Thermal Mass Flow Meter Manual for Sage 100 -200-300

Thermal Mass Flow Meter Manual for Sage 100 -200-300
SAGE THERMAL GAS MASS FLOW METER
User Manual
100/200/300 Series
DOCUMENT NUMBER 100-0316
Make the Wise Choice.
Choose Sage Flow Meters.
SAGE METERING, INC.
8 Harris Court, D1
Monterey, CA 93940
1-866-677-SAGE (7243)
Tel 831-242-2030
Fax 831-655-4965
www.sagemetering.com
User Manual
SAGE METERING, INC.
3
Table of Contents
Introduction
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SECTION A
Getting Started
Unpacking Your Sage Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Locating Proper Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Insertion Flow Meter Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Sage Valve Assembly Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Flow Conditioning and Straight Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Compression Fitting Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Captive Flow Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Probe Insertion Guideline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Installation Depth Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Large Duct or Stack Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
In-line Flow Meter Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electric Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Output Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SECTION B
Styles & Features
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Styles & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Sage Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SECTION C
Drawings
Integral Style Flow Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Remote Style Flow Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Remote Bracket Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Mounting Hardware:
SVA05 Series Isolation Valve Assembly for Insertion Meters . . . . . . . . . . . . 36
STCF Series Teflon Ferrule Compression Fitting . . . . . . . . . . . . . . . . . . . . . . 36
SVA05 Series Isolation Valve Assembly Detail . . . . . . . . . . . . . . . . . . . . . . . . 36
Mounting Plate for Thin Walled Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SVA05LP Low Pressure Isolation Valve Assembly. . . . . . . . . . . . . . . . . . . . . . . . 37
In-Line and Insertion Flanges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SECTION D
Diagnostics
Common Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
continued on next page
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4
SAGE METERING, INC.
SECTION E
Warranties and Service Work
User Manual
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Cancellation/Return Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Returning Your Sage Flow Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Return Material Authorization Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
SECTION F
Modbus
Modbus Register Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Modbus Protocol & Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Sage Register Output Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Sage Addresser Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Sage Addresser Typical Printout (Version 3.14) . . . . . . . . . . . . . . . . . . . . . . . . . 59
SECTION G
Appendix
Sage Service Department “Dongle” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Correction Factors For Varying Gas Mixes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Installations Where Pipe Condensation May Develop . . . . . . . . . . . . . . . . . . . 64
J-Box and Upstream Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
What Is a Thermal Mass Flow Meter? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
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User Manual
SAGE METERING, INC.
5
Welcome
We are pleased that you have purchased a Sage Metering Mass Flow Meter for your
requirement. We hope that you are satisfied with the performance, operation and
design of our highly precise, NIST traceable Thermal Gas Mass Flow Meter.
Sage Metering is your source for monitoring, measuring and controlling the gas mass
flow in your industrial process, building management system or environmental application. Our high performance, NIST Traceable,Thermal Mass Flow Meters will help
increase productivity, reduce energy costs, maximize product yields, and/ or help reduce
environmental insult. Sage provides high quality In-Line and Insertion Thermal Mass
Flow Meters for a wide variety of industrial, commercial, and environmental monitoring
needs, including carbon credit verification for Greenhouse Gas reduction.
Sage Meters measure mass flow directly — there is no need for ancillary instrumentation
such as temperature or pressure transmitters. Furthermore, our instruments have exceptional signal sensitivity, have no moving parts, require little if any maintenance, have
negligible pressure drop and have a turndown up to 100 to 1, and resolve as much as
1000 to 1. Sage Flow Meters can measure the mass flow rate and consumption of air,
oxygen, natural gas, nitrogen, digester gas, biogas, flare gas, hydrogen, argon, carbon
dioxide and other gases and gas mixes.
The Sage 100/200/300 family of thermal mass flow meters is an addition to the wellknown Sage Prime. These products provide the same performance as the Prime with
fewer features and less functionality at a more economical pricing. The 100 is the basic
integral design without display. The 200 and 300 Series are available with and without
display and with integral and remote electronics. The display provides a reading of
the flow rate, total flow, and gas temperature. The 300 series is intended for use by
customers in the United States and Canada with the 200 series used for international
customers. The following table lists the various model combinations:
DISPLAY
INTEGRAL/REMOTE
ELECTRONICS
111
No
Integral
201/301
Yes
Integral
202/302
Yes
Remote
211/311
No
Integral
212/312
No
Remote
All units provide a 4-20 mA and a pulse signal. Modbus RS485 RTU is optionally available.
The 200 and 300 series use either 24 VDC or 115/230 VAC input power while the 100
Series is only 24VDC.
REV. 1-0215
6
SAGE METERING, INC.
Please let us know if we can assist you in any way with your Sage Meter, or if you
have any questions about its installation, operation, or features. Simply phone us
at 866-677-SAGE (7243), or visit our website at www.sagemetering.com to contact
a factory representative in your area. This manual is available on the website under
Knowledge Base section.
Sincerely,
Robert Steinberg
President
REV. 1-0215
User Manual
Section A
GETTING STARTED
User Manual
SAGE METERING, INC.
9
Getting Started
UNPACKING YOUR SAGE METER
buildup may be required. A soft brush can be used
to gently clean the sensing element’s surface, using
Your Sage flow meter is a sensitive, yet rugged,
caution to avoid damaging the sensor elements
precision built electronic instrument. Upon delivery,
(the RTDs). If any disassembly is necessary, contact
care should be taken when opening the shipping
Sage Metering, Inc. for instructions. In general, it is
container and removing your meter. The meter
recommended that your Sage Thermal Mass Flow
should be inspected for any damage that may have
Meter be returned to the factory if cleaning,
occurred during transit. If damage is found, please
repair, or recalibration is needed. This is usually
contact the carrier immediately to place a claim for
the most cost-effective and reliable alternative.
damaged goods. The contents of the container
should be checked against the packing list for any
CALIBRATION
discrepancies. If there are any questions as to the
contents or configuration of the equipment includ-
Each flow meter is individually calibrated for the
ing calibration ranges, or, mounting hardware,
specified gas and flow rate specified on the applica-
contact Sage Metering as soon as possible. Please
tion sheet submitted with each order. The unit is
save shipping container and packaging materials
factory configured for the process and installation
(including PVC tube probe protector on Sage
parameters. A Certificate of Conformation is includ-
Insertion Flow Meters) in case the unit needs to
ed with each unit.
be returned for any reason.
MAINTENANCE
Sage thermal mass flow meters essentially require
little or no maintenance. While the sensing element
is somewhat resistant to dirt and particulate build
up, it may become necessary to clean it from time to
time if mounted in extremely dirty environments.
NOTE: ALWAYS REMOVE THE POWER PRIOR TO
ANY CLEANING OR MAINTENANCE. A detergent or
appropriate non-corrosive solvent for removing the
a
a
a
CAUTION cable glands shipped with unit are for shipping purposes only.
Remove shipping cable glands before installing.
CAUTION If installing in a Class I hazardous location the installation
must comply with appropriate electrical codes.
CAUTION Installer must supply proper ground and bond wire for the
transmitter and the sensor per appropriate electrical codes
REV. 1-0215
10
User Manual
SAGE METERING, INC.
INSTALLATION AND MOUNTING
The EN 60079-14 must be considered
LOCATING PROPER WIRING DIAGRAM
See pages 18–22 for electrical wiring of the Sage
■
Check the Certificate of Conformance included
Prime. There is an illustration in the electronics
with your Sage Thermal Mass Flow Meter for
cover which shows wiring connections.
system pressure, temperature, gas composition,
power input, and signal output.
■
See page 18 for a wiring diagram of the DC or AC
It is recommended that the flow meter be inserted in
input power. Page 19 and 20 give wiring connec-
a location of maximum straight run. It is suggested
tions for the output signals. For units with remote
that there be a minimum of 15 pipe diameters of
electronics, the wiring in the electronics enclosure
straight run upstream, and 5 diameters downstream,
is made at Sage Metering; page 21 gives wiring illus-
depending on the conditions. See chart on page 11.
tration for wiring the cable at the remote terminal
Note, obstructions such as valves, blowers, expand-
enclosure.
ers and PVC and HDPE pipes will require additional straight run (contact factory for assistance).
■
Note: Do not open the display side of the enclosure.
Check the orientation1: Standard calibration flow
direction is left to right when facing the flow
meter. Gas flow direction is marked with an arrow
on in-line flow meters; UPSTREAM is marked on
insertion probes.
■
Do not rotate probe1, or errors may occur. If enclosure is facing incorrectly, rotate the enclosure 180˚,
but do not rotate the probe. The UPSTREAM mark
still needs to be facing Upstream.
■
Hook up the system per the wiring diagram provided with your Sage flow meter (see inside of rear
compartment cover for terminal designation).
Double check that wiring for the proper power and
signal connections are correct.
■
Check that all plumbing and electrical hook-ups
are in accordance with OSHA, NFPA, and all other
safety requirements.
■
For Remote Style Meters be sure the Remote
Electronics is matched with the Transmitter’s
Junction Box and its attached Probe or Flow
Body. There will be Metal Serial Number Tags
on both the Transmitter as well as the Remote
Electronics enclosure. Do not mismatch the serial numbers of the Remote Electronics and the
Junction Box, or calibration errors will occur.
REV. 1-0215
1 The Integral Style Insertion Meters have the Display oriented as shown on page 14. If an alternate
orientation of the display, or enclosure is required (ie. installation into a vertical pipe), please furnish
a sketch or drawing, and specify “ROTATE” on purchase order. However, if it is later determined that
the enclosure needs to be rotated, that procedure can be done in the field. However, if the display
needs to be rotated, then the meter must be sent back to Sage to be modified. Do not attempt this in
the field. An RMA will be required prior to returning the meter (see page 50). The procedure for
rotating the enclosure is as follows: Clamp the enclosure in a vise with the probe pointing up to the
ceiling. Then take a 7/8 wrench and turn the probe to the proper orientation. Lock the probe into its
new position with a set screw (not provided).
User Manual
SAGE METERING, INC.
