Contrec 515 User manual

Model 515 Flow Computer
Operation Manual
Application FA02
Add or Subtract Flow Computer
for
Mass Applications
18 June 2017

Model 515 Flow Computer - Operation Manual
© Contrec Limited 2017
The instructions given herein cover the general description, installation, operation and maintenance of the subject
equipment. Contrec Limited. reserves the right, without prior notice, to make engineering refinements that may not
be reflected in this manual.
Should any questions arise which cannot be answered specifically by this manual, they should be directed to
Contrec Limited for further detailed information and technical assistance.
Contrec Limited will not accept any liability for either direct or consequential damages resulting from the use or
misapplication of the contents of this manual.
Part of the software embedded in this product is eCos - Embedded Configurable Operating System, a trademark of
Red Hat. Portions created by Red Hat are Copyright © 1998, 1999, 2000 Red Hat, Inc.
(http://www.redhat.com). All rights reserved
The software in this product was in part provided by Red Hat and any express or implied warranties, including, but
not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no
event shall the author be liable for any direct, indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business
interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including
negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such
damage. Contrec Limited
Riverside, Canal Road, Sowerby Bridge,
West Yorkshire HX6 2AY UNITED KINGDOM
Tel: [phone] Fax: [phone]
Email: [email protected]
Website: www.contrec.co.uk
Contrec Systems Pty Ltd
5 Norfolk Avenue Ringwood, Melbourne 3134 AUSTRALIA
Tel: [phone]
Email: [email protected]
Contrec - USA, LLC
916 Belcher Drive Pelham AL 35124 USA
Tel: [phone] Fax: [phone]
Email: [email protected]
Publication No: 515-FA02-OM - 18 June 2017

515 FA02 - 18 June 2017 iii
Safety Notice
The information in this safety notice is for the prevention of injury to personnel and
damage to the instrument.
The manufacturer assumes no liability for injury or damage caused by misuse of the
instrument or for modifications made to the instrument.
Qualified Personnel
The instrument must be installed, operated and serviced by persons who have been properly
trained and authorised. Personnel must read and understand this manual prior to installation and
operation of the instrument.
Static Hazard
The 500 series flow computer uses high speed CMOS circuitry which is sensitive to static
damage. The user should observe accepted safety practices for handling electronic devices,
especiallyduringservicing.Oncetheunitisinstalled,groundedandinterconnected,thechances
of static damage are greatly reduced.
Voltage Hazard
Before connecting power to the instrument, ensure that the supply voltage for the AC or DC
input is suitable. The AC voltage rating is as stated on the instrument rating plate. Personnel
should take all due care to avoid electric shock. For safe operation it is essential to connect a
mains safety earth to the A.C. power inlet. Do not operate at altitudes above 2000m.
Welding Hazard
Do not perform electric welding in close proximity to the instrument or its interconnecting
cables. If welding in these areas must be performed, disconnect all cables from the instrument.
Failure to do so may result in damage to the unit.
Moisture Hazard
To avoid electrical faults and corrosion of the instrument, do not allow moisture to remain in
contact with the instrument.
Disconnection Device
When powered from a mains supply this unit requires the provision of a suitable mains isolation
device to be accessible near to the installed instrument.
515 FA02 - 18 June 2017

iv 515 FA02 - 18 June 2017

v
1 Introduction
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Analog Input Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Displayed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Main Menu Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Isolated Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Limitations of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Specifications
Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Installation
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Frequency Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Analog Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Logic Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4-20mA Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pulse Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Control Relays (Alarms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RC Network for Interference Suppression . . . . . . . . . . . . . . . . . . . . . . 16
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RS-485 Port (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Earthing and Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 Operation
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Default Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Front Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Main Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Peak Flowrates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Model Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5 Instrument Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Calibration View Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contents
515 FA02 - 18 June 2017

