Return Material Authorization form

for Shaft Encoders

Since December 1, 2001, AMASS Data Technologies Inc does not accept returns without a valid RMA number. Proceed as follows:
  1. Read the QUICK CHECKS table below for common issues and solutions.
  2. If the problem remains unresolved fill out the form below as appropriate.
  3. Click on the Submit button.
  4. ADT will contact you via e-mail to attempt to resolve the problem. An RMA number will be assigned if the problem remains unresolved.

QUICK CHECKS

ISSUE POSSIBLE SOLUTION
“The sensor is not tracking the shaft position at all! Reading remains at the ‘offset’ setting!” Verify that the parameter ‘scale’ is not set to ‘0.000’. “Scale” must be equal to the circumference of the pulley. Use ‘aQ1!’ to verify as per manual or use the LED display. Set the ‘scale’ using ‘aS1+SCALE!’, or use the display.
“The sensor appears to be drifting from the correct level readings!”
  1. Verify that the ‘scale’ is equal to the circumference of the pulley being used, typically 0.375m. This can be verified with the ‘aQ1!’ command. We have seen people accidentally change the ‘scale’ to some other value which will cause erroneous readings. Set the ‘Scale’ with the ‘aS1+SCALE!’ command. See the manual.
  2. Check that the 9V battery backup is at least 7V, if not replace it. During power interruptions the 9V battery maintains continuous shaft position tracking. If this battery is low the sensor may be resetting itself to the ‘offset’ every time there is a power glitch.

    3. Verify that the algebraic sign of the “scale” corresponds to the configuration of your installation. REMEMBER, use ‘+’ if clockwise rotation corresponds to rising water levels. Otherwise use ‘-‘.
“Cannot communicate with the sensor!”
  1. Verify the sensor address. You can do this using ‘?I!’ if there are no other SDI-12 sensors on the bus. This can also be done via the LED display (with ‘/D’ option).
  2. Check connections (white = SDI-12 data, red = +12VDC, black = ground).

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Contact Name:

Telephone:

Fax:

E-mail:

Company:

Shaft Encoder Model:

Quantity:

Describe the problem or reason for return:

If the sensor responds to commands type the following and enter the corresponding responses:

Enter: 'aI!'. Response:

Enter: 'aR8!'. Response:

Enter: 'aQ0!'. Response:

Enter: 'aQ1!'. Response:

Enter: 'aQ4!'. Response:

Enter: 'aQ5!'. Response: