Checkline TI-25MXT Thru-Paint Ultrasonic Thickness Gauge with 8 Presets, Adjustable Velocity and the ability to Calibrate to a Sample of Known Thickness

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Includes NIST-Traceable Calibration Certificate, CE-Certified

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5-Year Warranty, Made in USA

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Datalogging: Built-in datalogging for 10,000 data values, USB Output

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Measuring Range on Steel (with standard T-102-2700 probe)
Pulse-Echo (PE) Mode (Pit & Flaw Detection) - 0.040 to 8.00 inches / 1.00 to 199.9mm
Echo-Echo (EE) Mode (Through Paint & Coatings) - 0.100 to 1.000 inch / 2.54 to 25.40 mm

Total Measuring Range (Probe Dependant)
Pulse-Echo (PE) Mode (Pit & Flaw Detection) - 0.025 to 36.000 inches / 0.63 to 914.4 mm
Echo-Echo (EE) Mode (Through Paint & Coatings) - 0.100 to 1.000 inch / 2.54 to 25.40 mm

The Checkline TI-25MXT Wall Thickness Gauge accurately measures wall thickness and the extent of corrosion of all metals, ceramics, glass and most rigid plastics from one side. When operated in E-E Mode (Thru-Paint Mode), the coating is eliminated from the reading and the gauge will display only the thickness of the metal wall.

Checkline TI-25MXT Features include Automatic or Manual Probe Zero maximizing accuracy, 5-position Gain Adjustment to help located the correct backwall echo and to penetrate the walls on sound-attenuating materials such as cast metals and thick materials. It also features Differential mode, Hi-Low Alarms with audible and visual indicators and Scan mode that captures the minimum thickness at 100 measurements per second (100 Hz). It also includes a special Velocity Mode to measure in terms of velocity for nodularity testing.

The gauge and probe have a protection rating of IP67, is impact-resistant and environmentally sealed to provide trouble-free operation under the toughest field conditions. The TI-25MXT is covered by a 5-Year Limited Warranty, CE-certified and is proudly Made in the USA.

The TI-25MXT can be used with any of the following hi-damped dual-element transducers specifically designed for use with E-E Thru-Paint Mode.

T-101-2700, 3/16" Diameter, 5.0 MHz Hi-damped transducer for thru paint measurement
T-101-3700, 3/16" Diameter, 7.5 MHz Hi-damped transducer for thru paint measurement
T-102-2700, 1/4" Diameter, 5.0 MHz Hi-Damped transducer for thru paint measurement - Standard Probe
T-102-3700, 1/4" Diameter, 7.5 MHz Hi-Damped Transducer for thru paint measurement
T-104-2700, 1/2" Diameter, 5.0 MHz Hi-Damped Transducer for thru paint measurement
T-104-9700, 1/2" diameter, 3.5 MHz Hi-Damped transducer for thru paint measurement

Kit Contents

Checkline TI-25MXT Thru-Paint Ultrasonic Wall Thickness Gauge Probe 4 oz. bottle of coupling fluid 2 AA batteries NIST-Traceable Calibration Certificate Carrying case Instruction Manual

Features

• Includes NIST Traceable Calibration Certificate
• Includes both Pulse-Echo Mode (Pit & Flaw Detection) and Echo-Echo Mode (Through Paint & Coatings Mode)
• Using the standard probe T-102-2700, the gauge will read thru 0.040" coating thickness (1 mm)
• Using one of the optional probes T-104-2700, the gauge will read thru 0.075" coating thickness (1.9 mm)
• Calibrate to a sample of known thickness which automatically calculates the optimal acoustic velocity
• 2-Point Calibration to optimize linearity over a wide measurement range, automatically calculates the optimal acoustic velocity
• Scan mode, 100 readings/sec. Probe is slid over a large measuring area, the minimum thickness during the "scan" will be displayed
• Adjustable GAIN in 5 steps to fine tune the gauge for use on challenging materials or applications
• Differential mode, Hi-Low Alarms with audible and visual indicators
• User-selected Manual or Auto Zero of Transducer
• The extruded aluminum housing is impact-resistant and environmentally sealed (IP 65) 
  to provide trouble-free operation under the toughest field conditions
• Special-purpose probes are offered for a variety of applications (1 to 10 MHz)
• Selectable Backlight ON/OFF/AUTO
• Resolution of 0.001 inch (0.01 mm)
• 5 Year Warranty, CE-Certified and Made in USA

