3 changing the process connection, Changing the process connection -2 – Yokogawa EJA110E User Manual

Page 24

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background image

<4. Installation>

4-2

IM 01C25B01-01E

F0403.ai

Vertical pipe mounting

(Process connector upside)

Vertical pipe mounting

(Process connector downside)

Transmitter

mounting bolt

Transmitter

mounting bolt

Mounting bracket

Mounting bracket

U-bolt nut

U-bolt nut

U-bolt

U-bolt

50 mm(2-inch) pipe

50 mm(2-inch) pipe

Figure 4.3

Transmitter Mounting (Vertical Impulse

Piping Type)

4.3 Changing the Process

Connection

The transmitter is shipped with the process

connection specified at the time of ordering. To

change the process connection, the drain (vent)

plug must be repositioned.
To reposition a drain (vent) plug, use a wrench to

slowly and gently unscrew it. Then, remove and

remount it on the opposite side. Wrap sealing tape

around the drain (vent) plug threads (*1 in the figure

below), and apply a lubricant to the threads of the

drain (vent) screw(s) (*2 below). To tighten the drain

(vent) plugs, apply a torque of 34 to 39 N·m (3.5 to 4

kgf·m). Process connector bolts are to be tightened

uniformly to a torque shown in table 4.1.

Table 4.1

Torque

Model

EJ110

EJ120

EJ130

EJ310

EJ430

EJ440

C capsule

D capsule

Torque(N·m)

{kgf·m}

39 to 49 {4 to 5}

49 to 59

{5 to 6}

F0404.ai

*1
*2

Drain/vent plug

Note: For a horizontal impulse

piping type, moving the

process connectors from

the front side to the

back cannot be made.

Vertical impulse piping type

Horizontal impulse piping type

Bolt

Process

connector

gasket

Figure 4.4

Changing Process Connection

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