Doc# 0296-0018 • REV R (July 2017) Page 37 of 61
FIG. 4-2 ADJUSTING THE REFERENCE OUTPUT (R113)
Step 71. Calibraon of the TTS is complete.
Step 62. Set the TTS frequency to 100 Hz and the GIR (G Internal Reference) amplitude to 4.00 G’s.
Step 63. The SF reading should be between 49.8 and 50.2 mV/eu.
Step 64. If the reference output is not within tolerance, use an allen wrench and remove the adjustment
plug on the front panel of the TTS. (See Fig. 4-2)
Step 65. Use an adjustment tool or a small screw driver and turn adjustment pot (R113 - Reference
Output Adjust) unl the TTS is within tolerance. (See Fig. 4-2)
Step 66. Replace the adjustment plug.
Step 67. Disconnect the cable from REF OUTPUT connector and press the up arrow buon unl the BIT
MODE screen appears.
Step 68. Connect the loop back cable to the TTS input.
Step 69. Press the RUN buon to perform the BIT MODE test.
Step 70. Make sure all tests are passed. If any tests fail, troubleshoot and recalibrate the TTS.
NOTE: Refer to table 4-1 for a list of bit test code descripons and values.
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