Detailed Product Description
一、Brief Description
MJE - 2 electromagnetic yoke horseshoe type flaw detector is my company to absorb the advantages of similar products of home and abroad to design and manufacture a new type of magnetic particle detection device.The magnetization and magnetic field method is adopted, the instrument has the advantages of small volume, light weight, with standard aluminum alloy box, easy to carry, the instrument can meet A, D, O three probes.
Selection of functions:
►A type probe：It is also named Horseshoe fillet weld yoke probe or probe , joint activities bevel heads, with working lights ; on the contoured surface , especially for the complex shape of the workpiece inspection polar distance :20 -160 mm ; lifting force :. AC ≥ 4.5 kg , DC ≥ 18 kg ; weight: 2.0 kg. Using this probe is made of a piece of equipment called a horseshoe or a fillet weld yoke flaw detector, probe the use of a wide range of joint activities .
►D type probe：It is also named electromagnetic yoke detecting head with multiple movable joints and strong magnetism. Polar distance :60-220 mm, lifting power: AC ≥ 5 kg, DC ≥ 18 kg; Weight: 2.5 kg independent probe into the use of such devices called magnetic yoke flaw detector, the probe has a high permeability, high magnetization etc.。
►O type probe：It is also named ring-shaped detecting head; inner diameter 150mm, central magnetic field ≥ 1,800e Weight: 2.5 kg .Independent made a device called the ring detector using this probe.It is the principle of using electricity generated when a strong magnetic field coil design, Suitable for shaft rod class, pipe class, class and other complex workpieces blade segment or demagnetization detection.
二、Technical Performance
1、Power supply：AC 220V ±10％ 50HZ 5A
2、Output：AC 36V 15A Optional A, D, O three kinds of probes
3、Testing speed： ≥6m/min
4、Detecting head temperature rise：≤60℃
5、Working intervals：In the case of continuous operation for a long time, it is recommended：
Magnetization time: ≤3 sec; interim: ≥5
Instrument weight：about 6.0Kｇ
三、Basic Configuration
1、MJE—2 Host computer 1
2、probe 1
3、Power line 1
4、Output lines 1
5、Fuse 5A 2
6、High brightness light bulbs 10W/12V 2
7、Certificate 1
8、Warranty 1
四、Operation and Maintenance
Please read the Operating Instructions carefully before operation to master the structure and technical performance of the instrument and check if the power supply is applicable for the instrument and the connection is proper. Switch on the power only after everything is checked proper. Check if the instrument is in a sound condition when the instrument is used for the first time or has been out of operation for long.
1.Operating steps
(1).Connect the plug to the power supply socket and then connect the detecting head to the output socket.
(2).Switch on the power to turn on the indicator light, connect the instrument control circuit and enable the servo.
(3).Keep a good contact between the detecting head and the work piece and turn on the switch on the detecting head. Then the instrument will be magnetizing the work piece and the working lamp will be on. Then release the switch to cut off the power supply and stop the magnetization;
(4).Please switch off the mains switch after use
2.Troubleshooting:
(1) The indicator light remains off and the tester does not work after the mains switch is turned on. The fuselage is broken due to short circuit or overload.
(2) The indicator light remains off after the switch is turned on and the detecting head is working. The indicator light fails.
(3) The indicator light is on but the detecting head does not magnetize. There is something wrong with the main circuit or control circuit.
(4) Switch on the power and magnetization is enabled even without turning on the magnetization switch. There is something wrong with the control circuit or bidirectional controlled silicon.
Precautions
(1) Working intervals: In the case of continuous operation for a long time, it is recommended: Magnetization time:≤3 sec; interim: ≥5
(2) Check if the power supply voltage is applicable for the instrument before operation as either overvoltage or undervoltage will damage the instrument or affect the test result.
(3) The detecting head shall maintain a good contact with the work piece before turning on the magnetization switch as the magnetizing effect will be optimal then.
(4) Although this instrument features a sound overload protective circuit, operation with empty load shall be avoided as much as possible to eliminate unnecessary temperature rise.
(5) The instrument is capable of continuous operation. Stop the instrument if overtemperature is detected and have a troubleshooting before using it again.
(6) The instrument and its accessories shall be used or stored where it is clean, dry and corrosion-free.
(7) Please beware of high voltage in the instrument during troubleshooting.
(8) Do not turn on or turn off the mains switch when the magnetization switch is pressed down.
(9) The instrument case must be reliably grounded.
(10) Please send the instrument to our Service Center for repairing if the electric faults can’t be repaired by you.
