Agilent Technologies E1564A user manual E1563A Gain Adjustment

E1563A Gain Adjustment

NOTE The zero adjustment procedure MUST have been recently performed prior to beginning any gain adjustment procedure. Zero adjustment should be performed one time followed by the other gain adjustments. Each range in the gain adjustment procedure for each channel takes less than 5 seconds to complete.

1 Reset the E1563A Digitizer by executing *RST.

2 Set the DC Standard output to 55 mV for the first gain adjustment.

3Connect the DC Standard output across the E1563A "H" and "L" input terminals of channel 1.

4Prepare the E1563A for calibration:

•Set the channel’s range: VOLT<channel>:RANG <range>

•Set calibration source to external: CAL:SOUR EXT

•Send input value: CAL:VAL <input voltage> (see Table E-1, Gain Adjustment Range Input Voltages, for <range> and <input voltage> values)

5Perform the adjustment by sending CAL:GAIN<channel> (adjusts each channel in about 5 seconds).

6Send SYST:ERR? and read the result to verify the calibration command was successful.

7Repeat steps 3 through 6 for ranges and inputs in Table E-1.

8 Repeat steps 2 through 7 for channel 2.

Table E-1. Gain Adjustment Range Input Voltages.

Channel Range	Input Voltage
62 mV	55 mV
0.25V	0.24V
1V	0.95V
4V	3.8V
16V	15V

NOTE Valid calibration input values sent to the digitizer are 0.85 to 0.98 of Full Scale for the range being adjusted. The CAL:VAL <input voltage> parameter must equal the actual input value. For example, if you input 0.9V to calibrate the 1V range (instead of 0.95), send CAL:VAL 0.9 to the digitizer prior to the CAL:GAIN <channel> command.

166 Digitizers Adjustments Appendix E