Contrec 515 User manual

Model 515 Flow Computer
Operation Manual
Application BS01
Secure Dual Stage Batch Controller
for
Frequency Flowmeters
15 August 2021

Model 515 Flow Computer - Operation Manual
© Contrec Ltd 2021
The instructions given herein cover the general description, installation, operation and maintenance of the subject
equipment. Contrec Ltd 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 Ltd for further detailed information and technical assistance.
Contrec Ltd 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 Ltd
Riverside, Canal Road, Sowerby Bridge,
West Yorkshire HX6 2AY UNITED KINGDOM
Tel: [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-BS01-OM - 15 August 2021

515 BS01 - 15 August 2021 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.
This document must be consulted in all cases where the following “Caution” safety symbol is
used :
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. Refer to section 3 for further information regarding permitted
maintenance operations. The safety of any system incorporating the equipment is the
responsibility of the assembler of the system.
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,
especially during servicing. Once the unit is installed, grounded and interconnected, the chances
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. Operate only in a clean, dry and pollutant-free environment.
Operating & Storage Temperature
Operating: If a heater is being used, DO NOT isolate the instrument in temperatures below
-20°C.
Storage: DO NOT store the equipment below -20°C.
515 BS01 - 15 August 2021

i v 515 BS01 - 15 August 2021
Disconnection Device
When powered from a mains supply this unit requires the provision of a suitable mains isolation
device, capable of interrupting both poles of the supply and meeting your local wiring
regulations, to be suitably located and easily accessible near to the installed instrument. It must
be marked as the disconnecting device for the equipment. It must be suitably rated with respect
to the cross sectional area of the supply conductors.
Instrument Disposal
Contrec instrumentation should not be thrown into the general waste system.
If within EU member states, this instrument should be disposed of according to
the guidelines set by the WEEE (Waste Electrical and Electronic Equipment)
directive 2012/19/EU. If outside of the EU, this equipment should be
responsibly disposed of according to local and national regulations for EEE
(Electrical and Electronic Equipment).
By not discarding of this product along with other house hold waste you are
preserving natural resources and reducing waste sent to landfill and incinerators.
Remove batteries and dispose of separately (see Disposal of Batteries) before disposal of
Contrec instrumentation.
Disposal of Batteries
Batteries have an environmental impact. Safe and responsible disposal should
be undertaken.
In all EU member states, as per Directive 2006/66/EC, batteries must not be
thrown away with general waste. Contact your local environmental authority
for information regarding disposal or recycling of used batteries, alternatively
they can be returned directly to Contrec Ltd. for disposal.
Please Contact Contrec Ltd before returning batteries for disposal.
Explanation of IEC Symbols Used
You should familiarise yourself with the following symbols which are used both within this
manual and on the instrument itself.
This document must be consulted in all cases where the following “Caution” safety
symbol is used.
DC Input (DC).
AC Input (AC).
Protective Earth Terminal.

v
1 Introduction
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Analog Inputs as User Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Displayed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Main Menu Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Isolated Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specialised Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Specifications
Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Installation & Maintenance
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cleaning and Decontamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Terminal Wiring Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Relay Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mains Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Frequency Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Analog Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Logic Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4-20 mA Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Digital Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Control Relays (Alarms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RC Network for Interference Suppression . . . . . . . . . . . . . . . . . . . . . . 20
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
COM-1 RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
COM-2 RS-485 Port Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
COM-2 Ethernet Port Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mains Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Earthing and Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Contents
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v i 515 BS01 - 15 August 2021
Disconnection Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 Operation
Front Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Default Variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Front Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Main Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Detail and Basic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Setting the Batch Preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Setting the Density Preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Model Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Batch Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Preset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
On-Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Unload Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Batch Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Safety and Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Batch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Starting a Batch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Stopping a Batch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Resetting a Batch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Printing a Delivery Docket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Logic Input Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Batch Flow Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Batch Control Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5 Instrument Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Calibration View Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Calibration Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Changing the Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Program Backup & Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Backup via 500 Series Program Manager . . . . . . . . . . . . . . . . . . . . . . 43
Printing Configuration Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Upload and Clone of Application Software . . . . . . . . . . . . . . . . . . . . . 43
Calibration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

