Requirements For Verification Officer Qualification, Requirements For Safety And Verification Conditions - NOVOTEST UD3701 Operation Manual

Operation manual
Ultrasonic Flaw Detector NOVOTEST UD3701
Table 3.2 – Verifying instruments and their main metrological and technical characteristics
Verifying instruments
Oscillograph Tektronix TDS 1002
Generator Tektronix AFG320
Ultrasonic tester МХ01-UZT-1
Set of thickness standard blocks for US
testing KUSOT-180 (40Х13)
Set of industry standard blocks KMD 4
Standard calibration block SО-1 from
the set KOU-2 TU 25-0618847-78
Note:
1 Other verifying instruments are available, which allow to define metrological characteristics
within maximum permissible accuracy.
2 Verifying instruments, which are applied, should include valid Verification certificates.
3.2.2 Requirements for verification officer qualification, requirements for safety and
verification conditions
For verification are only allowed personnel, which have valid certificates of verification officer,
are certified according to established procedure, get through a safety precautions training, have read
and understand this operation manual and operation instructions for verifying instruments.
While making verification, electrical safety precautions are to be kept up in accordance with
operation instructions for verifying instruments.
All the mains-operated devices should be electrically grounded.
Verification process does not have relation to harmful working conditions and does not damage
the environment.
Verification of the device is carried out under climatic conditions:
 temperature from 15 to 28
 relative humidity 65 ± 15 %;
 pressure 101 ± 2 kPa.
 AC mains supply voltage: from 187 to 242 V and frequency 50 ±1 Hz;
 maximum harmonic distortions of AC mains – not more 5%.
Before verification (calibration) are carrying out, flaw detector should stay in above conditions at
least 8 hours.
Before verification (calibration) starts, verifying instruments and flaw detector are to prepared in
accordance with their operation instructions.
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Main metrological and technical characteristics
Frequency range: from 0 Hz toо 60 МHz;
Amplitude of testing signals with divider:
1:10 to 500 V;
Accuracy for amplitude measurement: ± 5 %
Frequency range: from 0,01 Hz to 16 MHz;
Amplitude: from 50 mV to 10 V;
Phase angle: from 0 to 360 °
Radio-impulse frequency, MHz: 0,6; 1,2; 1,8; 2,5; 5,0; 10,0;
Range of amplitude attenuation: from 0 to 101, step 0,1 dB;
Radio-impulse delay: from 0,5 to 6500 µs.
Range of effective thickness (depth) for 40Х13 steel when
velocity of UT waves propagation is 6050 ± 30 m/s:
from 0,2 tо 300,0 mm,
Δ = ± 0,7 % for range 0,2 – 5,0 mm,
Δ = ± 0,4 % for range 6,0 – 10,0 mm,
Δ = ± 0,3 % for range 12,0 – 300,0 mm.
Reflector diameter, mm: from 1,0 to 3,2;
Reflector depth, mm: from 1,0 to 180
Reflector diameter, mm: 2,0;
Reflector depth, mm: from 5,0 to 60,0
0
С;