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for wall thickness measurement, corrosion monitoring and
general thickness measurement of most materials
SMALL,
LIGHT, ACCURATE, EASY TO USE, AFFORDABLE
Updated April 8, 2008
NDT INTERNATIONAL INC.
711 S. Creek Road, West
Chester, PA 19382-8013 U.S.A.
(610) 793-1700 FAX (610) 793-1702
Send inquiries to:
info@ndtint.com
Click here if you
are looking for coating thickness gauges.
Hand Held Ultrasonic Thickness Gauges
NDT 705
-- Inexpensive Corrosion Gauge with Scan Alarm
NDT 710
-- Easiest Gauge to use of them all - Spot Check only
NDT 715 --
Rugged Gauge with Minimum Capture Scan Mode
NDT 815 --
Multi-Purpose Gauge with A-Scan, B-Scan & Data Logger
MMX-6 --
Pulse Echo & Multi-Echo with Optional Data Logger
MMX-7 -- Pulse
Echo, Multi-Echo, B-Scan and Data Logger
NEW! CMX
Coating and Wall Thickness Gauge
with B-Scan and large capacity Data Logger
PocketMIKE --
Pocket Size & Easy to Use
T-MIKE EL -- Corrosion
Gauge with B-Scan & Data Logger
PX-7 & PX-7DL -- Precision
Measurement Gauge
PVX -- Precision
Gauge with A-Scan, B-Scan & Data Logger
Ultrasonic thickness gauges are the optimum tool for finding the remaining wall thickness of corroded or eroded metals such as found in steam and water piping, storage tanks, pressure vessels, etc. and where access is limited to only one side of the component. They can be used to measure most metals (forged, rolled, extruded, cast), many plastics, ceramics and glass, plus some rubber and fiberglass (depending upon composition). Some materials allow sound transmittal better than others and result in more accurate and reliable measurements. Surface condition and temperature variations will also affect thickness measurement.
CLICK HERE for some Special Offers
PRINCIPLE - Ultrasonic Pulse-echo with dual element transducer
MEASUREMENT RANGE - 0.04 to 20.00 inches in steel
1.0 to 500mm depending on transducer, material and surface condition
TRANSDUCER - Standard #DI510: ¼ dia. x 5 MHz
Others available for special applications
CALIBRATION - Single point calibration
FREQUENCY RANGE - 2 to 10 MHz
AUTOMATIC V-PATH CORRECTION
UNIT of DISPLAY - Selectable inch or metric
RESOLUTION - From 0.04 to 4.00” = 0.001”
More than 4.00” = 0.01”
1 to 100mm = 0.025mm
More than 100mm = 0.1mm
GAIN - Adjustable for different transducers
ALARM - Programmable lower limit activated luminous LED
DISPLAY - 0.56” high 4 digit LCD with switchable backlight
KEYPAD - Sealed, dustproof and watertight membrane keypad
SWITCH OFF - Automatic after 3 minutes of no use or manually by keypad
POWER - Two 1.5V Alkaline Batteries
OPERATING TIME - Up to 100 hours using alkaline batteries without backlight
HOUSING - Anodized extruded Aluminum
SIZE - 5”H x 2.8”W x 1.4” (125 x 70 x 35mm)
WEIGHT - 12 oz. including batteries
Standard Kit Includes the NDT-705 Gauge with alkaline batteries, 1/4" element diameter x 5.0 MHz Transducer with 4 foot long integral cable, 4 oz. Bottle of ultrasonic gel Couplant, Operation Manual, Quick Guide Card and Padded nylon Carry Bag with shoulder strap
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The NDT 710
is a small hand held thickness gauge that is very easy to use for spot measurements of
corroded or eroded metals, plastics and many other materials. Gauge memory retains
last calibration and measurement reading even after the unit has been turned off. The NDT 715 offers the same specifications as our field proven 710 gauge. It is a small, hand held thickness gauge, only 2.5"W x 4.75"H x 1.25"D and weighing only 10 oz. It is designed to make reliable spot check measurements an has a SCAN MODE that will capture and display the thinnest measurement taken during a strip scan along a length of material. Housed in a extruded, anodized aluminum housing with nickel plated aluminum end caps and a weather resistant keypad the gauge is a bit more rugged than the 710 making it suitable for your toughest working condition. The 715 is also more resistant to potential interference from RFI fields than the 710. Sound Velocity Range: 0.0492 to 0.3930 in/ms (1250 to 10,000 m/s) Size: 1.7" H. x 2.4" W. x 4.75" L (32mm x 62mm x 120mm) Temperature Range: - 20 to 120 F (-20 to 50 C) Weight: 10 oz. with batteries (284 grams) Powered by two AA 1.5V alkaline batteries. SPECIFICATIONS Common to both the NDT 710 and NDT 715 Gauges Principle:
