CiDRA SONARtrac Quick Start - Manual (Page 11)

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Press the ‘ENTER’ key to start the sensor test. Each of the
sensors will be tested. If any sensor does not PASS, repeat the
test. Individual sensor faults will be displayed on the display and
along with the recommended corrective action.
•
Perform any recommended corrective measures and perform a
Sensor Test. Repeat as necessary
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Press the ‘EXIT’ key to return to ‘Operational Mode’.
3.2.1.2 Gain
An electronic ‘Gain’ (amplification) is applied to the sensor outputs.
Transmitter based gain control functions are provided through three
sub-menus – ‘AUTOSET GAIN’, ‘CHECK/SET GAIN’, and ‘TEST
GAIN’. Gain adjustments should be made to the system when the
process is operating “normally”.
The sensor head pre-amplifier gain sub-menus is accessed as follows:
3.2.1.2.1 Autoset Gain
‘Autoset Gain’ performs an automatic test and adjustment of the pre-
amplifier gain setting. It automatically cycles through pre-determined
gain settings in order to find the optimal gain setting based on the flow
conditions at that time.
Autoset Gain is accessed as follows:
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Press any key except ‘EXIT’ on the keypad to enter the ‘Menu
Mode’.
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The ‘Basic Config’ menu is displayed on Line 1 of the display.
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Press the ↓ key to scroll to the ‘Diagnostics’ menu on Line 1.
Press the ‘ENTER’ key to access the options available under that
menu.
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‘Sensor Check’ will appear on Line 2 of the display.
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Press the
↓ key to scroll to ‘Gain’ on Line 2 of the display.
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Press the ‘ENTER’ key to access the options available under that
menu.
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‘Autoset Gain’ will appear on Line 3 of the display.
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Press the ‘ENTER’ key and ‘Autoset Gain’ will start. The gain will
automatically be set to its optimal setting.
If the message reads “Insufficient Gain Detected…” or “Excessive
Gain Detected…” rerun the test. If that message is repeated,
contact CiDRA Technical Support.
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Press the ‘EXIT’ key to return to ‘Operational Mode’.
Copyright © 2007 CiDRA Corporation Page 3-3
20984-01 Rev 01