Although a "gear" profile is very often used as a "target" for speed-sensing applications, any kind of Òferrous-discontinuityÓ has the potential to act as a target. Other common targets include ferrous vanes, slotted/drilled shafts, magnetic vanes and ring magnets.

Key Features

• Suitable for a gear diametral pitch of up to 20, enabling accurate speed readings to be derived over fairly large air-gaps.
• Constant-amplitude output signals (with choice of supply-tracking or push pull output, TTL compatible,) simplifies electronic interfacing.
• Can also now be Non-oriented operation for ease and accuracy of the installation setting-up procedure.
• Bi-channel types for speed and direction sensing.

Control electronics should be configured to ensure that VS remains within the range 10V-30Vdc and that current source/drain on the signal line remains at less than 20mA.

Attempts to source more than 20mA from the sensor will result in a reduction of the voltage of the SIGNAL HI level followed by current limiting at <60mA when the SIGNAL output is connected via short circuit to RETURN.

Attempts to sink more than 20mA into the sensor will result in an increase in voltage of the SIGNAL LO level followed by current limiting at <60mA when the SIGNAL output is connected via short circuit to SUPPLY.

The above applies to EACH channel of the dual-channel versions.