Ultrasonic Pulse-echo with dual element transducer Back to Top
MMX-6 A dual element gauge with both pulse-echo and multi-echo SPECIFICATIONS MMX-7 A dual element multi-echo (thru paint) gauge with large digit numeric and B-Scan displays and Data Logger  Pulse-echo Mode for flaw and pit
measurement and Multi-Mode (Echo-Echo mode) to measure through and eliminate paint and
coatings. Built-in automatic gain control.Time based B-Scan feature displays a cross section of the opposite surface allowing inspectors to the contour of the back surface. Selectable low, medium, and high multiple gain settings offer the inspector the additional punch power for materials that are hard to penetrate. Store up to 64 custom setups. Factory setups are included for common applications. Alpha-numeric data logger to provides increased versatility for custom reporting needs and stores up to 12,000 measurements. Built-in transducer types offer increased linearity between transducer frequencies and diameters. High speed scan feature provides a better representation during the scanning process, by making 32 measurements per second. Remove the transducer from the test material to display the thinnest measurement found during strip scan. Use the visual alarm to set Hi and Lo limits to alert inspector when the measurements are out of tolerance. Windows PC software to transfer data to and from a PC, view B-Scans and general measurements, set break-points, view statistics, and export files into excel. 2 year limited warranty Specifications: Physical Weight: 13.5 ounces (with batteries). Size: 2.5 W x 6.5 H x 1.24 D inches (63.5 W x 165 H x 31.5 D mm). Operating Temperature: -14° to 140°F (-10° to 60°C). Keyboard: Membrane switch with twelve tactile keys. Case: Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed). Data Output: Bi-directional RS232 serial port. Windows® PC interface software. Display: 1/8 in. VGA grayscale display (240 x 160 pixels). Viewable area 2.4 x 1.8 in. (62 x 45.7mm). EL backlit (on/off/auto). Ultrasonic Measurement Modes: Pulse-Echo (flaws, pits) and Echo-Echo (thru-paint) Square wave pulser. Receiver: Selectable low, medium or high gain in pulse-echo mode. AGC gain control in ech0-echo mode. Timing: 20 MHz with ultra low power 8 bit digitizer. Power Source Three 1.5V alkaline or 1.2V NiCad AA cells. Typically operates for 150 hours on alkaline and 100 hours on NiCad (charger not included.) Auto power off if idle 5 min. Battery status icon. Measuring Pulse-Echo Mode Range: (Pit&Flaw Detection) measures from 0.025 to 9.999 inches (0.63 to 254 millimeters). Echo-Echo Mode Range: (Thru Paint & Coatings) measures from 0.050 to 4.0 inches (1.27 to 102 millimeters). Range will vary +/- depending on the thickness of coating. Resolution: +/- .001 inches (0.01 mm) Velocity Range: .0492 to .3936 in/ms 1250 to 9999 meters/sec Calibration: Single and Two point calibration option, or selection of basic material types. Units: English & Metric Display Display Views: Large Digits is Standard thickness view. Digit Height: 0.400 in (10mm). B-Scan Cross sectional view. Display speed of 15 secs per screen. Scan Bar Thickness 6 readings per second. Viewable in B-Scan and Large Digit views. Repeatability Bar Graph Bar graph indicates stability of reading Data Logger (Internal): 12000 and B-Scans (alpha numeric storage). Memory: 16 megabit non-volatile ram. Transducer Transducer Types: Dual Element (1 to 10 MHz). Locking quick disconnect “ 00” LEMO connectors. Standard 4 foot cable. Custom transducers and cable lengths available for special applications. Features 64 custom user-definable setups. Factory setups can also be edited by the user. Selectable transducer types with built-in dual path error correction for improved linearity. Alarm Mode: Set HI and LO tolerances with audible beeper and visual LEDs. Fast-Scan Mode takes 32 readings per second and displays the minimum reading found when the transducer is removed. Display continuously updates while scanning. Certification Factory calibration: traceable to national standards. Standard Kit Contents: MMX-7 instrument, 1/4" diameter x 5.0 MHz dual element transducer on 4 foot long cable, (3) size AA Alkaline Batteries, 4 oz. plastic bottle of Ultrasonic Couplant, Operation Manual, Serial Interface Cable, Data Management Software, Hard-shell Carrying Case and Certificate of Calibration. NEW!
