Gas Media Process Connection - Michell Instruments Easidew PRO XP User Manual

INSTALLATION
2.2

Gas Media Process Connection

The Easidew PRO XP transmitter can be mounted in any orientation for the following:
• inserted into a pipe or duct
• inserted into a fl ow-through sample block (optional).
It can be operated up to 45 MPa (450 barg/6500 psig) when fi tted correctly.
If the installation is NOT into a Michell sample block please take note of the following
to ensure correct installation is undertaken.
1. Ensure the O-ring is located correctly within the O-ring groove of the
process connection and that there is no contamination or debris on its
exposed surfaces.
2. Ensure that the sealing face of the transmitter mounting is normal to the
thread (0.08mm/25mm (0.003"/1")run).
3. Ensure that the O-ring mating sealing surface is 0.8 Ra (0.8μm) or better.
4. Ensure that the mating connection thread is cut to the correct size (¾"
UNF x 16) with a minimum chamfer of 1mm (0.04").
5. Screw the transmitter into the sample block and, whilst holding the fl ats
on the block, tighten the seal nut to 40Nm (29.5 lbf-ft) to compress the
O-ring.
6
The following procedure must be carried out by a qualifi ed
engineer to ensure the safe operation of the pressure system.
O-ring
Figure 7 Transmitter Direct Mounting
Easidew PRO XP User's Manual
large clamping nut
seal nut
97442 Issue 5, May 2018