vi 515 FA02 - 18 June 2017
Calibration Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing the Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Calibration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Time Settings and Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
General Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6 Communications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Hardware Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Simple ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Requests Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Instrument Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Corrupted or Invalid Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Modbus RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
List of Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Printer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Types of Printouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Printer Data Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Appendix A Glossary
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Appendix B Model Numbers
Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Custom Version Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Application Information Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Appendix C Units of Measurement
Available Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

vii515 FA02 - 18 June 2017
List of Figures
1 Typical Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Externally Powered Voltage Transmitter . . . . . . . . . . . . . . . . . . . . . 12
4 Internally Powered Voltage Transmitter . . . . . . . . . . . . . . . . . . . . . 12
5 Externally Powered Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Internally Powered Current Loops . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Logic Inputs Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Output 4-20mA Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . 14
9 Output Pulse Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Relay Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11 RS-485 Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 Logged Data Display Methods . . . . . . . . . . . . . . . . . . . . . . . . . . 22
13 Calibration Menu Tree Sheet 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 28
14 Calibration Menu Tree Sheet 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 29
15 RS-232 Cable Connections to a Computer . . . . . . . . . . . . . . . . . . . . 50
16 RS-485 Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

viii 515 FA02 - 18 June 2017

1
Chapter 1
Introduction
Features •Programmable for either frequency or analog flow inputs
•Tailored for mass units of measure
•Freely assignable alarms for high or low levels
•Selection of second language and user tags
•RTC logging with over 1000 entries
•Programmable pulse width and scaling of pulse output
•4-20mA retransmission
•RS-232 and RS-485 (optional) serial ports
•Modbus RTU, Printer and other serial port protocols
•Front panel adjustment of 8-24V DC output voltage
•Backlit display
Overview
The 515 FA02 application pack is an add or subtract flow computer that is
tailoredspecificallyfor mass measurement. It can perform either addition or
subtraction on two frequency inputs or on two analog inputs.
The flow computer is suitable for accepting signals directly from
flowmeters or for collecting re-transmitted signals from other flow
computers providing a resultant rate and total. The instrument displays the
flow rate and total for each channel as well as the result.
The frequency input is compatible with a wide range of frequency signals,
including millivolt signals, reed switches, Namur proximity switches and
pulse trains via its smart front-panel program selection. The analog input
can be scaled and have filtering, non-linear correction and cutoff points
applied to the signal.
Calculation Modes
This instrument is capable of operating in the following modes:
515 FA02 - 18 June 2017

Introduction
2 515 FA02 - 18 June 2017
• Addition, (Channel 1 + Channel 2)
• Subtraction, (Channel 1 - Channel 2)
When subtraction mode is selected the larger flow should be connected to
channel 1. The instrument can also be programmed to perform the
calculation on either the frequency inputs (FINP1 and FINP2) or the analog
inputs (AINP3 and AINP4).
The operation mode can be observed via Modbus RTU communications.
Please refer to Instrument Control and I/O on page 61 for further details.
Calculations
The following equations identify the derivation of some of the displayed
variables. If your interest is more in the operation of the instrument, you can
skip this section and allow the instrument to take care of the calculations.
For frequency inputs the calculation of totals are exact as the instrument
collects all pulses detected on each channel.
channel total = pulses / k-factor
The flow rates are derived from an accurately measured frequency:
channel flow = frequency / k-factor
For analog inputs, to derive the flow rate, the analog input is normalised to
a value (A) between 0 and 1.
channel flow = (Vf max-Vf min)A+Vfmin
The resultant values are then:
ADD result = channel 1 + channel 2
SUB result = channel 1 - channel 2
Analog Input Scaling
The analog inputs in this instrument are scaled by the following general
formula:
where:
channeltotal channelflow t

=
Pmin = minimum point (equivalent to offset)
Pmax = maximum point (Pmax – Pmin is equivalent to span)
f
A Pmin Pmax Pmin–A*+=