515 BS01 - 15 August 2021 vii
Time Settings and Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
General Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Prompt Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6 Communications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Hardware Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Simple ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Requests Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Instrument Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Corrupted or Invalid Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Modbus RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
List of Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
ID Tag Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
iButton ID Tag Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
RFID ID Tag Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Printer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Types of Printouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Printer Data Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Appendix A Glossary
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Appendix B Model Numbers
Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Custom Version Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Application Information Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Appendix C Ethernet Port & Setup
Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Connecting 515 Ethernet to Networks/Routers . . . . . . . . . . . . . . . . . . . . . 94
Connecting DataMod via Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

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i x515 BS01 - 15 August 2021
List of Figures
1 Typical Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 500 Series Instrument Panel Mounting . . . . . . . . . . . . . . . . . . . . . . 11
3 Rear Panel Connections - Original . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Rear Panel Connections - New RS-485 Version . . . . . . . . . . . . . . . . . 12
5 Rear Panel Connections - New Ethernet Version . . . . . . . . . . . . . . . . . 13
6 Externally Powered Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Internally Powered Current Loops . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Logic Inputs Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Output 4-20 mA Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . 18
10 Output Pulse Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 18
11 Relay Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
12 RS-485 Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
13 Batch Operation with Manual or Automatic Reset . . . . . . . . . . . . . . . . 37
14 Batch Operation with Automatic Restart . . . . . . . . . . . . . . . . . . . . . 38
15 Calibration Menu Tree Sheet 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 44
16 Calibration Menu Tree Sheet 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 45
17 RS-232 Cable Connections to a Computer . . . . . . . . . . . . . . . . . . . . 67
18 RS-485 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
19 DataMod - Modbus Connection Settings . . . . . . . . . . . . . . . . . . . . . 95

x 515 BS01 - 15 August 2021

1
Chapter 1
Introduction
Features
•Tailored for volumetric frequency flow input
•Uses a fixed density value for volume to mass calculations
•Single or Dual stage control
•Allows batching on Volume or Mass total
•Unload, Preset or manual On-Off modes
•Special quadrature flow input feature allows for forward and reverse
totalising in On-Off batch mode
•Quick access to common batch quantities
•No-flow, leakage and overflow error detection
•Remote RUN/STOP/RESET functions
•Allows for permissive with prompt
•ID validation (iButton or RFID), security and storage
•Allows for non-linear correction
•Storage of 1000 transactions with time and date stamp
•Selection of Detail or Basic main menu to suit operator and application
•Selection of second language and user tags
•Pulse width and scaling of pulse output
•4-20 mA retransmission
•Available protocols on communication ports including Printers, Modbus
RTU and TCP/IP
•Front panel adjustment of 8-24 V DC output voltage
•Backlit display with LCD backup
Overview
The 515 BS01 application is a secure dual stage batch controller for reliable
measurement of preset quantities using a volume frequency input. The
instrument can be set to accept a valid ID-Tag via ‘iButton’ or RFID reader
on the serial port and/or prompt for connection of a permissive before a
batch can be commenced.
515 BS01 - 15 August 2021

Introduction
2 515 BS01 - 15 August 2021
It provides the operator with clear prompts and local readout. ID and User
codes are stored as a part of the logged transaction record. The ID can be
used to link deliveries to external databases and the User code can be used
to identify selected tank or product codes. Standard 500 Series batching
features such as automatic overrun compensation, quick access to common
presets and flow timeouts are included.
The instrument is compatible with a wide range of flowmeter frequency
outputs, including millivolt signals, reed switches, Namur proximity
switches and pulse trains via its smart front-panel program selection.
Calculations
The total and flowrate are derived from accurately measured frequency and
the number of received pulses.
volume = pulses / k-factor
volume flow = frequency / k-factor
A fixed density preset is used to calculate the mass flow and total:
mass = volume x density
The User Code is determined by the mA signal applied to the analog inputs
as shown in Terminal Designations.
Automatic overrun compensation calculates the new valve closure point to
ensure correct delivery by averaging the overrun amount from the last three
complete batches.
The overrun compensation value is valid for a new preset value provided the
stored overrun is less than 20% of the new preset.
Analog Inputs as User Code
The analog inputs in this instrument are set as 4-20mA inputs to provide
User Code functionality - by applying input currents in 4.5mA steps, User
Code can be set in a 1...16 range (see Terminal Designations).
The User Code is logged/printed with the other main menu items and can
serve, for example, as a Tank ID/Code on a delivery docket.
Note: the higher numbered analog inputs have priority over lower numbered
ones.

