24 VDC POWER SUPPLY
This compact power supply has Universal input voltage
for Worldwide industrial integration with primary
switched-mode regulator technology. It features low
output ripple 24 VDC and a 240 Watt / 10 Amp (shown
below) or a 120 Watt / 5 Amp output rating. The output
is electronically protected against overloads and short
circuits.
|
|
|
|
| |
|
|
ULTRA-SONIC SENSOR 0-10 VDC / 4-20ma
This device emits a signal at a narrow beam angle
downwards into a tube extending the depth of the tank.
When the signal encounters an object (the fuel), it
bounces back to the emitting device that has a built-in
receiver. The elapsed time between emission of the
signal and its return is converted into an electrical
voltage, which then is changed to inches of air space
from tip of emitter to fuel level.
Important to note - nothing (inductance probe, or such)
touches the fuel. Hence, there are no erratic and low
voltage level readings caused by gum-up or other
undesirable phenomenon which are inherent to similar
out-dated systems. Periodic cleaning and re-adjustment
of probes and the system is not necessary.
|
|
|
| |
|
|
LOGIC CONTROLLER—CPU
This rugged, compact module is “brains” of the Evolution
system. Logic procedures direct various action to be
initiated based upon input from the Ultra-Sonic level
sensor or external sensing switches. This module
formats and directs the display of the variable content of
the LCD screen pages and to the Communications
Module (below) as actions and conditions occur.
A standard RS232C port is built into every CPU
controller module. This port is rated for a maximum of
50 ft. and is dependant on cabling, electrical noise, etc.
We recommend using a RS485 communication module
described below. Modbus protocol (slave) is standard.
If you need additional ports, a different protocol, or
distance, you may add a Communications expansion
Modules (shown below).
|
|
|
| |
|
|
COMMUNICATIONS MODULES
This optional strong communications module directs
Logic Controller output downstream to your in-house
system. The system can accommodate up to a total of
seven communication ports. Acting as a slave to
in-house building management systems, Modbus
protocol is standard.
This optional module provides RS485/RS232 for data
link or modem communication extending distance rating
beyond the 50 foot range to 656 feet.
|
|
|
|
| |
|
|
OPERATOR INTERFACE TERMINAL
An LCD touchscreen provides a series of graphical data
presentations in vivid color to monitor and control the
Evolution system. Illuminated “soft” push buttons
replace physical mechanical switches to allow an
operator to input data to control the operation of the fuel
system. Illuminated graphic lamps communicate on/off
normal states and report alarm conditions.
|
|
|
