15B+/17B+/18B+ 
Calibration Manual 
10 
Disassembly 
XWWarning 
To prevent false readings, which could lead to possible electric 
shock or personal injury, replace the batteries as soon as the 
low battery indicator () appears. 
To prevent damage or injury: 
•  Install ONLY replacement fuses with the specified 
amperage, voltage, and interrupt ratings. 
•  Disconnect test leads before opening the case or the 
battery door. 
To remove the battery door and battery for adjustments and calibration, see 
Figure 1. 
 
icr01.eps 
Figure 1. Remove the battery 
Performance Tests  
Use the performance tests to make sure the UUT is operating properly and to 
make sure the UUT is accurate. If the UUT fails any part of the performance test, 
repair and/or calibration adjustment are required. See the Calibration sections for 
calibration adjustment. If the UUT still fails to meet the range indicated, see How 
to Contact Fluke. 
Table 2 lists the equipment required for the performance tests. 
Table 2. Required Equipment for Performance Test 15B+ and 17B+ 
Equipment Recommended Model 
Calibrator FLUKE 5522A