instructions — Steel Thickness

6.0 Calibration For Measuring Thickness Of Materials Other Than Steel

6.1 Acoustic Velocity Table

A table listing acoustic velocities for various materials to aid calibration.

6.2 Changing Calibration - Acoustic Velocity Is Known

Steps to recalibrate when the material's acoustic velocity is known.

6.3 Changing Calibration - Acoustic Velocity Is Not Known

Steps to recalibrate when the material's acoustic velocity is unknown.

7.0 Description Of Measuring Modes

8.0 Measuring Procedure

8.2 Measurements Of Pipes Or Cylindrical Parts

How to measure thickness on pipes and cylindrical objects, including probe orientation.

8.3 Measurements On Materials At High Temperatures

Procedures for measuring thickness at elevated temperatures using special probes.

9.0 Specifications