YOKOGAWA DP harp EJX Series - Changing the Process Connection

<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specied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gure
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
Vent/Drain 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
IMPORTANT
When installing a process connector, make
sure that no foreign matter has adhered to the
seal surface of the gasket (or O-ring) before
assembly. If foreign matter adheres, it may lead
to leaks. In the case of O-rings, it is known that
the sealing performance can be improved by
applying grease. If grease is not used, make
sure that no foreign matter is attached.