NDTnet 1998 May, Vol.3 No.5
SPECIAL MAY '98 EXHIBITION
Ultrasonic Flaw Detectors
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A Survey of Flaw Detector Specifications
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A Comparison Sheet of Flaw Detector Specifications

The sheet presented herein compares instruments of Karl Deutsch, Panametrics and Krautkramer.
When we tried to bring specifications of different manufactures together on one sheet we ran into the problem of how to handle the different definitions or lack of information of some brochures. We do not want to blame those companies; there exist much worse brochures from many other companies we haven't mentioned here. The situation clearly shows how important the new European Standard EN 126681-1 Instruments is.

The five instruments on display are representative for general purpose flaw detection only. However, the term 'general purpose' may have room for a range of instruments, as is reflected by the three instruments from Krautkramer (USM 20 - USN52 - USD 15 B). All companies offer also other suitable instruments for low and high-end applications.

The presented specifications of each instrument information were assembled by using the current brochures and data sheets of each company. The absence of quoted values in this presentation does not necessarily mean that the instrument does not provide those functions. The presentation is not intended as a comprehensive purchase guide. For more detailed information about any instrument, contact the manufacturer.

Booth => Karl Deutsch Panametrics Krautkramer Krautkramer Krautkramer
Note: The absence of quoted values in this presentation does not necessarily mean that the instrument does not provide those functions.

Introduction =>

Product Name Echograph 1085 EPOCH III [1] USM 20 USN 52 [1] USD 15 B [1]
Display type electroluminescent [1] electroluminescent LCD with switchable backlight electroluminescent electroluminescent
Size , mm (inch)
A-scan Size , mm
A -scan Resolution , pixel
Update Rate , Hz 		102 x 78
96 x 76
320 x 256
50 Hz [2] 		67 x 60 (2.625 x 2.375) [2]
-
320 x 256
60 Hz 		96 x 76 (3.8 x 3)
96 x 66
320 x 220
- 		146 x 67
130 x 53
-
- 		96 x 76 (3.8 x 3) [2]
-
320 x 256
-
Features Storage: normal, maximum, average, echo filtering, frozen A-scan Peak Memory: Selectable "filled" or "outlined" waveform trace. Display: Simultaneously displays live wafeform and peak envelope. A-scan storage: statically (A-scan freez) A Scan memory: Static (freez) or dynamic (maximum amplitude, echo dynamic). Further amplitude display features are available. Display freeze (A-Scan): Static, dynamic, averaged (8 shots)
Note: [1] Analog Model 1055 with CRT display. [2] Image regeneration 25 - 50 Hz [1] Economical version: EPOCH III. [2] Called "Graticule"
[1] Economical version: USN 50 [1] USD 15 Family. [2]USD 15 SX: 192 x 96
Range
Velocity , m/s
Pulse Shift , µs
Probe delay , µs 		5 - 5000
1000 - 9999
0 - 6500
- 		4 - 5000 mm
635 - 15240 m/s
0 - 350
- 		0 - 1440
1000 - 15000
-10 - 1300
0 - 99.99 		5 - 5000*
-
-20 - 735* (-20 - 91)*
0 - 785 		2.5 - 9999
500 - 15000
25 - 9999
0 - 999.99
Pulser type , shape
Voltage , Volt
Capacity , pf
Damping , Ohm
Rise time , ns
Output Imp , Ohm
PRF , Hz
PRF , setting 		-
70*, 350*
-
10, 50, 75, 220, oo
5, 12
< 30
approx. 330
ext, intern 		spike
100, 200, 400
-
50, 150, 400
-
-
Low or High
- 		-
-
1000, 220
50, 500
-
-
240
- 		-
-
-
50, 75, 150, 1000 [1]
-
-
56 - 905
- 		spike [1]
max. 400
220,1000, 2000
33, 50, 75, 500 [1]
-
-
50 - 4000 [1]
ext, auto, manual
Receiver
Frequency range , MHz
Narrow-band ranges , MHz
Broadband ranges , MHz
Gain , dB
Steps , dB
Max. input sensitivity
Dynamic range , dB
Echo presentation

Suppression
-
as option on request
0.5 - 6, 3.5 - 40
102
0.1

200µVpo for full screen hight
> 96 dB
fullwave, pos. halfewave,
neg. halvewave, RF
0 - 99
0.5 - 15
-
-
-
-

