Contrec 515 User manual

Model 515 Flow Computer
Operation Manual
Application DG01
Density Converter (Gas)
for
Pulse Output Density Meters
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-DG01-OM - 18 June 2017

515 DG01 - 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 DG01 - 18 June 2017

iv 515 DG01 - 18 June 2017

v
1 Introduction
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Equation Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
User Defined Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Analog Input Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Displayed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Main Menu Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Isolated Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Temperature and Pressure Input Types . . . . . . . . . . . . . . . . . . . . . . . . . 6
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Specifications
Specification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Installation
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Frequency (Pulse) Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . 13
Analog Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Logic Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4-20mA Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Control Relays (Alarms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
RC Network for Interference Suppression . . . . . . . . . . . . . . . . . . . . . . 19
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Infra-red Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
RS-485 Port (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Earthing and Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Operation
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Default Variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Front Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Main Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Default Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Model Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 Instrument Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Contents
515 DG01 - 18 June 2017

vi 515 DG01 - 18 June 2017
Calibration View Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Calibration Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Changing the Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Calibration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Time Settings and Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
General Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6 Communications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Hardware Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Simple ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Requests Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Instrument Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Corrupted or Invalid Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Modbus RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
List of Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Printer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Types of Printouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Printer Data Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Appendix A Glossary
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Appendix B Model Numbers
Product Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Custom Version Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Application Information Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Appendix C Units of Measurement
Available Units of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Appendix D Reference Tables
Properties of Selected Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

vii515 DG01 - 18 June 2017
List of Figures
1 Typical Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Externally Powered Voltage Transmitter . . . . . . . . . . . . . . . . . . . . . 14
4 Internally Powered Voltage Transmitter . . . . . . . . . . . . . . . . . . . . . 14
5 Externally Powered Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Internally Powered Current Loops . . . . . . . . . . . . . . . . . . . . . . . . 15
7 RTD Connection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Logic Inputs Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Output 4-20mA Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . 17
10 Relay Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11 RS-485 Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
12 Logged Data Display Methods . . . . . . . . . . . . . . . . . . . . . . . . . . 24
13 Calibration Menu Tree Sheet 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 30
14 Calibration Menu Tree Sheet 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 31
15 RS-232 Cable Connections to a Computer . . . . . . . . . . . . . . . . . . . . 52
16 RS-485 Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

viii 515 DG01 - 18 June 2017

1
Chapter 1
Introduction
Features •Pulse input for density
•Temperature and Pressure inputs for density conversion to reference
conditions
•Conversion based on a variety of General Gas equations
•Customer Defined Function (look-up table)
•Versatile User Input available on main menu
•Selection of second language and user tags
•RTC logging with over 1000 entries
•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 density converter application accepts inputs from Sarasota density
meters, temperature and pressure transmitters, and an unassigned input
enabling a variable to be connected as an input to the Customer Defined
Function (look-up table).
The converter calculates line (measured) density from the density meter
period output and uses it together with temperature and pressure readings to
derive density at reference conditions and calculate specific gravity and
other density related variables.
This instrument is compatible with a wide range of density meter pulse
outputs, including millivolt signals, reed switches, Namur proximity
switches and pulse trains via its smart front-panel program selection.
515 DG01 - 18 June 2017

Introduction
2 515 DG01 - 18 June 2017
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.
The line density calculations are based on accurately measured average
period of pulses coming from density meters such as Sarasota Industrial
Density Meter FD910, etc.
A variety of calculations are available to suit the nature of the gas and the
measurement conditions. The calculations are valid for the vapour phase of
a gas.
Equations Of State:
•Ideal Gas
•Redlich-Kwong
•Soave-Redlich-Kwong
•Peng-Robinson
Equation Sets
Measured Line Density Correction
where:
Equations of State
In this instrument the calculation of gas properties can be based on one of
the following equations of state. These equations are based around the
general gas law that relates pressure (P), temperature (T), Universal Gas
Constant (R) and compressibility (Z) to the volume (V):
PV = ZRT
The method by which each equation determines the compressibility factor
differs, meaning it is more suited to certain gas types and conditions.
Ideal Gas
The Ideal Gas equation assumes the compressibility factor to be 1. This
equation is suited to gas at low pressure and high temperatures.
= measured line density
DCF = density correction factor (default 1.0)
D_OFFSET = density offset (default 0.0)
DCFD_OFFSET+=