11
Insertion Flow Meter Application
FLOW PROFILE AND INSTALLATION
CONSIDERATIONS
Insertion Flow Meters, although generally easier to
install that In-Line Flow Meters, require proper
installation, and a well developed flow profile, in
order to perform properly. Please refer to the section
on the following pages titled PROBE INSERTION
GUIDELINE DRAWING (page 14) and INSTALLATION DEPTH CHART (page 15).
insertion probe will be inserted. Avoid T-Fittings
since they will disturb the flow profile, and effectively reduce the measurement area. Direct threading together (or with necessary bushings) of the
retractor assembly may be required. In other cases,
the threadolet must be welded in place and a clearance hole must be drilled through the pipe/ duct to
accept the probe assembly. If the pipe/duct is under
pressure during installation, a hot tap drill (not
available through Sage Metering) may be required.
SAGE VALVE ASSEMBLY OPERATION
Valve assemblies (SVA05 and SVA05LP) are an optional mounting hardware for Insertion Style Flow
Meters (see pages 36 and 37). They allow the removal
of insertion-style meters for service, cleaning, recalibration, relocation, etc. without the need to “shutdown” your process. The probe insertion depth is
adjustable to permit sensor to be located at center
to optimize measurement accuracy. (Refer to PROBE
INSERTION GUIDELINE DRAWING and CHART, pages
14 & 15.) The ball valve will seal off leaks of the
process gas at the point of insertion after the probe
assembly has been removed. The assembly includes
FLOW CONDITIONING AND STRAIGHT RUN
Although a minimum of 15 pipe diameters of
upstream straight run is commonly recommended,
to absolutely assure that the flow profile is well
developed at the point of measurement, either use
Flow Conditioners (standard in Sage In-Line Flow
Meters, 1/2" and larger, and also available as assemblies for Insertion Flow Meters, see page 13), or
consider additional straight run. The Chart below
provides examples of the amount of straight run
that would virtually assure that there are no flow
disturbances at the point of measurement.
a valve, threadolet, compression fitting with Teflon
ferrule, a cable restraint, and two collar clamps.
IMPORTANCE OF FLOW CONDITIONING
Recommended Pipe Diameters Upstream
A threaded half coupling (3/4" FNPT) properly sized
to accommodate the isolation valve retractor assem-
WITHOUT
FLOW CONDITIONING
WITH FLOW
CONDITIONING1
Minimum Industry
Recommendation
Sage
Recommendation
One 90˚ Elbow
15
3
Two 90˚ Elbows
in the same plane
20
5
Two 90˚ Elbows
in different planes
At least 40
9
4:1 Area Reduction
15
3
4:1 Area Expansion
At least 30
10
Multiple Disturbance
To Be Determined
TBD
DISTURBANCE
bly must be fitted to the pipe/duct to which the
NOTE:
Detailed
Drawings
are shown
on pages
36 & 37.
1 This column applies to In-Line Flow Meters, which come standard with built-in Flow Conditioners, as well as Insertion Meters,
when provided with upstream Captive Flow Conditioners (see page 13).
REV. 1-0215
12
User Manual
SAGE METERING, INC.
COMPRESSION FITTING OPERATION
INSTALLATION INSTRUCTIONS
A bored through tube fitting, properly sized to
1. Insert tubing into the tube fitting.
accommodate an insertion probe’s particular OD,
can be provided by the user or purchased as an
option from Sage Metering (see page 36). Prior to
installation, a clearance hole to accommodate the
insertion probe assembly must be drilled in the
2. Make sure that the tubing is positioned properly
per the PROBE INSERTION GUIDELINE DRAWING AND CHART, pages 14 & 15.
3. Due to the variations of tubing diameters, a
pipe/duct. A fitting (1/2" FNPT) is then welded in
common starting point is desirable. Therefore,
place or threaded into the half-threadolet which has
tighten the nut until the tubing will not turn
been welded to the pipe/duct. The probe insertion
by hand or move axially in the fitting.
depth is adjustable to permit sensor to be located at
4. Scribe the nut at the 6 o’clock position.
center, to optimize measurement accuracy. (Refer to
PROBE INSERTION GUIDELINE DRAWING and
CHART, pages 14 & 15.)
5. While holding fitting body steady, tighten the nut
11⁄4 turns to the 9 o’clock position.
Insert the probe shaft tubing into the
compression fitting to the position indicated
in the Probe Insertion guidelines.
While holding the fitting body steady,
tighten the nut one and one-quarter
turns to the 9 o’clock position.
REV. 1-0215
User Manual
SAGE METERING, INC.
CAPTIVE FLOW CONDITIONERS
Can Be Installed in Conjunction with Insertion Style Flow Meters
IMPORTANT The location of the probe must be exactly one pipe ID diameter (i.e., 4” in a 4” pipe; 6” in
a 6” pipe, etc.) downstream of the Captive Flow Conditioning assembly. The Captive Flow Conditioners
are always designed to be separated by one pipe diameter. See drawing below. The probe location must
be one pipe ID diameter downstream of Flow Conditioner, or errors will occur.
Front View of one of the Conditioning Plates
One Pipe
Diameter
Note: See table on page 11
(last Column) for Straight Run
Requirement
Largest of the
Two Perforated
Plates
Straight Run Requirement
from this Flange
One Pipe
Diameter
FLOW
ANSI Class Flanges
(user supplied)
Flow Conditioning
Assembly is
inserted here.
NOTE: The larger of the two perforated plates of the Sage
Flow Conditioning assembly is positioned between two flanges
and two gaskets as shown. The smaller of the two perforated
plates of the conditioner will freely slide into the application
pipe, facing downstream. The probe mounting hardware will be
placed one diameter downstream of the downstream plate.
Probe location must be one pipe ID diameter downstream of
Flow Conditioners or errors will occur.
Gaskets
13
14
User Manual
SAGE METERING, INC.
PROBE INSERTION GUIDELINE DRAWING1
Sage insertion style flow meters can be assembled
and calibrated for use in virtually any size pipe or
Choose the longest straight-run section of pipe available to allow a uniform, well-developed flow profile.
Allow for a minimum of 15 pipe diameters of straight
run upstream, and 5 diameters downstream, depending on the conditions. See chart on page 11. Note,
obstructions such as valves, blowers expanders and
PVC and HDPE pipes will require additional straight
run (contact factory for assistance). Avoid, if possible,
installations immediately downstream of bends, fans,
nozzles, heaters and especially valves, or anything
else installed in the line that may cause nonuniform
flow profiles and swirls. Otherwise signal output
duct (as small as 1”). Sage insertion flow meters
include a probe assembly that supports the sensing
element (a self-heated flow sensor and a temperature/reference sensor); a sensor drive circuit; microprocessor meter board, and transmitter enclosure.
The probe assembly must be inserted into the correct
position in the process gas flow conduit to allow the
gas to flow through the sensor “window” across the
sensor element. The “sensing point” or active part of
the sensor (0.5" from the end of the probe) should be
positioned as per the drawing below and the
Installation Depth Chart on page 15.
errors could result, unless significantly more straight
run is provided, or in the absence of sufficient straight
run, Flow Conditioners (page 13) are installed (contact Sage for assistance if needed). Refer to page 13 to
see the benefits of incorporating Flow Conditioners.
Installation Depth
The center of the pipe (assuming a well developed
turbulent flow profile) is fairly flat, and easy to
locate. See “Installation Depth Chart” on next page
to determine proper insertion depth.
Insertion styles are available through Sage Metering,
Inc. with a standard 1/2" OD probe support assembly; 3/4" is also available. Standard probe lengths
are 6", 12", 15", 18", 24", 30", 36" and 48". A common
method of mounting the probe assembly through
a pipe wall or duct (if ambient air) is with a compression fitting (STCF05). A Sage valve assembly (SVA05)
is useful and highly recommended for
pressurized applications or other gases,
such as Natural Gas. Flange mounting
Z
is optionally available.
4" PIPE SHOWN
Y
Center
of Pipe
X
REV. 1-0215
LESS THAN IDEAL LOCATION
GOOD LOCATION2,3
Contact Factory for Assistance
(See Installation Depth Chart for X and Y Dimension)
1. Industrial Meter shown in drawing. Note, probe is not bi-directional.
2. Probe should be inserted per Installation Depth Chart (see following page),
so sensors are in the center of the pipe.
3. The portion of the probe that remains outside of the pipe, is simply the factory
ordered probe length (i.e. “-15” = 15 inches) minus the “Y” dimension.
User Manual
SAGE METERING, INC.
15
INSTALLATION DEPTH CHART
Methods for Probe Insertion to Pipe Center
METHOD 1
METHOD 2
Using charts below, select pipe size (column 1),
Using charts below1, select pipe size (column 1),
determine X. Insert probe until the end touches the
determine Y. Subtract Y from the factory supplied
bottom of the pipe (ID), mark probe as it exits top
probe length. That difference Z (see drawing on page
of fitting. Lift probe distance “X” and tighten com-
14) should be outside of the pipe, and is measured
pression fitting.
from the bottom of the enclosure of the probe weld
to pipe OD.
