Graco 312497G Proximity Cycle Switches, Description Type Part Number Pins Seal

Accessories

Proximity Cycle Switches

The Proximity Cycle Switches are magnetically operated single throw switches that sense the movement of the divider valve piston when it is cycling. Each proximity cycle switch provides a signal that is used to monitor the sys- tem. There are 3 different types of switches available.

Reed Type Proximity Switch: Can be used with oil applications only for MS, MH and MGO divider valves at pres- sures up to 518 bar (7500 psi) at cycle rates under 60 cycles per minute.

Field Sensitive Magnetic Proximity Switch: Dry contact, ceramic magnet operated switch. Used at pressures that do not exceed 242 bar (3500 psi) at cycle rates up to 200 cycles per minute. Used in MS/MH, MX/MXP and MGO divider valves. An explosion proof version for MS/MH divider valves is available.

Magnetic Operated Proximity Switch: Not limited to valve size. Miniature snap-action switch is tripped by attraction of internal magnet to the moving divider piston. Can be used at pressures up to 518 bar (7500 psi) at cycle rates that do not exceed 150 cycles per minute.

Description	No.	Type			Part Number
	of Pins	Seal	MS	MH		MX	MXP	MGO
Unattached Reed Type (oil only)	1/2 NPT with
10mA @ 120VAC	Leads	O-Ring	563427	563427		NA	NA	NA
	(Explosion
24 mA @ 24VDC
	Proof)
10,000,000 Cycle Life
	3	O-Ring	557741	557741		563476	563476	563970
Field Sensitive Magnetic Type		Gasket*	NA	NA		NA	NA	NA
3-pin and 5-pin (AC only)	5	O-Ring	557746	557746		564399	564399	NA
2A @ 120/240 VAC		Gasket*	NA	NA		NA	NA	NA
	4	O-Ring	557747	557747		558939	558939	563495
4-pin (DC only) 0.1A @ 28VDC
	Pigtail Lead
150,000,000 Cycle Life
	(Explosion	O-Ring	557745	557745		564401	564401	NA
	Proof)
Magnetic Type with LED’s	3	O-Ring	563478	563478		NA	NA	NA
5A @ 24 VDC
	5	O-Ring	563477	563477		NA	NA	NA
10,000,000 Cycle Life
Magnetic Type	3	Gasket*	NA	NA		563486	563486	NA
5A @ 24VDC	5	O-Ring	563484	563484		564400	564400	NA
	Pigtail Lead
5A @ 120/240 VAC	(Explosion	O-Ring	563485	563485		NA	NA	NA
10,000,000 Cycle Life	Proof)
Field Sensitive Magnetic Type
25 mA @ 24VDC	4	O-Ring	563500	563501		NA	NA	NA
M12 x 1, 4-pin (DC only)
10,000,000, cycle life

*Consult your distributor for availability.

42 312497G