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16
Conversion chart
Material
HL
Cast steel
300 ~
900
CWT steel
300 ~
840
Stainless steel
300 ~
800
Grey cast iron
360 ~
650
Nodular cast
400 ~
iron
660
Cast aluminium 174 ~
560
Copper zinc
200 ~
550
Copper alum.
300 ~
700
Wrought
200 ~
copper
690
17
Maintenance
17.1
Troubleshooting
Failure
Failure in starting
No measuring value
Value is inaccurate
17.2
Other maintenance
➢
For every 1000-2000 impact, use nylon brush to clean the pipe/tube and the impact body
of the impact device. Take the supporting ring and the impact body off, insert and twist nylon
brush counterclockwise to the bottom and pull back. Repeat for 5 times and re-install the
supporting ring and the impact body.
➢
Keep the impact body released after use.
➢
Using of any kind of lubricant is strictly prohibited in the impact device.
➢
When calibrating error is more than 2 HRC, it might be necessary to replace the test tip or
the impact body. Contact PCE Instruments.
➢
The impact body, the supporting ring and the loading sheath are excluded from the
warranty.
HRC
HRB
20.0 ~
38.4 ~ 99.5 80 ~ 647
68.0
20.4 ~
67.1
19.6 ~
46.5 ~
62.4
101.7
13.5 ~ 95.3
Cause
Battery empty
Probe wire open circuit
Calibration data loss
© PCE Instruments
16
HB
30D 2
10D 2
32.5 ~
99.5
85 ~ 655
93 ~ 334
131 ~
387
20 ~
159
40 ~
173
60 ~
290
45 ~
315
Solution
Recharge battery
Replace probe wire
Repeat calibration
HS
HV
80 ~ 940
80 ~ 898
80 ~ 802
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