-
-
-

-
0,3 - 20
0.5 - 12
-
100
0.5, 1, 2, 6,
and programmable
-
-
fullwave

0 - 80
-
0.25 - 4.9, 2.3 - 10.8 *
0.4 - 10.2, 1.7 - 8.2 *
110
0.5, 1, 2, 6, 24

-
-
fullwave, pos. halfewave,
neg. halvewave, RF
0 - 80
0,3 - 20 [1]
0.5, 1, 2, 4, 10, 15
3.7 - 20, 4 MHz (DIN)
110
0.5, 1, 2, 6,
and programmable
-
-
fullwave, pos. halfewave,
neg. halvewave, RF
0 - 89
DAC
Dynamic , dB
Slope , dB/µs 		max. 11
-
- 		-
-
- 		-
-
- 		max. 9 *
40 *
3 * 		- [1]
-
-
Note Called "variable attenuation" Called "reject" (in 1% increments)
* An economic type "USN 50" is available which delivers less receiver options and no DAC feature.
Monitor , Gates
Logic

Display
Duration
Noise suppression , count 		2*
coincidence,
anticoincidence

2.5 ms
0 - 255 		-

-
-
- 		-


-
-
-
- 		1
coincidence,
anticoincidence
LED
-
- 		2 [1]
coincidence,
anticoincidence
LED and acoustic
short and continues
2 - 16
Sound path meas.
Resolution , mm (inch) or ns
Trigger
 yes
0,1 mm (0.01)
-
 yes
0,1 mm (0.01)
Peak or leading edge
 yes
0,1 or 4 ns
flank
 yes
-
flank, peak
 yes
0,1 or 4 ns
flank, peak, two zero
crossing at RF signals
Modes Sound path, reduced projection distance, depth single echo thickness readings or soundpath, surface, and depth display for angle beam testing. Sound path Sound path, sound path differences gates B-A. Reduced projection distance, depth for angle beam testing. Sound path, sound path differences gates B-A
Units of Meas. mm, inch mm, inch mm, inch mm, inch mm, inch
Data memory
Data logger


 13 (16 settings)
1000*


 -
1000 (3000)*
(or 50 (130)*
waveforms with
calibration data) 		-
-


 30 (70)
2500 (in 99 sets)


 50 [1]
-


Outputs
RS 232 (PC or Printer)
RF
Gates
Amplitude for each gate
Analog TOF for each gate
Parallel Data
Video
yes
yes (100% = 1Vss at 50 Ohm
yes (100 Ohm driver)
yes
-
-
BAS output
yes
-
-
-
-
-
-
yes (only data output)
-
-
-
-
-
-
yes
-
yes (TTL)
yes
yes
-
-
yes
yes
yes
yes
yes
yes for USD 15 X
yes for USD 15 X
Inputs
Extern Trigger
Test data release
Alarm Reset
A-scan freez
Load data set

yes
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
yes
yes
yes
yes
yes
-
Languages options: F, I, E, S, CZ, P, ROM, PL German, English, French selectable by keypad. Other can be installed by the operator German, English, French, Spanish, Italian, later options: e.g. Russian, Japanese, Chinese, Arabian German, English, French, Spanish, Italian, Portuguese German, English, French, Spanish, Italian, Portuguese
Power Supply
Battery type

Operating Time , max. h
Input Voltage , V (AC)
Operating Temperature , °C
Storage Temperature , °C
Humidity 		external
12 AIMn or NiCd

8
85 - 264
0 - 50
-40 to +85
0 - 95% 		external
Lead-lead dioxide,
C-Size Alkaline Option
8
85 - 265
-20 to +50
-40 to +70
- 		external
4 NiCd or NiMH

-
90 - 265
0 to +45
-
- 		external
6 AIMn or NiCd

5
-
-5 to +55
-
- 		integrated charger
12 AIMn or NiCd

6
85 - 264
-5 to +55
-
-
Dimensions , (H x W x D) mm
Weight , kg 		130 x 280 x 200
3.7 		289 x 177 x 95 *
- 		-
1.6 		146 x 248 x 133
2.7 		138 x 238 x 319
7.2
Not satisfied?
A Survey of Flaw Detector Specifications
Please fill out this survey -
it could just make your next
instrument purchase a lot easier!
NDTnet 1998 May, Vol.3 No.5
SPECIAL MAY '98 EXHIBITION
Ultrasonic Flaw Detectors
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