Series G, H, and I Dry Contact Switch Mechanisms ® Instruction Manual and Parts List DESCRIPTION These switch mechanisms use dry contact switches actuated by a dual magnet rocker arm assembly. Mechanisms are adaptable to most Magnetrol or STI liquid level controls and flow switches. Units are available with a single SPDT switch or two SPDT switches arranged for DPDT operation. MODEL NUMBER DESCRIPTION Magnetrol and STI liquid level controls are identified by a ten digit alphanumeric model numbering system. The last three digits of the model number describe the type of switch mechanism furnished. MODEL NUMBER CONSTRUCTION B75-1B10- Example: Basic model number Tank connection Switch mechanism and enclosure Max. Process Temp. ° F (° C) One Contact Per Enclosure Series G Snap Switch 250° F (121° C) Series H Snap Switch 400° F (204° C) Series I Snap Switch 250° F (121° C) SPDT DPDT SPDT DPDT SPDT DPDT Switch Description Used with Material Code 1 Used with Material Code 2, 3, or 4 NEMA 4 NEMA 7/9 NEMA 4 NEMA 7/9 Polymer Polymer Group B w/Drain Polymer Polymer Group B w/Drain Coated Coated Plymr Ctd Plymr Ctd Coated Coated Plymr Ctd Plymr Ctd GAD GDD HAD HDD IAD IDD GKD GND HKD HND IKD IND GKV GNV HKV HNV IKV INV GUD GXD HUD HXD IUD IXD GAM GDM HAM HDM IAM IDM GKM GNM HKM HNM IKM INM GKW GNW HKW HNW IKW INW GUM GXM HUM HXM IUM IXM SWITCH HOUSINGS REPLACEMENT ASSEMBLIES DESCRIPTION—CAST IRON HOUSINGS Explosion proof housing replacement assemblies are designed for applications in hazardous atmospheric locations, as classified under types NEMA 7 and 9 of the National Electrical Code. Refer to Figure 5. IMPORTANT — When ordering, please specify: 1. Model and serial number of control. 2. Name and part number of replacement kit. NOTE: Consult your local representative on applications to meet NEMA and other codes not covered in this bulletin. CAST IRON HOUSINGS REPLACEMENT ASSEMBLIES Description Replacement Kit Part Number Explosion proof housing cover 6" (152 mm) and housing base, blue cover 89-6582-005 Explosion proof housing cover 6" (152 mm) and housing base with drain, blue cover 89-6582-006 Class I, Group B housing cover 6" (152 mm) and housing base without drain, blue cover 89-6582-008 Gasket 12-2201-249 O-Ring 12-2201-116 DESCRIPTION —CARBON STEEL HOUSINGS Standard carbon steel housing replacement assemblies are designed for applications ranging from general purpose, indoor use, to non-hazardous installations requiring a dust/water/lint, fiber/oil tight enclosure. Refer to Figure 6. ➀ Includes assembly hardware kit 89-6508-001. ➁ Includes base assembly hardware. CARBON STEEL HOUSINGS REPLACEMENT ASSEMBLIES Description Replacement Kit Part Number Standard housing cover 6" (152 mm), NEMA 1 thru 5 & NEMA 12, blue cover 89-6510-003 ➀ Housing base, NEMA 1 thru 5 & NEMA 12 89-6505-003 ➁ Cover assembly hardware, NEMA 1 thru 5 & NEMA 12 Cast Iron Housing Assembly Figure 5 89-6508-001 Carbon Steel Housing Assembly Figure 6 4 REPLACEMENT PARTS CAUTION: When ordering replacement switch mechanisms, be certain to determine color dot on magnet. NEVER replace a mechanism that has a red dot magnet with one that has a yellow dot magnet, and vice versa. Switch Series G H I Contacts SPDT DPDT SPDT DPDT SPDT DPDT Replacement Switch Mechanism With Switch (ES) Yellow Dot Magnet Red Dot Magnet 89-7601-002 89-7601-006 89-7601-010 89-7601-012 89-7601-004 89-7601-008 89-7601-001 89-7601-005 89-7601-009 89-7601-011 89-7601-003 89-7601-007 Replacement Switch Only 89-7101-018 89-7101-018 (2 required) 89-7101-016 89-7101-016 (2 required) 89-7101-019 89-7101-019 (2 required) IMPORTANT – When ordering, please specify: 1. Model and serial numbers of control. 2. Part name and number. 