Hitachi EUP-C516 Instruction Manual page 17

b) Place the magnetic sensor attachment on the probe as shown in Fig.
10. Fit the projected part of the magnetic sensor attachment in the
index mark of the probe.
Fig. 10 How to attach the Magnetic sensor attachment
Never attach the magnetic sensor attachment to the probe in the
incorrect direction, otherwise it may result in false diagnosis.
CAUTION
-11-
Index mark
Fit the insertion
direction
Hole of the
Magnetic sensor
attachment
Q1E-EP0386