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Stefan Mayer Instruments AM502 Series, Инструкция по эксплуатации

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11 

 

5 

Functions and Configuration 

5.1 LOGGING (Data Saving for Computer-Analysis) 

In this menu the actual logging mode (ON/OFF) and the number of free entries will be shown: 

 

 
 

 
By pressing (OK) a sub-menu with the following points is displayed: 
 

Activate Logging 

 
 
 
 

When pressing (OK) the storage of measurements in the internal flash memory will be activated. 
To be sure about this logging activity, the "LOG" and "G-LOG" indicators should be observed when 
taking measurements. 

 
Deactivate Logging

 

 
 
 
 

Pressing (OK) in this menu will deactivate the logging. 
 

Clear Logging Memory

  

(Attention! All saved data will be lost!)

 

 

 
 
 

 
When pressing any other key than (OK), then nothing will be deleted. This offers a last chance to 
leave this menu without any loss of data. 
 

Back to the Main Menu 
 

 
 
 

 
Pressing (OK) leaves the logging menu and returns to the main menu. 
 

 
Hints regarding Data Logging 
 

•

  An indication record will be saved when the periodic measurements are stopped (pressing (OK)) 

or  started  (pressing  (OK)  again).  This  allows  to  split  sets  of  measurements  (e.g.  rows  in  a 
surveyed field) during later computer analysis. 

•

  It  is  not  possible  to  view  saved  measurements  via  the  display  of  the  instrument,  because  a 

practical  navigation  through  a  huge  number  of  measurements  with  optional  GPS  data  is  not 
realistic without spreadsheet tools as available on computers. 

LOGGING 
OFF  FREE: 32768 

LOG ON 
< - + > 

LOG OFF 
< - + > 

CANCEL 
< + - > 

CLEAR LOG (!) 
< - + > 

Содержание AM502 Series

Страница 1: ...r Engineered by Alexander Mumm www alexmumm de Instruction Manual July 2018 Document Version 4 1 Software Version V0406 0925 Stefan Mayer Instruments GmbH Co KG Wallstr 7 D 46535 Dinslaken Germany Phone Fax 49 2064 479762 3 www stefan mayer com ...

Страница 2: ...4 Display of the Power Supply Status and of Exceptions 9 4 5 Menu Structure 10 5 Functions and Configuration 11 5 1 LOGGING Data Saving for Computer Analysis 11 5 2 TUNING Bandpass Center Frequency 12 5 3 PERIOD Duration between Measurements 12 5 4 DISPLAY View Configuration 13 5 5 SOUND Beeper Configuration 14 5 6 ALARM Alarm Thresholds 14 5 7 AUTOTUNE Automatic Tuning 15 5 8 GPS Info Display 15 ...

Страница 3: ...uids Do not connect the instrument to the 12V clamps of a car Never connect the instrument to voltages above 18V Avoid discharging Lead Acid Batteries below 11 5V Lead Acid Batteries must not stand upside down Wear eye protection glasses and gloves when filling the sensor with liquid Avoid disconnecting the sensor cable from the instrument whenever the magnetometer operation is in progress Do not ...

Страница 4: ... field and is practically insensitive to temperature Hence very high accuracy and resolution down to fractions of a nanotesla can be achieved However two disadvantages cannot be neglected the relatively low measuring rate and the high electrical power needed to generate the polarization field A proton magnetometer is a precision instrument which cannot be used in the presence of magnetic disturban...

Страница 5: ...oid field gradients caused by minerals stones etc A plastic or wooden stand can be used for this purpose Ensure that no nails or other metals are used within such a stand The axis of the sensor should be aligned such that the earth s magnetic field lines are passing through the sensor in a perpendicular way This will result in a maximum precession signal from the protons Of course the first power ...

Страница 6: ...he shielded sensor cable is audio qualified with low microphonic effect to reduce signal distortions Attention Avoid disconnecting the sensor cable whenever the magnetometer operation is in progress RS232 Data Interface with auxiliary 5V Supply Data GPS 5 pins This connection includes the Rx and Tx pins of a standard serial RS232 interface as well as an output voltage of 5V 100mA for the optional ...

