ADS Environmental Services Model 3600 530002 A2 - Manual (Page 76)

5-2 ADS 3600 Flow Monitor O&M Manual
Installing the EMU
The following information serves as a guideline for installing an EMU. Carefully
follow these guidelines so that the installation conforms to all NEC (national electrical
code) guidelines for installations into Class 1, Division 1, Groups C and D hazardous
areas.
Observe all local regulations and requirements for installing a pavement box, such as
planning permits required for a pavement box, local regulations regarding buried
cables, and local regulations regarding inspection of installations.
z Select a location for the EMU.
z The preferred location is within a customer supplied above ground housing.
z An alternative location, which is inside a flush-mounted pavement box,
requires that you select a location with telephone access. Locate the manhole
and the phone source. Determine if cabling must be in the conduit or if it can
be buried directly. Measure the length of communication cable needed. For
detailed information about communication cable installation, see page 5-8.
z Locate all underground services and lines. Have service locators mark any
underground pipes, wiring, etc. For detailed information about underground
services and lines, see page 5-3.
z Dig a trench from the manhole and from the phone source to the pavement box
location (ADS recommends using a subcontractor for this task). Lay the
cables in place. For detailed information about using pavement boxes and
trenching for cables, see page 5-4.
z Install the pavement box by first digging a hole, then setting the box in place
with the cables running from the bottom of the box up through the gravel
bedding. For detailed information about installing a pavement box, see page 5-
5.
z Install the EMU by placing bricks or cinder blocks inside the pavement box to
hold the EMU off the bottom of the box. For detailed information about
installing the EMU, see page 5-8.
z Install the communication cable in the manhole. For detailed information about
installing the communication cable, see page 5-8.
z Wire the communication cable and telephone cable into the EMU. For detailed
information about wiring the cables, see page 5-12. See page 5-15 for
information about “Direct Connection Communication (SCADA System).”
z Contact an ADS certified technician to set the monitor to the correct baud rate.
For detailed information about setting the options switch, see page 5-15. In
addition, have the ADS certified technician set the multiplexor switch
correctly. For detailed information about the multiplexor switch, see page 5-
20.