Sierra HART 600 Series User manual

600/700 Series HART
Instruction Manual
HART Device Specification for Models:
640S, 760S, 780S, and 780S-UHP
Thermal Mass Flow Meters
Part Number: IM600/700 HART, Rev. V1
May 2013

GLOBAL SUPPORT LOCATIONS: WE ARE HERE TO HELP!
CORPORATE HEADQUARTERS
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Phone [phone] [phone] Fax [phone]
www.sierrainstruments.com
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The Netherlands
Phone [phone] Fax [phone]
ASIA HEADQUARTERS
Second Floor Building 5, Senpu Industrial Park
25 Hangdu Road Hangtou Town
Pu Dong New District, Shanghai, P.R. China
Postal Code 201316
Phone: + 8621 5879 8521 Fax: [phone]
IMPORTANT CUSTOMER NOTICE- OXYGEN SERVICE
Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever,resulting from the use of Sierra Instruments standard mass
flow meters for oxygen gas. You are responsible for determining if this mass flow meter is appropriate for your oxygen application. You
are responsible for cleaning the mass flow meter tothe degree required for your oxygen flow application.
© COPYRIGHT SIERRA INSTRUMENTS 2012
No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any
human or computer language, in any form or by any means, electronic, mechanical, manual, or otherwise, or disclosed to third parties
without the express written permission of Sierra Instruments. The information contained in this manual is subject to change without
notice.
TRADEMARKS
SteelMass®, Compod™, and FlatTrak™ are trademarks of Sierra Instruments, Inc. Other product and company names listed in this manual
are trademarks or trade names of their respective manufacturers.

Warnings and Cautions
Warning! Agency approval for hazardous location installations varies between flow meter models. Consult the flow meter
nameplate for specific flow meter approvals before any hazardous location installation.
Warning! Hot tapping must be performed by a trained professional. U.S. regulations often require a hot tap permit. The
manufacturer of the hot tap equipment and/or the contractor performing the hot tap is responsible for providing proof of such a
permit.
Warning! All wiring procedures must be performed with the power off.
Warning! To avoid potential electric shock, follow National Electric Code safety practices or your local code when wiring this unit
to a power source and to peripheral devices. Failure to do so could result in injury or death. All AC power connections must be in
accordance with published CE directives.
Warning! Do not power the flow meter with the sensor remote (if applicable) wires disconnected. This could cause over-heating of the
sensors and/or damage to the electronics.
Warning! Before attempting any flow meter repair, verify that the line is de-pressurized.
Warning! Always remove main power before disassembling any part of the mass flow meter.
Caution! Before making adjustments to the device, verify the flow meter is not actively monitoring or reporting to any master
control system. Adjustments to the electronics will cause direct changes to flow control settings.
Caution! All flow meter connections, isolation valves and fittings for hot tapping must have the same or higher pressure rating
as the main pipeline.
Caution! Changing the length of cables or interchanging sensors or sensor wiring will affect the accuracy of the flow meter.
You cannot add or subtract wire length without returning the meter to the factory for re-calibration.
Caution! When using toxic or corrosive gases, purge the line with inert gas for a minimum of four hours at full gas flow
before installing the meter.
Caution! The AC wire insulation temperature rating must meet or exceed 80°C (176°F).
Caution! Printed circuit boards are sensitive to electrostatic discharge. To avoid damaging the board, follow these
precautions to minimize the risk of damage:
before handling the assembly, discharge your body by touching a grounded, metal object
handle all cards by their edges unless otherwise required
when possible, use grounded electrostatic discharge wrist straps when handling sensitive components
!
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Note and Safety Information
We use caution and warning statements throughout this book to draw your attention to
important information.
Warning!
Caution!
This statement appears with information that
is important to protect people and equipment
from damage. Pay very close attention to all
warnings that apply to your application.
This statement appears with information that is
important for protecting your equipment and
performance. Read and follow all cautions that
apply to your application.
Receipt of System Components
When receiving a Sierra mass flow meter, carefully check the outside packing carton for
damage incurred in shipment. If the carton is damaged, notify the local carrier and submit a
report to the factory or distributor. Remove the packing slip and check that all ordered
components are present. Make sure any spare parts or accessories are not discarded with
the packing material. Do not return any equipment to the factory without first contacting
Sierra Customer Service .
Technical Assistance
If you encounter a problem with your flow meter, review the configuration information for
each step of the installation, operation, and setup procedures. Verify that your settings
and adjustments are consistent with factory recommendations. Installation and
troubleshooting information can be found in the SteelMass™ 640S and FlatTrak™ 780S
(includes 780S-UHP and 760S) Series product manuals.
If the problem persists after following the troubleshooting procedures outlined in the 640S or
780S product manuals, contact Sierra Instruments by fax or by E-mail (see inside front
cover). For urgent phone support you may call [phone] or [phone] between
8:00 a.m. and 5:00 p.m. PST. In Europe, contact Sierra Instruments Europe at +31 20
6145810. In the Asia-Pacific region, contact Sierra Instruments Asia at + 86-21-58798521.
When contacting Technical Support, make sure to include this information:
 The flow range, serial number, and Sierra order number (all marked on
the meter nameplate)
 The software version (visible at start up)
 The problem you are encountering and any corrective action taken
 Application information (gas, pressure, temperature and piping configuration)
!
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Table of Contents
Table of Contents ............................................................................................................................ 5
Chapter 1: Introduction................................................................................................................... 6
HART Commands ....................................................................................................................................... 6
640S/780S SIP Configurator ....................................................................................................................... 6
Device Variables and Dynamic Variables..................................................................................................... 6
Drawings...................................................................................................................................................... 9