1 For other Pipe Schedules, such as Schedule 10, contact Sage, however the Y dimension will
be the same for any Schedule Pipe
2 The 1" Pipe Size needs to have the Probe “Bottomed Out” (option “BOT"); the calibration
method for the 11⁄2 " Pipe is either as shown below, or with option “BOT”
S C H E D U L E 4 0 P I P E2
PIPE SIZE
1"
OD
ID
X
C O N S U L T
SCHEDULE 80 PIPE2
Y
PIPE AREA
F A C T O R Y
PIPE SIZE
1"
OD
ID
X
C O N S U L T
Y
PIPE AREA
F A C T O R Y
1.5"
1.900
1.610
.20"
1.56"
0.0141
1.5"
1.900
1.500
.15"
1.56"
0.0123
2"
2.375
2.067
.40"
1.82"
0.0233
2"
2.375
1.939
.35"
1.82"
0.0205
2.5"
2.875
2.469
.60"
2.07"
0.0332
2.5"
2.875
2.323
.55"
2.07"
0.0294
3"
3.500
3.068
.90"
2.38"
0.0513
3"
3.500
2.900
.80"
2.38"
0.0459
4"
4.500
4.026
1.40"
2.86"
0.0884
4"
4.500
3.826
1.30"
2.86"
0.0798
6"
6.625
6.065
2.40"
3.95"
0.2006
6"
6.625
5.761
2.25"
3.95"
0.1810
8"
8.625
7.981
3.40"
4.90"
0.3474
8"
8.625
7.625
3.25"
4.90"
0.3171
10"
10.750
10.020
4.40"
6.00"
0.5476
10"
10.750
9.750
4.25"
6.00"
0.5185
12"
12.750
11.938
5.50"
7.00"
0.7773
12"
12.750
11.374
5.13"
7.00"
0.7056
14"
14.000
13.124
6.00"
7.50"
0.9394
14"
14.000
12.500
5.70"
7.50"
0.8522
16"
16.000
15.000
7.00"
8.60"
1.2272
16"
16.000
14.312
6.60"
8.60"
1.1172
18"
18.000
16.876
8.00"
9.60"
1.5533
18"
18.000
16.124
7.50"
9.60"
1.4180
24"
24.000
22.625
10.75"
12.60"
2.7919
24"
24.000
21.562
10.25"
12.60"
2.5357
16
User Manual
SAGE METERING, INC.
Large Duct or Stack Applications
CONFIGURATION FOR UTILIZING FOUR (4) SAGE INSERTION MASS FLOW METERS FOR LARGE ROUND
PIPES OR DUCTS LARGER THAN 36" TO MINIMIZE EFFECTS OF VARYING FLOW PROFILES
(It is recommended that Factory be contacted to assist with applications of this nature)
1/2" NPT
User Entry
for Wiring
1/2" NPT
User Entry
for Wiring
3/4" NPT for
Probe Support
3/4" NPT for
Remote Cable
3/4" NPT for
Remote Cable
The outputs of the four meters will be averaged
by customer’s PLC or other method to improve
overall accuracy in measuring the flow rate.
(For medium sized round pipes [18" to 36"],
two meters, on the opposite side of the same
diameter, may be sufficient [insert parallel to an
upstream 90 degree bend for optimal benefit.])
Note, in this configuration, each sensor needs
to be averaged.
REV. 1-0215
User Manual
SAGE METERING, INC.
17
In-Line Flow Meter Application
ing, flanging, welding, etc. DO NOT USE REDUCERS.
IN-LINE FLOW METERS
In-line mounting styles are available through Sage
Metering, Inc. in sizes from 1/4" pipe through 4"
pipe. Threaded male NPT ends are standard up to
2-1/2"; ANSI 150lb flanged ends are recommended
for 3" and 4" models. Contact the factory if optional
end mounting styles are required. Pipe sizes in excess
of 4" require the insertion style mass flow meter.
The in-line style flow meter assembly flow section is
typically specified to match the user’s flow conduit
and is plumbed directly in the flow line by thread-
It includes the sensing element (a self-heated flow
sensor and a temperature/reference sensor) mounted
directly in the specified flow section for exposure to
the process gas; a sensor drive circuit; microprocessor
meter board, and transmitter enclosure.
All in-line Flow Meters, 1/2" and up have built-in
Flow Conditioners. See Table (page 11) for Upstream
Straight run requirements. Note, the 1/4" and 3/8"
do not have Flow Conditioners and thus require
more straight run.
FLOW CONDITIONING SCREENS FOR IN-LINE FLOW BODIES 1/2" AND UP1
LENGTH “L” SAME AS NON-FLANGED METER
(See table on page 33. For example, 1"x8" flow
body has an 8" length.The length will be the same
whether an NPT flow body, or whether flanged.
If a flanged flow body, the 8" dimension will be
a Face-to-Face dimension.)
Screens shown
with NPT fitting.
1 Note, Flow conditioning is also available for Insertion Meter applications (see page 13)
REV. 1-0215
18
User Manual
SAGE METERING, INC.
Electrical Wiring
All wiring connections are made in the terminal
of the wiring connections is found on the inside of
block compartment of the enclosure. An illustration
the rear cover.
INSIDE COVER VIEW
WIRING
COMPARTMENT
NO CUSTOMER ACCESS
DO NOT OPEN THIS SIDE
1
2
3
4
5
6
A
RED
S1
RED
WHITE
S2
WHITE
B
AC1
AC2
SPARE
4-20mA PWR
C
COM
B+
A–
1
2
3
24 VDC
4
PULSE
4-20mA 5
VDC GND 6
VDC IN
+
VDC GND
–
INTEGRAL
1/2" NPT
1
2
3
4
5
6
A
B
RED
AC1
GREEN
AC2
BLUE
SPARE
WHITE 4-20mA PWR
BLACK
VDC IN
ORANGE VDC GND
C
COM
B+
A–
24 VDC PULSE
4-20mA
VDC GND
1
2
3
4
5
6
REMOTE
INPUT POWER
The Sage Prime requires supplemental power in the
connections are made at the green grounding screw
form of 24 VDC or 115/230 VAC. Power require-
located adjacent to the terminals. Hazardous Area
ments at 24 VDc is 2.4 watts. The AC and DC ground
approval is only available on 24 VDC units.
AC POWER
AC1–B1
115/230 VAC
Input Power
AC2–B2
OR
+
B5
–
B6
24 VDC
Input Power
REV. 1-0215
Ground
115
230
AC1
Line
Phase A
AC2
Neutral
Phase B
User Manual
SAGE METERING, INC.
19
Output Wiring
NOTE: FOR UNITS WITH HART COMMUNICATION SEE PAGE 63 FOR ELECTRICAL
WIRING CONNECTIONS OF THE 4-20 mA SIGNAL AND PULSE OUTPUT.
Both a 4-20 mA and a pulse output are available.
These outputs can be either externally or internally
powered. The pulse and 4-20 mA outputs both share
the same power, so both will be internally powered
or externally powered.
4-20 mA AND PULSE OUTPUT USING SEPARATE EXTERNAL POWER SUPPLIES
NOTE: Both power
supplies must operate
at same voltage.
Pulse
+
B4
Remove jumper
between B4 and B5
if present
Power Supply
(8–36 VDC)
C4
–
4–20 mA
C5
–
+
B4
Power Supply
(8–36 VDC)
4-20 mA AND PULSE USING ONE EXTERNAL POWER SUPPLY
+
B4
Power Supply
(8–36 VDC)
–
Pulse
Remove jumper
between B4 and B5
if present
C4
C5
4–20 mA
PULSE OUTPUT
is 250 ms. Externally powered voltage can range
between 8 and 36 VDC with load not exceeding 100
mA. Internally powered voltage will be 24 VDC +/–
10%. Minimum voltage is 1 VDC.
24 VDC if
internally supplied
Volts DC
The pulse output is 0–10 Hz. The default pulse width
1 VDC
0 VDC
REV. 1-0215
20
User Manual
SAGE METERING, INC.
INTERNALLY POWERED 4–20 mA AND PULSE
NOTE: If using internally
powered 4–20 mA and
pulse the output is not
isolated.
Jumper between
B4 and B5 must
be present
Pulse
+
+
–
C4
C5
C6
MODBUS CONNECTIONS
Modbus RS485 RTU is available as an option.
C1 RS485 Ground
C2 RS485 +
C3 RS485 –
INTEGRAL ELECTRONICS SENSOR CONNECTIONS
Wiring between the sensor and the electronics is
completed and tested by Sage. These connections are
rarely accessed by the user.
Red
Red
White
White
REV. 24-SIP/SRP
4–20 mA
User Manual
SAGE METERING, INC.
21
REMOTE CABLE WIRING
Used to connect the main electronics with remote sensor.
Blue
Green
Red
Red
Orange
Green
Black
Blue
White
Red
White
Black
Red
Orange
White
White
NOTE: Serial numbers of
the remote electronics
must match serial number
of main electronics.
3/4" NPT
Remote Cable
Entry to Wiring
Compartment
REV. 1-0215
Section
B
STYLES AND FEATURES
User Manual
SAGE METERING, INC.
25
Principle of Operation of the Thermal Mass Flow Meter
Sage Thermal Mass Flow Meters have two sensors
constructed of reference grade platinum windings
It is essential that this constant temperature differ-
(RTDs). The two RTDs are clad in a protective 316SS
ential be maintained, even if there are wide fluctua-
or Hastelloy C sheath and are driven by a proprietary
tions in gas temperature. It is the function of the
sensor drive circuit. One of the sensors is self-heated
Sage hybrid-digital proprietary sensor drive circuit to
(flow sensor), and the other sensor (temperature/ref-
maintain the differential, whether or not the gas
erence sensor) measures the gas temperature. The
temperature changes, or however quickly molecules
pair is referred to as the sensing element, and is
cool off the flow sensor. It is also necessary to proper-
either installed in a probe as an Insertion style, or
ly calibrate the device with the actual gas (or close
inserted into a pipe section as an In-Line style flow
equivalent with certain gases), in the Sage National
meter.
Institute of Standards certified (NIST) calibration
facility. By accomplishing these two critical objec-
As gas flows by the flow sensor, the gas molecules
tives, the Sage meters provide an extremely repeat-
carry heat away from the surface, and the sensor
able (0.2% of Full Scale) and accurate output directly
cools down as it loses energy. The sensor drive
proportional to the mass flow rate of the gas being
circuit replenishes the lost energy by heating the
measured.
flow sensor until it is a constant temperature differential above the reference sensor. The electrical
power required to maintain a constant temperature
differential is directly proportional to the gas mass
flow rate and is linearized to be the output signal
of the meter.
FLOW SENSOR
(Self Heated)
TEMPERATURE SENSOR
(Reference Sensor)
REV. 1-0215
26
User Manual
SAGE METERING, INC.
Features and Benefits
SAGE 100/200/300 THERMAL MASS FLOW METER
The Sage 100/200/300 series of products provide
the same levels of performance as the Sage Prime
with fewer features and more economical pricing.
The units are agency approved1 for use in Class I,
Division 2 hazardous areas and are CE approved.
