Flowmeter Installation; Physical Installation; Electrical Installation; Power Wiring - Accusonic 8510+ series Reference Manual

4-2 Accusonic Model 8510+ Series Flowmeter

Flowmeter Installation

Physical Installation

The flowmeter should be mounted on a location so the cable run from the transducers to the unit does not
exceed 300 feet or 100 meters without the approval of Accusonic. In addition, the unit requires a power
connection, as well as connections to any pressure transmitters and to the site process control system. The
instrument should be mounted vertically and should be attached to a wall or mounting panel capable of
safely supporting 50 pounds (25 kg). Use 3/8 inch (10 mm) lag screws or carriage bolts.
If an external PC is used, provide a suitable table or shelf while in use. If the cabinet is to be mounted out-
doors, it should be protected by a sun shield on the top and the south facing side.

Electrical Installation

Caution! When drilling the conduit holes for the electrical installation, be sure to protect the circuit cards in the
unit.
Note: To reduce the possibility of malfunction of the processor due to electro-magnetic interference radiated
from the various cables, all wiring brought into the unit should be routed to its terminals by the shortest
reasonable route. Spare cable should be looped in the conduit and trunking outside the flowmeter console,
or left in a customer-supplied and installed junction box in close proximity to the flowmeter console.
All wiring is brought into the flowmeter console through customer-supplied conduit and customer-supplied
conduit connectors. All wiring, with the exception of the transducer cables or Accusonic supplied level
measurement cables, is to be customer-supplied. This may include:
a.c. or d.c. power supply mains to the electronic unit.

Transducer cabling (may require more than one penetration)

Level sensor inputs if required.

4-20mA Analog outputs if required

Alarm and Totalizer relay outputs if required.

Digital outputs if required.

Check that the input voltage is within the voltage ratings for the electronics and heater (if equipped) as
specified on the flowmeter's label, Figure 4-1 (following), prior to applying voltage to the flowmeter.

Power Wiring

Power consumption for the electronics is less than 40 VA.
Use #16 AWG or #14 AWG (1.5 mm
The unit requires direct mains wiring and should be installed with a separate main power cutoff switch near
the instrument, in compliance with the National Electrical Code (or IEC 60079-14 clauses).
Route power mains wiring into the unit through the appropriate feedthrough to the mains terminal block,
and connect as shown in Figure 4-1 (following). Be sure to follow appropriate local codes and practices,
and to attach a proper earth ground to the instrument.
2
minimum).