Kaman KD-2306 - Manual (Page 3)

Kaman Precision Products PART NO: 860512-001
www.kamansensors.com Last Revised: 8/3/2009
3
Part 1 – KD-2306 Description
Kaman Precision Products’ Model KD-2306 is a non-contact, linear, analog displacement measuring
system. The system operates on a traditional inductive bridge circuit. This easy-to-use, versatile
system can be utilized for precision static and dynamic measurements of conductive targets.
The sensor coil makes up one or two legs (depending on single or dual coil sensor) of a balanced
bridge network. As the target changes position within the sensor field, the bridge network senses
impedance changes in the sensor coil. These changes are converted to an analog voltage or
current signal directly proportional to target displacement.
The KD-2306 system consists of two subassemblies: sensor with either integral or removable
cable, and signal conditioning electronics module in a DIN mounting enclosure.
The system is preconfigured at the factory for a particular sensor, cable length, target material,
and calibrated measuring range.
The KD-2306 is a lead-free, RoHS compliant, CE Marked design. To maintain the CE Mark, the
following precautions are necessary:
1) I/O cable length is limited to a maximum of 30 m (100 ft).
2) The electronics are supplied with a cover over the calibration potentiometers on the front
panel to protect the circuit from damage due to Electrostatic Discharge (ESD). Removal
of the cover makes the unit susceptible to ESD damage and it must be handled
accordingly.
3) The electronics power and I/O must be isolated from the AC Mains and not subject to
transient over-voltages. That is, it must be powered by a D.C. secondary circuit that is
reliably grounded, capacitively- filtered, with peak-to-peak ripple less than 10% of the
D.C. component.