Graco 406824C User Manual

GENUINE GRACO PARTS AND ACCESSORIES

Pulse Count Kits
24B796 and 24B798

Husky ® 1050 and Husky® 3300 Diaphragm Pumps

Kit 24B796

for pumps with a polypropylene or conductive polypropylene center section and air valve.

Kit 24B798

for pumps with an aluminum center section and air valve.

Important Safety Instructions

Read all warnings and instructions in the
Air-Operated Diaphragm Pump Repair/Parts
manual. Save all instructions.

Ref. Description Qty.

101

REED SWITCH ASSEMBLY 1

102

SCREW 1

LEFT RIGHT

Pin 1

(not used)

406824C

EN

Pin 4

Pin 3

Pin 5

Common

Air valve

housing

T

H

G

I

R

T

F

E

L

101

102

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

406824 Rev, C October 2012
Copyright 2009, Graco Inc. is registered to ISO 9001

ti14538a

4

5

1

3

2

Pin 2

(not used)

ti14539a

See Instructions on reverse.

Installation

Use these kits with customer-supplied fluid manage­ment or inventory tracking systems. Each kit includes a
module with two reed switches and a mounting screw.

1. Attach the reed switch module to the air valve.

2. Attach an M12, 5-pin female connector (customer
supplied) to the reed switch to interface with cus­tomer wiring. See illustration on front.

Specifications

Type......................................................... Normally open

Maximum power ......................................

Maximum voltage..................................... 170 VDC

Initial contact resistance (Maximum) ....... 0.2 Ohms

Contact Capacitance (Typical)................. 0.2 pF

10 W

When properly connected, the reed switches detect the
position of the air valve. Each reed switch is momentary
and closes only when near the air valve magnet. The
right reed switch is closed when the air valve is in the
right position, and the left reed switch is closed when the
air valve is in the let position. When a reed switch is
opened then closed, or closed then opened, one com­plete pump cycle has occurred.

When connecting, note that either reed switch can
detect one complete pump cycle. Both can be used,
however, to detect half-cycles for greater precision or for
system redundancy.

2 406824C