The series 200 and 300 are available with 24 VDC
or 115/230 VAC input power. The power dissipation
is under 2.5 watts (e.g. under 100 mA at 24 VDC).
These units have output of a 4-20 mA signal and
pulse output of total flow. Modbus RTU with RS-485
communication is optionally available. The Modbus
can be used for both daisy chain communication
and reconfiguration of the parameters.
The Sage 200 and 300 series are designed for integral
and remote electronics. The remote design has leadlength compensation which permits cable lengths up
to 1000 feet (300 meters) incorporating a NEMA 4
and Explosion proof junction box. All products are
capable of being used with either the ½" insertion
probe in pipes 1" and larger or the in-line flow body
with sizes from ¼" to 4".
enclosure is made at Sage Metering; page 21 gives
wiring illustration for wiring the cable at the remote
terminal enclosure.
MAJOR BENEFITS OF THERMAL MASS FLOW METERS
■
■
■
■
■
■
■
■
SPECIFIC BENEFITS OF THE SAGE 100/200/300
■
Both the 200 and 300 are available with a display and
window or as a blind version. The low cost 100 series is
only available in a blind configuration. The display provides the reading of flow rate, total flow and gas temperature. All units are calibrated in Sage measurements’s NIST traceable calibration facility come preconfigured from Sage with the specified process and
installation parameters.
■
■
■
■
As with the Sage Prime, the 100/200/300 series use a
two compartment compact housing with a separate
wiring section containing large, easy to access terminals to simplify field wiring.
■
■
The 300 Series is used for Domestic use while the 200
Series addresses the International Market.
■
LOCATING PROPER WIRING DIAGRAM
See pages 18–22 for electrical wiring. There is an illustration in the electronics cover which shows wiring
connections. See page 18 for a wiring diagram of the
DC or AC input power. Pages 19 and 20 give wiring
connections for the output signals. For units with
remote electronics, the wiring in the electronics
REV. 1-0215
Direct Mass Flow – No need for separate temperature or pressure transmitters
High Accuracy and Repeatability – Precision measurement and extraordinary repeatability
Turndown of 100 to 1 and resolution as much as
1000 to 1
Low-End Sensitivity – Measures as low as 5 SFPM
(e.g., 1 SCFM in a 6" pipe)
Negligible Pressure Drop – Will not impede the
flow or waste energy
No Moving Parts – Eliminates costly bearing replacements, and prevents undetected accuracy shifts
Dirt Insensitive – Provides sustained performance
Ease of installation and convenient mounting
hardware
■
■
■
Compact design of enclosure is only 41⁄8" dia. by
41⁄4" deep (DC Models)
Display shows Flow Rate, Total Flow and Process
Temperature
Proprietary digital sensor drive circuit provides
enhanced signal stability and unaffected by
process temperature & pressure changes
Modbus compliant RS485 RTU communications
(optional)
Isolated 4-20 mA output and pulsed output of
Totalized Flow
Rugged, user-friendly packaging with easy terminal
access
Remote Style has Lead-Length Compensation.
Allows remote electronics up to 1000 feet from
probe; Explosion Proof Junction Box has no
circuitry, just terminals
Low power dissipation, under 2.5 Watts (e.g. under
100 ma at 24 VDC)
Field reconfigurability via optional Addresser software
Flow conditioning built into In-Line flow meters
(1/2" and up)
Captive Flow Conditioners for Insertion meter
applications, if required
1 Only available on 24 VDC powered meters
User Manual
SAGE METERING, INC.
27
Sage 100/200/300 Styles and Specifications
Sage Metering is your source for monitoring, measuring and controlling the gas mass flow in your
industrial process, building management system or
environmental application. Our high performance,
NIST Traceable, Thermal Mass Flow Meters will help
increase productivity, reduce energy costs, maximize
product yields, and/or help reduce environmental
insult. Sage provides high quality In-Line and
Insertion Thermal Mass Flow Meters for a wide variety of industrial, commercial, and environmental
monitoring needs, including carbon credit verifica-
tion for Greenhouse Gas reduction.
Our experienced application engineers, many
of whom have worked in the Thermal Mass Flow
marketplace since its inception, will assist you in
choosing the proper gas Flow Meter for your application – and they will be pleased to offer installation
guidance to assure that the meter(s) selected will
perform as accurately as possible. Additionally, our
Service Staff stand ready to support you with any
after-sale assistance that you may require.
100/200/300 SERIES INTEGRAL
200/300 SERIES REMOTE
Mounting
Hardware
(included)
Optional SVA05 Isolation Valve Assembly
PERFORMANCE
REMOTE STYLE ELECTRONICS
Standard accuracy is +/– 0.5% of Full Scale +/– 1% of reading with a
turn-down of 100 to 1 and resolution as much as 1000 to 1. Repeatability
is 0.2%. The electronics has an isolated 4 to 20 mA output proportional
to Mass Flow Rate as well as pulsed outputs of Totalized Flow. Modbus
RS485 RTU communications is optional.
Remote Junction Box is Explosion Proof (Class 1, Div 1, Groups B, C, D), and does not have
any electronics – only a wiring terminal block. The Junction Box is connected to the
Remote Electronics by 25 feet of lead-length compensated cable. The cable (6-conductor)
can be lengthened or shortened without affecting accuracy (max loop resistance 10 ohms,
over 1000 feet), if grounded properly.
X
X
Insertion Probe2
In-Line Flow Body1,3,4
Insertion Probe2
In-Line Flow Body1,3,4
Flow Element is In-Line Style consisting of a
choice of 316 Stainless Steel Schedule 40 Flow
Bodies sized from 1/4" x 6" long to 4" x 12" long
Flow Element is Insertion Style, consisting of
a 1/2" OD probe with lengths up to 36" long
suitable for insertion into the center of a
process pipe
Flow Element is In-Line Style consisting of a
choice of 316 Stainless Steel Schedule 40 Flow
Bodies sized from 1/4" x 6" long to 4" x 12" long
1 Male NPT ends are standard, with flanged ends, tube, or butt weld optionally available
2 Mounting hardware such as Isolation Valve Assemblies, Compression Fittings, and Flanges,
are optional
3 Chart of Flow Body length “X” is on Application Data Sheet on website as well as in the
User Manual
4 Flow Conditioners are built into In-Line Style Flow Bodies from 1⁄2" to 4"
Flow Element is Insertion Style, consisting of a
1/2" OD probe (3/4" optional) with lengths up to
36" long (typically 15" long) suitable for insertion
into the center of a process pipe
®
®
REV. 1-0215
28
User Manual
SAGE METERING, INC.
Sage Display
1
2
3
1
2
3
4
5
6
7
8
REV. 1-0215
6
7
8
4
5
Gas Temperature
Flow Rate
Totalized Flow
Engineering units of Flow Rate
Engineering units of Totalized Flow
Flashes with each pulsed output of consumption
Indicates original Modbus is being transmitted
Indicates optional Modbus is being received
User Manual
SAGE METERING, INC.
29
Approvals
HAZARDOUS LOCATION APPROVALS
SAGE METERING, INC. 8 HARRIS CRT. BLD. “D”
MONTEREY, CA. 93940/ THERMAL MFM
Year of
All 24 VDC Powered Sage Series 100/200/300 Meters
are approved for Class 1, Div 2, Groups B, C, D, T4.
AC Powered Meters are not approved.
Testing is in accordance with the following Safety
Standards:
MFG
Class I, Div 2 Groups B,C,D, T4
MODEL #
SERIAL #
mW0=
CAUTION-DISCONNECT FROM POWER SUPPLY BEFORE OPENING. KEEP COVER
TIGHT WHILE CIRCUITS ARE ALIVE. CONDUIT SEALS MUST BE INSTALLED WITHIN
18" OF THE ENCLOSURE.
ATTENTION-OUVRIR LE CIRCUIT AVANT D’ENLEVER LE COUVERCLE GARDER LE
COUVERCLE BIEN FERME TANT QUE LES CIRCUITS SONT SOUS TENSION. UN
SCELLMENT DOIT ENTRE INSTALLE A MOINS DE 45CM DU BOITER.
80-0083-REV.A
• ANSI 12.12.01, Electrical Equipment for Use in
Class I and II, Division 2, and Class III Hazardous
(Classified) Locations
• CSA C22.2 No. 213-M1987 (R1999), First Edition,
CONFORMANCE
All AC & DC Powered Sage Metering, Inc. Series
100/200/300 are CE Compliant for the following
Non-incendive Electrical Equipment for Use in
directives:
Class I, Division 2 Hazardous Locations
• EN61000-6-4 for Electromagnetic compatibility;
• UL/CSA 61010-1, Second Edition, Safety Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use – Part 1: General
Requirements
• EN61000-3-2 for Harmonics;
• EN61000-3-3 for Flicker;
• EN61000-6-2 for Electromagnetic Compatibility
(Immunity for Industrial Environments), which
includes EN61000-4-2 for ESD;
• EN61000-4-3 for Radiated Immunity;
The following is required to comply with the above
• EN61000-4-4 for EFT/B; EN61000-4-5 for Surge;
mentioned Approvals
• EN61000 for Conducted Immunity;
1) Repair of the product (or replacement of compo-
• EN61000-4-8 for Magnetic Immunity;
nents) is not possible by the user
• EN61000-4-11 for Voltage Interruptions
2) As noted on the following label it will contain the
following markings: Ex symbol, nA symbol IIC,
temperature class
3) All DC meters will be marked with “X” which
means that these Special Conditions of
Use will apply:
a) The completed meter must be installed with a
rigid or flexible metal conduit in order to satisfy approval conditions.
b) The meter has been approved for use with the
electronics enclosure in an ambient temperature from –40˚C < Ta < 65˚C.
4) Sage Metering considers a linear correction suitable for temperatures exceeding the temp code
rating of 40C (104F) thus no customer correction
is needed.
REV. 1-0215
Section
C
DRAWINGS
User Manual
SAGE METERING, INC.
33
100/200/300 Series Integral Style Mass Flow Meters
IN-LINE STYLE1,3
150#, 300#, or 600# flanged ends are optionally available.