5 IMPORTANT PRODUCT WARRANTY QUALITY ASSURANCE All Magnetrol/STI mechanical level and flow controls are warranted free of defects in materials or workmanship for five full years from the date of original factory shipment. Repair parts are warranted free of defects in materials and workmanship for one year from the date of shipment. Materials, specifications, and contents are subject to change without prior written notice. The quality assurance system in place at Magnetrol/STI guarantees the highest level of quality throughout the company. Magnetrol/STI is committed to providing full customer satisfaction both in quality products and quality service. If returned within the warranty period; and, upon factory inspection of the control, the cause of the claim is determined to be covered under the warranty; then, Magnetrol/STI will repair or replace the control at no cost to the purchaser (or owner) other than transportation. Magnetrol’s quality assurance system is registered to ISO 9001 and Z299.1 affirming its commitment to known international quality standards providing the strongest assurance of product/service quality available. Magnetrol/STI shall not be liable for misapplication, labor claims, direct or consequential damage or expense arising from the installation or use of equipment. There are no other warranties expressed or implied, except special written warranties covering some Magnetrol/STI products. ASSURED QUALITY & SERVICE COST LESS SERVICE POLICY RETURN MATERIAL PROCEDURE Owners of Magnetrol/STI controls may request the return of a control or any part of a control for complete rebuilding or replacement. They will be rebuilt or replaced promptly. Controls returned under our service policy must be returned by Prepaid transportation. Magnetrol/STI will repair or replace the control at no cost to the purchaser (or owner) other than transportation if: So that we may efficiently process any materials that are returned, it is essential that a “Return Material Authorization” (RMA) number be obtained from the factory, prior to the material's return. This is available through Magnetrol/STI's local representative or by contacting the factory. Please supply the following information: 1. Returned within the warranty period; and 2. The factory inspection finds the cause of the claim to be covered under the warranty. If the trouble is the result of conditions beyond our control; or, is NOT covered by the warranty, there will be charges for labor and the parts required to rebuild or replace the equipment. In some cases it may be expedient to ship replacement parts; or, in extreme cases a complete new control, to replace the original equipment before it is returned. If this is desired, notify the factory of both the model and serial numbers of the control to be replaced. In such cases, credit for the materials returned will be determined on the basis of the applicability of our warranty. 1. 2. 3. 4. 5. Company Name Description of Material Serial Number Reason for Return Application Any unit that was used in a process must be properly cleaned in accordance with OSHA standards, before it is returned to the factory. A Material Safety Data Sheet (MSDS) must accompany material that was used in any media. All shipments returned to the factory must be by prepaid transportation. All replacements will be shipped F.O.B. factory. No claims for misapplication, labor, direct or consequential damage will be allowed. 5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com 6291 Dorman Road • Mississauga, Ontario L4V-1H2 • 905-678-2720 • Fax 905-678-7407 Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93 Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317 5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4028 • Fax 630-969-9489 • www.sticontrols.com ©2001 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. Magnetrol and Magnetrol logotype are registered trademarks of Magnetrol International. STI and STI logotype are registered trademarks of Magnetrol International. Performance specifications are effective with date of issue and are subject to change without notice. The brand and product names contained within this document are trademarks or registered trademarks of their respective holders. BULLETIN: 42-684.6 EFFECTIVE: February 1997 SUPERSEDES: February 1991