T3D User Manual
030705
Press and hold the
function
switch until the segment next to
speed
lights. Rotate the speed paddle
wheel and the 0 and 1 segments will light indicating the state of the output signal. Spin the
paddle wheel rapidly and the bar graph lights progressively.
Battery test
When the T3D is first turned on, all bar graph segments flash briefly to test the segments,
followed by one segment. The position of this segment displays the battery voltage. If it
illuminates at 6 or lower, change the battery. Replace with an alkaline 9 volt battery similar to
EVER READY #522 or equivalent.
Calibration
To insure the best accuracy the T3D should be re-calibrated if the ambient temperature has
changed by 30 degrees Fahrenheit or more relative to the last calibration. To calibrate the unit
the power must be off and no transducer connected. With the unit in the power off condition,
press and hold the
function
button then press the
power
button. Do not release the
function
button for three seconds. Successful calibration is indicated when all segments go out.
Multi-function connector wiring:
pin
function
1
Speed sensor signal.
2
Speed 5 VDC power.
3
Transducer element.
4-5, 7-8
Ground connections.
6
Temperature sensor.
Pin 1 is at the five o’
clock position as viewed from the
front panel and the pins are counted in a
counterclockwise direction.
Optional Accessories
Test Cable (RCA to Clip Leads) P/N 004-TESTC
8 pin Jack (for making Transducer Adapters) P/N 520-001
Warranty Information
Unit will be repaired free of charge for one year from date of purchase providing there is no
water damage or other evidence of improper use or handling. Purchaser must ship unit prepaid
to address below; EDI will pay the return freight.
For repair ship to:
Electronic Devices, Inc.
3140 Bunch Walnuts Road
Chesapeake, VA. 23322
ATTN: Service Department
Please enclose a note describing the problem.
