User guide

IM 11M06D03-01E-A

Zero Pressure Switch, M1133AR

 ThepressureswitchisusedtoalerttheOperatorviaacontactinputthatthezerogascylinderneedstobere-

placedbeforethecylinderisempty.Therecommendedconnectionistothehighpressuresideofthezerogas

regulator. Refer to Figure 4.1.

Zero Pressure Switch, M1133AR

AdjustableSetPointRanges:   30to575psionfall;50to600psionrise.

DeadBand:     8to60psi

OverRange:     2,500psi

ProofPressure:    3,000psi

StorageTemperature:    -40ºFto180ºF(-40ºCto82ºC)

AmbientTemperature:    0ºFto160ºF(-18ºCto71ºC)

SetPointRepeatability:   1%ofspan

SwitchOutput:     OneSPDT(eitherNCorNO)

ElectricalRating:    Ratedto5ampsresistiveand15ampsinductive(75%PF), 

      at125and120VAC,¼”HP

Enclosure:     Aluminumwithirradiatefinishratedfor100hoursofsalt 

spray

ElectricalConnection:    OneSPDToutput;½”NPTF,5ftcable

PressureConnection:    1/8”NPTM

Mounting:     NPTMpressureconnection

Weight:     12oz(340g)

Approvals:     UL508listed,E42272;CSAC22.2,No14-1987:LR9690