7600 Series Transducers - Accusonic 8510+ series Reference Manual

B-8 Accusonic Model 8510+ Series Flowmeter

Locking Ring is Tightly Installed Check that lock washers (spacers) are installed between
both sets of mating faces of the two halves of the locking ring. Verify that the hardware is tight
and that the lock washers are compressed flat.
29. Remove the jacking mechanism assembly from the transducer's feedthrough assembly.
30. Reconnect the E-O connector and screw in the union nut.
Caution: Before leaving the transducer, be certain that the locking pin is fully engaged and that
the union nut and the E-O connector are installed as shown in Figure 10-1 on page B-12.
This completes removal and assembly of the 7601 Series transducer.

7600 Series Transducers

The transducers are contained in a special mount which allows for removal of the transducer without
dewatering the pipe or disturbing the alignment of the unit. A special tool must be used.
The following is a step-by-step procedure for removal, cleaning, and reinsertion of the transducer.
DANGER:
PRESSURE FROM THE LIQUID IN THE PIPE. ANY ATTEMPT TO REMOVE A
TRANSDUCER IN ANY OTHER MANNER THAN OUTLINED BELOW MAY
CAUSE SERIOUS INJURY TO PERSONS IN THE GENERAL AREA.
Caution: The 7600 transducers are equipped with a padlock locking rod to prevent
tampering with the transducer when the proper tool is not in place. Never unlock the
padlock unless the transducer removal tool supplied by Accusonic has been installed as
described in the following procedures. Never leave an unlocked transducer unattended for
even a short period of time.
Caution: Always work from the side of the transducer feedthrough, so that if an error or
acomponent failure results in the transducer blowing out of its seat, you are not in the exit
trajectory. While working on the transducer, keep the trajectory area clear of other
personnel.
Warning: Read through the entire procedure below to be certain you understand it
completely. IF YOU DO NOT UNDERSTAND ANY PORTION OF THIS
PROCEDURE, STOP FURTHER WORK, DO NOT CONTINUE!
Note: Transducers are position-specific. Always reinstall a transducer in the same
location from which it was removed. When replacing one transducer with a new one,
double check that the part number of the new unit exactly matches the number of the old
one.
Tools Required

7661-L or 7661-S series transducer jacking mechanism (order from Accusonic)

Medium (8 inch) crescent wrench (or a 1/2 inch (13mm) open-end wrench and a 1 inch (25mm)
open-end wrench)

Key to the transducer padlock (all padlocks shipped by Accusonic use the same key)

1/8 inch (3mm) hex (Allen) wrench
THE TRANSDUCER IS PROBABLY UNDER CONSIDERABLE