Dakota Ultrasonics DFX-6 Data sheet

DAKOTA ULTRASONICS

DFX Flaw Detector Series

DFX Flaw Detector Series

Isn’t performance what you need?

The DFX series ultrasonic flaw detectors are full

featured digital scopes designed to handle the sim-

plest to the most difficult applications. Whether the

application requires high penetration for materials

that are difficult to measure, or high resolution for

precision aerospace parts, the DFX series flaw

detectors are equipped with the necessary

features to do the job.

R Transflective Color TFT Display

R Broad & Narrow Band Amplifier

R Square Wave Pulser (Active EdgeTM)

R Extruded Aluminum Case(IP65)

R USB / RS232 / Video / Analog Outputs

R Trig Functions

R Curved Surface Correction

R DAC/TCG/AWS/DGS (Defect Sizing)

R Automatic Calibration

R Long Battery Life (Li-Ion Pack)

R Water Path Correction (638 only)

R Fast Setup Screen Facility

R Alphanumeric Text

R Help Facility

DFX series can go where you go,

to do the work you do, saving

you time and money, making

your inspections fast and

accurate.

SOUND SOLUTIONS

DFX 615 / 625 / 635 / 638 SPECIFICATIONS

D

A

K

O

T

A

U

L

T

R

A

S

O

N

I

C

S

SOUND SOLUTIONS

D

A

K

O

T

A

U

L

T

R

A

S

O

N

I

C

S

SOUND SOLUTIONS

Physical

Size : 9.25W x 7.13H x 4.0D in

(235W x 181H x 102D mm)

Weight: 7.5 lbs. (3,4 Kgs)
with Li-Ion cells

Extruded Aluminum

Case:

Display: Transflective TFT Color.

Display area: 4.39in x 3.29in

(111.4mm x 83.5mm) 320 x 240 pixels.
A-Scan area: 255 x 200 pixels (315 x 200
expanded), 8 color options and variable
brightness.

Temperature:

Operating –10° to +55°C or 14° to 131°F
–20° to +70°C or –4° to 158°F
(survivable)
Storage –40° to +75°C or –40° to 167°F

Environmental: Meets IP65 requirements.

Specifications

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

(μs).

Probe Zero : 0–999.999μs.

Velocity:

(1000–9999m/s).
(256–16000m/s.)

Test Range:

(5mm ) up to 0–400in (10,000mm) at steel
velocity. Variable in sequence, 0.4 in or 0.04
in (10mm or 1mm).
mm) up to 0 –800 in ( 20,000mm) at steel
velocity. Variable in 1, 2, 5 sequence or
continuously in 0.05 in (1mm) increments.
Also from 1 to 5000( μs).

Test Modes: Pulse-echo and transmit/
receive.

Gates:

over full range. Amplitude 0 –100%, 0.5%
steps. Visual & audible alarms. Single gate
positive trigger, and two gates positive and
negative triggering. Gate 2 has selectable

0.6 second delay on alarm.
fully independent gates with positive and
negative triggering for each gate.

Gate Expansion:

to width of Gate 1.

Gate Monitor Delay:

0.6 sec delay on gate 2 negative monitor.

Measurement Modes :

Signal Monitor—

Depth—Depth and amplitude of signal
in gate.

Echo Echo —Echo-Echo distance,
automatic gate 2 position.

Gate to Gate—
manual gate 2 position.
Independent gates.

Trig—Trigonometric display of beam
path, depth and sur face distance.
Calculation of skip depth and curve surface

615 & 625 0.0393– 0.3937in/μs

635 & 638 0.0100in/μs

615 & 625 0–0.2in

635 & 638 0 –0.05 in (1

615 & 625 Start & Width adjustable

635 & 638 Expands range

635 & 638 Selectable

635 & 638.

625 Echo-Echo distance,

635 & 638 Tw o

635 & 638

compensation, X-offset for transducer.

T-Min—Holds minimum thickness in depth
mode.

System Linearity : Vertical = 1% Full
Screen Height ( FSH ) Amplifier Accuracy
±0.1%dB. Horizontal ± 0.4% Full Screen
Width (FSW) .

Pulser Voltage:

amplitude, rise /fall time < 10ns into 50ohm.

