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ElektroPhysik MiniTest 600 Operating Manual

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Bedienungsanleitung MiniTest 600 Version 2.4 Englisch

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Summary of Contents for ElektroPhysik MiniTest 600

  • Page 1 Bedienungsanleitung MiniTest 600 Version 2.4 Englisch...
  • Page 2 © 03/2002 B10-N Subject to change without notice. ElektroPhysik Dr. Steingroever GmbH & Co. KG Pasteurstr. 15 50735 Cologne Germany Tel.: +49 221 752040 Fax.: +49 221 7520467 web: www.elektrophysik.com mail: info@elektrophysik.com...
  • Page 3 MiniTest 600 Technical Reference and Operating Manual ElektroPhysik Advancing with Technology...

  • Page 4: Table Of Contents

    General Information ........1 Applications ..........1 Description of the gauge ......3 Equipment ........... 5 Probe construction ........5 Preparing the MiniTest 600 gauges ..6 Checking the power supply ...... 6 Replacing the batteries ......7 Start-up functions ........8 2.3.1 Total reset ............
  • Page 5 (zero only) ..........22 3.2.3 Two-point calibration (ZERO with one calibration foil) ....24 3.2.4 Calibration and measurement with MiniTest 600 FN ........27 3.2.5 Calibration and measurement on shot blasted surfaces........ 28 3.2.6 Adjusting the basic calibration ....31 General remarks on measurement ..
  • Page 6 Deleting the last reading taken ....36 Deleting statistics ........36 Interface description ....... 37 Accessories ..........38 Maintenance ..........39 Customer service ........39 Troubleshooting ........39 Example of how to operate the MiniTest 600 ..........41 Technical Data ......... 45 ElektroPhysik...
  • Page 7 Table of Contents 13.1 Technical data (metric system) ....45 13.2 Technical Data (imperial system) ..47 ElektroPhysik...

  • Page 8: General Information

    F probes work on the magnetic induction principle and should be used for non- magnetic coatings such as aluminium, chrome, copper, zinc, paint and varnish, enamel, rubber etc., on an iron or steel substrate; they are also suitable for alloyed and hardened magnetic steel. ElektroPhysik...
  • Page 9 When switched to automatic mode (see 1.2) both principles are used for coating measurement (the gauge version MiniTest 600 B is not equipped with an automatic mode to switch automatically between the two measuring principles).

  • Page 10: Description Of The Gauge

    (statistical evaluation is not possible with MiniTest 600 B). Note: MiniTest 600 FN is equipped with a manual as well as with an automatic mode. The manual mode serves to activate either the magnetic induction principle (F) or the eddy-current principle (N) by means of the arrow keys.
  • Page 11 Description of the gauge gauge is switched to automatic mode working on ferrous steel as well as on non-ferrous metal (the gauge version MiniTest 600 B is not equipped with an automatic mode). The statistical values measured on steel or on nonferrous metal (n, x, s, max, min) are stored in separate memories.

  • Page 12: Equipment

    A V-groove in the sleeve of the probes facilitates reliable readings on small cylindrical parts. The probe should be held by the spring-mounted sleeve.The hemispherical tip is made of hard and durable material. ElektroPhysik...

  • Page 13: Preparing The Minitest 600 Gauges

    Checking the power supply Preparing the MiniTest 600 gauges Checking the power supply 2 x 1.5 volt alkaline-battery or 2 x 1.2 volt rechargeable battery Check battery condition by pressing ON . no LC display: battery missing or batteries charge too low...

  • Page 14: Replacing The Batteries

    Replacing the batteries Place the gauge upside down on a suitable surface. Push the lid of the battery compartment in direction of the arrow and raise the lid of the compartment. Remove batteries. Insert new batteries. Replace the battery compartment lid. ElektroPhysik...

  • Page 15: Start-Up Functions

    (readings, calibration values, time and date). Start-up functions The MiniTest 600 gauges include a number of functions that can only be called up or activated through start-up of the gauge. Function...