(150# flanges recommended on 3" and 4" Flow Bodies)
4.61
CAUTION:
Do not rotate the
Enclosure of In-Line
Style Meters relative
to the Flow Tube, or
the calibration may
be effected since the
sensors may become
misaligned.
5.38
1/2" NPT
User Entry
for Wiring
2-3/4” Nominal
FLOW
Depth: DC Enclosure depth is 4.35"
AC Enclosure depth is 5.35"
See Chart
INSERTION STYLE2
150#, 300#, or 600# flanged mounting is optionally available. Available probe lengths are 6", 12", 15", 18", 24", 30",
36" or 48". Standard probe is 1/2" diameter
4.60
4.50
1/2" NPT
User Entry
for Wiring
Probe Length
1 NPT Fittings standard
2 Flanged Mounting available for high pressure operation
3 Flow Conditioning built in to Flow Meter Pipe Sizes 1/2" and up. Contact Sage for optional
1/4" tube flow body.
FLOW
REV. 1-0215
34
User Manual
SAGE METERING, INC.
200/300 Series Remote Style Mass Flow Meters
IN-LINE STYLE1,3,4
INSERTION STYLE2
150#, 300#, or 600# flanged ends are optionally available.
(150# flange recommended on 3" and 4" Flow Bodies)
150#, 300#, or 600# flanged mounting is optionally available. Available probe lengths are 6", 12", 15", 18", 24", 30",
36" or 48".
4.60
1/2" NPT User
Entry for Wiring
4.50
3/4" NPT
for Remote
Cable
Junction Box is Explosion
Proof, Class 1, Div. 1 & 2,
Group B, C, D
3/4" NPT for
Remote Cable
(NO ELECTRONICS)
See
Chart
See Chart
on
35
on Page
Page 33
CAUTION: Do not rotate the Junction Box of In-Line Style
Meters relative to the Flow Tube, or the calibration may be
effected since the sensors may become misaligned.
1 NPT Fittings standard
2 Flanged Mounting available for high pressure operation
3 Flow Conditioning built in to Flow Meter Pipe Sizes 1/2" and up. Contact Sage for optional
1/4" tube flow body.
4 See Chart on page 33.
5 Junction Box has the following certifications: Class I, Groups B,C,D; Class II, Groups E,F,G; Class III;
4X, 7BCD, 9EFG; FM Standard 3615; UL Standard 1203; CSA Standard C22.2 No. 30; and NEMA
Compliance
REV. 1-0215
3/4" NPT for
Remote Cable
1/2" CORD GRIP
SUPPLIED ON
ELECTRONICS
END
3.50
Junction Box is
Explosion Proof,
Class 1, Division 1 & 2,
Group B, C, D
(NO ELECTRONICS)5
25' CABLE SUPPLIED
Can be shortened or
lengthened in the field
by up to 1000 ft. without
affecting calibration.
User Manual
SAGE METERING, INC.
35
Sage Remote Bracket Layout
MOUNTING OPTIONS
1. Overhead with U-bolts (customer supplied) across
pipe on each leg
2. Vertically, as shown
3. Horizontally
1/2" NPT
User Entry
for Wiring (2)
.266 DIA
HOLES
4.61
WAVE
WASHER
WAVE
WASHER
1/2" NPT User Entry
for Wiring (2)
CORD GRIP or
NPT PLUG (as req’d)
BOTH SIDES
3/4" NPT for
Remote Cable
7.38
2.00
REV. 1-0215
36
User Manual
SAGE METERING, INC.
Mounting Hardware3
SVA05 SERIES ISOLATION VALVE ASSEMBLY
FOR INSERTION METERS4
SVA05 SERIES ISOLATION VALVE ASSEMBLY DETAIL
(for Low Pressure SVA05 see page 37)
Cut away view of probe inserted through isolation
ball valve assembly.
Used for pressures to 250 psig1 (shown for use with
1/2" diameter insertion meters). 150# or 300# flanged
mounting is optionally available.
SENSOR ASSEMBLY
EXTENDS 2.25" L
BELOW THE
LOWER EDGE OF
THE WELDED
COLLAR CLAMP
WITH CHAIN TAUT
11.00
PROBE LENGTH
(with sensor)
3/4" THREADOLET
(User Supplied)
NOTE: User needs to weld a 3/4" female threadolet
(of appropriate radius) to mate with existing pipe
after a 3/4" hole has been drilled in pipe. The 3/4"
Male Coupling of the Sage Isolation Valve Assembly
will thread into the user’s 3/4" threadolet.
1/2" BORE
SINGLE PIECE
COLLAR CLAMPS
12"
15"
18"
24"
2
SAFETY CHAIN
1/2"–3/4" BALL VALVE
WELDMENT WITH
1/2" TUBE TO PIPE
COMPRESSION FITTING
SAFETY
CHAIN LENGTH2
3/4"x1.5"
PIPE NIPPLES
3/4"x3"
BALL VALVE
8.25"
11.25"
14.25"
20.25"
3/4"x1"
HALF COUPLING
(THREADOLET)
STCF SERIES TEFLON FERRULE
COMPRESSION FITTING
1/2" tube x 1/2" pipe fitting (shown, not to scale), is
used for low pressure insertion applications to 125
psig (Stainless Steel Ferrule optional for higher pressure applications – up to 225 psig).
MOUNTING PLATE FOR THIN WALLED DUCTS
(INCLUDES STCF05 COMPRESSION FITTING)
1.92
4"
1 At 250 psig, force exerted on 1/2" diameter probe is 50 lbs
2 Safety chain is designed to prevent probe from accidentally escaping from assembly during removal from pressurized pipe
3 Insertion meters can have optional flanged mounting (generally used for high pressure or very hot gases). This adaptation is not
shown. Consult factory for details.
4 Maximum gas temperature, 200F, unless high temperature models ordered.
REV. 1-0215
4"
User Manual
SAGE METERING, INC.
37
SVA05LP Low Pressure Isolation Valve Assembly
HANDLE IN CLOSED POSITION
HANDLE IN OPEN POSITION
Teflon Ferrule
316SS Compression Fitting
5.5"
without
threadolet
1/2"-3/4" Brass Adaptor
3/4" Brass Full Port Ball Valve
Valve Handle
6.5"
with
threadolet
7.00"
without
threadolet
8.00"
with
threadolet
316SS 3/4"x 1-1/2" Pipe Nipple
Customer
Supplied Threadolet
NOTES AND CAUTIONS
• Suitable for low pressure Air or Natural Gas applications
(maximum 50 PSIG)
• Assumes 1⁄2" Insertion Probe inserted to center of a Pipe
(see Sage Probe Insertion Guidelines)
• Teflon Ferrule permits ease of Probe insertion or removal
• Exercise caution when loosening Ferrule nut during
insertion and removal of Probe, since this model has no
Safety Chain
• Note, maximum upward force is 20% of pipe pressure
(i.e., 10 Lbs with 50 PSIG)
• The Assembly will be shipped with a plastic sleeve that
protects the 3/4" pipe nipple
• It is the Customer’s responsibility to weld a Female Threadolet
with correct diameter to pipe
REV. 1-0215
38
User Manual
SAGE METERING, INC.
Flanged Ends for
In-Line Meter (OPTIONAL)
Flanged Mounting for
Insertion Meter (OPTIONAL)
UPSTREAM
Flanges for 3" pipe sizes and
smaller have 4 bolt holes
Flanges for 31⁄2" pipe sizes and up,
have 8 bolt holes
REV. 1-0215
W
FLO
Section D
DIAGNOSTICS
User Manual
SAGE METERING, INC.
41
Common Diagnostics
SYMPTOM: Display failure, or pixels extremely dim.
CORRECTIVE ACTION: Contact Factory. Certain types
of failures are under long term warranty. Please note
that the 4-20 mA will still function normally.
SYMPTOM: Display fading, or partially fading.
CORRECTIVE ACTION:
a) Some fading, particularly with those characters that
are lit up most frequently, is normal. The flow
meter will continue to function properly, and flow
meter accuracy and outputs will not be effected.
b) In extreme cases, contact the factory for display
replacement.
SYMPTOM: Erratic Readings.
POSSIBLE CAUSES: If a large Motor or Generator or
Variable Frequency Drive (VFD) is nearby the enclosure, it may be inducing sufficient analog noise into
the circuitry to temporarily corrupt the data.
SUGGESTED CORRECTIVE ACTION:
a) If a Power-Restart temporarily solves the problem,
than it is likely that the source of the noise was
the problem.
b) To prevent subsequent problems, if a Remote
Style Meter, move the enclosure as far away as
possible from the source (the Motor or VFD).
c) If an Integral Style Meter, mount the meter in
a different location (further from the source) or
move the source further from the meter.
SYMPTOM: Erratic Readings on a Remote Meter.
POSSIBLE CAUSE: In some cases, analog noise is
induced into the Remote cable causing erratic, or
climbing readings.
SUGGESTED CORRECTIVE ACTION:
a) Be sure the remote cable is installed in metal conduit and grounded on one end (in some cases,
grounding both ends may be required).
b) Also, avoid coiled cable, especially if not in metal
conduit.
c) Also, if extra cable exists, move the extra cable as
far away as possible from any source of analog
noise, such as large motors or VFDs.
SYMPTOM: Meter reading zero continuously, or Full
Scale continuously, or temperature reading is abnormally low (hundreds of degrees below zero).
POSSIBLE CAUSES/SUGGESTED CORRECTIVE ACTION:
a) It is likely that a wire is loose. But in rare cases,
a sensor could fail (i.e., if a standard sensor, HT01
or HT02 sensor exceeds a process temperature of
450˚F.)
b) Check for continuity to be sure the wiring is
making good contact at the terminals of the
Junction Box.
c) Also, to verify that the electronics and the sensor
serial number are the same, note the following:
The sensor’s serial number will come up upon
power up, right after Initializing on the Display. If
the serial number doesn't agree with the Junction
Box labels, that would affect calibration (in other
words, sensors and electronics are a matched
pair—mixing them up will cause false readings).
Also metal Serial Number Tags are fastened to both
the electronics and the Junction Box. They must
have identical Serial numbers.
d) To check if a sensor has failed on a remote style
meter, it is easy to use the Junction Box to do so.
