MINI-MAX Bolt Tension Monitor THE

MINI-MAX Bolt Tension Monitor THE
DAKOTA ULTRASONICS
MINI-MAX
Bolt Tension Monitor
THE
Ultrasonically measures the elongation
produced by tightening a threaded
fastener.
▶ The FIRST cost-effective ultrasonic
solution available on the market.
▶ EFFECTIVELY monitor your bolts
during periodic shutdowns over
the service life of the fastener.
▶ VISUALLY compare the unloaded
to the loaded waveform.
▶ MEASUREMENT QUANTITIES
Time (nanoseconds), Elongation,
Load, Stress, and %Strain.
▶ DISPLAY OPTIONS — RF, Rectified,
Large Digits with Limits Bar.
▶ DISPLAY RESOLUTION
1/8 inch VGA 240 x 160 pixels.
▶ STORES 8000 readings and
waveforms in multiple groups.
▶ BUILT-IN linear regression or vector
for optimizing load measurements.
▶ AUTO SET feature automatically opti-
mizes detection and adjusts display.
▶ HI/LO ALARM tolerance limits work
in conjunction with the data port and
external pump shut-off device.
S O U N D
S O L UT I O N S
M I N I - M A X S P E C I F I C AT I O N S
Physical
Measuring
Transducer
Weight:
13.5 ounces (with batteries).
Range:
Size:
Width (2.5 in/63.5 mm)
Height (6.5 in/165 mm)
Depth (1.24 in/31.5 mm)
Quantities:
Transducer types:
Single element (1 MHz to 10 MHz & 1/8 to
1inch diameters). Magnetic & Non-Magnetic options.
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:
1/8in VGA grayscale display (240 x 160
pixels); viewable area 2.4 x 1.8in (62 x
45.7mm); EL backlit (on/off/auto invert).
From 1 to 96 inches (25.4 to 244 cm).
Time - Nanoseconds.
Elongation - Change in length (inches/millimeters).
Load - Force load applied (pounds KIP or
megapascals MPa).
Stress - Force for unit area stress applied
(inches per inch or millimeters per millimeter).
Resolution:
Features
+/- 0.00001 inch (0.0001 mm).
Velocity Range:
0.0492 to .3937 inches/microsecond (in/µs)
(1250 to 9,999 meters/sec).
Measurement Modes:
Pulse-Echo (flaws, pits).
Pulse-Echo w/Gate (fine adjust).
Select bolt material types from a preset or
custom list.
Units:
Pulser:
Square wave pulser with adjustable pulse
width (spike, thin, wide).
English & Metric / Farenheit & Centigrade.
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.
& Thickness Gauge
Custom transducers available for special
applications.
Temperature probe for automatic
temperature compensation.
Ultrasonic Specifications
Timing:
10 bit 250 MHz digitizer.
Locking quick disconnect
“00” LEMO connectors. Standard 10 foot
cable.
%Strain - Ratio of elongation to effective
length.
Fixed, Single, and Two-point zero calibration options.
Receiver:
Manual or AGC gain control with 40dB
range.
Glue-on transducers available for short
bolts with minimal elongations to eliminate
transducer placement errors.
Display
A-Scan: Rectified +/- (half wave
view), or RF (full waveform view).
Large Digits: Display and toggle between
nanoseconds, elongation, load, stress, and
strain; Digit Height: 0.400 inch (10mm).
Setups:
64 custom user defined setups; Factory setups can also be edited by the user.
Gate:
Gate used to fine adjust where the detection point occurs.
Alarm Limits:
Set Hi and Lo tolerances with audible
beeper, viewable scan bar, and visual LEDs.
Auto Set:
Locates the detection signal, optimizes
the gain setting, and adjusts the overall
display to show the waveform and detection point automatically.
Field Calibration:
Vector & linear regression.
Certification
Limits Bar (alarm limits): Set Hi & Lo alarm
limits for displaying an acceptable tolerance range.
Factory calibration traceable to NIST & MILSTD-45662A.
Repeatability Bar Graph: Bar graph indicates stability of measurement.
2 year limited
Warranty
Data Logger
Total of 8,000 bolts in multiple bolt groups.
Stores both waveform views, nanoseconds,
elongation, load, stress, strain and all gauge
settings for each reading.
Memory:
� ram.
16 megabit non-volatile
MADE IN THE USA
Distributed By:
DAKOTA ULTRASONICS
1500 Green Hills Road, #107
Scotts Valley, CA 95066
Ph: (831) 431-9722
Fax: (831) 431-9723
Website: www.dakotaultrasonics.com
Email: info@dakotaultrasonics.com
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