The EC80 Flow Processor provides a state-of-the-art interface for today’s flow
meters. With multiple frequency inputs and one temperature input in a compact
design, the flow processor is compatible with single and dual rotor turbine flow
meters for precise calculation and output of flow rate or accumulated flow.
The linearization, viscosity and density correction features improve flowmeter
accuracy to the highest levels available today. Our newest feature allows the flow
processor, with a Cox Auto Viscosity Turbine Meter, to automatically measure and
compensate for kinematic liquid viscosity.
SAFETY INFORMATION
The installation of the flow processor must comply with all applicable federal,
state and local rules, regulations and codes.
Failure to read and follow these instructions can lead to misapplication or misuse
of the flow processor, resulting in personal injury and damage to equipment.
Safety Symbol Explanations
DANGER
INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED WILL RESULT
IN DEATH OR SERIOUS PERSONAL INJURY.
INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED COULD
RESULT IN DEATH OR SERIOUS PERSONAL INJURY.
INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED COULD
RESULT IN MINOR OR MODERATE PERSONAL INJURY OR DAMAGE TO
PROPERTY.
UNPACKING AND INSPECTION
Upon opening the shipping container, visually inspect the product and applicable
accessories for any physical damage such as scratches, loose or broken parts, or
any other sign of damage that may have occurred during shipment.
OTE:NIf damage is found, request an inspection by the carrier's agent within 48
hours of delivery and file a claim with the carrier. A claim for equipment
damage in transit is the sole responsibility of the purchaser.
Page 5 CXX-UM-03060-EN-01April 2019
Operating Principle
RTD
OPERATING PRINCIPLE
The EC80 Flow Processor accepts all types of square wave pulse inputs. Fully
compensated and linearized volumetric flow rates, totals and temperature are
examples of flow parameters that can be viewed through serial communications,
included software program or an embedded rate indicator (depending on
product configuration).
The EC80 Flow Processor can use a universal viscosity curve to compensate for
varying liquid temperature and viscosity conditions. It can also use
Strouhal-Roshko algorithms for a more comprehensive compensation method,
taking into consideration all the secondary effects to which the meter is sensitive
like the expansion and contraction of the meter bore diameter. The flow processor
extracts the density value of a known liquid from a stored temperature/density
table and multiplies by the volumetric flow rate to get the inferred mass flow rate.
Measure
Temperature
Counts
Lookup Table
Temperature
vs Counts
Temp
Temp
Rotor A
Rotor B
Lookup Table
Viscosity vs
Temperature
Measure
Frequency
Measure
Frequency
Ro
v
Fa
Fb
act
Fsum
v
1+2(alpha)(deltaT)
Fsum
Fa+Fb
Figure 1: Flow Processor Calculations
Ro
ref
Lookup Table
Strouhol vs
Roshko
St
ref
1-3(alpha)( delta T)
St
act
Calculate
Flow Rate
Q
supply
April 2019CXX-UM-03060-EN-01Page 6
Installation
INSTALLATION
Precautions
• Turn off power supply prior to making any connections to the flow processor.
• Verify that the power supply is rated to deliver enough current for
your application.
• Do not submerge or place flow processor in moisture-prone environments.
• Do not place the flow processor in close proximity to high voltage and/or
current carrying lines. It is sensitive to Electro-Magnetic Interference (EMI).
• Verify that all terminations at the flow processor are free from frayed wires and
terminate with proper insulation at terminal blocks.
• Before applying supply power, make sure the power setting is not in excess
of the flow processor’s rating. A setting over the rating will cause the flow
processor to fail and not be covered under the warranty.
• Tighten all terminal block connections with reasonable firmness. Do not
over-tighten the screw down terminals.
• Use adequately gauged wires for transferring signals to and from the flow
processor printed circuit board (PCB).
• Make sure the PCB will not be exposed to excessive shock.
• Make sure the PCB will not be exposed to heat that exceeds the temperature
rating of the flow processor electronics.
• Pay careful attention to the grounding scheme for your application. Use low
impedance grounds, common to all electronics.
• If the PCB is exposed, be careful that debris, loose conductor strands or any
other foreign matter does not come in contact with terminals and/or electrical
components and connections.
Page 7 CXX-UM-03060-EN-01April 2019
Installation
C
(NOT INCLUDED)
DETAIL N
Typical Congurations
RM1
ABLE
* CONFIGURATION SHOWN
IS TYPICAL FOR RF INPUT.
