• Monitors Submersible Pump Seals for Leakage
• Single or Dual Channel for Monitoring 1 or 2 Pumps
• Three Adjustable Sensitivity Ranges
• Optional Fixed Sensitivity Setting Available
• Optional Low-Profile Adjustment Knob
• Uses industry-standard 8 & 11 pin octal sockets

800-238-7474
www.macromatic.com

SFP Series Pump Seal Failure Relays are designed to monitor the shaft seals of submersible pumps. A resistive-measuring probe is installed in the pump seal cavity. If the seal starts to leak, contaminating fluid enters the seal cavity, lowering the resistance between the internal probe & the common connection. When the resistance drops below the user-adjustable sensitivity set-point of the relay, the output relay energizes & the LED turns ON. The relay output can be used to give an alarm indication of a leaking seal. These products will automatically reset when the fault condition clears.

Three output configurations are offered: an 8 pin SPDT single channel relay & an 11 pin DPDT single channel relay to monitor a single pump, and an 8 pin dual channel relay (with 2 SPNO contacts) to monitor two pumps. In addition to the three adjustable sensitivity ranges offered, relays with fixed values are available--contact Macromatic for more information (minimum quantities apply). An optional low-profile adjustment knob to prevent accidental change of setting is also available.

CONFIGURATION	INPUT VOLTAGE	SENSITIVITY SETTING	PRODUCT NUMBER *	WIRING SOCKET
SINGLE CHANNEL 8 Pin SPDT	120VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP120A025 SFP120A100 SFP120A250	8 Pin Octal 70169-D DIAGRAM 163
	240VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP240A025 SFP240A100 SFP240A250
SINGLE CHANNEL 11 Pin SPDT	120VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP120B025 SFP120B100 SFP120B250	11 Pin Octal 70170-D DIAGRAM 162
	240VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP240B025 SFP240B100 SFP240B250
DUAL CHANNEL 8 Pin (2) SPNO	120VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP120C025 SFP120C100 SFP120C250	8 Pin Octal 70169-D DIAGRAM 164
	240VAC	10K to 25KΩ 4.7K to 100KΩ 10K to 250KΩ	SFP240C025 SFP240C100 SFP240C250

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* To order a product with a low-profile adjustment knob, add the suffix “L” to the Product Number, i.e., SFP120A100L.