Goulds Pumps 3196 i-FRAME - IOM - Manual (Page 60)

Commissioning, Startup, Operation, and Shutdown
i-ALERT™ Condition Monitor routine operation
Measurement interval
This table shows the measurement intervals for the condition monitor during normal operation and when
the monitor is in alarm mode.
Mode Measurement interval
Normal operating mode Five minutes
Alarm mode Two minutes
When the condition monitor measures a reading beyond the specified temperature and
vibration limits, the appropriate red LED flashes. After the process or pump condition that
causes the alarm is corrected, the condition monitor returns to normal mode after one normal-
level measurement.
Alarm mode
When the condition monitor is in alarm mode, you should investigate the cause of the condition
and make necessary corrections in a timely manner.
Magnetic device considerations
Be careful when you use magnetic devices in close proximity of the condition monitor, such as
magnetic vibration-monitoring probes or dial indicators. These magnetic devices can acciden-
tally activate or deactivate the condition monitor resulting in improper alarm levels or loss of
monitoring.
Pump operation precautions
General considerations
CAUTION:
• Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the
suction side since this can result in decreased performance, unexpected heat generation, and
equipment damage.
• Do not overload the driver. Driver overload can result in unexpected heat generation and equipment
damage. The driver can overload in these circumstances:
• The specific gravity of the pumped fluid is greater than expected.
• The pumped fluid exceeds the rated flow rate.
• Make sure to operate the pump at or near the rated conditions. Failure to do so can result in pump
damage from cavitation or recirculation.
Operation at reduced capacity
WARNING:
Never operate any pumping system with a blocked suction and discharge. Operation, even for a brief
period under these conditions, can cause confined pumped fluid to overheat, which results in a violent
explosion. You must take all necessary measures to avoid this condition.
CAUTION:
• Avoid excessive vibration levels. Excessive vibration levels can damage the bearings, stuffing box
or seal chamber, and the mechanical seal, which can result in decreased performance.
• Avoid increased radial load. Failure to do so can cause stress on the shaft and bearings.
• Avoid heat build-up. Failure to do so can cause rotating parts to score or seize.
• Avoid cavitation. Failure to do so can cause damage to the internal surfaces of the pump.
58 Model 3196 i-FRAME Installation, Operation, and Maintenance Manual