Bird Technologies 6091P - Manuale (Pagina 31)

Chapter 5
Maintenance
With basic care, the Calorimeter should provide many years of trouble free operation.
This chapter contains operator maintenance, performance testing, preventive main-
tenance, and cleaning instructions.
Performance Testing
Check for proper equipment operation using the performance test procedures in this
section. Acceptable performance is determined by comparing the test results with the
equipment specifications listed in Chapter 1 - Introduction. If the unit does not pass
the performance test, notify Bird Electronic Corporation.
Equipment Required
Refer to table 3 for a listing of the test equipment required for performance testing.
The equipment parameters listed are the minimum specifications applicable to the
test equipment models other than those listed. Valid Calorimeter tests and measure-
ments are critical and depend largely on the accuracy of the test equipment used.
Test Data Sheet
A test data sheet is provided on page 21. Photocopy the data sheet. Record perfor-
mance test data in the spaces provided. Maintain completed test data sheets for re-
cords of equipment performance and testing.
Performance Test
Setup
Set up the Calorimeter and test equipment by following the instructions below. Refer
to figure 12.
1. Connect the cable assembly from the Calorimeter to the ac power me-
ter.
2. Connect the power meter to the ac power source.
Calorimeter
Performance Test
Perform the calorimeter performance testing as follows:
CAUTION
Do not apply RF power to the load without proper coolant flow. Failure to keep coolant at
proper flow rate can result in serious damage to the equipment.
1. Turn power on to Calorimeter and test equipment. Allow a 30 minute
warm-up period for all electronic equipment. While the equipment is
19
Equipment Type Suggested Model Critical Equipment Specifications
AC Power Source Elgar 501SL with PIP
9012
Output - 10 to 200 watts @ 50 ohms
Stability - greater than 0.1%
THD - less than 0.25%
Frequency - adjustable to 60, ±1 Hz
AC Power Meter YEW 2533 Range - 10 to 200 watts
Accuracy - 0.1%
Automatic Net-
work Analyzer HP 8753 with 85046A ±0.2 dB accuracy for return loss
measurements
Cable Assembly Bird P/N 6091-099 Test connections as shown in figure
12
Table 3
Test
Equipment
Specifications