Dakota Ultrasonics Mini-Max Specifications v2

D A K O T A U L T R A S O N I C S

THE

THE

Ultrasonically measures the
elongation produced by
tightening a threaded
fastener.

MINI-MAX

MINI-MAX

Bolt Tension Monitor

Bolt Tension Monitor

v2.0

v2.0

Highlights:

HIghlights:

▶ Precision TCXO timing.

▶ Sunlight readable LCD display

(240 x 160 pixels) .

▶ Adjustable digitizer - Resolution.

▶ Pulse-Echo measurement mode.

▶ Temperature compensation.

▶ Quantities - Elongation, Load, Stress,

Strain and Time (nanoseconds).
to the loaded waveform.

▶ Auto Correlation - transducer

placement.

▶ Auto Calibration.

▶ USB-C connectivity.

▶ 4GB internal SD memory.

▶ PC & OSX reporting software.

▶ 2 year warranty.

S O U N D S O L U T I O N S

MINI-MAX SPECIFICATIONS

Physical

Weight: 13.5 ounces (with batteries).

Size: 2.5W x 6.5H x 1.24D in (63.5 x 165 x

31.5 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).

Environmental: Meets IP65 requirements.

Connections

USB: Direct USB-C 1.1 PC connectivity.

Windows & OSX interface software.

Line Power: USB-C to PC or AC adaptor.

Temperature Sensor: 5 pin Lemo 1.

Transducer Connector: Lemo 00.

Memory

Log Format: Grid (Alpha Numeric).

Capacity: 4GB internal SD memory.

Screen Capture: Tagged interface le (.tif )

capture for quick documentation.

Custom Setups: 64 user congurations.

Power Source

Line Power: USB to PC or power outlet.

Batteries: Three AA cells.

Alkaline 35 hrs, Nicad 10 hrs, NI-MH 35 hrs.
Auto power o after 5 minutes idle.
Battery status icon.

Transducers

Transducer types: Single element - 1

MHz to 10 MHz frequencies, and 1/8” to 1”
diameters.

Glue-On: Available for short bolts with
minimal/short elongations to eliminate
transducer placement errors.

Connectors: Microdot, Lemo 00, or BNC
options depending on the transducer
model selected.

Custom transducers: Available for special
applications.

Temperature probe: Automatic tempera­ture compensation.

Electronics

Display: 1/8in VGA grayscale display (240

x 160 pixels); viewable area 2.4 x 1.8in (62 x

45.7mm); EL backlit (on/o/auto invert).

Screen Refresh Rate: 30 Hz.

Timing: Precision TCXO timing with

single shot 100 MHz 8 bit ultra low power
digitizer.

Pulser Type: Square Wave.

Pulser Voltage: Selectable 100, 150 and

200 volts.

Pulse Width: Selectable options Spike,
Thin, and Wide. 80 to 400 ns.

Damping: 50, 75, 100, 300, 600, & 1500
ohms.

Frequency Band: Broadband 1.8 - 19 MHz
(-3dB) lter.

Horizontal Linearity: +/- 0.4% FSW.

Vertical Linearity: +/- 1% FSH.

Amplier Linearity: +/- 1 dB.

Amplitude Measurement: 0 to 100% FSH,

with 1% resolution.

Delay: 0 - 999.9 in (25,400 mm) at steel
velocity.

Measurement Gate: One gate with au­dible and visual alarm. Amplitude 5-95%,
1% steps.

Features

Setups: 64 custom user dened setups;

factory setups can also be edited by the
user.

Auto Set: Automates the detection, scope,
and display setting process for each indi­vidual bolt.

Alarm Limits: Adjustable Hi/Low toler­ances with visual LED’s and audible beeper.

Field Calibration: Vector or Regression
correction curve for increased accuracy us­ing Load & Stress.

Display Views

A-Scan: Rectied +/- (half wave view), or RF

(full waveform view).

Large Digits: Digital display only.

Alarm Limits Bar: Hi & Lo alarm limits for

displaying an acceptable tolerance range.

Measuring

Units: English (in), Metric (mm), or Time

(μs). Farenheit or Centigrade.

Velocity: 0.0492 to .5510 in/μs (1250–
13995 m/s).

Measurement Modes: Pulse-Echo (P-E).

Measurement Range: 1 in to 50 ft (25.4

mm to 15.24 M), dependent on material
type and consistency.

Detection: Zero Crossing.

Resolution: +/- 0.00001 in (0.0001 mm).

Calibration: Automatic, Fixed, Single or

Two-Point zero calibration options.

Quanties:

Time - Nanoseconds.

Elongation - Change in length (inches/mil-

limeters).

Load - Force load applied (pounds KIP, or
megapascals MPa).

Stress - Force for unit area stress applied
(inches per inch or millimeters per millime­ter).

%Strain - Ratio of elongation to eective
length.

Bolt Materials: Select types from a preset
or custom list.

Repeatability Bar Graph: Bar graph indi­cates stability of measurement.

Certication

Factory calibration traceable to NIST & MIL­STD-45662A.

Warranty

2 year limited

Distributed By:

MADE IN THE USA

DAKOTA ULTRASONICS

1500 Green Hills Road, #107
Scotts Valley, CA 95066

Ph: [phone]
Fax: [phone]
Website: www.dakotaultrasonics.com
Email: [e-mail]