Страница 7: ...h the satellites providing correct coordinates as well as time and date This can take many minutes especially if the GPS receiver was not powered on for a long time or if it was moved to another location far away When waiting for a GPS fix the magnetometer displays the GPS WAIT message The numbers are showing some first data from the GPS receiver to indicate progress When the GPS fix has been perf...

Страница 8: ...h after completion of the frequency measurement These numbers are unit less guidance values to see if the measurements are reliable or disturbed They can be compared only if the tuning setting is not changed Display Variant 2 Bar Graph This view shows a simple bar graph visualizing either the difference to a reference value will be set by a 3 sec long press of the OK key see below or the differenc...

Страница 9: ...display and for the alarm function see chapter 5 6 if configured accordingly 4 4 Display of the Power Supply Status and of Exceptions If the power supply voltage is too high or too low a message will be displayed In this case it is not possible to take measurements Note that the internally measured supply voltage is shown in the information display see 5 9 too More messages e g about the connectiv...

Страница 10: ...T 47965 0 nT 071 056 LOGGING OFF FREE 32768 PERIOD 1 s DISPLAY SIGNAL LEVELS SOUND OFF ALARM OFF AUTOTUNE GPS AM502 12 6V V0401 0870 47965 0 nT STOP 071 056 REF SET OK OK OK 3s Select Edit Edit Edit Edit Edit Trigger OK OK OK OK OK OK OK ...

Страница 11: ...l be lost When pressing any other key than OK then nothing will be deleted This offers a last chance to leave this menu without any loss of data Back to the Main Menu Pressing OK leaves the logging menu and returns to the main menu Hints regarding Data Logging An indication record will be saved when the periodic measurements are stopped pressing OK or started pressing OK again This allows to split...

Страница 12: ...a map as in the example shown below When the first measurement is taken the tuning can be adjusted again to meet the exact value of the local field If the tuning is not within about 1000nT the measurement values will fluctuate more and more in a random way If the deviation is too large the message TUNING will be displayed When measuring the earth s magnetic field it is not a problem at all to redu...

Страница 13: ...the signal amplitudes on a range between 0 and 255 at the end of the polarization phase first number and after the frequency measurement second number They allow an estimation of the signal quality which is usually influenced by the presence of interference fields and field gradients Bar Graph Difference to a Reference R A simple bar graph will be displayed The left margin means xx nT the right on...

Страница 14: ... is completely switched off not recommended No sounds even no alarms will be played MIN Low volume sounds will be played after each key press and in case of an alarm see 5 6 MIN MEAS As above but with additional beep after each measurement MED Same as MIN but with medium volume MED MEAS Same as MIN MEAS but with medium volume MAX Same as MIN but with maximum volume MAX MEAS Same as MIN MEAS but wi...

Страница 15: ...cular way see chapter 2 1 Note that the auto tuning feature takes about 2 minutes After the optimal tuning value has been determined it appears on the display but is not automatically used The user can decide if it shall be taken press OK key or discarded press or key 5 8 GPS Info Display This display shows information gained from the GPS receiver It includes the GPS deviation of position in meter...

Страница 16: ...nsfer to a computer The included special software program ppmtool is required to copy saved data from the magnetometer flash memory to the computer However no special software is required to get the actual measurement results They are sent over the interface in the following format 01 481253 098 067CR 01 481254 070 042CR 01 481261 076 051CR 02 123456 123 123CR 03 123456 123 123CR 01 481261 076 051...

Страница 17: ...s operated in accordance with this instruction manual and if the instrument is not changed by the purchaser This does not include any refilling of the sensor with fluids which are approved by the manufacturer In the case of any defect please contact Stefan Mayer Instruments Serial number Begin of warranty End of warranty Date signature Stefan Mayer Instruments GmbH Co KG Wallstr 7 D 46535 Dinslake...

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