  • Page 16: Total Reset

    LC display to be inspected and checked. Switch off the gauge. Hold down the ñ-key, press ON and keep both keys depressed. As long as the arrow key is depressed, all sections of the LC display will be shown. ElektroPhysik...

  • Page 17: Basic Gauge Settings

    The gauge will now display a pair of numbers: 1:0 or 1:1. Note: If you are using a MiniTest 600 FN, use the arrow keys to activate the F section (ñ) or the N section (ò ) or wait 3 seconds until switching between sections is performed automatically.
  • Page 18 Table of basic settings Zero-key Arrow-keys ↑ ↓ M odi-setting wwitch-off short-term m ode m ode long-term m ode key lock m ode for ZER O Cal keylock display light inactive (option) active m easuring m etric/m m m ode im perial/inch ElektroPhysik...

  • Page 19: Switching Between Short-Term And Long-Term Modes

    An accidental recalibration or unintentional offset input can be prevented by using the KEYLOCK function. To activate the KEYLOCK function please refer to the table of gauge settings in section 2.4. Select option with the ZERO and arrow keys as described. ElektroPhysik...

  • Page 20: Activating/Deactivating The Lc Display Light (Optional)

    Readings can be taken and displayed in metric and imperial units. To switch from metric units (µm, mm, cm) to imperials (mils, inch) or vice versa, please refer to the table of gauge settings in section 2.4. Select option with the ZERO and arrow keys as described. ElektroPhysik...

  • Page 21: Calibration And Measurement

    Calibration and measurement General remarks on calibration 3.1.1 Methods of calibration Three different calibration methods are available for the MiniTest 600 gauges: Standard calibration recommended for even surfaces and for approximate measurements, i.e. those that do not require the degree of accuracy of one- point calibration.

  • Page 22: Saving Calibration Values

    If a calibration is to be altered using the same pro- be, simply carry out a new calibration. This automatically deletes the previous calibration values and saves the new ones for immediate use. Note: If during the calibration procedure: an incorrect reading is taken ElektroPhysik...

  • Page 23: Example Of Calibration

    ST37 (mild steel) with a diameter of 6 mm (0.24"), the calibration of an uncoated sample must take place on a steel cylinder of similar quality with the same diameter. The calibration sample must correspond to the product sample in the following ways: ElektroPhysik...

  • Page 24: The Effects Of Substrate Thickness

    In the case of steel substrates, the thickness is of no consequence as long as it is greater than the general measuring range of the probe in use. In the case of non-ferrous metals, it is sufficient when the substrate is 50 µm (2 mils) thick and strong ElektroPhysik...
  • Page 25 50 µm (2 mils). In this case the enclosed aluminium plate may be used for calibration. (Thin layers of aluminium foil should be stuck to a hard base.) ElektroPhysik...

  • Page 26: High-Accuracy Calibration

    .The slightest impurity will affect measurement and distort readings. 3.1.7 Acoustic signal Whether the probe is being used for calibration or for measurement, it must be held in place and not lifted until the bleep sounds. ElektroPhysik...

  • Page 27: Stabilisation Of Calibration Values

    Apply the probe to calibration foil several times. If necessary, adjust the value shown on the LC display to the calibration foil value by means of the arrow keys. End calibration by pressing the calibration key again (ZERO or CAL). ElektroPhysik...

  • Page 28: Activate Standard Calibration

    Note: It is important to record a sufficient number of exact zero readings on an uncoated sample. If not, one- point or two-point calibration should be used. ElektroPhysik...

  • Page 29: One-Point Calibration Without Foil (Zero Only)

    Place the probe on the uncoated sample several times. The display always shows the mean value of the previous readings. To discontinue ZERO calibration, press CLEAR. Press ZERO to end zero calibration. The word ZERO will appear on the display (steady). ElektroPhysik...
  • Page 30 In this case: press ZERO and then CLEAR to delete the zero calibration and any existing CAL calibration. Note: This will reactivate the default standard calibration for use on even surfaces. ZERO calibration deletes an already existing CAL calibration. ElektroPhysik...