You must Power Down (shut off power), but you
do not need to remove the probe from the pipe.
Refer to page 21.
e) An Ohm Meter is required to check across the sensor leads of the Flow Sensor. Look at the drawing
of the Junction Box. Disconnect the red wires on
the Factory Side to isolate and measure the resistance. If the reading is infinity or a short, it means
that sensor has failed.
f) Now check the Temperature Sensor. Disconnect the
white wires on the Factory Side to isolate and measure the resistance. If you have infinity or a short, it
means that sensor is burned out. Note: Normally the
sensors will read approximately 110 ohms at 70˚ F. At
higher temperatures they should read a higher resistance, but both sensors should have a similar value.
g) On integral style meters, there is no Junction Box.
In that case, refer to the Integral Terminals on
page 20 and check the sensor wires. Remove the
appropriate wires first (red pair for flow, then
white pair for temperature). Measure their resistance. If reading infinity or short, it means that
sensor has failed.
42
SYMPTOM: Meter Railing (Pegging) or Reading High
POSSIBLE CAUSES/SUGGESTED CORRECTIVE ACTION:
a) Insufficient straight run (i.e. flow profile is disturbed, causing errors).
b) Possible jet effect if upstream pipe is smaller than
meter flow body or if valve is too close upstream
to meter.
c) Not following Probe Insertion Guideline.
d) If sensor is inserted in reverse (“Upstream” mark
is facing downstream) Meter may over-report (or
under-report) by as much as 30%.
e)
If sensor is not aligned properly, with “Upstream”
mark facing upstream, a rotation greater than
± 5 degrees may cause change in reading
(greater than ± 5 degrees and less than ± 20
degrees causes meter to over-report; a greater
rotation actually blocks the sensor, and causes
meter to under-report).
f) A downstream valve too close to the meter (flow
may be reflecting back).
g) Possibly caused by water droplets condensing out
of gas stream (which generally causes output to
spike; but if droplets are near continuous, output
may rail).
h) Meter is miswired, especially in Remote Style
application.
i)
Possibly caused by water droplets condensing on
inside of pipe wall, which roll down or hit sensor
causing output to spike; but if droplets are near
continuous, output may rail. Note: Recommend installation 45˚ from vertical (see drawing on page 72).
j) Possibly caused by water droplets condensing out
of gas stream and filling the cavity containing the
sensing elements (usually due to probes mounted
below horizontal in saturated pipes).
k) Sensor may be contaminated. Remove probe,
wipe off or clean with a solvent. Reinsert.
l)
User Manual
SAGE METERING, INC.
Using a different gas or gas mix than the meter
was specified and calibrated for.
m) If a Remote Style Meter, be sure Serial Numbers
of Junction Box and Remote Electronics are identical (if not, errors in calibration are inevitable).
To confirm, verify that Junction Box Serial
REV. 1-0215
Number Tag has identical Serial Numbers
to Tag on Remote Enclosure.
n) Meter may appear to be reading high if user is
comparing Sage flow meter readings (SCFM) to
an uncorrected volumetric device (ACFM). For
example, at constant volume, a decrease in gas
temperature will increase the mass flow (SCFM).
That is completely normal.
SYMPTOM: Reading Low
POSSIBLE CAUSES:
a) Insufficient straight run (i.e. flow profile is
disturbed, causing errors).
b) Poor flow profile Upstream (insufficient upstream
straight run).
c)
Not following Probe Insertion Guideline.
d) If sensor is inserted in reverse (“Upstream” mark
is facing downstream) Meter may over-report (or
under-report) by as much as 30%.
e) If sensor is not aligned properly, with “Upstream”
mark facing upstream, a rotation greater than ± 5
degrees may cause change in reading (greater than
± 5 degrees and less than ± 20 degrees causes meter
to over-report; a greater rotation actually blocks
the sensor, and causes meter to under-report).
f) Sensor may be contaminated. Remove probe, wipe
off or clean with a solvent. Reinsert.
g) Using a different gas or gas mix than the meter
was specified and calibrated for.
h) If a Remote Style Meter, be sure Serial Numbers
of Junction Box and Remote Electronics are
identical (if not, errors in calibration are inevitable). To confirm, verify that Junction Box Serial
Number Tag has identical Serial Numbers
to Tag on Remote Enclosure.
i) Meter may appear to be reading low if user is
comparing Sage flow meter readings (SCFM) to
an uncorrected volumetric device (ACFM). For
example, at constant volume, an increase in gas
temperature will lower the mass flow (SCFM).
That is completely normal.
j) On most models, the Totalizer will not start counting for 10 seconds after power up so any flow data
will not be accumulated during this time.
User Manual
SAGE METERING, INC.
43
k) Insufficient power supply—most products require
minimum 100 ma.
l) Excessive load on the 4-20 ma. (To check if problem is due to 4-20 ma output device, temporarily
remove device, and observe if display reads as
expected).
SYMPTOM: Totalizer can take up to 10 seconds to
update its reading when flow meter is first powered
up, or a channel is changed.
CORRECTIVE ACTION: None. This slight delay is completely normal.
SYMPTOM: Display does not have power
POSSIBLE CAUSE: Mis-wiring
SYMPTOM: 4-20 mA output not tracking the flow rate
display
POSSIBLE CAUSE:
a) In normal operation (Self Powered) B4 and B5
must be jumpered to supply power to loop. See
page 20.
b) In Externally Powered mode, the jumper must be
removed. Verify that 9 to 27 Volts DC is supplied
to externally power the loop as per page 19.
REV. 1-0215
Section
E
WARRANTIES AND
SERVICE WORK
User Manual
SAGE METERING, INC.
47
Warranties and Service Work
LIMITED WARRANTY
CANCELLATION / RETURN POLICY
Sage Metering’s products are warranted against faulty
Cancellation or Return: After issuance of a purchase
materials or workmanship for one year from the date
order (by phone, mail, e-mail or fax) or a credit card
of shipment from the factory. Sage’s obligation is
order (by phone, mail, e-mail or fax), there will be a
limited to repair, or at its sole option, replacement of
cancellation fee for any cancelled order. Cancella-
products and components which, upon verification
tions must be in writing (by mail, e-mail or fax):
by Sage at our factory in Monterey, California, prove
to be defective. Sage shall not be liable for installation charges, for expenses of Buyer for repairs or
replacement, for damages from delay or loss of use,
or other indirect or consequential damages of any
kind. This warranty is extended only to Sage prod-
1) If credit card order or non-credit card order is
cancelled within 7 days of issuance of purchase
order or date order was placed (which ever is
earlier), there will be a 10% cancellation fee.
2) If credit card order or non-credit card order is
ucts properly used and properly installed for the par-
cancelled after 7 days, but prior to shipment,
ticular application for which intended and quoted;
there will be a 20% cancellation fee. (If order is
and does not cover water damage due to improper
cancelled due to late delivery, the cancellation
use of cord grips or removal of protective caps; and
fee will be waived. Late delivery is defined as
does not cover Sage products which have been
shipping a meter 7 days or later than the delivery
altered without Sage authorization or which have
date acknowledged by Sage Metering at time of
been subjected to unusual physical or electrical
placing order).
stress. Sage makes no other warranty, express or
implied, and assumes no liability that goods sold to
any purchaser are fit for any particular purpose.
Transportation charges for materials shipped to the
factory for warranty repair are to be paid by the shipper. Sage will return items repaired or replaced under
warranty, prepaid. NOTE: No items will be returned
for warranty repair without prior written authorization from Sage Metering, Inc. Sage does not warranty
damage due to corrosion.
3) If a credit card customer decides to return the
equipment after shipment for credit, credit will
not be issued if equipment is damaged or if equipment is returned after four (4) months of shipment. If equipment is not damaged, then equipment can be returned after issuance of a Return
Meter Authorization (RMA) by Sage. Returned
package must be insured by customer and must
reference proper RMA# on outside of package,
or package may be rejected (i.e., package will be
returned unopened). Credit Card customers will
GENERAL TERMS AND CONDITIONS
be charged a 30% re-stocking fee (70% balance
will be credited back). Customer is responsible for
Detailed General Terms and Conditions can be found
return shipping charges and any damage if
on the Sage website (www.sagemetering.com) on a
improperly packaged.
link “General Terms” on the Footer of any page on
the website.
continued on next page
REV. 1-0215
48
SAGE METERING, INC.
4) If a non-credit card customer decides to return
the equipment after shipment for credit, credit
will not be issued if equipment is damaged or if
equipment is returned after 1 month of shipment, unless authorized by a representative at
Sage Metering, Inc. The Sage representative will
issue a Return Material Authorization (RMA) at
that time and will advise of the restocking fee.
Returned package must be insured by customer and must reference proper RMA# on
outside of package, or package may be rejected
(i.e., package will be returned unopened).
Customer is responsible for return shipping
charges and any damage if improperly packaged.
REV. 1-0215
User Manual
User Manual
RETURNING YOUR SAGE METER
A Return Material Authorization Number (RMA#)
must be obtained prior to returning any equipment
to Sage Metering for any reason. RMA#s may be
obtained by calling Sage Metering at 866-677-7243
SAGE METERING, INC.
49
have the unit returned at your expense. For your reference, the requirements for packaging and labeling
hazardous substances are listed in DOT regulations
49 CFR 172, 178, and 179.
1. The equipment must be completely cleaned and
or 831-242-2030 between 8:00 am and 5:00 pm
decontaminated prior to shipment to Sage
Monday through Friday.
Metering. This decontamination includes the sen-
A Sage RMA Form (see page 50) must be filled out
and included with the meter being returned to
Sage Metering. RMA Form is also accessible by
clicking the “Contact” tab of the Sage website
(www.sagemetering.com).
Take special care when packaging your meter for
return to the factory. The sensor in particular may
easily be damaged if not prevented from shifting
around within the package and if the sensor itself is
not covered to keep it from contacting other package contents. Any damage resulting from improper
packaging is the responsibility of the shipper.