CMX
A versatile ultrasonic thickness gauge that combines the ability to measure
wall thickness with or without coatings and simultaneously measure the coating
itself. Time-based B-scan and large data storage capacity compliment the advanced
features of this brand-new gauge. Available in standard (CMX), data logging (CMXDL)
and with data lgging, a & B-Scan and 3 independent gate (CMXDL+). |
The adjustable square
wave pulser provides the flexibility necessary for both high resolution and penetration
requirements. 
The POCKETMIKE ™
A general purpose thickness gauge that combines the instrument and transducer into a single package allowing true one hand operation. The PocketMIKE is only 1.38" diameter x 4" long and is packaged in a machined stainless steel housing environmentally sealed to IP67. The 4-button operation, Automatic On-Block Probe Zero and Automatic Gain Control provides a very capable yet very easy to use instrument.
Operator Controls & Displays
1 Power Key
2 Increase value within CAL or SETUP
3 Decrease value within CAL or SETUP
4 SETUP key to change operating modes
5 Initiates CAL function
6 Backlight Status indicator
7 Coupling indicator
8 Thickness Mode indicator
9 Velocity Mode .indicator
10 CAL Mode indicator
11 Metric or Imperial Units PocketMIKE animation
SPECIAL FEATURES
Integrated Transducer, 5 MHz
True Single Hand Operation
Machined Stainless Steel Housing
Environmentally Sealed to IP67/IEC529
Automatic On-Block Probe Zero
Automatic Gain Control
Automatic Timed Shutoff
Auto Backlight Mode
Known: Thickness Calibration
Known Velocity Calibration
4 Button Sealed Membrane Keypad
User Selectable Measurement Units
Exchangeable Probes
PHYSICAL SIZE: 100 mm High (4 inches) x 35 mm Nominal Diameter (1.38 inches)
17 mm (0.7 inch) Probe Diameter
MEASURING RANGE: 1.0 mm to 250 mm (0.040 inches to 9.999 inches)
DISPLAYED RESOLUTION: 0.01 up to 99.99, 0.1 above
(0.001 up to 9.999 inches, 0.01 above
WEIGHT: 150 grams (5.2 oz) with Battery
POWER SOURCE: One, 1.5V AA Alkaline Battery
OPERATING TEMPERATURE: -10 °C to +50 °C (14 °F to 122 °F)
PROBE SURFACE TEMPERATURE: -10 °C to +100 °C (14 °F to 212 °F)
KIT INCLUDESInstrument
Wrist Lanyard
One 1.5V AA Alkaline Battery
Hard Shell Carry Case
Integrated Transducer
Couplant
Operating Manual
Certificate of Calibration
T-MIKE EL
A corrosion monitoring gauge with B-Scan display & data logger
SPECIFICATIONS
PHYSICAL
Size: 2.5" wide x 6.0" long x 1.25" deep
Weight: 14 ounces with batteries.
Case: Environmentally sealed extruded aluminum with ABS end-caps.
Water resistant sealed touch pad keyboard
MATERIAL
Calibrates for various steels, aluminum, glass and plastics automatically.
POWER SUPPLY
Battery: 4 AA batteries, Alkaline or NiCad.
Continuous Operating Time 40 hours.
Typical Operating Time 300 hours.
TRANSDUCER
Standard is 0.250 inch diameter x 5.0 MHz dual element type attached to a 4 foot, environment protected coaxial cable with LEMO #00 quick disconnect connectors. Full range available.
DISPLAY
Dot matrix LCD, 64 by 128 pixels. Green LED backlight. B-Scan graphical representation of the material being measured. Measurements displayed in 0.5" high numerals. Coupling Check with icon indicator. Low battery indicator. English or Metric dimensions selectable.