  • Page 31: Two-Point Calibration (Zero With One Calibration Foil)

    Place the probe on an uncoated sample (zero coating thickness) and raise it after the bleep. Place the probe on the uncoated sample several times. The display always shows the mean value of the previous readings. To discontinue ZERO calibration, press CLEAR. ElektroPhysik...
  • Page 32 The thickness of the foil should be roughly equivalent to the estimated coating thickness. Place the probe several times on the test sample. sThe display always shows the mean value of the previous readings. ElektroPhysik...
  • Page 33 It may be necessary to delete the CAL calibration if, for example, an incorrect calibration is entered. In this case: Press CAL then CLEAR to delete the CAL calibration and any existing ZERO calibration. ElektroPhysik...

  • Page 34: Calibration And Measurement With Minitest 600 Fn

    3.2.4 Calibration and measurement with MiniTest 600 FN The universal probe of MiniTest 600 FN uses both the magnetic induction (measuring range: 0 ... 3mm ... 0.12") and the eddy-current principle (measuring range: 0 ... 2 mm (0 ... 0.08")).

  • Page 35: Calibration And Measurement On Shot Blasted Surfaces

    Measurements can then be carried out immediately. 3.2.5 Calibration and measurement on shot blasted surfaces The physical nature of shot-blasted surfaces results in coating thickness readings which are too high. ElektroPhysik...
  • Page 36 Now take approx. 10 readings on the uncoated, shot-blasted surface to obtain the mean Subsequently, take approx. 10 fur ther readings on the coated and similarly shot blasted test sample to produce the mean value ElektroPhysik...
  • Page 37 50 µm (2 mils) thickness each and should roughly correspond to the estimated coating thickness. The coating thickness can be read directly and should be averaged from 5 ... 10 single measurements. The statistics function is useful here. ElektroPhysik...

  • Page 38: Adjusting The Basic Calibration

    Strong magnetic fields near generators or live rails with strong currents can affect the reading. When using the statistic program (not available when using MiniTest 600 B) for obtaining a mean value it is advisable to place the probe several times in the ElektroPhysik...

  • Page 39: Measurement Using Statistics

    Measurement using statistics The MiniTest 600 can calculate statistics from a series of stored measurements (max. 9 999 readings). The statistical values can be printed out without a list of corresponding single values (see 4.5).

  • Page 40: Definition Of Statistical Values

    Definition of statistical values · Mean The mean is the sum of the single values divided by the number of readings ∑ MEAN = Standard deviation s (STD. DEV) The standard deviation measures the scattering of readings. The greater the ElektroPhysik...

  • Page 41: Entering A Series Of Measurements For Statistical Analysis

    1. − ∑ scattering − standard deviation Entering a series of measurements for statistical analysis The gauge can be used for measurements immediately after it is switched on. All readings will be automatically logged to the statistics program. ElektroPhysik...

  • Page 42: Storage Capacity Overflow

    Subsequent readings will be marked with the error message E11. Display and print-out of the 5 statistical values for a series of measurements (no single value) Each time STATS is pressed the statistical values will appear in the order N (values), MEAN, ST.D., MAX, MIN. ElektroPhysik...

  • Page 43: Delete' Functions

    Deleting statistics Press STATS and CLEAR. A short bleep confirms that the reading has been deleted. For MiniTest 600 FN the statistics of the F-part and the N-part are deleted separately. The desired measuring procedure in automatic mode (F-probe or N-probe) is...

  • Page 44: Interface Description

    A short bleep confirms that the statistics for the selected measuring principle have been deleted. Interface description The gauge MiniTest 600 can be connected to a PC with a uni-directional RS232C interface. An RS232 interface connection cable is necessary which can be ordered from us.

  • Page 45: Accessories

    Accessories In-service carrying case Clear-view cover for protection against mechanical damage. MiniPrint 4100, portable data printer Connecting cable MiniTest/PC Cable to connect MiniTest 600 to MiniPrint 4100, portable printer Precision stand for high-precision readings and measurements on small components ElektroPhysik...

