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Special Offer!

Now offering 25% on any new W-D-2000 Digital Rebound Hammer with the
trade-in of any old, new, or abused rebound hammer.
Get in on this offer before it is too late, offer valid until
July 31, 2008.

  Concrete Rebound Hammers » Frequently Asked Questions
Concrete Rebound Hammers REQUEST FOR QUOTE
  Digital and manual schmidt concrete test hammers for quick and easy determination of concrete compressive strength. Available in 'N' and 'L' type.

Frequently Asked Questions

Q. Unit gives low or high readings
A. Unscrew cap on top of unit, there is a screw in the cap. Adjust the screw up or down and check reading against test anvil.
   
Q. Unit will not fire when depressed
A. Make sure cap screw is in the proper position. Check to make sure trigger spring is present. Check for plunger spring in tip.
   
Q. My first reading was very low, but the readings after that are consistent
A. Disengage hammer and let it sit before taking your first reading.
   
Q. How many readings should I take in one particular area?
A. You should take 10 readings, if you have any large deviation, exclude them and take additional readings.

 

Concrete Rebound Hammers

Digital Model W-D-2000
Manual Model W-M-350
Manual Model W-M-250
Calibration Anvil
Model W-C-7312
Specifications
F.A.Q.
Operating Instructions

Features & Benefits:
Digital Model W-D-2000: Automatic calculation of the mean rebound number and compressive strength: Digital display with built-in printer, PC connection and software for downloading.
Manual Model W-M-350: Records every test on chart paper. Easy to read and use.
Manual Model W-M-250: Easy to use manual calculation of the mean rebound number.
All James Test Hammers conform to:
ASTM C-805
USA
BS-1881-202
Grt. Brit.
ISO/DIS 8045
Intl.
EN 12 504-2
Europe
ENV 206
Europe
NFP 18-417
France
B 15-225
Belgium
JGJ/T 23-2001
China
JJG 817-1993
China

Downloadable Files:
Complete Data Sheets
 

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Phone 773.463.6565 | Toll-Free 800.426.6500 | Fax 773.463.0009
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