Introduction
515 FA02 - 18 June 2017 3
Correction Type
•LINEAR: when the instrument is not required to apply
correction
•NON-LINEAR: when the instrument applies correction from
the points in the correction table
Displayed Information
The front panel display shows the current values of the input variables and
the results of the calculations.
The instrument can be supplied with a real-time clock for data logging of
over 1000 entries of the variables as displayed on the main menu.
Main Menu Variables
Refer to Available Units of Measurement on page 72 for the list of
available units.
Communications
There are two communication ports available as follows:
•RS-232 port
•RS-485 port (optional)
The ports can be used for remote data reading, printouts and for initial
application loading of the instrument.
A* = normalised signal (0 to 1) with correction applied for a flow input
A* A=
A* Ac =
Main Menu
Variables Default Units Variable Type
Total 1 kg Total
Flowrate 1 kg/min Rate
Total 2 kg Total
Flowrate 2 kg/min Rate
Resulting Total kg Total
Resulting Flowrate kg/min Rate

Introduction
4 515 FA02 - 18 June 2017
Isolated Outputs
The opto-isolated outputs can re-transmit any main menu variable. The type
of output is determined by the nature of the assigned variable. Totals are
output as pulses and rates are output as 4-20mA signals. One output is
standard, a second output is available as an option.
Relay Outputs
The relay alarms can be assigned to any of the main menu variables of a rate
type. The alarms can be fully configured including hysteresis. Two relays
are standard with additional two relays available as an option.
Software Configuration
The instrument can be further tailored to suit specific application needs
including units of measurement, custom tags, second language or access
levels. A distributor can configure these requirements before delivery.
Instrument parameters including units of measurement can be programmed
in the field, according to the user access levels assigned to parameters by the
distributor.
All set-up parameters, totals and logged data are stored in non-volatile
memory with at least 30 years retention.
Figure 1 Typical Application Diagram
Channel 1 Flow
Frequency Input 1
or Analog Input 3
Channel 2 Flow
Flowmeter or
Frequency Input 2
or Analog Input 4
retransmitted signals

Introduction
515 FA02 - 18 June 2017 5
Limitations of Use
Negative Resultant Flow
In subtraction mode the instrument is capable of calculating and displaying
a negative resultant flow when Flow 2 is greater than Flow 1. However it
can not represent this with a retransmission output pulse. The pulse output
will only represent positive resultant flow, i.e. Flow 1 > Flow 2.
Approvals This instrument conforms to the EMC-Directive of the Council of
European Communities 2014/30/EU, the LVD safety directive 2014/35/EU
and the following standards:
•EN61326:2013 Electrical equipment for measurement, control and
laboratory use – EMC requirements: Industrial Environment.
•EN61010:2010 Safety requirements for electrical equipment for
measurement, control, and laboratory use.
In order to comply with these standards, the wiring instructions in Chapter
3 - Installation must be followed.
FCC Declaration
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, might
cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in
which case the user will be required to correct the interference at his own
expense.
Properlyshieldedandgroundedcablesandconnectorsmustbe used in order
to meet FCC emission limits. Contrec Ltd is not responsible for any radio or
television interference caused by using other than recommended cables and
connectors or by unauthorized changes or modifications to this equipment.
Unauthorized changes or modifications could void the user's authority to
operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device might not cause harmful
interference, and (2) this device must accept any interference received,
including interference that might cause undesired operation.

