(September 2007). 2.0 GENERAL The Argus Pressure Switch (automatic or manual reset) is designed to make or break an electrical circuit (an electric motor, a gas engine, etc.) upon sensing either ‘high’ or ‘low’ flow line pressure. Installation, operation, and maintenance of Argus Pressure Switches shall comply with procedures as described in this manual.
United States for Class I, Group D, Hazardous Locations (Division 1 and 2), Dual Seal 5) NEMA 4 and 7 enclosure 3.0 APPLICABLE STANDARDS Argus Type 'F' Pressure Switches are designed to meet the following standards: 1) ABSA: CRN No. OF2161.2134 2) ASME: B31.3...
(Refer to Argus Pressure Switch brochure for more information). On request, Argus technicians can attach the Argus Wiring Harness assembly to the Pressure Switch in the factory. This eliminates the need to remove the Cap when installing an Argus Pressure Switch in the field.
Switch Housing. It is not necessary to wrench tighten the Cap to ensure a seal. CAUTION: Do not over-tighten the Cap, as damage may occur. 15) Once installation is complete, the Argus Pressure Switch should be operated two (2) or three (3) times to verify the factory settings. 7.0 OPERATION 7.1 OPERATING INSTRUCTIONS 1) Once installation is complete, the Argus Pressure Switch will trip automatically.
Switch trips off at the appropriate set point. If the set point is incorrect, the operator should adjust it to the original setting. (See 7.2 Pressure Setting). c) The Pressure Switch may also be taken off the line and sent to an Argus Service Center for testing and adjustment.
Switch may then be sent to an Argus Service Center for assessment and/or repair. 6) Argus recommends that due to the sensitivity of the Microswitch the customer should consider carrying one (1) spare Microswitch sub-assembly in inventory for every ten (10) Pressure Switches in the field.