Introduction
515 DG01 - 18 June 2017 3
Redlich-Kwong (1949)
The Redlich-Kwong equation determines the compressibility factor with a
cubic equation that uses the Critical Temperature and Pressure gas
properties. This equation is included in this instrument from a historical or
backward compatibility point of view as some older installations still
specify it as the means of gas calculation.
Soave-Redlich-Kwong (1972)
The Soave-Redlich-Kwong equation determines the compressibility factor
with a cubic equation. It uses the Acentric Factor of the gas as well as the
Critical Temperature and Pressure. This equation accurately models the
vapour pressure of light hydrocarbons and light gases at or above
atmospheric pressures.
Peng-Robinson (1976)
The Peng-Robinson equation also determines the compressibility factor
with a cubic equation. It uses the Acentric Factor of the gas as well as the
Critical Temperature and Pressure. This was designed to provide better
vapour pressure for hydrocarbons in the gasoline range.
Critical Temperature and Pressure
The Critical Temperature and Pressure can be entered as constants or
approximated by quadratic equation as functions of Specific Gravity:
Set coefficients A and B to zero if no SG approximation is required.
User Defined Function
The user defined function allows the user to set up a table defining two
output variables OUT-A and OUT-B as a function of two input variables
INP-X and INP-Y. Such table enables the computation of more complex
non-linear custom functions based on the main menu variables. The 500-
Series Program Manager PC software allows to customize the table as well
as other parameters before downloading embedded software into the
instrument.
For further details of these equations or restrictions of use please refer to the
appropriate standard or relevant documents.
T
CT01ATSGBTSG2
++=
P
CP01APSGBPSG2
++=

Introduction
4 515 DG01 - 18 June 2017
Analog Input Scaling
The analog inputs in this instrument are scaled by the following general
formula:
where:
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.
This application indicates the type of pressure value being displayed as
either gauge or absolute by adding an ‘A’ or ‘G’ to the units of
measurement.
Pmin = minimum point (equivalent to offset)
Pmax = maximum point (Pmax – Pmin is equivalent to span)
A* = normalised signal (0 to 1) with correction applied for a flow input
f
A Pmin Pmax Pmin–A*+=

Introduction
515 DG01 - 18 June 2017 5
Main Menu Variables
Refer to Available Units of Measurement on page 74 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.
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.
Main Menu
Variables Default Units Variable Type
Density (Line) kg/m3 Rate
Period us Rate
Density (Reference) kg/m3 Rate
Temperature Deg C Rate
Pressure kPa Rate
Specific Gravity E+0 Rate
Z-Factor (Line) E+0 Rate
Z-Factor (Reference) E+0 Rate
Molecular Weight E+0 Rate
Critical Temperature Deg C Rate
Critical Pressure kPa Rate
User Input - - - Rate
User Output A - - - Rate
User Output B - - - Rate

Introduction
6 515 DG01 - 18 June 2017
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.
Temperature and Pressure Input Types
Temperature sensor input(s) can be either PT100, PT500, 4-20mA, 0-5V or
1-5V signals. Pressure sensor input(s) can be either 4-20mA, 0-5V or 1-5V
signals.
Figure 1 Typical Application Diagram
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.
T
Temperature
Transmitter
Pulse Input 1 Analog
Input 1
D
Analog
Input 2
Density
Transmitter
P
Pressure
Transmitter
Analog
Input 3
U
User Input

Introduction
515 DG01 - 18 June 2017 7
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
8 515 DG01 - 18 June 2017

9
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 RTD, 4-20mA, 0-5V and 1-5V input
Non-linearity Up to 20 correction points (some inputs)
RTD Input
Sensor Type PT100 & PT500 to IEC 751
Connection Four Wire
Range -200C to 350C
Accuracy 0.1C typical (-100C to 300C)
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)
515 DG01 - 18 June 2017

Specifications
10 515 DG01 - 18 June 2017
Important: Specifications are subject to change without notice.
Printer protocol is available only if RTC option is installed.
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
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
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)

11
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 DG01 - 18 June 2017

Installation
12 515 DG01 - 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+ Density Input (Pulse)
2 FINP 2+ Frequency Input 2+ Not used
3 SG - Signal ground
4 EXC V 1+ Excitation Term 1+ Not used
5 EXC V 2+ Excitation Term 2+ For AINP1 RTD Input
6 EXC V 3+ Excitation Term 3+
7AINP1 + Analog Input ch 1 (+) Temperature Input
8 - Analog Input ch 1 (-)
9AINP2 + Analog Input ch 2 (+) Pressure Input
10 - Analog Input ch 2 (-)
11 AINP3 + Analog Input ch 3 (+) User input
12 - Analog Input ch 3 (-)
13 AINP4 + Analog Input ch 4 (+)
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