A purchase order is required prior to an RMA being
issued. Most repairs or recalibrations can be quoted
over the phone. For equipment that must be evaluated, an Evaluation purchase order in the amount of
$150 is required. Once an evaluation is completed
sor, probe, electronics and enclosures internally
and externally. All packaging must be clean and
free from contamination.
2. A Material Safety Data Sheet (MSDS) is required
for all process fluids and gases that have been in
contact with the equipment. This includes fluids
or gases used in cleaning the equipment. A
Decontamination Statement is also required for
each meter returned using a different gas or fluid.
Both the MSDS and the Decontamination
Statement are to be attached to the OUTSIDE of
the shipping container. If both documents are not
attached, you will be called, and the equipment
sent back to you at your expense.
3. The decontamination Statement must include
the following required information
A. A list of all chemicals and process fluids used
and a quote has been issued, you can choose to pro-
in the equipment, including decontamination
ceed with the work or have the unit returned with
fluids or gases.
only the evaluation and freight fee billed.
In accordance with the “Right to Know Act” and
applicable US Department of Transportation (DOT)
regulations, Sage Metering will not accept delivery of
equipment that has been contaminated without written evidence of decontamination, and has instituted
the following Return/Repair conditions. Strict adherence to these conditions is required. Returned equipment that does not conform to the requirements listed below will not be processed. If Sage Metering finds
B. The model and serial number of the equipment being returned.
C. A company officer or other authorized person’s
signature on the statement.
Return Shipping Address:
Sage Metering, Inc.
8 Harris Court, Building D1
Monterey, CA 93940
evidence of contamination, we may, at our option,
REV. 1-0215
50
User Manual
SAGE METERING, INC.
RETURN MATERIAL AUTHORIZATION
RMA #
Date
RETURN CUSTOMER INFORMATION
Customer’s Name
Fax #
Customer’s Contact Name
Phone #
Email Address
CUSTOMER’S RETURN ADDRESS
Bill to:
Ship to:
RETURN PRODUCT INFORMATION
Model No.
Serial No(s).
FLOW:
MIN
NORMAL
MAX
TEMP:
MIN
NORMAL
MAX
PRESSURE:
MIN
NORMAL
MAX
GAS
LINE SIZE
REASON FOR RETURN / DESCRIPTION OF SYMPTOMS
(All non-warranty repairs could be subject to a minimum evaluation charge)
Recommended steps to be used to duplicate problem/symptoms
Sage Metering Technical Contact
Take special care when packaging your meter for return to the factory. The sensor in particular may easily
be damaged if not prevented from shifting around within the package and if the sensor itself is not covered to keep it from contacting other package contents. Any damage resulting from improper packaging
is the responsibility of the shipper.
SAGE METERING, INC.
8 Harris Court, Building D-1 / Monterey, California 93940
PHONE: 831-242-2030 / FAX: 831-655-4965
REV. 1-0215
Section
F
MODBUS
User Manual
SAGE METERING, INC.
53
Modbus Register Listing SAGE REV. 1.80–2.07
THIS SECTION APPLIES TO THOSE FLOW METERS WHICH HAVE SELECTED
THE OPTIONAL MODBUS COMMUNICATION
UINT32
IEEE Float
SCALED INT32*
Reg
Offset
Reg
Offset
Reg
Offset
Type
Type
Reg
Description
UINT32
IEEE Float
Reg
Offset
Reg
Offset
SCALED INT32*
Type
Reg
Offset
Reg
Description
Type
256
UINT8
format flag
550
FLOAT
806
iir filter coeff
256
UINT8
modbus_unit_id
552
FLOAT
808
flow_min
FLOAT
810
flow_max
257
UINT8
output mode sel
554
257
UINT8
fix_pt selection
556
FLOAT
812
PULSE COUNT
558
FLOAT
814
temp_max
257
UINT1
bRun
257
UINT1
bTotal
302
UINT16
dac1_min
dac1_max
257
UINT1
bEEProm
304
UINT16
257
UINT1
bReset
306
UINT32
serial number
RATE string
257
UINT1
bLeadEn
308
ASCII
257
UINT1
bDACIo
310
ASCII
TOTAL string
bDAChi
312
UINT32
current totalizer
CAL_VAL
314
UINT32
ADC0
ADC1
257
UINT1
514
TEMP
FLOAT
770
LONG
516
FLOAT
772
LONG
K-FACTOR
316
UINT32
518
FLOAT
774
LONG
VREF
318
UINT32
ADC2
320
UINT32
ADC3
520
FLOAT
776
LONG
LOAD-RES
522
FLOAT
778
LONG
COEFF A
578
FLOAT
834
LONG
current flow
FLOAT
836
LONG
current temp
TEMP
524
FLOAT
780
LONG
COEFF B
580
TEMP
526
FLOAT
782
LONG
COEFF C
582
FLOAT
838
LONG
rtd_mWatts
FLOAT
840
LONG
rtd_res
TEMP
FLOW
528
FLOAT
784
LONG
COEFF D
584
530
FLOAT
786
LONG
DISP A
586
FLOAT
842
LONG
ref_res_r
FLOAT
844
LONG
ref_res_d
532
FLOAT
788
LONG
DISP B
588
534
FLOAT
790
LONG
DISP C
590
FLOAT
846
LONG
dac_smooth
FLOAT
848
LONG
lead
536
FLOAT
792
LONG
DISP D
592
538
FLOAT
794
LONG
COEFF A
594
FLOAT
850
LONG
oheat
FLOAT
852
LONG
bv
FLOW
540
FLOAT
796
LONG
COEFF B
596
FLOW
542
FLOAT
798
LONG
COEFF C
598
FLOAT
854
LONG
fv
FLOAT
856
LONG
tv
FLOAT
858
LONG
lv
FLOW
544
FLOAT
800
LONG
COEFF D
600
FLOW
546
FLOAT
802
LONG
COEFF E
602
FLOW
548
FLOAT
804
LONG
COEFF F
*SCALED INT32 register contents form INT32 values by multiplying the IEEE FLOAT x 1000
ex. FLOAT –> 112.768 = SCALED INT32 –> 112768
REV. 1-0215
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SAGE METERING, INC.
Sage Metering Modbus Protocol Rev. 1.80–Rev. 2.07
Sage Meters support communication with other
ADDRESS FIELD
devices via MODBUS® protocol using RTU transmis-
The address field contains one byte. Sage Meters will
sion mode. The Modbus protocol defines a message
transmit response packets to addresses which are be-
structure that controllers will recognize and use,
tween 1 to 240 decimal (inclusive). Modbus packet
regardless of the type of networks over which they
writes may be sent to broadcast address 00, however
communicate. It establishes a common format for
the instrument will not reply with a response packet.
the layout and contents of message fields.
Transactions use a master-slave technique, in which
FUNCTION CODE FIELD
only one device (the master) can initiate transactions
The function code field contains one byte. See the
(called queries). The other devices (the slaves)
section titled Function Codes.
respond by supplying the requested data to the
master and by taking the action requested in the
query. Sage Meters operate as slaves to other Modbus
devices and default to 19200-8-E-1, however, the
following modes may also be software selectable:
9600-8-N-1
9600-8-E-1
9600-8-O-1
19200-8-N-11
19200-8-E-1
19200-8-O-1
(Baud-Bits-Parity-Stop)
The data field contains four or more bytes. This
information is used by the Meter to take the action
defined by the function code, or to read or write data
to one or many registers.
CRC FIELD
The CRC-16 (cyclical redundancy check) field is two
(Default)
MESSAGE FRAMING
Messages start with a silent interval of at least 3.5
character times followed by 4 fields and then followed by another silent interval of at least 3.5 character times. The first field contains the device
address. The second field contains the function code.
The third field contains the data and byte counts.
The fourth field contains the CRC value.
1 Parity on the Wireless Devices manufactured by Obvius is “None” rather than “Even”. The Sage
default is 19200-8-E-1. Change to 19200-8-N-1 for the Obvius Modhoppers and related wireless
devices.
REV. 1-0215
DATA FIELD
bytes, containing a 16-bit binary value. The CRC
value is calculated by the transmitting device, which
appends the CRC to the message. The receiving
device recalculates a CRC during receipt of the message, and compares the calculated value to the actual
value it received in the CRC field. If the two values
are not equal, the message will be discarded.
User Manual
SAGE METERING, INC.
55
Function Codes
03 (0X03) READ HOLDING REGISTERS
Identical operation as code 04 READ INPUT REGISTERS described below, except READ only.
04 (0X04) READ INPUT REGISTERS
Reads the binary contents of the specified register.
This is READ/WRITE register. Values are typically 32
bits wide (4 bytes) and contain a single IEEE754
floating point value. Modbus registers are 16 bits
wide (2 bytes) so a minimum of 2 Modbus registers
are required to transfer all floating point bits to the
master. See section titled Floating Point Format.
Query
The query message specifies the starting register
address and the quantity of registers to be read.
0x03 READ MULTIPLE HOLDING REGISTERS or
0x04 READ MULTIPLE INPUT REGISTERS
–QUERY–
SA – SLAVE ADRESS
04 – FUNC CODE
RH – REG ADDR HI
RL – REG ADDR LO
00 – # OF REGS HI
CT – # OF REGS LO
CH – CRC MSB
CL – CRC LSB
–RESPONSE–
SA
04
BC – # of data bytes to follow
DATA0
DATA1
DATAn
CH CRC MSB
CL CRC LSB
REG ADDR HI (RH) is set to:
01 for INTEGER access of integral values
02 for IEEE754 floating point
03 for Scaled (x1000) long integer of floating point value
REG ADDR LO (RL) is the starting address index into the register
structure. See section titled Sage Register Index Values.
CT is the register count needed to transfer data. Typically this byte
is set to 02 to request 1 full IEEE754 floating point value. (Modbus
single registers are 16 bits wide, Sage floating point values are
32 bits wide.)
DATA0-DATAn are bytes in binary format returned from the slave device
representing the contents of the selected register(s).
NOTE: values indicated with 0x prefix are in hexadecimal, otherwise in decimal notation.
REV. 1-0215
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SAGE METERING, INC.
