Appendix B: Calibration
2606B System SourceMeter® Instrument Reference Manual
B-12
2606B-901-01 Rev. B / May 2018
The maximum common-mode voltage (voltage between LO and chassis ground) is 250 VDC.
Exceeding this value may cause a breakdown in insulation, creating a shock hazard that
could result in personal injury or death.
The input/output terminals of the 2606B System SourceMeter
®
instrument SMUs are rated for
connection to circuits rated Measurement Category I only, with transients rated less than
1500 V peak above the maximum rated input. Do not connect the 2606B terminals to CAT II,
CAT III, or CAT IV circuits. Connection of the 2606B terminals to circuits higher than CAT I
can cause damage to the equipment or expose the operator to hazardous voltage.
Hazardous voltages may be present on all output and guard terminals. To prevent electrical
shock that could cause injury or death, never make or break connections to the 2606B while
the instrument is powered on. Turn off the equipment from the front panel or disconnect the
main power cord from the rear of the 2606B before handling cables. Putting the equipment
into standby does not guarantee that the outputs are powered off if a hardware or software
fault occurs.
Calibration adjustment cycle
Perform a calibration adjustment at least once a year to make sure the instrument meets or exceeds
its specifications.
Recommended adjustment equipment
The table below contains the recommended equipment for the calibration adjustment procedures.
You can use alternate equipment as long as that equipment has specifications equal to or greater
than those listed in the table. When possible, test equipment specifications should be at least four
times better than corresponding 2606B specifications.
Recommended calibration equipment
Description
Manufacturer/Model
Accuracy
Digital Multimeter
Keithley Instruments
Model 2002
or Agilent 3458A
DC voltage
1
90 mV:
0.9 V:
5.4 V:
18 V:
±8 ppm
±5 ppm
±4 ppm
±6 ppm
DC current
2
90 nA:
0.9 A:
9 A:
90 A:
0.9 mA:
9 mA:
90 mA:
0.9 A:
±430 ppm
±45 ppm
±25 ppm
±23 ppm
±20 ppm
±20 ppm
±35 ppm
±110 ppm