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Summary of Contents for Magnet-physik FH 52
- Page 1 Emil-Hoffmann-Strasse 3 50996 Koeln Germany Operating Instructions FH 52 Gauss-/Teslameter Preserve for future application! BA - Nr.: 1620010102...
- Page 2 If you face any problems while working with the equipment or the operating instructions or if you have any proposals for improvements please do not hesitate to contact us. Purpose The user's manual gives a survey about the applications and functionality of the FH 52 Gauss-/Teslameter. Target Group In the following chapters the user of the equipment will find all necessary information regarding the handling of the product or device.
- Page 3 • We also state that the content of these Instructions is not part of a previous or existing agreement, undertaking, or legal relationship, and is not intended to amend the same. All obligations of MAGNET-PHYSIK result from the applicable warranty: These contractual warranty provisions are neither extended nor limited by statements in these instructions.
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Page 4: Table Of Contents
Gauss-/Teslameter FH 52 Table of Contents General Information ....................6 Safety Instructions ....................6 Intended Purpose of Operation ................6 Sources of Danger ....................7 Authorized Operators ................... 8 Safety Measures at Place of Installation .............. 8 Safeguard Installations ..................8 Emergency Measures ................... - Page 5 Gauss-/Teslameter FH 52 Probes ........................26 3.7.1 Probe Handling ....................27 3.7.2 Polarity of the Magnetic Field ................. 28 Remote Operation ....................29 Operating Principle ....................29 Maintenance ........................31 Maintenance Plan ....................31 Checking for Damage ..................31 Calibration ......................31 Troubleshooting ....................
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Page 6: General Information
Indicates important information that is to be paid particular attention. 1.2 Intended Purpose of Operation Important! It must be explicitly stated that the FH 52 is to be used only for its intended purpose. The intended purpose of the FH 52 is the measurement of the magnetic field strength or the magnetic flux density of static or periodically alternating magnetic fields. -
Page 7: Sources Of Danger
The FH 52 is operated with battery power. For reasons of work-place safety and accident prevention the sources of danger emanating from the use of the device will be pointed out here. The respective instructions to the operator and owner of the FH 52 are to be strictly adhered to. Danger! Do not operate the instrument in an explosive atmosphere. -
Page 8: Authorized Operators
1.4 Authorized Operators The FH 52 must only be used by personnel authorized by the owner. In this case the owner must: • place operating instructions at the operator’s disposal at all times and •... -
Page 9: Transport And Installation
If the device has been damaged in transit, make sure the forwarder and insurance are informed. Inform Magnet-Physik of the same. If there are parts or accessories missing, let Magnet-Physik know immediately. Magnet-Physik cannot accept responsibility for any missing parts if not informed within 60 days from date of dispatch. -
Page 10: Table 2: Ambient Conditions
Table 2: Ambient Conditions Temperature: - for operation 0 °C to +40 °C (the FH 52 can be operated from -10 °C to +40 °C, but AC accuracy is not specified below 0 °C) - for storage and transport Class 1K4 according to EN 50178 -25 °C to +55 °C... -
Page 11: Installation
Gauss-/Teslameter FH 52 Air pressure - for operation Class 3K3 according to EN 50178 86 kPa to 106 kPa - for storage and transport Class 2K3 according to EN 50178 70 kPa to 106 kPa 0,5 ppm Pollutants: - SO (rel. -
Page 12: Structure Of The Device
User interface are front panel keys and a liquid crystal display (LCD). Most important user features are only one pushbutton away. In Fig. 1, the front side of the FH 52 is shown. The sockets on the upper side are used for probe and USB connection. -
Page 13: Options (To Be Ordered Separately)
To take the FH 52 into operation, please proceed as follows: 1. Install the batteries: Open the door on the bottom side of the FH 52. Install 4 batteries observing the polarity for each cell into the battery compartment. Close the door again. -
Page 14: Operation
FH 52 3 Operation The FH 52 is a measuring instrument that allows measuring the magnetic flux density or induction B and the magnetic field strength H of static or periodically alternating fields. The instrument is characterized by a large measuring range, high accuracy and easy operation. It is operated via keys or the USB interface. -
Page 15: Key Pad
The unit behind the actual reading also applies to these values. If the FH 52 is set to remote mode via the USB interface, an R is shown in the upper right corner. In remote mode, the operation using the key pad is restricted. -
Page 16: Functions