16 (0x10) WRITE REGISTERS
Writes the binary contents of the specified register
into the meter. Values are typically 32 bits wide
(4 bytes) and contain a single IEEE754 floating point
value. Modbus registers are 16 bits wide (2 bytes) so
a minimum of 2 Modbus registers are required to
transfer all floating point bits into the meter. See section titled Floating Point Format.
Query
The query message specifies the starting register
address and the quantity of registers to be written.
16 (0x10) WRITE MULTIPLE REGISTERS
–QUERY–
SA – SLAVE ADRESS
0x10 – FUNC CODE
RH – REG ADDR HI
RL – REG ADDR LO
00 – # OF REGS HI
CT – # OF REGS LO
BC – BYTES COUNT
DATA0
DATA1
DATAn
CH – CRC MSB
CL – CRC LSB
–RESPONSE–
SA
0x10 – 16 FUNC CODE
RH – REG ADDR HI
RL – REG ADDR LO
00 – # REGS HI
CT – # REGS LO
CH – CRC MSB
CL – CRC LSB
REG ADDR HI (RH) is set to:
01 for INTEGER access of integral values
02 for IEEE754 floating point
03 for Scaled (x1000) long integer of floating point value
REG ADDR LO (RL) is the starting address index into the register
structure. See section titled Sage Register Index Values.
CT is the register count needed to transfer data. Typically this byte is
set to 02 to request 1 full IEEE754 floating point value.
BC is the actual number of bytes that follow.
DATA0-DATAn are bytes in binary format transmitted to the slave
device representing the contents of the selected register(s).
REV. 1-0215
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SAGE METERING, INC.
57
SAGE REGISTER INDEX VALUES
DATA
TYPE
Byte
float
float
float
float
float
integ
VALUE
slave_ad
flow_rate;
flow_temp;
rtd_mWatts;
rtd_res;
ref_res_r;
totalizer;
SIZE
1 BYTE
1 IEEE754
1 IEEE754
1 IEEE754
1 IEEE754
1 IEEE754
1 uLONG
INDEX
1
578
580
582
584
586
312
ADDRESS
DESCRIPTION
Modbus Slave Address*
actual flow rate
process temperature
sensor power reading
actual sensor probe resistance
actual temperature probe resistance
actual displayed total
*NOTE: Sage Meters are factory programmed with the MODBUS slave address = 48 (0x30).
It may be extremely useful to be able to write to an unknown slave address with a simple broadcast
command. Be sure only one instrument is connected during any broadcast writes using slave
address = 0.
Writing into unspecified registers (not defined above)
can render the unit non-functional or overwrite factory calibration data yielding incorrect operation.
EXAMPLE MODBUS PACKET
Query
This packet will request of the addressed slave to
respond by sending back the contents of registers
578 to 582 (inclusive). Three registers: flow rate
through RTD mWatts in IEEE754 floating point
format.
0x31 – SLAVE ADDRESS (0x31 Hex = 49 Decimal default)
0x04 – READ INPUT REGS FUNCTION CODE
0x02 – STARTING REGISTER HI BYTE (0x01 = 256, 0x02 = 512, 0x03 = 768)
0x42 – STARTING REGISTER LO BYTE (512 + 66 = register access = 578)
0x00 – COUNT MSB (ALWAYS ZERO)
0x06 – COUNT OF ALL DESIRED REGISTERS
0xD5 – CRC HI BYTE
0x85 – CRC LO BYTE
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SAGE METERING, INC.
Sage Register Output Format
INTEGER REPRESENTATION
response to all master queries. MODBUS requires
that two 16 bit registers are transmitted to ensure
Computer systems hosting a MODBUS network
that no bytes are missing in the transmission of
typically store integer values to represent non-
32 bit quantities.
fractional quantities.
For more information on the MODBUS protocol, see:
All registers addressed above 256 (0x0100-0x1FF) will
http://www.modbus.org/tech.php
transfer 16 bit integral quantities in response to all
master queries. MODBUS requires that the register
SAGE ADDRESSER SOFTWARE
count reflects each 16 bit registers transmitted to
Addresser is a convenient software kit that includes
ensure that no bytes are missing in the transfer of
Addresser software, as well as an optically isolated
integer quantities. (Note: Most registers are IEEE754
ULINX RS485 to USB converter. The Addresser is a
quantities; integer representations of these registers
READ/WRITE Program with drop-down menus for
will require significant translation.)
convenient user interface between your PC or laptop
and the Modbus Terminals of the instrument. Con-
IEEE754 FLOATING POINT
tact Sage for ordering information and instructions.
Computer systems hosting a MODBUS network typically store single precision floating point data in the
SAGE ADDRESSER TECHNICAL ASSISTANCE
standard IEEE754 format.
Visit our website at www.sagemetering.com, select
”Knowledge Base” and “Software & Guides” then
All registers addressed above 512 (0x0200-0x02FF)
select “PRO-PRM-080911 Website Addresser 3_14”
will transfer full 32 bit single precision quantities
or “Modbus Poll Instructions”.
in response to all master queries. MODBUS requires
that two 16 bit registers are transmitted to ensure
that no bytes are missing in the transmission of
32 bit quantities.
SCALED DECIMAL REPRESENTATION
Computer systems hosting a MODBUS network may
choose represent single precision floating point values as scaled long integers (32 bit values). The Sage
meter will convert floating point registers to integral
units by multiplying the value by 1000.
Ex. Floating point value 1234.567 will be converted
to integral value 1234567
All registers addressed above 768 (0x0300-0x03FF)
will transfer full 32 bit scaled integer quantities in
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User Manual
SAGE METERING, INC.
59
Sage Addresser Typical Printout (Version 3.14)
Units: SCFM Modbus:
0x31
Copyright 2011, Sage Metering Inc.
1 of 1
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Section G
G
APPENDIX
User Manual
SAGE METERING, INC.
63
Sage Service Department “Dongle”
Virtually any setting can be changed by users who
Dongles come with a convenient well marked cable
have Modbus® capability via Terminals C1, C2 and
that is connected to the RS485 terminals. Simply
C3 (see page 20), using the Sage Addresser Software.
remove the rear cover, connect the Dongle, and push
the button on the Dongle. An LED will illuminate,
The Sage “Dongle”, was developed to facilitate mak-
and within 3 seconds the light will go out signaling
ing very basic changes on Sage Flow Meter settings
that the data transfer is complete.1 Remove the
in the field. Simply contact the Sage Service Depart-
Dongle, close the cover, and you will notice that the
ment and specify your requirement (such as the new
new settings have been uploaded (or in the case of a
Full Scale, new Pipe Area, etc), and the device will
Totalizer-Reset Dongle, you will notice that the
be programmed at Sage and sent directly to you
Totalizer has zeroed).
within a few days (there is a fee for this service).
The patent-pending Dongle can also be configured
as a Reset Totalizer device (i.e. it can be used repeatedly to easily reset the Totalizer). The Dongle can
also be programmed to change Engineering Units,
Filter Response and numerous other parameters.
1 If the light does not go out, it will be necessary to repeat procedure. Remove finger for a few seconds
and then push button again.
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64
SAGE METERING, INC.
Correction Factors For
Variation From Original
Digester Gas Calibration
User Manual
Installations Where Pipe
Condensation May Develop
Sage can calibrate for any Digester Gas, Bio Gas or
Landfill Gas Mix. However, it may be helpful to have
correction factors for a typical calibration, in the
event that the composition changes after delivery.
The following examples assume that the initial calibration was set up for 60% CH4 and 40% CO2.
a) 65% CH4 and 35% CO2: Multiply reading by
0.982 to correct it for new composition
b) 70% CH4 and 30% CO2: Multiply reading by
0.965 to correct it for new composition
c) 55% CH4 and 45% CO2: Multiply reading by
1.0185 to correct it for new composition
For smaller changes, the corrections are linear in
between
d) Also, if 100% saturated with H2O vapor (noncondensing), multiply readings by 1.042
e) If 50% saturated with water, multiply reading by
1.021
(Water vapor correction is linear in between)
Also, use the 45 degree mounting method in order to
avoid droplets from hitting the sensor and causing
spikes (see above right)
REV. 1-0215
TILT ENCLOSURE 45º
(forward or backward)
FOR APPLICATIONS
WHERE CONDENSATION
MAY DEVELOP ON INSIDE
WALL OF PIPES
User Manual
SAGE METERING, INC.
65
J-Box and Upstream Orientation
FRONT VIEW
LOOKING DOWNSTREAM
LOOKING UPSTREAM
4.40
2.72
2.72
5.0
5.0
FLOW DIRECTION
FLOW DIRECTION
FLOW DIRECTION
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User Manual
SAGE METERING, INC.
What is a Thermal Mass Flow Meter?
• What is a Thermal Mass Flow Meter? It is a meter
• The Sage proprietary hybrid-digital sensor drive
that directly measures the gas mass flow based
circuitry maintains a constant overheat between
on the principle of conductive and convective
the flow sensor and the reference sensor. As gas
heat transfer.
flows by the heated sensor (flow sensor), the
molecules of flowing gas carry heat away from
• All Meters have probes (Insertion Style) or Flow
this sensor, and the sensor cools down as it loses
Bodies (In-Line Style) that support a pair of
energy. The circuit equilibrium is disturbed, and
sensors, which are in contact with the gas.
momentarily the temperature difference between
the heated sensor and the reference sensor has
• The sensors are RTDs, which are resistance tem-
changed. The circuit will automatically (within
perature detectors. They consist of highly stable
1 second) replace this lost energy by heating
reference-grade platinum windings. In fact, we
up the flow sensor so the overheat temperature
use the same material that is used as Platinum
is restored.
Resistance Standards at the NIST.
• The current required to maintain this overheat
• The RTDs are clad in a protective 316 SS sheath
for industrial environments.
represents the mass flow signal. There is no need
for external temperature or pressure devices.
• One of the RTDs [See Diagram below] is self-heated
by the circuitry and serves as the flow sensor. The
other RTD acts as a reference sensor, and measures
the gas temperature. Essentially it is used for temperature compensation.
FLOW SENSOR
(Self Heated)
TEMPERATURE SENSOR
(Reference Sensor)
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