Table of Contents
Advertisement
Calibrating and Verifying Performance
Recommended Test Equipment
Functional Verification
Procedure
Chapter 4
The procedures in this chapter describe how to calibrate and verify the Enhanced
Monitor functions of the HP 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 HP
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
Frequency Counter
Temperature Sensor
(optional)
+5Vdc Power Supply
(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,
TEST:BLOW
should be executed; these are not included in the
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
*TST?
command to the monitor.
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
TEST:ALL
TEST:RES:VERB?
result.
Requirements
±
DC Volts to
24 V
Period measurement
±
10 mS
0.1 s resolution
±
°
0.1
C resolution
+5 V DC 1.5 amp (max)
for an explanation of the error codes. Executing
following a test command, returns a string describing the
Calibrating and Verifying Performance
Chapter 4
Recommended Model
HP 34401 DMM
HP E1412 VXI DMM
HP 53131 Universal Counter
HP E1420 VXI Universal Counter
RTD preferred
TEST:TIMe
*TST?
tests.
and
189
Advertisement
Table of Contents