OPERATION
Measuring Range: Typically 0.025 to 19.999 inches
(depending upon material measured and transducer selection).
Measuring Resolution: +/-0.001 inches or 0.01 mm.
Sound Velocity Range: From less than 0.999 inches per microsecond.
Surface Temperature Range: From 0 F. to 300 F with standard transducer. High temperature probes available.
High speed Scan Mode: Holds lowest reading as operator slides transducer over surface.
Red LED Alarm flashes when measurement falls below a preset value.
Selectable B-Scan Display is graphical representation of thickness over time.
Display can be set to show difference between measured thickness and a preset value.
Red LED indicator light flashes to indicate alarm state.
DATA-LOGGING
Selectable data-logging format options. Each file can be formatted either to single dimensional with sequential numeric identifiers or two dimensional with alpha numeric identifiers. 128 KB standard memory capacity. Stores over 40,000 readings. Bi-directional RS232 serial interface, selectable baud rate.
WARRANTY: 2 years from date of shipment: excluding transducer, cable and batteries.
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Precision Thickness Gauges for thin materials
PX-7 and PX-7DL SPECIFICATIONS
PHYSICAL:
Size: 2.5 in. wide x 4.5 in. long x 1.25 in. deep
(63.5W x 114.3L x 31.5D mm)
Weight: 10 oz. with batteries (284 g)
Weather resistant extruded aluminum housing with
nickel-plated end caps
9 Key sealed membrane Keypad
CONFIGURATION:
Hand-held module with micro-processor controls
Echo-to-Echo mode provides the ability to measure the thickness of materials without removing the paint or coating.
MATERIAL USES:
Calibrates for various steels, aluminum, glass and plastics
OPERATION:
Measuring Range in mild steel
Inches - 0.006 to 1.000 inch
Metric - 0.15 to 25.40 mm
Resolution - 0.0001 in or 0.001 mm
Material Velocity Range - 0.492 to 0.3937 inches/micro sec
(1,250 to 10,000 meters/sec.)
Temperature Range: -20 to +120F (-30 to +50C)
POWER SUPPLY:
(2) Size AA 1.5V alkaline or 1.2V NiCad batteries
Operating Time: Over 150 hours with alkaline, 100 hrs. with NiCad
Display flashes when battery level is low
Automatic shut off when batteries too low to operate properly
TRANSDUCER:
Configuration: Single-element ultrasonic delay line type
Various transducers for appropriate applications
Connection: Lemo #00 quick-disconnect
Cable: 4-foot, environment protected
DISPLAY:
LCD type, 4.5 digit, 1/2" high with selectable backlight ON/OFF/AUTO
Battery Check: Low battery indicator
Unit Systems: Selectable INCH or MM
Bar Graph indicates stability of reading
MEASURING MODES:
Interface-to-Echo, Echo-to-Echo (through paint) and Auto-Switchable
Four readings per second for single point measurements
Eight readings per second in Scan Mode - captures the minimum thickness
Single point calibration
FEATURES:
Differential Mode: Enter acceptable thickness value, unit will display +/- the difference
from that value
Alarm Mode: Enter a minimum and maximum acceptable thickness value.
If measurement falls outside the HI/LO limits, a Red LED will illuminate and
beeper will sound.
If measurements is between the HI/LO limits a Green LED will illuminate.
PX-7DL (Data Logging Model, same as above with added features below)
Data Output Port: RS232 output sends data to serial printer, PC or other external storage
device
Automatic Data Logger System, Up to 1,000 reading capacity (10 files of 100 readings
per file)
Complete with data acquisition software and interface cable
TRANSDUCERS (Recommended for use with these gauges)
15 MHz x 0.30" Diameter (7.6mm) for Metals and Plastics 0.006" to
1.000" in mild steel
20 MHz x 0.30" Diameter (7.6mm) for Metals and thin Plastics 0.006"
to 0.500" in mild steel
3/16" Diameter Cone Tip Delay available
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A Precision Gauge with A-Scan Signal Waveform and B-Scan Display
The PVX
Adjustable square wave pulser provides the flexibility necessary for both high resolution and penetration requirements.
Selectable viewing options provide the user with additional flexibility during operation: (RF waveform, +/- Rectified waveform, and Large Digits with Scan Bar.
Time based B-Scan feature displays a cross section of the test material. Displays the profile of the opposite surface of the material.
