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5-3 UT-115 ADJUSTMENT PROCEDURES
• PREPARATION
Enter the adjustment mode when adjusting the UT-115.
■ REQUIRED TEST EQUIPMENT
DC power supply 1
DC power supply 2
Frequency counter
Oscilloscope
EQUIPMENT GREDE AND RANGE EQUIPMENT GREDE AND RENGE
Output voltage : 5.0 V DC
Current capacity : 1 A or more
Output voltage : 8.0 V DC
Current capacity : 1 A or more
Frequency range : 0.1–100 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : DC–400 MHz
Measuring range : 0.01–10 V
■ ENTERING THE ADJUSTMENT MODE
Connect J301, pin 14 to GND, then the UT-115 enters adjustment mode.
NOTE: Exit from the adjustment mode to disconnect J310, pin 14 from GND before the UT-115 adjustment is fihished
■ CONNECTION
Power supply
8 V DC / 1 A
Power supply
5 V DC / 1 A
J301, Pin 14
Entering adjustment mode
• UT-115 BOTTOM VIEW
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