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Operation Manual for

SCU1 Signal Conditioning Unit

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Summary of Contents for SCU1

Page 1: ...Operation Manual for SCU1 Signal Conditioning Unit...

Page 2: ...1 Back Panel Connections and Controls 7 5 2 Front Panel Displays and Controls 8 6 Installing the SCU1 10 6 1 Location of the Equipment 10 6 1 1 Environmental Precautions 10 6 1 2 Mounting 10 6 1 3 Ori...

Page 3: ...Controls 13 7 4 2 Gain Controls 13 7 4 3 Low Pass Filter LPF 14 7 4 4 High Pass Filter HPF 14 7 5 Using the SCU1 Outputs and Displays 15 7 5 1 Unconditioned and Conditioned Outputs 15 7 5 2 Display Pa...

Page 4: ...aution is ignored Identifies items that must be disposed of safely to prevent unnecessary damage to the environment Note Provides useful supporting information on how to make better use of your purcha...

Page 5: ...via the following outputs unconditioned analogue outputs signals direct from the magnetometer conditioned analogue signals the magnetometer signals modified by the SCU1 analogue conditioning digital d...

Page 6: ...t 3 Gain Finally the DC adjusted output signal can be amplified by a variable gain stage to produce the conditioned output signal Offset and gain are controlled independently for the X Y and Z channel...

Page 7: ...ter Output Type Selector Switch The SCU1 can be used with magnetometers that have unbalanced single ended outputs or balanced differential output signals This switch sets the SCU1 to operate in unbala...

Page 8: ...HPF Control The SCU1 can apply high pass filtering to the magnetometer output signals This control sets the 3dB point frequency for the HPF 9 Magnetometer Supply Voltage Control This control sets the...

Page 9: ...et voltage is subtracted Table 1 Offset switch functions 12 Offset Coarse Controls one for each channel 13 Offset Fine Controls one for each channel These rotary controls set the offset DC voltages ap...

Page 10: ...ckets 6 1 3 Orientation The SCU1 can be orientated horizontally or vertically 6 1 4 Temperature To minimise temperature induced drift effects position the SCU1 in a constant ambient temperature out of...

Page 11: ...ometer Supply Voltage Before switching the equipment ON set the appropriate voltage for your magnetometer using the front panel control Figure 2 item 9 For all Mag648 and Mag 03RC magnetometers use th...

Page 12: ...ometer with a range of 60 T and an analogue output of 3V has a scale factor of 20 To convert voltage to field strength 1 Divide the output voltage by the gain control setting then 2 Multiply by the sc...

Page 13: ...e adjust to set an approximate level and a fine adjust to achieve the exact offset level desired A polarity switch selects whether the offset is added to or subtracted from the magnetometer output or...

Page 14: ...ing AC fields or very slow changes to a background DC field In these situations any DC signal present would normally be removed by using offset This allows the level of gain to be set as high as possi...

Page 15: ...C content of the signals need to be measured e g with an oscilloscope meter or an A to D system or when a voltage output is required for connection for example to a feedback or control system Note The...

Page 16: ...artington com or telephone the Bartington Instruments service team on 44 0 1993 706565 Fault Possible cause Solution Panel meters are off Power fault Check SCU1 is connected to a mains supply Check th...

Page 17: ...truments for calibration at the recommended intervals Refer to the Calibration Certificate for further details 9 3 Cleaning WARNING Disconnect the electrical supply before performing any cleaning oper...

Page 18: ...NSTRUMENTS Page 18 of 19 OM2441 1 10 End of Life Disposal This product electrical and electronic equipment should not be placed in municipal waste Check local regulations for disposal of electronic pr...

Page 19: ...ton Instruments Limited in the following countries United Kingdom Australia Brazil Canada China European Union India Japan Norway and the United States of America Bartington Instruments Limited 5 Thor...

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