Kaman KD-2306 User Manual Download Page 2

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www.kamansensors.com

PART NO: 860512-001

Last Revised: 11/26/2014

Table of Contents

Part 1 – KD-2306 Description .................................................................. 3

Part 2 - Connecting the KD-2306 ............................................................ 4

Part 3 – KD-2306 Outputs ....................................................................... 5

3.1 Single Ended Voltage Output: ....................................................... 5

3.2 Differential Voltage Output: ............................................................ 6

3.3 4-20 mA Current Output: ............................................................... 7

Part 4 - Calibrating the KD-2306 ............................................................. 7

4.1 Calibration Controls ....................................................................... 7

4.1.1 MIN (Zero) Controls ................................................................... 8

4.1.2 MID (Gain) Controls .................................................................... 8

4.1.3 MAX (Linearity) Controls ............................................................. 9

4.2 Calibration Methods ....................................................................... 9

4.3 Calibration Procedures ................................................................ 10

4.3.1 Full Scale Calibration Procedure (Voltage) ............................... 10

4.3.2 Full Scale Calibration Procedure (Current) ............................... 11

4.3.3 Bipolar Voltage Output Calibration Procedure .......................... 12

4.3.4 Alternate Bipolar Voltage Output Calibration ............................ 13

4.3.5 High Accuracy Band Voltage Calibration .................................. 14

Part 5 - Synchronizing Multiple KD-2306 Systems ................................ 16

Part 6 - System Modifications ................................................................ 17

6.1 Temperature Compensation ........................................................ 17

6.2 Bridge Card .................................................................................. 17

6.3 Target Material ............................................................................. 18

6.4 Sensor Cable Length ................................................................... 18

Appendix A – Standard Sensor Ranges & Offsets ................................ 19

Summary of Contents for KD-2306

Page 1: ...ntact Displacement Measuring System User s Manual This apparatus when installed and operated per the manufacturer s recommendations conforms with the protection requirements of EC Council Directive 89 336 EEC on the approximation of the laws of the member states relating to Electromagnetic Compatibility Refer to the KD 2306 Declaration of Conformity or contact Kaman Precision Products for details ...

Page 2: ...ols 8 4 1 3 MAX Linearity Controls 9 4 2 Calibration Methods 9 4 3 Calibration Procedures 10 4 3 1 Full Scale Calibration Procedure Voltage 10 4 3 2 Full Scale Calibration Procedure Current 11 4 3 3 Bipolar Voltage Output Calibration Procedure 12 4 3 4 Alternate Bipolar Voltage Output Calibration 13 4 3 5 High Accuracy Band Voltage Calibration 14 Part 5 Synchronizing Multiple KD 2306 Systems 16 Pa...

Page 3: ... 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 t...

Page 4: ...ent sections of this manual Input power is connected to terminals 11 and 12 as shown A good quality linear or switching supply with an output of 15 to 30 VDC and 150 mA is recommended for best lowest noise performance Consult the Accessories Data Sheet for recommended power supply options 1 Voltage Output 2 4 20 mA Output High 3 Ground 4 Synchronization In 5 Voltage Output 6 4 20 mA Output Low 7 G...

Page 5: ...f 10 VDC Unless otherwise specified the system will be factory calibrated for 0 10 VDC over the full measuring range of the sensor Other typical outputs are 0 5 and 5 VDC The KD 2306 output may also be adjusted to provide a specific sensitivity such as 1 V mm 3 1 Single Ended Voltage Output Unless otherwise specified this output will be calibrated for 0 10 VDC output at the factory For single ende...

Page 6: ...d signal for reduction of common mode interference noise picked up equally by both leads It can also eliminate a common ground between the KD 2306 and remote equipment in order to reduce ground loops It has a maximum span of 10 VDC For differential voltage output connect V to terminal 1 and V to terminal 5 as shown V out Gnd V out KAMAN SENSOR COARSE FINE MAX MID MIN 1 2 3 5 4 6 7 8 9 10 11 13 12 ...

Page 7: ...ill not be achieved Part 4 Calibrating the KD 2306 4 1 Calibration Controls There are 6 controls to calibrate the KD 2306 all located on the front panel and accessible by the narrow end of an adjustment tool The controls are Coarse Fine Linearity Coarse Fine Gain Coarse Fine Zero Coarse controls will give you a large change in adjustment Fine controls will give you a smaller change in output and a...

Page 8: ...nd gain This feature is useful in applications where you need a deviation from a standard or when a bipolar output is required The Zero controls can be utilized for final positioning of the output after installing the sensor in it a mechanical fixture In general limit the amount of adjustment to tens of milli volts of output adjustment to avoid altering the factory calibration 4 1 2 MID Gain Contr...