Introduction
515 BS01 - 15 August 2021 3
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 storage of up to
1000 transactions with time and date stamps.
Main Menu Variables
* These variables are logged and can be printed but are not shown in main menu.
Units of Measurement
In the 500 Series instruments there is a wide range of available units of
measurement to be selected from. These can be viewed and selected either
during initial Software Configuration via the 500 Series Program Manager
(see below) or from within the instrument’s calibration settings (if access
has been granted) as per Units of Measurement on page 46.
Communications
There are two communication ports available as follows:
•COM-1 RS-232 port
•COM-2 RS-485 port (optional) or Ethernet (optional)
The ports are available for remote data reading, printouts and for initial
application loading of the instrument.
Main Menu
Variables
Default
Units
Variable
Type
Volume L Total
Volume Flowrate L/min Rate
Mass kg Total
Mass Flowrate kg/min Rate
Density kg/m3Rate
User Code - - - Rate
Preset Quantity * - - - - - -
Batch ID Tag * - - - - - -

Introduction
4 515 BS01 - 15 August 2021
Isolated Outputs
The opto-isolated outputs can retransmit 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 4-20 mA signals. One output is
standard, a second output is available as an option.
Relay Outputs
The relay outputs 1 and 2 are used to control the flow of product for each
delivery. These contacts are normally open and can be used to drive external
relays, valves, pump circuits etc. The advanced option provides another two
relays that can be used as fully programmable alarms for any rate type
variable.
Software Configuration
The instrument can be programmed to suit the particular application needs
and the flexible I/O can be assigned as required. Program settings can be
changed either via the front panel (depending on assigned access levels) or
via the 500 Series Program Manager (500-PM software).
The 500-PM software is a free comprehensive configuration tool and
resource centre that can be used to further tailor an instrument to suit
specific application needs including units of measurement, custom tags and
text, access levels and more.
The software is a Windows based program that is freely available from the
download section of the Contrec website. The program can be used to create
a custom version of an existing application to be saved for backup purposes
and/or to generate a PDF of configuration report for record keeping.
The instrument stores all set-up parameters, totals and logged data in non-
volatile memory with at least 30 years retention.
Figure 1 Typical Application Diagram
Main Flow
Control Valve
Frequency
Input
Bleed Flow
Relay 1 Relay 2
Control Valve
Example of
dual stage
batching
Volumetric
Flowmeter

Introduction
515 BS01 - 15 August 2021 5
Specialised Uses
On-Off Loading with a Quadrature Flowmeter
A quadrature pulse input is available on this instrument that operates as a
pulse security feature. When the instrument is programmed to operate in
ON-OFF batch mode it also allows the detection of flow direction which
allows for on and off loading with just one flowmeter.
When quadrature input is enabled and ON-OFF batch mode is selected, the
instrument will automatically count up or down depending on the direction
of flow detected. At the end of the delivery the batch total will show the net
amount of product delivered. If product is ‘loaded’ in a forward direction the
overall batch total will be positive. If the intention is to ‘off-load’ product
by reversing the flow, the overall batch total will be negative. The negative
sign on the totals are shown on print outs and logged data to indicate if the
delivery was ‘on-loaded or off-loaded’.
The instrument caters for applications where there is the possibility of
product flowing in either direction during a delivery or transfer. This
includes examples such as back draining of supply lines at the end of a
delivery. In this case the display would show the back draining product
being deducted from the current net batch total.
In On-Off mode the operator determines the start and end of the delivery by
using the front or remote keys.
Quadrature Input Check
When enabled, the two pulse trains from the quadrature flowmeter should
be supplied to frequency inputs 1 and 2. In ON-OFF batch mode the
instrument will check the phase of the two inputs to determine if channel 1
or channel 2 is leading which allows the instrument to determine the
direction of flow. For forward counting flow channel 1 should lead channel
2 by approx 90 degrees phase shift and for reverse counting flow channel 2
should lead channel 1 by approx 90 degrees.
The instrument also checks for simultaneous pulses, missing pulses on
channel 1 and missing pulses on channel 2. If more than two errors, of one
of these fault types, occur within 2000 pulses the instrument will raise a
quadrature input exception.

