Goulds Pumps 3296M - IOM - Manual (Page 87)

3296 M Group 6/05
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High Temperature Protection
The temperature circuit monitors the containment shell skin temperature and shuts down the pump once a
predetermined temperature level is reached. The temperature set point should be adjusted to alarm at a temperature
of 30° F (17° C) above the anticipated pumpage temperature (for most applications) or should be set at a
temperature predetermined to cause a pump problem due to the unique characteristics of the liquid being pumped
(problems such as recirculation, liquid vaporization or polymerization). This set point should not exceed the
maximum continuous operating temperature for the magnetic material supplied in the pump. If neodymium magnets
were supplied the maximum temperature set point is 125 C (250° F). For Samarium Cobalt magnets, the maximum
temperature set point is 220° C (428° F). (REF GTP system manual adjustment procedure, Step 4).
Vibration Transmitter (Optional)
The vibration monitor circuit detects vibration and shuts down the pump once a predetermined vibration level is
reached. (REF 3296 instruction F). With the meter selector switch set to "VIBRA LEVEL" (Vibration Level), the
vibration reading in IN/SEC is displayed on the meter.
The transmitter is not installed at the factory in order to minimize the risk of shipping damage. It, therefore, must be
installed by the user - refer to Vibration Monitor Option in this manual as shown.
Adjust meter span to read the desired full scale reading, usually 1.00 (Refer to GTP system manual adjustment
procedure Steps 5 and 6). Adjust the decimal select switch as required to make this adjustment.
Set the limit to trip at a vibration level 50% higher than the baseline vibration, but not to exceed .5 IN/SEC. The
baseline is the vibration level shown on the monitor during operation of a new properly installed pump. If the
baseline exceeds .3 IN/SEC, determine cause of vibration and correct.
NOTE: This is an analogue 4-20 mA circuit and is, therefore, compatible with any sensor that produces a 4-20
mA signal. If the vibration transmitter is not purchased, this circuit is available to the user to measure another
parameter as desired. Be sure to relabel face of GTP controller to reflect new function.
Liquid Leak Detector (Optional)
This detector senses a leak in the containment shell by detecting pressure in the bearing frame bell housing. A
pressure switch preset to trip at 10 PSIG on increasing pressure is supplied. Two pressure switches are available,
NEMA 4 and NEMA7. (REF 3296 pressure switch leak detector options in this manual)..
The switch is not installed at the factory in order to minimize the risk of shipping damage. It, therefore, must be
installed by the user - Again, refer to the pressure switch section.
For the NEMA 4 switch, connect the wire labeled "common" to terminal No. 9 on the GTP System controller and
the wire labeled "N.O." (Normally Open) to terminal No. 14. The N.C. (Normally Closed) wire is not used and
must be taped. For the NEMA 7 switch, connect in the same way except, in addition, run the green wire to ground
per applicable electrical codes.