Adjustable resolution settings add to the PVX flexibility.
Ability to use a variety of single element transducers for specific applications: Standard Delay Line (acrylic and graphite tips for metals and thin plastics), Pencil Delay Line (tough access area on thin materials), and Contact transducers (variety of applications).
Hardware AGC gain control for multiple echo and thru-paint measurement.
Multiple calibration options: One Point, Two Point, or selection from a Material List.
16 factory setups and 48 user-defined setups. User defined setups can be edited for custom applications.
The PVX is equipped with an alpha-numeric data logger to provide increased versatility for those custom reporting needs.
The high speed scan feature speeds up the inspection process by making 32 measurements per second. Remove transducer from the test material and display the minimum measurement scanned.
Visual and audible alarm with hi and lo limit settings for specific application tolerances.
Auto find features locates the detection point(s) and adjusts the display settings to bring the waveform into view.
The PVX comes complete with Windows® PC software for data transfer to and from a PC
SPECIFICATIONS
Physical
Weight: 13.5 ounces (with batteries).
Size: 2.5 W x 6.5 H x 1.24 D inches (63.5 W x 165 H x 31.5 D mm).
Operating Temperature: -14° to 140°F (-10° to 60°C).
Keyboard: Membrane switch with twelve tactile keys.
Case: Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed).
Data Output: Bi-directional RS232 serial port. Windows® PC interface software.
Display: 1/8 in. VGA grayscale display (240 x 160 pixels). Viewable area 2.4 x 1.8 in. (62 x 45.7mm).
EL backlit (on/off/auto).
Ultrasonic
Measurement Modes:
Pulse-Echo (Precision General purpose).
Interface-Echo (Precision - Thick materials).
Echo-Echo (Precision - Thin materials & thru-paint).
Pulser: Square wave pulser with adjustable pulse width (spike, thin, wide).
Receiver: Manual or AGC gain control with 40dB range, depending on mode selected.
Timing: 40 MHz with ultra low power and 8 bit digitizer.
Power Source
Three 1.5V alkaline or 1.2V NiCad AA cells.
Typically operates for 150 hours on alkaline and 100 hours on NiCad (charger not included.)
Auto power off if idle 5 min.
Battery status meter.
Measuring
Range:
Interface-Echo Mode: Steel 0.05 1.0 in (1.27mm - 25.4mm). Plastics from .005in. (127mm).
Echo-Echo Mode: Steel .006in -.500in (.15mm - 12.7mm).
Pulse-Echo Contact: Steel .040in - 10.0in (1mm - 254mm). Plastics from .010in (.254mm).
Echo-Echo Contact: Steel thru-paint .100in - 3.0in (2.54mm - 76.2mm).
Resolution (selectable): +/- .001in (0.01 mm), or +/- .0001in - (.001mm).
Velocity Range: .0492 to .3936 in./ms 1250 to 9999 meters/sec
Single and Two point calibration option, or selection of basic material types.
Units: English & Metric
Display
Display Views:
A-Scan - Rectified +/- (half wave view) RF (full waveform view)
B-Scan - Time based cross section view. Display speed of 15 seconds per screen.
Large Digits Standard thickness view. Digit Height: 0.400 in (10mm).
Scan Bar Thickness - 6 readings per second. Viewable in B-Scan and Large Digit views.
Repeatability Bar Graph - Bar graph indicates stability of reading.
Data Logger
12,000 readings and waveforms (alpha numeric storage).
OBSTRUCT to indicate inaccessible locations.
Memory: 16 megabit non-volatile ram.
Transducer
Transducer Types: Single Element (1 to 20 MHz).
Locking quick disconnect “ 00” LEMO connector.
Standard 4 foot long integral cable.
Custom transducer and cable lengths available.
Features
Setups: 16 factory and 48 user-defined setups.
Gates: Single gate in pulse-echo mode.
Single gate with hold-off in interface-echo, echo-echo, and plastics mode. Adjustable threshold.
Multiple Measurement Modes: Selectable modes for use with a variety of applications.
Alarm Mode: Set hi and lo tolerances with audible beeper and visual LEDs.
Fast-Scan Mode: Takes 32 readings per second and displays the minimum reading found when the transducer is removed. Display continuously updates while scanning.
Certification
Factory calibration traceable to national standards.
Warranty
2 year limited
