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The Ground Level Checker Option is a factory installed option which when assembled to a typical top mounted Omnitrol unit provides ground level or tank top checking. Through the application of this design, a positive check can be made by operating a balanced lever arm mechanically linked to the switch mechanism of the control without interrupting normal operation or exposing the operator and/ or system to hazardous conditions.
These devices are intended to be a primary source of high (single stage) or high-high (dual stage) level alarm control and are often used in conjunction with the tank gauging equipment.
FEATURES
• Checks operation of tank safety switches • For use with 610/710, 621/721, 613/713, 616/716 • Ground level or tank top operation • Applicable to cone roof or fl oating roof tanks, and internal floating pans
• Designed for maximum pressure of 25 PSI • Checker is supplied with 10 feet of stainless steel beaded chain. Maximum 60 feet optional.
APPLICATIONS
Protection of storage tanks in: • Marketing terminals • Tanks adjacent to inland waterways • Pipe line storage tanks • Tanks in Petro/Chemical plants
700 Series with Ground Level Checker Option
SPECIFICATIONS Linkage Box and Cover Internal Components O-Ring Gaskets
Linkage Arm
Counter Weight Operating Chain
Mounting Connections
Maximum Safe Working Pressure and Temperature
Aluminum
Stainless Steel Viton (Std.) Buna-N Steel Steel
Stainless Steel
Cast Iron (250 lbs. Class fitting), 2-½" NPT 25 PSI at 100°F