Transcription of Combination pH/ORP Two-Wire Transmitters - Emerson
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Model 1181 pH/ORPC ombination pH/ORP Two-Wire TransmittersInstruction ManualPN 51-1181 2003 DANGERHAZARDOUS AREA INSTALLATIONINTRINSICALLY SAFE INSTALLATIONT ransmitter/Sensor is notIntrinsically in hazardous area locations must becarefully evaluated by qualified on site safety per-sonnel. To secure and maintain an intrinsically safeinstallation, an appropriate safety barrier must beused and the installation must be performed inaccordance with the governing approval agency(FM, CSA or BASEEFA/ CENELEC) installationdrawing requirements (see Section ).EXPLOSION-PROOF INSTALLATIONS ensors are not explosion-proof and must beinstalled in a non-hazardous location. If the sensormust be installed in a hazardous location an intrin-sically safe system must be implemented. To main-tain the explosion-proof rating of the transmitter ,the following conditions must be met: Discontinue power supply before removingenclosure covers.
i MODEL 1181 pH/ORP QUICK START-UP QUICK START-UP I. Set up 1. For non-hazardous areas or bench testing, set-up the transmitter & sensor as illustrated in Figure A.
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