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Calibrating and Verifying Performance
Recommended Test Equipment
Functional Verification
Procedure
Chapter 4
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The procedures in this chapter describe how to calibrate and verify the Enhanced
Monitor functions of the Agilent E8402A and E8404A VXI Mainframes. The SCPI
calibration commands are described in this chapter; for details on SCPI
programming, refer to Chapter 3.
Table 4-1 lists the test equipment recommended for calibrating and verifying the
Agilent E840x Enhanced Monitor. Essential requirements for each piece of
equipment are described in the Requirements column. Other equipment may be
substituted as long as it meets the requirements listed.
Table 4-1. Recommended Test Equipment
Instrument
DC Voltmeter
DC Volts to
Frequency Counter
Period measurement
10 mS
±
Temperature Sensor
(optional)
+5Vdc Power Supply
+5 V DC 1.5 amp (max)
(for Enhanced Monitor
RS-232 port)
The functional Verification test for the Enhanced Monitor consists of sending the
command and checking the response. This test verifies that the device is
*TST?
connected properly and is responding to commands. Periodically,
should be executed; these are not included in the
TEST:BLOW
1. Verify that the computer is connected to the Enhanced Monitor through an
RS-232 cable. Ensure baud rate and other parameters are correct. Alternately,
you can send the command through the system commander.
2. Send the
command to the monitor.
*TST?
3. The monitor will return an error code and message. A zero (0) indicates no
errors and the self-test passed. Any non-zero code indicates a self-test failure.
Refer to
for an explanation of the error codes. Executing
TEST:ALL
following a test command, returns a string describing the
TEST:RES:VERB?
result.
Requirements
±
Agilent 34401 DMM
24 V
Agilent E1412 VXI DMM
Agilent 53131 Universal Counter
±
Agilent E1420 VXI Universal
0.1μs resolution
Counter
RTD preferred
°
0.1
C resolution
Calibrating and Verifying Performance
Chapter 4
Recommended Model
and
TEST:TIMe
tests.
*TST?
191
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