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Summary of Contents for Kett DT-8
- Page 1 Inline Iron Detector DT-8 Operating Manual...
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Page 3: Table Of Contents
CONTENTS 1. Detection Principles and Features ………......4 2. Name and function of each part ........5 3. Specifications ..............7 4. Setup …………………………........... 8 5. Sensitivity adjustment ............1 3 6. Maintenance ..............1 4... -
Page 4: Detection Principles And Features
1. Detection Principles and Features 1 - 1. Detection Principles This unit uses electromagnetic induction by a static magnetic field. When a magnetic flux passes through a coil, a voltage will not be generated in the coil unless there is no change in the magnetic flux. However, if an iron piece enters this magnetic flux, the magnetic flux in the coil changes due to magnetization of the iron piece and a voltage will be generated in the coil eventually. -
Page 5: Name And Function Of Each Part
2. Name and function of each part 2-1. Part names ＜ 1 channel ＞ Front of the main unit Rear of the main unit Sensor part Buzzer connector Alarm lamp (Large red) External control connector Pilot lamp Sensor Power switch Power connector Hold switch connector... - Page 6 ＜ 4 channels ＞ Front of the main unit Rear of the main unit Sensor part Alarm lumps for each channel (Small red) Alarm lamp (Large red) N o . 1 N o . 2 N o . 3 N o . 4 Pilot lamp Buzzer connector External control connector...
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Page 7: Specifications
3. Specifications Power supply ： 100 V AC (50/60 Hz) *(120V/200V/220V/240V) are optionally available Power consumption ： 10W per channel Detection type ： Magnetic induction method Detection capability ： 5 to 6 cm for insect pins (100 mg) at maximum sensitivity Direction ：... -
Page 8: Setup
4. Setup 4-1. Install While referring to the figure below, install the main unit and sensor according to "4-2. Main unit" and “4-3. Mounting the sensor”. Conveyor L-angle welded or bolted To main unit Installation of buzzer (with cable and connector) Install the buzzer away from the sensor and sensor cable. - Page 9 4-3. Mounting the sensor 1. Mounting location Select a location where there is no moving magnetic material (iron) within 500 mm for sensor installation. For example, do not place moving objects such as rotating rollers, chains, or gears, or electrical devices or parts that emit magnetism, such as motors, electromagnetic valves, and relays, as they may cause erroneous detection.
- Page 10 4. Mounting base When fixing both ends of the sensor to the mounting base, the surfaces of the mounting bases at both ends should be the same parallel plane or the same horizontal plane. This is to prevent the sensor itself from being distorted when the sensor is fixed with bolts or the like.
- Page 11 4-4. External control Omron MK2P contact relay is used inside the main unit as external control circuit. Since the open/closed status of the contact point is linked with alarm, it is possible to notify an external device of detection of iron piece. When connecting an external device, use the external control cable provided as accessory.
- Page 12 4-5. Split sensor The split sensor divides the inside of single sensor into 2 to 4 parts and generates a voltage independently for each part. When a split sensor is connected to a multi-channel main unit, not only the common large alarm lamp but also the alarm lamp of the channel corresponding to the passage position of mixed iron pieces will light up.
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Page 13: Sensitivity Adjustment
5. Sensitivity adjustment （ 1 ） Make sure that the power supply, sensor and alarm buzzer are properly connected. （ 2 ） Turn on the hold switch. （ 3 ） Adjust the sensitivity with the sensitivity adjustment knob while passing the iron piece of the size you want to detect through the installed sensor. -
Page 14: Maintenance
5. Maintenance （ 1 ） Dirt, dust, iron powder, etc. adhering to the sensor may cause malfunction, so always keep it clean. （ 2 ） The sensor connector part is vulnerable to tension, so handle it with care.. （ 3 ） For safe use of the device, prepare a "test piece" and check the operation regularly or as needed. - Page 16 Notes ● Copying some or all of the contents of this user manual without prior written consent is strictly prohibited. ● The contents of this user manual may be changed at any time in the future without any prior notice. ●...
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