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Logika Technologies Inc. Model HMD-SM Operator’s Manual

Rev 2.1 Dec-

Web

www.logikatech.com

Phone

: 905-829-5841

Fax

: 905-829-8787

Email

[email protected]

P a g e

| 18

Figure 8.2: HMD-SM Enclosure front View

Figure 8.3: HMD-SM Enclosure top View

Summary of Contents for HMD-SM

Page 1: ...Scanning Hot Metal Detector HMD SM Operator s Manual Revision 2 1 ...

Page 2: ...t 5 2 5 Other Features 5 3 Location and Mounting 6 3 1 Sensor Location 6 3 2 Sensor Mounting 7 4 Utility Connections 7 4 1 Electrical Connections 7 4 2 Cooling Water Connection 9 4 3 Purge Air Connection 10 5 Operation 10 5 1 Control Panel 10 5 2 Automatic Threshold Level Description 11 5 3 Remote Threshold Sensitivity 12 5 4 Test Function 13 5 5 Troubleshooting 13 6 Maintenance 14 6 1 Regular Mai...

Page 3: ...vy industrial environments The HMD SM is used to detect hot metal in a range of temperatures shapes and sizes of wire bar strip thin plate thick plate billet and slab production facilities The scanning mode feature allows the HMD to detect hot metal across the entire width of a production line It also enables the HMD to be installed remotely from the hot metal target further protecting the electro...

Page 4: ...VDC 500 C 930 F Housing Hermetically sealed cast aluminum enclosure rated IP66 includes cooling water connections and air purge Size Enclosure 315 mm L x 110 mm W x 264 mm H with mounting bracket 12 4 L x 4 3 W x 10 4 H Weight 7kg or 15 lb Min Target Temp 250o C 480o F Scanning Angle 10 30 50 Water Cooling 25 C 4 bars pressure 60 psi 1 2L min 0 26 to 0 52 USG flexible tube Air Purging 50 to 200 g ...

Page 5: ...nned using a rotating drum of multiple mirror facets that reflect the energy from the hot metal target in the scanning field to the PbS photocell see Figure 2 2 for details The infrared energy is converted to an electronic signal by the PbS photocell which is then processed by the electronic circuit and changed to a logic signal for analysis and control purposes Figure 2 2 HMD SM Scanning System V...

Page 6: ...r width angle is set at 1 degree with a 4 meter is 8mm A positive output signal will result if any portion of the hot metal is within the 8 mm scanning field For different targets see the in section 3 1 for more details Threshold Level Adjustment n Automatic Threshold Level Adjustment to decrease the detector signal when hot metal is detected to prevent detector signal saturation The user adjusts ...

Page 7: ...ross the width of the process line for best coverage Target HMD Distance Target HMD Distance Wire rod 5 12 mm 0 2 3 0 m Steel Strip 0 6 2m Bar 10x10 40x40 mm 0 2 4 0 m Thin Plate 1 0 6 0m Square Billet 0 5 6 0 m Thick Plate 1 0 8 0m Large Billet Bloom 2 0 m Slab 2 0m Table 3 Interference Reduce or eliminate background infrared radiation sources such as other hot processes behind the target and ref...

Page 8: ...that contains excessive water vapor or smoke additional ventilation such as air curtains or fans should be used to clear the area so the sensor can see the hot metal target 4 Utility Connections 4 1 Electrical Connections Electrical Overview All electrical connections power and signal to the HMD SM are made via a 15 pin male Harting connector a supplied 2 meter long cable with quick fitting on one...

Page 9: ...eferred to 0VDC Figure 4 1 Terminal 3B 1 Control Output Figure 4 1 Terminal 2A Green Normal Output 24VDC Diagnostic Alarm Output 0VDC indicated if one or more occurs Dust or vapor interference on glass Target temperature drop Signal saturation 2 Alarm Output Figure 4 1 Terminal 4C Normal Output 24VDC Alarm output 0VDC indicated if one or more occurs Power input loss Scanning motor runs abnormally ...

