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8 MAINTENANCE
8.1 CHECK FOR PERFORMANCE
It is recommended that calibration of the test hammer be checked regularly-usually after
2000 strokes. The James Calibration Anvil has been designed for just that purpose.
The calibration Anvil weighs approximately 35 lbs. (16 kg.) and it should be order
separately. The Anvil is used to check that the Impact energy level of the hammer.
This parameter is critical to correlate the rebound number with the compressive strength
of the concrete, the software sets the reading taken at the Anvil as 68.
8.2 CLEANING THE INSTRUMENT
The impact plunger and housing should be wiped using a dry and clean cloth after using
the instrument. Avoid the use of abrasives or solvents to clean the hammer and do not
use water to clean it.
9 SPECIFICATIONS
Digital Model W-D-2005, W-D-1705, W-D-1505
Display
2x16 trans-reflective
Operating temperature
32 to 122 ˚F (0 to 50 ˚C)
Battery
2’AA’
Construction All aluminum for rugged environments
Ap. Size 4” x 4” x 10” (100mm x 100mm x 270mm)
Weight
3.2lbs (1.4 kg)
Digital Model W-D-1205
Size 2.5”” x 1.9” x 1.2” (64mm x 49mm x 31mm)
Weight
up to 0.270 kg (0.6 lbs) with paper
Battery Internal Lithium ion with 1 yr
approximate life Charger 100V AC-240V AC 5V DC 3.0A
Operating temperature
32 to 122 ˚F (0 to 50 ˚C)