  • Page 46: Maintenance

    We should be grateful if you could enclose a brief description of the fault. 11. Troubleshooting The following list of error messages explains how to identify and eliminate faults. ”E“ (E = error). ElektroPhysik...
  • Page 47 E 6: Battery voltage too low. Error messages displayed for about 1.5 sec: E 11: Memory full. If faults occur without an error message appearing, e.g.: the gauge does not switch itself off automatically readings are no longer registered ElektroPhysik...

  • Page 48: Example Of How To Operate The

    Note: The quickest remedy is a total reset! 12. Example of how to operate the MiniTest 600 Gauges available: MiniTest 600 F; MiniTest 600 N; MiniTest 600 FN. also required: steel or aluminium zero plate Press ON. According to probe type, the display will show FERROUS or NON-FERROUS and µm or...
  • Page 49 Operating example Exception: MiniTest 600 FN: FERROUS flashes on the display. Press the arrow keys within the next 3 sec. to choose between measurements on iron and non-ferrous materials: Press (ñ) for measurements on steel (“Ferr”). Press (ò) for measurements on non-ferrous metals (“Non-Ferr”).
  • Page 50 E.g. take a calibration foil, lay it on the zero plate and place the probe on it several times. The gauge will now display the calibration foil thickness, taking into account gauge tolerances. For increased accuracy calibrate again with one of the calibration foils. ElektroPhysik...
  • Page 51 The display will show ZERO and CAL and µm or mils. For further details, please look up the point you wish to clarify by referring to the Contents (at the front) or the Index (at the back) of the operating instructions. ElektroPhysik...

  • Page 52: Technical Data

    0 ... 3 mm 0 ... 2 mm range 0 ... 2 mm Low range 0.2 mm resolution Guaranteed ± (2 µm + 2 % of the reading) tolerance level Min. radius of 5 mm convex curvature 25 mm concave ElektroPhysik...
  • Page 53 Industrial DIN 50981, 50984; ISO 2178, 2360; standards BS 5411; ASTM B499, B244 Ambient 0 ... 50° C temperature gauge Ambient -10 ... 70° C temperature probe Dimensions 115 mm x 64 mm x 25 mm Weight 270 g ElektroPhysik...
  • Page 54 0 ... 120 mils 0 ... 80 mils range mils 0 ... 80 mils Low range 0.02 mils resolution Guaranteed ± (0.08 mils + 2 % of the reading tolerance level Min. radius of 0.2 inch convex curvature 1.2 inch concave ElektroPhysik...
  • Page 55 Industrial DIN 50981, 50984; ISO 2178, 2360; standards BS 5411; ASTM B499, B244 Ambient 32 ... 122° F temperature gauge Ambient 14 ... 158° F temperature probe Dimensions 4.53 inch x 2.5 inch x 0.98 inch Weight 9.5 ozs ElektroPhysik...
  • Page 56 Calibration ............14 Calibration foil ............ 25 Calibration values ........15, 19 Connecting cable ..........38 Contact pressure ..........5 Cylindrical parts ........... 5 Default calibration ..........27 Defective gauges ..........39 Delete functions ..........36 Display light ............13 ElektroPhysik...
  • Page 57 Example ............. 41 Geometry .............. 4 Imperial system ..........47 Imperial unit ............13 Insulating coatings ..........2 Interface .............. 37 Keylock function ..........12 LC display ............. 3, 13 LCD segment test ..........9 Long-term mode ..........12 ElektroPhysik...
  • Page 58 Metric unit ............13 MiniPrint portable data printer ......4 One-point calibration ........14, 22 Point of measurement ........17 Power supply ............6 Precision stand ..........17 Pressure ............. 18 Probe ..............1 Probe tip .......... 5, 18, 19, 31 ElektroPhysik...
  • Page 59 Statistical analysis ..........34 Statistical values ..........32 Storage capacity ..........35 Substrate thickness ..........17 Table of basic settings ........11 Table of start-up functions ........8 Technical data ............ 45 Total reset ............9, 41 Two-point calibration ........15, 24 ElektroPhysik...
  • Page 60 Index V-groove ............... 5 Zero calibration ........... 22, 30 ElektroPhysik...

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