Designed for sensing either resistance or fluid level to control the SPST relay. Primarily used for cutoff protection of sumps, pumps and heaters in high or low water conditions.
Integrated circuits, tested components and current design technology guarantee maximum reliability and savings. Ideal for OEM applications that require LOW COST and HIGH QUALITY performance.
PUMP DOWN-output remains ON until the absence of liquid (HIGH RESISTANCE) on probe circuit.
PUMP UP-output remains ON until the presence of liquid (LOW RESISTANCE) on probe circuit.
Detection of level conditions in Tanks, Sumps, Reservoirs, Wells or Pools. Vending Machines, Water Softeners, Dishwashers, Coffee Makers, Ice Machines. Food, Dairy, Brewing and Chemical Processing. Metal to Metal Contact Detection in Conveyor and Robotic Applications. Leak Detection in Ducts, Sub-Floors, etc.
Probes, Float, Flow, Pressure Switches Thermostats, Push-button Actuators, Temperature, Pressure, Humidity.
APPROVAL: U/L RECOGNIZED
WARRANTY: TWO YEARS or 100,000
operations
PROBE CIRCUIT: AC (LOW CORROSION) or
Dc (LONG DISTANCE)
HOLDING CIRCUIT: Built-in for differential
levels or manual reset
OPERATING MODE: Either Direct or Inverse
via program wire
INTEGRATED CIRCUIT RELIABILITY:
no transistors or SCR's
PROBE SHARING: Two controls can SHARE
One probe EX. pump-up with
low level alarm.
Operating Mode: with resistance of 47,000 OHMS or LESS across the sensing circuit Direct - load relay closes Inverse - load relay opens Input: Standard - 120 Volt AC, 50/60 Hertz +- 10% Optional - 240 Volt AC, 50/60 Hertz - 12 to 24 Volt AC 50/60 Hertz - 5 to 24 Volt DC Power: 1.2 VA, 0.6 Watts energized - 0.12 Watts standby Load Contact: SPST Normally Open silver cadmium oxide Contact Rating: 10 AMP resistive load or 1/3 HP at 120 VAC 6 AMP resistive load at 240 VAC or 28 VDC Contact Life: Electrical - 100,000 operations at rated load Mechanical - 50,000,000 operations Sensing Circuit: Standard - 17 VAC open circuit, 170 microamps short circuit Optional - 22 VDC open circuit, 220 microamps short circuit Holding Circuit: BUILT-IN (for single point ON/OFF level control, connect upper probe & common without holding circuit) Sensitivity: Standard - 47,000 OHMS - Fixed Optional - 1000 OHMS to 1 MEG OHM Fixed Response Time: Approximately 1.0 seconds (Contact factory for additional time delays) Connections: 1/4 inch quick connect tab terminals Mounting EASY two point mounting with #8 screws Temperature: Operating Temperature O to 70 degrees Centigrade Weight: 5.6 OZ net / 7.8 OZ shipping Other: Circuit immune to EMI and RFI interference Approval: U/L · Underwriters Laboratory Recognition
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