Page 10: ...110VAC 24VDC 24VDC 24VDC 24VDC Shielding Figure 4 1 HMD SM Wiring Diagram 4 2 Cooling Water Connection Description When the ambient temperature is higher than 50o C 120o F cooling water system is required to protect the electronics inside the enclosure Two Φ10mm OD barbed fittings are available beside the electrical connector for cooling water to circulate inside the enclosure the direction is not...

Page 11: ... air quality will result in dirty lens and decrease detector performance If the quality of compressed air can t be guaranteed it is better not connect it to the sensor to avoid the lens contaminated and affect the sensor s performance Air filtration prior to the inlet fitting is recommended to improve the quality of purge air Air Pressure range from 50 to 200 g cm2 0 7 psi to 2 8 psi Air Flow rate...

Page 12: ...higher Adjust sensitivity of the detector within each range 1 to 7 refers low to high Toggle Switch Sensitivity range selection N normal or H high use corresponding potentiometer for the sensitivity adjustment Note Improve the sensitivity may trigger fault detection signal N H 1 7 TEST 1 7 LED Figure 5 1 HMD SM Control Panel 5 2 Automatic Threshold Level Description Definition The HMD SM includes ...

Page 13: ...sensitivity toggle switch toward H Tune high threshold level potentiometer to 3 middle position Adjust the potentiometer until the LED color changes from green to red This is the lowest threshold setting for this application Turn the potentiometer one unit higher clockwise as the operating base threshold level setup 4 If the LED does not change from green to red with hot metal in HMD scanning fiel...

Page 14: ...ow the steps below Connect power supply to the HMD SM make sure the green LED is ON Press and hold the TEST button when no target in the scanning field of view The LED turns to red The relay clicks Pin 4B white High Detect changes to 24VDC from 0VDC compare to Pin 3B Blue Pin 4A Black low Detect changes to 0VDC from 24VDC compare to Pin 3B Blue Release the test button to return to normal operation...

Page 15: ...ions as necessary See additional notes below Control Output terminals 2A 3B output 0VDC Check that the sensor wiring connections are correct that the connections are secure and tight and that the power supply is proper and normal Alarm Output terminals 4C 3B normally will output a signal of 24VDC If the output is 0V following a detected error the following situation may occur 1 If the housing temp...

Page 16: ...rization number If the product is out of warranty we will provide a repair estimate and then complete the repairs upon your approval 7 Accessories Hot Metal Simulation Test Bar In order to facilitate the installation use and maintenance of HMD SM hot metal detector and other infrared sensors Logika has developed a hot metal simulation test bar Model TP 1 This process simulation tool uses an AC pow...

Page 17: ... Technologies Inc Model HMD SM Operator s Manual Rev 2 1 Dec 13 Web www logikatech com Phone 905 829 5841 Fax 905 829 8787 Email info logikatech com P a g e 16 Figure 7 1 Hot Metal Simulation Test Bar Drawing ...

Page 18: ...del HMD SM Operator s Manual Rev 2 1 Dec 13 Web www logikatech com Phone 905 829 5841 Fax 905 829 8787 Email info logikatech com P a g e 17 8 HMD SM Enclosure Dimensions All units are in mm Figure 8 1 HMD SM Enclosure Side View ...

Page 19: ...Inc Model HMD SM Operator s Manual Rev 2 1 Dec 13 Web www logikatech com Phone 905 829 5841 Fax 905 829 8787 Email info logikatech com P a g e 18 Figure 8 2 HMD SM Enclosure front View Figure 8 3 HMD SM Enclosure top View ...

Page 20: ...Logika Technologies Inc Model HMD SM Operator s Manual Rev 2 1 Dec 13 Web www logikatech com Phone 905 829 5841 Fax 905 829 8787 Email info logikatech com P a g e 19 Figure 8 2 Junction Box Dimension ...

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