NI-281E - Ettore Cella SPA

INSTRUCTION MANUALNI-281ERev. 7 11/07WEATHERPROOFFig. 7 - Example of connections Fig. 8 - Example of connectionsEXPLOSIONPROOFFig. 9 - Surface or bracket mounting for 2" pipe(weatherproof and explosionproof instruments)LEGEND1 - Fitting 9 - "T" fitting2 - Drain plug 10 - Three piece fitting3 - Service valve 11 - Blocking joint4 - Piping 12 - Curve5 - Three piece fitting 13 - M5 screws (No. 2)6 - Root valve with drain 14 - Bracket for 2" pipe7 - Process piping 15 - Vertical pipe8 - Three piece fitting 16 - Horizontal pipeNOTE: With gas or vapour process fluid, the instrument mustbe positioned higher than the pipe inlet (see Fig. 8). With aliquid process fluid, the instrument can be positioned higher orlower, indifferently (see Fig. 7 and 8). In this case, during setpoint calibration the negative or positive head must be takeninto account (distance h in Fig.7 and 8).ETTORE CELLA SPA Viale de Gasperi, 48 - Casella Postale (P.O. Box) 96 - I 20010 Bareggio (MILANO) ITALYTelefoni +39 029036.1146/1237/1241 - FAX +39 029036.1331 e-mail: cella@ecellaspa.com