Performance Verification - HP E1563A User Manual

Performance Verification

Performance
Verification
Programs
Zero Offset
Verification
148 HP E1563A and E1564A Verification Tests
The procedures in this section are used to test the electrical performance of the
digitizer using the specifications in Appendix A of the HP E1563A and E1564A
User's Manual as the performance standards.
The Performance Verification Tests are recommended as acceptance tests when the
instrument is first received. The performance verification tests should be repeated
at each calibration interval following acceptance. If the HP E1563A or HP E1564A
digitizer fails performance verification, adjustment or repair is needed.
Performance verification program source code is provided written in ANSI C. They
are located on the driver CD and are titled E1563VER.C and E1564VER.C.
This procedure is used to check the zero offset performance of the
HP E1563A or HP E1564A Digitizer. The digitizer's internal short is applied to the
H (HI) and L (LO) input terminals of the channel being tested using the
DIAG:SHORt <channel> command.
1. Check the "Test Conditions" section at the beginning of this chapter.
2. Execute the command DIAG:SHOR1 ON to enable the internal short across
the H and L terminals of channel 1.
3. Select each range in the order shown in Table D-2. Compare the
measurement results to the appropriate test limits shown in the table.
Table D-2. Zero Offset Verification Test Points.
INPUT
internal
H-L short
DIAG:SHORt
command
4. Repeat steps 2 and 3 for channel 2 on the E1563A 2-Channel Digitizer and
channels 2 through 4 on the E1564A 4-Channel Digitizer changing the
channel number in the DIAG:SHORt<channel> ON command.
HP E1563A / Error from
HP E1564A nominal
Range
± 15 µV
62 mV
± 61 µV
0.25 V
± 244 µV
1 V
± 976 µV
4 V
± 3.9 mV
16 V
± 15.6 mV
64 V
± 62.5 mV
256 V