32
HK-D_HK-DB-BA-e-2020
Device cannot be
switched on
Batteries are inserted
upside down, positive /
negative pole
Insert batteries the right
way round
No
measured
value visible
No
connection
with
sensor cable
Sensor cable defective,
replace
Measured value
too inaccurate
Calibration data was lost
Recalibrate
9
Service and maintenance
1. Maintenance of the rebound sensors
After the rebound sensor has been used approximately 1000 to 2000 times, the nylon
brush should be used to clean the guide tube and rebound body. When cleaning the
guide tube, first unscrew the stabilizing ring, then remove the rebound body, turn the
nylon brush clockwise to the bottom of the guide tube and pull it out again. This is
repeated 5 times, after which the rebound body is reinserted and the stabilizing ring is
screwed back on.
- The rebound device should be released (unlocked) after use.
- Any kind of liquid inside the rebound body is strictly prohibited.
2. Simple maintenance measures
If the Rockwell hardness test block is used for testing and the error factor is greater
than 2 HRC, this may be due to the worn tip of the rebound sensor. Consideration
should be given to replacing this spherical tip.
If any other abnormal phenomena occur with the test unit, do not unscrew or modify
any of the permanently installed parts yourself. The device should be sent to us by
telephone so that it can be checked by our service department.
10
Notes on transport and storage conditions
- The device should be kept free of vibrations, magnetic fields, corrosive agents,
moisture and dust. The device should be stored at normal ambient temperature.
11
Parts subject to wear and tear, which are not covered by the
scope of warranty
- Sheathing of the display unit
- Control buttons
- Rebound sensor
- Stabilisation ring
- Rebound sensor cable
Summary of Contents for HK-D
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