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IOM Single Case BiRotor Plus R06
Installation
8.1 Installation
1. The instrument should be mounted on a secure
foundation. Provisions should be made for verti-
cally mounting the meter to ensure stability.
2. The process piping should not place any undue
strain on the instrument.
3. Precautions should be taken to ensure that ther-
mal fl uid explansion does not raise the line pres-
sure above the maximum working pressure of the
instrument.
4. Process piping must be clean and free of any for-
eign matter.
5. A strainer should be installed upstream of the
instrument.
6. An air eliminator should be installed upstream of
the instrument if the process fl uid is expected to
contain entrained air.
7. A
fl ow limiting valve should be installed down-
stream of the instrument, this will maintain a back
pressure on the instrument and prevent excessive
fl ow rates.
8. Isolation valves should be located at either ends
of the instrument run and a bypass section in-
stalled. This will facilitate ease of component re-
moval, when required, and reduce loss of product.
8.2 Installing the Instrument
1. Remove the inlet and outlet protection covers.
2. Install the instrument into the pipe work using
suitable hardware as specifi ed in the local codes
and regulations. Ensure that the connections are
made tight and torqued to the correct values.
3. Connect the instrument wiring, refer to Figures 9-1
and 9-2. Cable entry into the electrical enclosure
is by two 3/4-14 NPT female threads.
4. Use wiring appropriate for the location and
operating conditions. Wiring glands and/or
conduits must conform to local electrical codes
and regulations if wiring is to be installed in a
hazardous area.
NOTE:
For additional requirements on installation please
refer to Chapter 2, Essential Instructions, at the
beginning of this manual.
If the instrument is being installed with additonal
accessories, the instructions for those accessories
should be read and understood before continuing with
the installation. The output signal from the pream-
plifi er, if one is fi tted, can be altered to interface with
most electronic accessories. This is accomplished by
the use of jumpers on the circuit board. Refer to
Figure 8-1 for their confi gurations.
The UMB housing may be rotated in 90° increments
to accomodate the mounting of accessories. If the
UMB housing is removed for any reason, care must
be taken to disconnect the sensor wires to prevent
sensor damage. It is essential that the four retaining
screws used to secure the UMB housing to the meter
body be torqued to 55 in/lbs.
Figure 8.1 Wiring connections
