An ultrasonic low-frequency tester for in-situ quality assessment of concrete anchors, solid rebars and reinforcement.



A1221 ANCHOR is an ultrasonic instrument for in-situ evaluation of embedded metallic elements by means of low-frequency ultrasonic waves.

The main application field of A1221 ANCHOR is the non-destructive testing of anchor bolts and similar structural elements.

Following evaluations can be performed by placing ultrasonic transducer on the free outer end of the bolt:

  • Detection of anchor breaks
  • Residual length/fraction assessment
  • Adhesion quality assessment

Application features:

Assessable bolt / rebar diameter 20-40 millimeters (0.8-1,6 inch)
Not grouted assessment length up to 8 meters (26.3 feet)
Minimal assessment length 0.3 meter (9.8 feet)
Assessable grouting depth in concrete: up to 1 meter (3.3 feet)
Assessable grouting depth in rock: up to 4 meters (13.1 feet)
Parameter Value
Operating frequency range, kHz 25-250
Maximal data acquisition length, μs 4000
Assessment length,m 0.5-3
Assessment length of embedded rods, m up to 1
Assessable rod diameter range, mm 20-40
Material velocity range, m/s 500-15000
Transmitter output voltage, V ±20, ±100, ±200
Transmitter pulse form Bipolar meander, 0.5÷5.0 periods
Pulse repetition rate, Hz 1-45
Gain setup range, dB 0-100, step 1
Number of the programmable points of DAC function 24
Dynamic range of DAC function, dB 30
Power supply Built-in battery
Operation time, h 14
Battery charging time, h 3
Display type TFT (640 х 480)
Electronic unit dimensions, mm 260×156×43
Electronic unit weight, kg 0.8
Operational conditions
Operating temperature range, ºC from -20 to +45
Relative air humidity at +35°С, %, max 95