RM2
PT02E-12-8P
Figure 2: RM1 Configuration
REMOVE ANODIZATION
TO EXPOSE ALUMINUM
2X 1.42
2.4
4X.17
2X 4.92
CABLE
(NOT INCLUDED)
PT02E-12-14P
2X .33
CABLE (NOT INCLUDED)
PT02E-12-8P
4X .16
* CONFIGURATION SHOWN
IS TYPICAL FOR RF INPUT.
Figure 3: RM2 Configuration
CABLE (NOT INCLUDED)
3
N
2X 2.50
.55
PT02E-12-14P
2X 6.37 3.74
3
April 2019CXX-UM-03060-EN-01Page 8
XP1
2X 4.7
B-9541 CABLE WITH 6907K13
CORD GRIP. (NOT INCLUDED)
* CONFIGURATION SHOWN
IS TYPICAL FOR RF INPUT.
Figure 4: XP1 Configuration
Installation
Page 9 CXX-UM-03060-EN-01April 2019
Input
INPUT
The flow processor has inputs for turbine meters (both single and dual rotor) and
temperature. The flow processor calculates mass flow rates based on volumetric
flow with temperature compensation.
Analog Input
You can configure the analog input for different types of temperature transducers.
The flow processor is supplied with a 10 kΩ thermistor but can be
jumper-configured for 0…5V DC, 0…10V DC or 4…20 mA temperature
transducers. Consult the factory if you need to incorporate the analog input for
reasons other than temperature acquisition. See “Installation” on page7 and
“Wiring and Jumpers” on page12 to select a particular temperature transducer.
You can configure all flow processor outputs for different parameters, and can
do so independently of other channels. Use the IFC15 software to program the
following output parameters:
Frequency
• Linearized Flow Rate (Volumetric or Mass)
• Raw Frequency Rotor A
• Raw Frequency Rotor B
• Raw Sum; Frequency A + Frequency B (Dual Rotor Applications)
• Total Flow (Accumulation)
Analog
• Linearized Flow Rate
• Temperature
B
C
A
F
E
D
H
L
M
K
J
N
Figure 6: Output diagram
Function/Signal
PWR + AA
PWR RETURN BB
RS-485 + CC
RS-485 –DD
RAW A OUT EE
RAW B OUT FF
GND HH
FREQ 1 OUT JJ
FREQ 2 OUT KK
GND LL
ANALOG 1 VOLTAGE OUT MM
ANALOG 2 VOLTAGE OUT NN
AGND PP
ANALOG 4-20 mA RETURN –PP
ANALOG 4-20 mA OUT + RR
RM1RM2
R
P
Pinout
Page 11 CXX-UM-03060-EN-01April 2019
Wiring and Jumpers
JMP
EF4295 TERMINAL BLOCK LAYOUT
PGM PORT
JMP
JMP
WIRING AND JUMPERS
RM1
J2
J1
-C
-B
-A
JMP-1
J5
J4
EC80 Flow Computer to PT02E-12-14P
EC80 B-9541 CABLEPT02E-12-14P
SCALING UNITS FUNCTION/SIGNAL J1 J4 J5 WIRE COLOR PINOUT
N/A
N/A
N/A Hz RAW A OUT 1 ORG E
N/A Hz RAW B OUT 2 RED/WHT F
N/A Hz GND 3 ORG/BLK H
N/A Hz GND 6 GRN/BLK L
N/A N/A AGND 7 BLU/BLK P
N/A N/A ANALOG 4-20 mA RETURN – 3 RED/BLK P
VDC+ PWR + 1 RED A
VDC- PWR RETURN 2 BLK B
N/A RS-485 + 5 WHT C
N/A RS-485 –6 WHT/BLK D
Hz FREQ 1 OUT 4 GRN J
Hz FREQ 2 OUT 5 GRN/WHT K
V ANALOG 1 VOLTAGE OUT 9 BLU M
V ANALOG 2 VOLTAGE OUT 8 BLU/WHT N
mA ANALOG 4-20 mA OUT + 4 BLK/WHT R
April 2019CXX-UM-03060-EN-01Page 12
Wiring and Jumpers
Flow-Meter to EC80 Flow Computer
B-9541 WIRE COLOR FUNCTION/SIGNAL J2 J5 PT02E-12-8P PINOUT
WHT RF PICKOFF A 1 A
WHT RF A RETURN 2 B
BLU RF PICKOFF B 3 C
BLU RF B RETURN 4 D
GRN RF PICKOFF Q 5 N/A
GRN RF Q RETURN 6 N/A
ORG RTD EX+ 4 E
ORG RTD + 3 F
ORG RTD –2 G
ORG RTD EX- 1 H