(2)
PL1 Ultrasonic Test Set
Dukane Corporation
2900 Dukane Drive
St. Charles, IL 60174
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757
MAINTENANCE MANUAL
(3)
PL3 Ultrasonic Test Set
Dukane Corporation
2900 Dukane Drive
St. Charles, IL 60174
(4)
ATS-260 Acoustic Test Set
Datasonics INC.
1400 Route 28A
Cataumet, MA 02534
B. Procedure
S 712-012
(1) If you have a 42A12C test set, do this test of the ULB:
(a)
Put the test set approximately 3 feet from the ULB.
(b)
Set the ON-OFF-GAIN control on the test set to the middle position. 1) Make sure you hear sounds through the earphone on the test
set.
(c)
Set the TUNING CONTROL to 37|1 kHZ.
(d)
Set the INPUT SELECTOR switch to the INT position.
(e)
Make sure the test set operates correctly.
1) Shake a set of keys or some coins in front of the microphone to make sure it operates.
NOTE: This will supply ultrasonic sound.
____
a) Make sure you hear sounds through the test set earphone.
(f) Use any kind of tape to attach a piece of flexible metal conductor to the ULB case and the center of the water switch.
NOTE: This will make a short circuit from the center of
____ the water switch to the outer part of the ULB.
1) Make sure you hear a pulsed tone at 1-second intervals.
(g)
Remove the flexible metal conductor from the ULB case and center of the water switch. 1) Make sure you do not hear a pulsed tone.
(h)
Set the ON-OFF-GAIN control switch to the OFF position.
S 712-013
(2) If you have a PL1 test set, do this test of the ULB:
(a) Use tape to attach a piece of flexible metal conductor to the ULB case and the center of the water switch.
NOTE: This will make a short circuit from the center of
____ the water switch to the outer part of the ULB.
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(b)
Put the end of the test set against the ULB, approximately one inch from the water switch.
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