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Chapter 1: Introduction
This document describes the function and operation of the optional HART interface for the Sierra
Instruments flow meter. The 600/700 Series HART provides different process variables: Instantaneous
Flow, Totalized Flow, User Full Scale, and K-Factor. Instantaneous flow can be selected as Velocity,
or Mass units. The Totalizer output provides totalized mass flow. The K-factor provides a Flow
Correction Factor for Velocity and Mass Flow.
This document specifies all the variables for a HART configured 640S, 760S, 780S, and 780S-UHP.
The HART signal output is provided through an extension protocol that is fully integrated into the
640S, 760S, 780S, and 780S-UHP models.
Note
In this manual 600/700 Series HART refers to product models 640S, 760S, 780S, and
780S-UHP.
HART Commands
The 600/700 Series HART meter supports the HART Universal and Device specific commands.
640S/780S SIP Configurator
The SIP software gives access to the 600/700 Series HART functions and features. It can be used to
configure the basic flow meter setup, and advance functions. The SIP Software configurator interfaces
through the 600/700 Series HART RS-232 Serial port and a PC USB RS-232 port.
Device Variables and Dynamic Variables
Through the Dynamic Variable Assignment the Device Variables are mapped to the four Dynamic
Variables: Primary (PV), Secondary (SV), Tertiary (TV) and Quaternary (QV). The assignment is
performed using Common Practice Command 50.
Device Variables Classification
The Device Variable Classification is determined by the process measurement type and will determine
the Engineering Unit that is supported. The tables below show the Device Variable Classes and the
related Engineering Units supported by the Sierra Instruments 600/700 Series HART.
Device Variable
Velocity
HART Variable Menu Units List
Actual Flow Meter Measurement
Device Variable
Classification Code 67
Code
Description
20
ft/s
(SFPS), Standard feet per second
21
m/s
(SMPS), Standard meters per second
(NMPS), Normal meters per second
116
ft/min
(SFPM), Standard feet per minute
120
m/hr
(SMPH), Standard meters per hour
(NMPH), Normal meters per hour
Volumetric Flow
HART Variable Menu Units List
Actual Flow Meter Measurement
Device Variable
Classification Code 66
Code
Description
15
CuFt/min
(SCFM), Standard Cubic feet per minute
17
l/min
(SLPM), Standard Liters per minute
(NLPM), Normal Liters per minute
19
CuMtr/hr
(Sm3/h), Standard Cubic meter per hour
!

