TB 9-6670-258-35
b. Adjustments
NOTE
For Roadrunner II adjustment, perform step (13) through (17)
below only.
(1) Connect multimeter to gray (+) and violet (-) terminals of TI power supply switch.
(2) Adjust R201 (fig. 2) for 24 V dc as indicated on multimeter.
Figure 2. Weighing kit
power supply -
rear view.
(3) Zero adjust TI cell under test in a no load condition.
(4) Apply a known load to system, preferably 15,000 pounds.
(5) Set TI INITIAL LOAD switch and adjust WEIGHT dial of indicator amplifier
assembly to amount of load applied.
(6) Adjust appropriate TRIM POT (span) (fig. 3) until indicator pointer of TI
indicates a null. A trim pot is provided for each cell. (R)
NOTE
In older models of TI, no span adjustment can be made.
Resistors of the proper value must be installed. If this becomes
necessary, install adjustable resistors of proper nominal value
and repeat b (3) through (6) above.
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