Introduction
6 515 BS01 - 15 August 2021
Quadrature Cutoff Frequency
Due to the varying sensitivity of sensors in quadrature flowmeters
(especially pickup coils in turbine meters) it is possible to get pulse errors at
very low flowrates (frequency) during start up and change of directions. For
this reason, the instrument includes a CUTOFF for the QUAD input
(entered in Hz) that will ignore any of the errors mentioned above and will
not totalise below the programmed cutoff. This cutoff has a minimum of
10Hz and can be programmed up to 100Hz. The cutoff value should be set
safely below the flowmeters minimum specified operating range so as not
to ignore any valid flow. Any detected flowrate on channel 1 will still be
displayed below the quadrature cutoff frequency.
Pulse security checking is performed from the preprogrammed cutoff
frequency up to a maximum frequency of 3 kHz. An exception will be raised
if the maximum frequency is exceeded. The flow calculations are always
based on the pulses received on frequency input channel 1, while channel 2
is used to determine the phase and therefore direction of flow and totalising.
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 & Maintenance 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.

Introduction
515 BS01 - 15 August 2021 7
Properly shielded and grounded cables and connectors must be 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
8 515 BS01 - 15 August 2021

9
Chapter 2
Specifications
Specification Table
Operating Environment
Temperature +5 °C to +40 °C (standard - no coating)
-20 °C to +60 °C (with conformal coating)
-30 °C to +60 °C (ExD housing with heater)
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 10 W (max) Overvoltage category II
Protection Sealed to IP65 (Nema 4X) when panel
mounted
Dimensions
(panel option)
147 mm (5.8") width
74 mm (2.9") height
170 mm (6.6") depth (behind the panel)
Display
Type Backlit LCD with 7-digit numeric display
and 11-character alphanumeric display
Digits 15.5 mm (0.6") high
Characters 6 mm (0.24") high
LCD Backup Last data visible for 15 min 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
- For Issue 7 option card, type CR2450N
manufactured by Renata only
- For conformal coated ‘C’ version, type
BR2032 manufactured by Panasonic only
- For non-conformal coated versions, type
BR2032 and CR2032 manufactured by
Panasonic or Sony
Battery Life 5 years (typical)
Frequency Input (General)
Range 0 to 10 kHz for Pulse input type
0 to 5 kHz for Coil & NPS input types
(3kHz for pulse security)
Overvoltage 30 V 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 Signals switch below 1.3 & above 2 volts
Coil
Signal Type Turbine and sine wave
Sensitivity 15 mV minimum amplitude (typical)
NPS
Signal Type NPS sensor to Namur standard
4-20 mA Inputs
Overcurrent 30 mA absolute maximum rating
Impedance 100 Ohms (to common signal ground)
Logic Inputs
Signal Type CMOS, TTL, open collector, reed switch
Overvoltage 30V maximum
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 - mechanical relays
1.5A maximum - solid state relays
515 BS01 - 15 August 2021

Specifications
1 0 515 BS01 - 15 August 2021
Important: Specifications are subject to change without notice.
Communication Ports
Ports COM-1 RS-232 port
COM-2 RS-485 or Ethernet 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, Modbus TCP/IP
(Ethernet Port), Printer, ID-Tag, ID-RF-1
Transducer Supply
Voltage 8 to 24 volts DC, programmable
Current 70 mA @ 24 V, 120 mA @ 12 V maximum
Protection Power limited output
Isolated Output
No. of Outputs 2 configurable outputs
Configuration Pulse/Digital or 4-20 mA output
Pulse/Digital Output
Signal Type Open collector
Switching 200 mA, 30 volts DC maximum
Saturation 0.8 volts maximum
Pulse Width Programmable: 10 , 20, 50, 100, 200 or
500ms
4-20 mA 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)