7
(Nm3/h), Normal Cubic meter per hour
24
l/s
(SLPS), Standard Liters per second
(NLPS), Normal Liters per second
26
CuFt/s
(SCFS), Standard Cubic feet per second
28
CuMtr/s
(Sm3/S), Standard Cubic meters per
second
(Nm3/S), Normal Cubic meters per
second
130
CuFt/hr
(SCFH), Standard Cubic feet per hour
131
CuMtr/min
(Sm3/m), Standard Cubic meters per
minute
(Nm3/m), Normal Cubic meters per
minute
138
l/hr
(SLPH), Standard Liters per hour/
(NLPH), Normal Liters per hour
Mass Flow
HART Variable Menu Units List
Actual Flow Meter Measurement
Device Variable
Classification Code 72
Code
Description
73
kg/s
(Kg/s), kilograms per second
74
kg/min
(kg/m), kilograms per minute
75
kg/hr
(kg/hr), kilograms per hour
76
kg/day
(kg/d), kilograms per day
80
lb/s
(lb/s), pounds per second
81
lb/min
(lb/m), pounds per minute
82
lb/hr
(lb/hr, pounds per hour
83
lb/day
(lb/day), pounds per day
Volume Flow
Totalizer
HART Variable Menu Units List
Actual Flow Meter Measurement
Device Variable
Classification Code 68
Code
Description
41
l
(SL),Standard Liter/(NL),Normal Liter
43
CuMtr
(SM3),Standard Cubic meters/
(NM3), Normal Cubic meters
112
CuFt
(SCF), Standard Cubic feet/
(NCF),Normal Cubic feet
Mass Flow Totalizer
HART Variable Menu Units List
Actual Flow Meter Measurement
Device Variable
Classification Code 71
Code
Description
60
g
(g), Grams
61
kg
(kg), Kilograms
63
lb
(lb), Pounds
Device Variables Classification
Process Variable
Slot#
HART Variable
Code Description
Device Variable
Code
Device Variable
Classification
Velocity Flow
0
Primary Variable
0
67
Volumetric Flow
0
Primary Variable
0
66
Mass Flow
0
Primary Variable
0
72
Volume Flow Totalizer
1
Secondary Variable
1
68
Mass Flow Totalizer
1
Secondary Variable
1
71
Flow User Full Scale
2
Tertiary Variable
2
67
Flow User Full Scale
2
Tertiary Variable
2
66
Flow K-Factor
3
Quaternary
3
83

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Primary Variable is mapped to Velocity, Volumetric, Mass Flow, depending on the selection of
Primary Variable units.
Secondary Variable is mapped to standard or normalized Volume Totalizer or Mass Totalizer Flow,
depending on which value is mapped to Secondary Variable.
Tertiary Variable is mapped to standard or normalized Flow User Full Scale for Velocity,
Volumetric, and Mass Flow, depending on the selection of Primary Variable units.
Quaternary Variable is mapped standard or normalized to K-factor for Velocity, Volumetric, and
Mass Flow.
640S/780S Common Practice HART Commands
640S/780S Command List
Command Number and
Function
Data In Command
Data In Reply and Size
1 Read Pv
Read Variable Flow Value, and Flow
Units
Byte 0 PV unit code
Byte 1-4 Primary variable
2 Read Current & Percentage Of
Range
Read Primary Variable
Byte 0-3 current (mA)
Byte 4-7 % of range
3 Read Current & Four Variables
Flow Totalizer
User Full Scale
K-Factor
Byte 0-3 Current
Byte 4 PV unit code
Byte 5-8 PV
Byte 9 SV unit Code
Byte 10-13 SV
Byte 14 TV unit Code
Byte 15-18 TV
Byte 19 FV unit Code
Byte 20-23 FV
12 Read Message
None
Byte 0-23 message
13 Read Tag Descriptor, Date
None
Byte 0-5 Tag A
Byte 18-20 date D
14 Read PV Sensor
Flow Value
Byte 4-7 Upper sensor limit
Byte 8-11 Lower sensor limit
Byte 12-15 Minimum span
15 Read PV Output Information
Flow Value
Byte 2 Range values unit code
Byte 3-6 Upper range value
Byte 7-10 Lower range value
16 Read Final Assembly Number
None
Byte 0-2 final assembly number
38 Reset Configuration Changed Flag
None
None
42 Master Reset
None
None
48 Read Additional Transmitter
Status
None
Byte 0-1 = status
Byte 2 = com status
50 Read Dynamic Variable
Assignments
Flow for PV
Totalizer for SV
U/F for TV
K-Factor for FV
Byte 0 Device Variable Code for PV
Byte 1 Device Variable Code for SV
Byte 2 Device Variable Code for TV
Byte 3 Device Variable Code for TV
148 Read Device Variable Upper
Range
User Full Scale for TV
Byte 1-4 Upper Range data

9
Drawings
See drawings below for Analog output and HART Connection.
Figure 1 Point to point with Non-Isolated 4-20 mA loop
Figure 2 Point to point with Isolated 4-20 mA loop

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Figure 3 Multi-drop, digital signal only, 4-20mA must be set to a fixed 4 mA (Consult factory).