15B & 17B
Calibration Manual
18
17B Adjustment
Refer to Table 6 for the 17B adjustment procedure, Figure 4 for the adjustment points,
and Figure 5 for temperature adjustment connections.
Table 6. 17B Adjustment
Step
Test
Function
Switch Button Potentiometer 5520 UUT Test Specifications
1
mV dc
Adjustment
M
NO R18 350 mV dc 349.9 to 350.1 mV dc
For step 2, if the display reads between 34.91 and 35.09 V dc, no adjustment is necessary.
2
Volts dc
Adjustment
V NO R18 35 V dc
If the display reads less than
34.91, adjust R18 to
34.91 to 34.92 V dc.
If the display reads more than
35.09 Adjust R18 to
35.08 to 35.09 V dc.
3
Volts AC
Adjustment
v NO R8 35 V 50 Hz
If step 2 V dc calibration is less
than 35 V dc, adjust R8 to
34.91 to 34.92 V ac.
If step 2 V dc Cal is equal to or
greater than 35 V dc, adjust R8
to 34.99 to 35.01 V ac.
Set Calibrator to STANDBY.
4
Capacitance
Adjustment
c NO R11 350 nF 349.0 to 351.0 nF
Set Calibrator to STANDBY.
For Step 5, place the Surface Thermocouple Probe directly onto the UUT COM jack screw and note the
UUT display reading in °C.
5
Temperature
Offset
Adjustment
d NO R49 0 V OPR Match Fluke 51 Reading
Note: In step 6, wait until the reading has settled before pushing r. Failure to do so can result in a
reading that is outside the adjustment range limits.
6
Temperature
Gain
Adjustment
d r -NO
t icon ON
-0.2 to 0.2 °C
7 d - R35 2.436 mV dc
t icon ON
59.9 to 60.1 °C
RESET Calibrator
8OFF OFF
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