< Marsh Bellofram Group of Companies < Diversified Electronics < Special Controls < SPM Series
SPM Seal Failure Alarm
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SPM Seal Failure Alarm
  • Monitors Shaft Seal of Submersible Pump Motor
  • Connects to Conductive Probe in Seal Cavity
  • Adjustable Sensitivity
  • LED Indicates Output Relay
Product Detail:
The ATC Diversified SPM Series Single channel seal failure module is a specialized control for monitoring the shaft seal of a submersible pump motor. A leak is detected by sensing the position of a resistive float switch installed in the seal cavity. When the resistance drops below the sensitivity rating, the output relay energizes and the LED illuminates. When the fault condition clears, the output relay resets automatically. SPM Series Seal Failure Alarm
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SPM
120
AAA
Sensitivity
470
470 Ω ±10% Fixed
470 Ω to 10K Ω ±10% Adjustable
10K
4.7K Ω to 100K Ω ±10% Adjustable
100K
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Specifications:
Control Voltage 120 VAC, 50/60 Hz
Switch Voltage 9 VDC
Isolation 2500 Volts
Power Required 2 VA
Duty Cycle Continuous
Sensitivity 470 Ω ±10% Fixed
470 Ω to 10K Ω ±10% Adjustable
4.7K Ω to 100K Ω ±10% Adjustable
Contact Rating DPDT, 10 A @ 250 VAC Resistive, 360 VA Inductive
Response Times Operate 15 ms (approximately)
Release 8 ms (approximately)
Life Expectancy Mechanical 10,000,000 Operations (Minimum)
Electrical 50,000 Operations @ Rated Load
Indicators Red LED illuminates when leak is detected
Temperature Rating Operate -4° to 131°F
(-20° to 55°C)
Storage -40° to 185°F (-40° to 85°C)
Enclosure 11-Pin plug-in “A” style enclosure
Weight 8 oz.