Specifications

Range in Steel	Pulse-Echo Mode (Pit & Flaw Detection) measures from 0.025 to 19.999 inches  (0.63 to 500 millimeters) Echo-Echo Mode (Through Paint & Coatings) measures from 0.100 to 1.000 inch  (2.54 to 25.40 millimeters) (range depends upon probe selected) - five probes to choose from
Resolution	0.001 inch (0.01 mm)
Velocity Range	0.0120 to .7300 in/μs. 305 to 18,542 meters/sec
Probe (Standard)	1/4", 5 MHz Hi-Damp Dual Element Transducer, actual wearface is 5/8" (17mm), p/n T-102-2700
Probes (optional)	1 to 10 MHz, 3/16" up to 1 inch (custom probes available)
Probe Wearface	PEEK (Polyethylethylkytone)
Cable	1.2m (4ft.) waterproof cable with non-polarized, quick-disconnect connectors
LCD Display	Multi-function 7 segment 4.5 digit liquid crystal display with 0.500" digit height. Two 0.125 in14 segment fields for labels and values, and one 7 segment field for labels and values. Additional icons to indicate features and modes
Display Backlight	Backlight is selectable on/off/auto, and selectable brightness (Lo, Med, Hi) options
Display Update Rate	10 Hz (10 updates/sec)
Temp. Limits	Ambient: -30 to 75° C (-22 to 167° F) Material: -20 to 100° C (0 to 200° F) High temperature probes available
Battery Type	2x AA batteries (rechargeable batteries can be used)
Battery Life	45 hours continuous use
Weight	308 grams (11 ounces)
Dimensions	63.5 x 131.3 x 31.5 mm (2.5" x 5.17" x 1.25")
Accessories	Probe/cable assembly, 4 oz. bottle of coupling fluid, NIST Calibration Certificate, 2 AA batteries, operating instructions, hard-plastic carrying case.
Housing	Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed)
Housing Rating	IP65
Certifications	NIST Traceable and MIL-STD-45662A
Keypad	Sealed membrane that is resistant to both water and petroleum products Seven or eight tactile-feedback keys
Pulse Repetition Frequency (PRF)	200 Hz (200 pulses/sec)
To Lock Settings	With gauge powered off, press and hold the "+" key while powering on the gauge The LOCK icon will be illuminated on the Display
To unLock Settings	With gauge powered off, press and hold the "-" key while powering on the gauge The LOCK icon will turn off
GAIN Adjustment	Adjustable GAIN 5-position (VLOW, LOW, MED, HIGH, VHI), in 3dB steps, 40-52dB
Time Dependent Gain (TDG)	Used in both pulse-echo (P-E) and Echo-Echo (E-E) modes depending on transducer and frequency selected
Measuring Mode	Pulse-Echo (P-E), Echo-Echo (E-E, Thru-Paint Mode), Scan, Differential, Alarm and VX-velocity
Pulser	150 volt square wave pulser
Warranty	Gauge: 5 Years Probes: 90 Days

Measuring Limits

	Minimum Radius for Convex Surfaces	0.350" (8.89 mm)
	Minimum Radius for Concave Surfaces	3" (76.2 mm)
	Minimum Headroom	1" (25.0 mm)
	Minimum Sample Diameter	0.150" (3.8 mm)
	Minimum Substrate Thickness - F	na
	Minimum Substrate Thickness - NFe	na

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Downloads

Checkline TI-25MXT Thru-Paint Ultrasonic Wall Thickness Gauge - Data Sheet

Checkline TI-25MXT Thru-Paint Ultrasonic Wall Thickness Gauge - Instruction Manual