1.6 kA/cm 20 kOe In Auto mode, the FH 52 automatically selects the range with the best resolution for the value to be measured. It can take about 1 second until the range is set. Besides the device switches already at 90 % of the upper range limit into the next higher range and it returns at 7 % of the upper range limit into the next lower range. -
Page 17: Zero Key - Zeroing The Probe
The FH 52 allows capturing the maximum absolute reading, the maximum and minimum, and the difference between maximum and minimum. For details see chapter 3.3.10. -
Page 18: Main Menu
N (for North) and S (for South), see chapter 3.3.14. 3.3.8 Unit Menu The FH 52 shows the magnetic flux density or induction B in Tesla (T) or Gauss (G) or the magnetic field strength H in Kiloampere per Meter (kA/m), Ampere per Centimeter (A/cm) or Oersted (Oe). -
Page 19: Filter Menu
Gauss-/Teslameter FH 52 Fig. 5: Unit menu Between the units and their multiples there are the following relations: Magnetic Flux Density B: Magnetic Field Strength H: 1T = 1000 mT 1 kA/m = 1000 A/m = 10 A/cm 1 T = 10000 G 1 A/m = 0.001 kA/m = 0.01 A/cm... -
Page 20: Max./Min. Menu
Gauss-/Teslameter FH 52 3.3.10 Max./Min. Menu The Max./Min. function allows capturing maximum and minimum values. Fig. 7: Max./Min. menu If Absolute is selected, the maximum is shown in the line below the measured value. The Reset maximum is the highest reading that was captured since the key was pressed last. -
Page 21: Relative Menu
Gauss-/Teslameter FH 52 Fig. 8: Limit menu Before the Limit function can be used, it must be configured. In the first line, it can be switched Enter on or off. The selection is done with the arrow keys and confirmed with In the second line the limit mode can be selected: +/- or Absolute. -
Page 22: Information Menu
Gauss-/Teslameter FH 52 Fig. 9: Relative menu In the first line of the Relative menu the function can be switched on or off. If it is switched on, the reference value is shown in the status line of the measurement display. -
Page 23: Display Menu
3.3.15 Power Off Menu To save battery current, the FH 52 can automatically power down itself after a selectable time. You can set this time to 5 minutes or 20 minutes or you can disable this function. If any key is pressed the timer is reset, i.e. -
Page 24: Test Menu
The automatic Power Off function is not active if the FH 52 is powered from the USB. 3.3.16 Test Menu When the Test menu is invoked, the FH 52 will carry out some self-tests. The results of the tests are shown. -
Page 25: Switching Between Battery Power And Usb Power
3.5 Standby Mode If the FH 52 is connected to a PC and the PC enters the standby or energy saving mode, the FH 52 will also go into standby mode. In this case the display shows “Entering Standby” for a short time. -
Page 26: Probes
This will avoid damage due to leaking batteries. 3.7 Probes Two standard probes are available for the FH 52: a transverse and an axial probe. The transverse probe has a Hall sensor that is mounted parallel to the probe axis. It measures a magnetic field that is aligned in one direction perpendicular to the probe axis. -
Page 27: Probe Handling
For connecting a probe, move the plug straight into the connector. Pull the plug straight out for removing the probe. The FH 52 does not work without a probe. “The probe is missing!” is displayed if the device is switched on without a probe connected. When a probe is attached, the probe data are automatically read into the instrument. -
Page 28: Polarity Of The Magnetic Field
Gauss-/Teslameter FH 52 Important! For best results, the instrument and probe should warm up for at least 5 minutes before operation. If used, the optional shielding chamber and the probe should be at the same temperature. 3.7.2 Polarity of the Magnetic Field In the DC signal mode, the orientation of the probe in the magnetic field affects the polarity reading (+ or –... -
Page 29: Remote Operation
0.4 % error, a 10° misalignment induces a 1.5 % error. 3.8 Remote Operation The FH 52 is equipped with a USB interface. This can be used to transfer measurements to a computer and the FH 52 can be remotely controlled. -
Page 30: Fig. 17: Operating Principle Of A Hall Generator
The simplest method to keep the resulting linearity error as small as possible is loading the Hall voltage with an appropriate resistor. High quality instruments, as the FH 52, additionally carry out a computed correction for the non-linearity. Therefore the characteristic curve of the sensor is measured. The points are stored in a data memory that is integrated in the plug of the probe. -
Page 31: Maintenance
The checks shall be periodically repeated and documented. 4.2 Checking for Damage The FH 52 and all accessories must be checked once a month for damages. If any of the components, in particular the instrument housing, a probe or an optional line power supply (AC adapter) are damaged, the equipment must only be used if it has been cleared for operation by an authorized person. -
Page 32: Taking Out Of Operation
• “This probe is not supported!” is displayed: You are trying to use a probe that is not suitable for a FH 52 or the present version of the FH 52. In case of doubt, ask Magnet-Physik. Therefore, it is necessary to submit the serial numbers of the FH 52 and of the probe.
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