Introduction
6 515 FA02 - 18 June 2017

7
Chapter 2
Specifications
Specification Table
Operating Environment
Temperature -20°C to +60°C (conformal coating)
+5°C to +40°C (no coating)
Humidity 0 to 95% non condensing (conformal
coating)
5% to 85% non condensing (no coating)
Power Supply 100-240 V AC (+/-10%) 50-60 Hz (+/-
10%) or 12-28 V DC
Consumption 6W (typical)
Protection Sealed to IP65 (Nema 4X) when panel
mounted
Dimensions
(panel option) 147mm (5.8") width
74mm (2.9") height
167mm (6.6") depth
Display
Type Backlit LCD with 7-digit numeric display
and 11-character alphanumeric display
Digits 15.5mm (0.6") high
Characters 6mm (0.24") high
LCD Backup Last data visible for 15min after power
down
Update Rate 0.3 second
Non-volatile Memory
Retention > 30 years
Data Stored Setup, Totals and Logs
Approvals
Interference compliance
Enclosure IECEx, ATEX and CSA approved
enclosures available for hazardous areas
Real Time Clock (Optional)
Battery Type 3 volts Lithium button cell (CR2032)
Battery Life 5 years (typical)
Frequency Input (General)
Range 0 to 10kHz
Overvoltage 30V maximum
Update Time 0.3 sec
Cutoff frequency Programmable
Configuration Pulse, coil or NPS input
Non-linearity Up to 10 correction points
Pulse
Signal Type CMOS, TTL, open collector, reed switch
Threshold 1.3 volts
Coil
Signal Type Turbine and sine wave
Sensitivity 15mV p-p minimum
NPS
Signal Type NPS sensor to Namur standard
Analog Input (General)
Overcurrent 100mA absolute maximum rating
Update Time < 1.0 sec
Configuration 4-20mA, 0-5V and 1-5V input
Non-linearity Up to 20 correction points (some inputs)
4-20mA Input
Impedance 100 Ohms (to common signal ground)
Accuracy 0.05% full scale (20 C)
0.1% (full temperature range, typical)
0-5 or 1-5 Volts Input
Impedance 10MOhms (to common signal ground)
Accuracy 0.05% full scale (20 C)
0.1% (full temperature range, typical)
Logic Inputs
Signal Type CMOS, TTL, open collector, reed switch
Overvoltage 30V maximum
515 FA02 - 18 June 2017

Specifications
8 515 FA02 - 18 June 2017
Important: Specifications are subject to change without notice.
Printer protocol is available only if RTC option is installed.
Relay Output
No. of Outputs 2 relays plus 2 optional relays
Voltage 250 volts AC, 30 volts DC maximum
(solid state relays use AC only)
Current 3A maximum
Communication Ports
Ports RS-232 port
RS-485 port (optional)
Baud Rate 2400 to 19200 baud
Parity Odd, even or none
Stop Bits 1 or 2
Data Bits 8
Protocols ASCII, Modbus RTU, Printer*
Transducer Supply
Voltage 8 to 24 volts DC, programmable
Current 70mA @ 24V, 120mA @ 12V maximum
Protection Power limited output
Isolated Output
No. of Outputs 1 configurable output (plus 1 optional)
Configuration Pulse/Digital or 4-20mA output
Pulse/Digital Output
Signal Type Open collector
Switching 200mA, 30 volts DC maximum
Saturation 0.8 volts maximum
Pulse Width Programmable: 10, 20, 50, 100, 200 or
500ms
4-20mA Output
Supply 9 to 30 volts DC external
Resolution 0.05% full scale
Accuracy 0.05% full scale (20C)
0.1% (full temperature range, typical)

9
Chapter 3
Installation
Panel Mounting
The instrument should be located in an area with a clean, dry atmosphere
that is also relatively free of shock and vibration.
The standard mounting procedure is panel mounting in a cutout that is
139mm wide by 67mm high. Two side clips secure the unit into the panel.
shows the panel mounting requirements for the 500 Series Instrument.
500 Series Instrument Panel Mounting
145mm
Side View
22mm
70mm
67mm
139mm
25mm
66mm
Min. 189mm
Panel Cut-out
Front
Panel
74mm
Mounting Clip
138mm
147mm
Rear Connectors Top View RS232
Port
515 FA02 - 18 June 2017

