Instruction manual ni-221e, Weatherproof explosionproof – WIKA MAB User Manual
Page 6
INSTRUCTION MANUAL
NI-221E
Rev. 1 11/02
ETTORE CELLA SPA Viale de Gasperi, 48 - Casella Postale (P.O. Box) 96 - I 20010 Bareggio (MILANO) ITALY
Telefoni +39 029036.1146/1147/1237/1241 - FAX +39 029036.1331 E-mail: [email protected]
WEATHERPROOF
EXPLOSIONPROOF
Fig. 7 -
Example of connections
Fig. 8 -
Example of cpnnections
Fig. 9 -
Example of mounting
Montaggio a parete
Montaggio su staffa da 2”
NOTE With gas or vapour process fluid, the instrument
must be positioned higher than the pipe inlet (see Fig.
8). With a liquid process fluid, the instrument can be
positioned higher or lower, indifferently (see Fig. 7 e 8).
In this case, during set point calibration the negative or
positive head must be taken into account. (distance h
in Fig.7 and 8).
LEGEND
1 - Fitting
2 - Drain plug
3 - Service valve
4 - Piping
5 - Three piece fitting
6 - Root valve with drain
7 - Process piping
8 - Three piece fitting
9 - “T” fitting
10 - Three piece fitting
11 - Curve
12 - Blocking joint
13 - M6 screws (No4)
14 - Bracket for 2” pipe
15 - Horizontal pipe
16 - Vertical pipe
Surface mounting
2” pipe mounting