635 & 638 100V–350V (450V 638 ) square

wave pulser. Pulse width from spike to
2000ns duration—rise/fall times < 5ns into
50 ohms.

Pulser Width:

625 30-250ns linked to filter band.
635 & 638 Adjustable in 2% of nominal

width, minimum 1ns maximum 40ns.

ActiveEdge: Unique active pulse control
for enhanced near surface resolution and
signal response. Replaces traditional
damping control.

615 & 625 Selectable 35 to 1000Hz

P.R.F.:

635 & 638 5000Hz), 5Hz steps.

(

Screen Update Rate: 50 or 60Hz.

Rectification: Full wave, positive or

negative half wave and unrectified RF.

615 & 625 0–400 in (10,000mm)

Delay:

635 & 638 0 –800in ( 20,00 0mm) at steel

velocity in 0.02 steps (0.05mm).

Gain: 0 to 110dB. Adjustable in 0.5, 2, 6, 14
and 20dB steps.

Frequency Bands:

MHz (-6dB).
at 1MHz, 2MHz, 5MHz, & broadband 1.5–

635 & 638 6 narrow bands centered

15MHz.
at 0.5, 1, 2.25, 5, 10 & 15 MHz. Broad band
at 2 to 22 MHz (- 6dB ) and 1 to 35 MHz
(-20dB ).

Vertical Linearit y: 1% full screen height.

Amplifier Linearit y: +/- 0.1 dB.

Horizontal Linearity : +/- 0.4% full screen

width (FSW).

615 & 625 50% suppressive reject.

Reject:

LED warning when selected.
80% linear reject.

615 & 625 200 volt peak

615 fixed at 100ns.

615 4Broadband 1–10

625 4 Narrow Bands centered

635 & 638

Memory

Thickness Logging : Storage for 8000

readings stored in Block /Location/Number
coding or alpha-numeric pre-programmed
work sheets. Transferable to Excel using
optional PC software.

Panel Memory: 100 storage locations for
calibration settings.

A-Scan Memory: 800 waveforms.

Features

Wave Smoothing: Produces a smooth

signal envelope.

AGC: Automatic Gain Control sets selected
echo to a user defined level (10– 90%).

DAC: Up to 10 points may be entered
and used to digitally draw a DAC cur ve.
Reference -2, -6, -10, -12, -14 dB curves
can be selected for JIS, ASME and
EN1714 codes.

AWS: Automatic defect sizing in
accordance with AWS D1.1 Structural
Welding Code.

API: Automatic defect sizing in accordance
with API 5UE.

AVG/ DGS : Automatic defect sizing using
probe data. 10 probe data sets can be
stored.

625, 6 35 & 638 Time corrected

TCG:

gain. 40 dB dynamic range, 30 dB per
microsecond, up to 10 points for curve
definition.

Auto-Cal: Provides Automatic calibration
with two echoes.

Reference Waveform: Recalled waveform
can be shown in a different color to live
waveform for direct comparision.

Display Freeze: Hold current waveform
on screen.

Peak Memory: For echodynamic pattern
determination.

Online Help: Instant operator guidance on
operation accessed from direct key.

Language S upport: Six user selectable
languages from : English, German, French,
Spanish, Dutch, Italian, Russian, Polish,
Czech, Finnish & Hungarian. Others
available on request.

Power Source

Battery: Lithium Ion battery pack 14.4V,

5.0 Amp hrs. Minimum 11 hours use, typical
15 hours, indication of batter y charge.
Recharge time 4 hours.

Charger: 100–240 VAC, 50–60Hz.

Connections

USB: For connection to PC, keyboard

and printer.

Outputs: Serial Interface, composite video
(NTSC & PAL), analog output for amplitude
and distance updated at PRF rate.
Transmitter sync output.

Transducer Connector s: available
with BNC or LEMO 1 connectors
(factory option).

Additional 638 Features

Interface Trigger: Interface gate locks

to surface echo and eliminates water path
variation.

High Power Pulser: 450 volt boost.

Warranty

2 year limited

Distributed by:

A SONATEST NDE GROUP COMPANY

DAKOTA ULTRASONICS

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

TELEPHONE: [phone]
FAX: [phone]
WEB SITE: www.dakotaultrasonics.com
E-MAIL: [e-mail]

9/08 (08-100/5M)