Installation
10 515 FA02 - 18 June 2017
Electrical Connection
Rear Panel Connections
Figure 2 shows the connections on the rear panel of the instrument.
Figure 2 Rear Panel Connections
Terminal Designations
RS232 Port
CAUTION
MAINS
E N A
AC MAINS
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
RC R1 R2 R3 R4
RELAYS
+ - G1+2+3+4+C- + - + -
RS485 LOGIC INPUT OUT1 OUT2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
FINP SG EXC V AINP1 AINP2 AINP3 AINP4 Vo G Vi SH
1+2+-1+2+3++-+-+-+-+-+E
Terminal Label Designation Comment
1 FINP 1+ Frequency Input 1+ Channel 1 flow Input
2 FINP 2+ Frequency Input 2+ Channel 2 flow Input
3 SG - Signal ground
4 EXC V 1+ Excitation Term 1+ Not used
5 EXC V 2+ Excitation Term 2+ Not used
6 EXC V 3+ Excitation Term 3+ Not used
7AINP1 + Analog Input ch 1 (+) Not used
8 - Analog Input ch 1 (-)
9AINP2 + Analog Input ch 2 (+) Not used
10 - Analog Input ch 2 (-)
11 AINP3 + Analog Input ch 3 (+) Channel 1 Flow Input
12 - Analog Input ch 3 (-)
13 AINP4 + Analog Input ch 4 (+) Channel 2 Flow Input
14 - Analog Input ch 4 (-)
15 Vo + 8-24 volts DC output Overload protected
16 G - DC Ground
17 Vi + DC power input DC power in 12-28V
18 SH E Shield terminal
EAC
MAINS
E Mains ground AC power in 100-
240VAC
N N Mains neutral
A A Mains active
19
RS485
+ RS485 (+)
Optional RS485 port20 - RS485 (-)
21 G RS485 ground
22
LOGIC
INPUTS
1+ Switch 1
23 2+ Switch 2
24 3+ Switch 3
25 4+ Switch 4
26 C- Signal ground
27 OUT1 + Output ch 1 (+)
28 - Output ch 1 (-)
29 OUT2 + Output ch 2 (+) Optional output
30 - Output ch 2 (-)
31
RELAYS
RC Relay common
32 R1 Relay 1
33 R2 Relay 2
34 R3 Relay 3 Optional relays
35 R4 Relay 4
RS232 port 9-pin serial port
Terminal Label Designation Comment

Installation
515 FA02 - 18 June 2017 11
Inputs
Frequency Input Connection
Connect pulse or frequency input signals from devices such as: TTL,
CMOS, open collector, reed relay switch, coil and Namur proximity switch,
as shown below. For better signal integrity, it is recommended to use
shielded cable. Refer to Terminal Designations on page 10 for specific
terminal numbers for this application.
Squarewave, CMOS or TTL
Open Collector
Reed Relay Switch
Coils - with 15 millivolts peak to peak AC minimum
Namur Proximity Switch
18 Shield
Signal Ground
3
Frequency
Input
(FINPn)
+
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
NPN PNP
+V
Signal Ground
18 Shield
3
Frequency
Input
(FINPn)
+
~
18
Signal Ground
Shield
3
Frequency
Input
(FINPn)
+
15 Vo +8V DC
18 Shield
NPS
Frequency
Input
(FINPn)
+

Installation
12 515 FA02 - 18 June 2017
Analog Input Connections
All analog inputs can accept DC signals ranging from 0-5V, 1-5V and
current signals from 4 to 20mA.
CAUTION
Applying levels of input current above the absolute maximum
rating (100mA) may cause permanent damage to the input
circuitry.
0-5 and 1-5 Volt Inputs
For externally powered voltage transmitters, connect each transmitter to a
pair of input terminals as shown in Figure 3. Refer to Terminal
Designations on page 10 for specific terminal numbers for this application.
Figure 3 Externally Powered Voltage Transmitter
Connect internally powered voltage transmitters as shown in Figure 4.
Figure 4 Internally Powered Voltage Transmitter
+
-
-
+
Signal
Transmitter 18 Shield
Analog
Input
(AINPn)
15
-
-
+
+
16
Vo +8...24V DC
DC ground
Signal
Transmitter
18 Shield
Analog
Input
(AINPn)