Technical data

c. STEP 3 Test Piece

• Ensure the operator’s hands and arms are free of metallic

objects (watches, rings etc), and that no other metallic objects

are near the coil. The orientation of the Test Piece during the

test is dependent on which Sensitivity Endcap is connected to

the detector.

NOTE

Maximum sensitivity is only available 30 seconds after the Threshold

Tone commences. Do not test the detector with the Test Piece until

30 seconds after the Threshold Tone begins.

• Black Sensitivity Endcap:

Hold the Test Piece above the middle of the coil with the

rounded end (containing metallic target) AWAY from the coil.

Move the Test Piece towards the centre of the coil until it lightly

touches the surface then move it sideways off the coil (the Test

Piece should be moved slowly and smoothly during this

procedure). A faint but clear response (change in Threshold

Tone volume and pitch) should be heard indicating the sensitivity

of the detector is correct.

P0647-A

Figure 20: Test Piece Procedure