 
PUNDIT
Ultrasonic Concrete Tester
Introduction
The Pundit is a fully portable instrument for assessing the the quality of concrete either in-situ
or precast, and complies with BS1881 : Part 203. It has been designed with
site testing particularly in mind and it is simple to operate with a high order
of accuracy and stability.
It works by measuring the time taken for ultrasonic pulses to pass through
the concrete from a hand held transmitter to a hand held receiver.
Voids and cracks in the concrete will lead to increases in time around the
crack or void.
Description
The instrument is fully portable, as it is fitted with rechargeable NiCad
batteries.
Two transducers are fitted to the instrument by 3.6 metre cables, one acts as
a trnsmitter for the ultrasonic pulses, and the second acts as the receiver.
Both transducers are held against the surface of the concrete using
a coupling agent to ensure good pulse transmittance.
The transducers can be used above and below a concrete member
when looking for voids.
For surface cracks or defects, both transducers are placed on the same surface, eg. on the
top face of a slab.
Specification:
The standard set comprise:
Control box 110 x 180 x 160mm
2 no. transducers 54kHz
2 no. connecting cables 3.6m long
calibration bar
coupling agent
Operation handbook
Complete with leather carrying case
total weight 3.2kg
Additional transducers are available: 37kHZ, 82kHz, 150kHz, and 200kHz
Power Supply NiCad rechargeable batteries 110-240v 50 - 60Hz
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