![]() ![]() The switch may be designed to make contact either on pressure rise or on pressure fall. MurCal provides experienced application and product support, before and after the sale.įor California customers: Prop 65 WARNING: This product may have been manufactured with or uses components that can expose you to chemicals which are known to the State of California to cause cancer. Murphy oil pressure gaugeswith switches that activate on low pressure A pressure switchis a form of switchthat operates an electrical contactwhen a certain set fluid pressurehas been reached on its input. How an oil pressure switch works How to Use a Multimeter for Beginners - How to Measure Voltage, Resistance, Continuity and Amps Ratchets And Wrenches HOW TO TEST COOLANT TEMPERATURE SENSOR. MurCal is an Authorized Distributor of FW Murphy products. This instrument is a combination pressure indicating gage with an adjustable low and high limit switch. Suitable for engines or electric motors with appropriate Murphy magnetic switch or transformer relay assembly.Ī=1/4 NPT Process Connection, Drawn C-Tube, through 1,000 psi (6.89 MPa) , Grade A Phosphor Bronze Tube (Brass Tip, Silver Brazed), Brass Socket.ĮX=Explosion-proof: Swichgage® enclosed within explosion-proof case Class I, Div. The OPLC-A-300 is a surface mounting 4.5' (114 mm) Pressure Swichgage, with a range of 0-300 psi (0-2.07 MPa) 0-20 bar. High and low pressure limit contacts are visible and adjustable. Combination indicating gage and critical pressure limit switches. Surface mount (with low limit lockout switch) 316 stainless steel bourdon tube. 68 MPa) pressure range (dual scale) 4 1/2 in (114 mm) dial gage. An SPST toggle switch is provided to override the low limit contact for equipment startup. OPLC-S-3000 pressure swichgage by Murphy. Pointer closure against either of the adjustable contacts completes the pilot-duty circuit. Adjustable high and low limit, ungrounded contacts are used to operate alarm, shutdown or start-stop circuits. The OPLC is a surface mount, indicating pressure gage and switch. Limit contacts have self-cleaning motion to enhance electrical continuity. Adjustable limit switches are accessible from the front of the Swichgage instrument. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or the start/stop of engines and electric motors.Īll versions feature a 4-1/2 in. The OPL-series pressure Swichgage instruments are combination pressure indicating gages with adjustable low and high limit switches. The OPLC-A-200 has a weatherproof die cast aluminum case, a clear polycarbonate lens, a 1/4 NPT process connection, a grade A phosphor bronze bourdon tube (brass tip/silver brazed) and a brass socket.OPLC-A-30-EX: 4.5" Pressure Swichgage® surface mount, w/ low limit lockout Brass Bourbon Tube 0-30 psi 120 VAC explosion-proof case (05700693) As is generally understood, a pressure sensor converts the measured pressure into a current value, which is normally transmitted with 0 bar. The complexity increases when a local digital indicator for the measured value is to be integrated into the circuit, in the given example, a 2-wire instrument. Suitable for engines or electric motors with appropriate Murphy magnetic switch or transformer relay assemblies. Integration of pressure sensors into the PLC. An SPST toggle switch is provided to override the low limit contact for equipment start-up. Inside the OPLC-A-200, pointer closure against either of the adjustable contacts completes the pilot-duty circuit. The limit switch is accessible from the front of the gage and the contacts have a self-cleaning motion to enhance electrical continuity. The limit switch can be wired directly to electric pilot circuits to operate alarms and/or shutdown engines and electric motors. Exercise the switch a few times - pump full pressure and back to zero. ![]() Connect the device to measure the switch output status. Connect the pressure source and the pressure calibrator to the switch input. This instrument is a combination pressure indicating gage with an adjustable low and high limit switch. Here’s a condensed list of steps in pressure switch calibration: Depressurize & disconnect for safety. The OPLC-A-200 is a surface mounting 4.5" (114 mm) Pressure Swichgage®, with a range of 0-200 psi (0-1.38 MPa).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |