Tektronix P6042 PROBE, Инструкция по эксплуатации

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Calibration—Type P6042
RI 05 C100
R165 R180
— 16
R84
R93 R18
R24 R17 R12 R16
+ 16 — 16
VOLT ATTEN
H.F. OUTPUT
TEMP
VOLTS VOLTS
TEST
POINT
BAL
DC LEVEL
COMP
Fig. 6-3. Location of internal adjustments and test points.
CALIBRATION
1. Check Power Supply Resistances
a. Using an ohmmeter, measure the resistance to ground
at the +16 volt test point (see Fig. 6-3 for location of test
point). Check for ≥300 Ω. Connect positive probe to test
point.
b. Check the resistance to ground at the —16 volt test
point (see Fig. 6-3) for ≥200 Ω. Connect negative probe to
test point.
2. 16 Volts (R165) Check
O
Regulation
a. Connect the P6042 power cord to the variable autotrans­
former, set to 115 volts (230 volts) and turn the P6042 POWER
on. Allow five minutes for warm-up time at +25°C.
b. Connect the 1x probe to the +16 volt test point.
Switch
Channel A input coupling to DC and Display to A-Vc.
c. Adjust R165 to position the trace on the center graticule
line.
6-5