Page 9: ... Out Output from 4 mA to 20 mA Bipolar Negative output for first half of range positive output for second half High Accuracy Band Increased linearity by using only part of the full scale Measuring range Voltage or Current Depending on the application select one of three procedures outlined above to calibrate a system Before calibration we recommend that you become familiar with the following infor...

Page 10: ...d range 4 Select the calibration procedure that is best for the application Select the proper offset distance full scale range and desired voltage output Calculate the midscale range and output 4 3 1 Full Scale Calibration Procedure Voltage Full scale calibration produces an output voltage that varies from 0 Vdc when the target is closest to the sensor plus offset to some maximum positive voltage ...

Page 11: ...ge level then continue past the desired reading by an amount equal to the first difference you noted This technique is called 100 oversetting and is used to reduce the number of iterations needed to calibrate the system For example if the output reads 9 5 volts and the desired reading is 10 0 adjust the MAX Linearity controls until the output reads 10 5 7 Repeat Steps 4 through 6 as many times as ...

Page 12: ...utput due to lack of headroom above 20 mA 7 Repeat Steps 4 through 6 as many times as necessary until the desired output at each point is obtained without additional adjustment 4 3 3 Bipolar Voltage Output Calibration Procedure When you use this calibration procedure output voltage will range from a negative voltage for the first half of your measuring range to a positive output for the second hal...

Page 13: ...u noted This technique is called 100 oversetting and is used to reduce the number of iterations needed to calibrate the system 7 Repeat Steps 4 through 6 as many times as necessary until the desired output voltage at each point obtained without additional adjustment 4 3 4 Alternate Bipolar Voltage Output Calibration You may not be able to achieve maximum sensitivity using this technique This metho...

Page 14: ...n 10 and 30 mils While decreasing the linear measuring range of your system it will improve system performance conversely increasing measuring range will degrade performance Depending upon your measurement objectives either can be used As you perform a high accuracy band calibration keep in mind that the smaller the calibrated span the more interactive the controls will become More interaction mea...

Page 15: ... target so that it is at the maximum displacement of the span relative to the sensor Note the difference between the actual reading and the desired reading Adjust the MAX Linearity controls until the output reads the desired voltage level then continue past the desired reading by an amount equal to the first difference you noted 7 Repeat Steps 3 through 6 as many times as necessary until you reach...

Page 16: ...aster Subsequent control units become slaves Connect terminal 15 of the master to terminal 4 of the first slave Connect any ground terminal of the master to any ground terminal of the first slave terminals 16 and 3 respectively are suggested for convenience To continue the sequence connect terminal 15 of the first slave to terminal 4 of the next slave Connect any ground terminal of the first slave...

Page 17: ...ons with a 500 KHz oscillator and with a 1 MHz oscillator Unique circuitry to accommodate different sensors cable lengths and target material as necessary is added to the control module in the form of a plug in circuit card This small circuit card is called a bridge card Some generalizations concerning the bridge card are 1 Different bridge cards are required for ferrous and non ferrous target mat...

Page 18: ...to different electrical conductivities and ferro magnetic properties of conductive materials When target material is changed a calibration adjustment at a minimum is recommended Reference guidelines in section 6 2 for additional system changes that may be required 6 4 Sensor Cable Length The sensor cable is part of the inductive bridge circuit As such any changes to the cable can affect system cal...

Page 19: ...0 160 mm 1 4 mils 60 200 mm 1 5 5 mils 150 600 mm 4 15 mils 80 320 mm 2 8 mils 120 480 mm 3 12 mils 300 1200 mm 7 5 30 mils 200 800 mm 5 20 mils 240 1000 mm 6 25 mils 600 2400 mm 15 60 2UB 2UBM 2 m Integral SINGLE COIL SENSORS 2U 2UM 2 m Integral 2SI 10 ft Removable 1U1 10 ft Integral 4S1 10 ft Removable 3U1 10 ft removable 2UB1 10 ft Removable 6UB1 10 ft Integral 6U1 10 ft Removable 4SB 10 ft Rem...

Page 20: ...0 mm 0 75 6 mils 30 250 mm 0 75 6 mils 50 500 mm 1 25 12 7 mils 50 500 mm 1 25 12 mils 100 1000 mm 2 5 25 mils 200 2000 mm 5 50 1S 1SM 2 ft Integral 8 ft removable 10 ft Integral 1UEPM 2 ft Integral 8 ft removable 1SU 1SUM 1UEP 1UEPM 10 ft Integral DUAL COIL SENSORS 2SMT 10 ft Integral 2S 10 ft Integral 8C 15 ft Removable 6CMT 15 ft Integral 6C 15 ft Removable 12CU 15 ft Removable 10CU 15 ft Remov...

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