SAGE METERING, INC. THERMAL MASS FLOW METERS - PowerPoint PPT Presentation

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SAGE METERING, INC. THERMAL MASS FLOW METERS

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Title: SAGE METERING, INC. THERMAL MASS FLOW METERS

1
SAGE METERING, INC.THERMAL MASS FLOW METERS

FOR MEASURING GAS FLOW

2
HISTORY OF SAGE

Founded in Sept 2002 by Managers from other
Thermal Mass Flow Meter companies We are
dedicated to extraordinary customer service
Our Management and Staff have over 120 years
experience in Thermal Mass Flow Meters, and we
have brought to the market many important
innovations from our high performance, award
winning Flow Meters

3
THE TECHNOLOGY
4
WHAT IS A THERMAL MASS FLOW METER?

It is a Meter that directly measures the Gas Mass
Flow based on the principle of conductive and
convective heat transfer more detail later

5
MEASURE MASS FLOW RATE OR TOTALIZE COMMON GASES

Air (Compressed Air, Blower Air, Blast Furnace
Air, Combustion Air, Plant Air, Make-Up Air)
Natural Gas (Plant Usage, Sub-Metering, Burner
Control, Combustion Control, etc.)
Flare Gas (Vent Gas and Upset Dual Range)
Nitrogen, Argon (Steel Production)
Aeration Air, Digester Gas, Bio Gas, Landfill Gas
Oxygen (for Combustion Control or Ozonators)
Methane, Propane, Hydrogen, CO2, Helium
Chlorine (Hastelloy Sensors Required)

6
WHAT DOES A THERMAL MASS FLOW METER CONSIST OF?

All Sage Flow Meters have Probes (Insertion
Style) or Flow bodies (In-Line Style) that
support a pair of Sensors which are in contact
with the gas

7
WHAT DO THE SENSORS CONSIST OF?

The Sensors are RTDs, which are resistance
temperature detectors
They consist of highly stable reference-grade
platinum windings
In fact, we use the same material that is used as
Platinum Resistance Standards at the National
Institute of Standards (NIST)

8
ARE THE SENSORS RUGGED?

The RTDs are clad in a protective 316 SS sheath
for Industrial Environments

9
THE BASIC PRINCIPLE

One of the RTDs is self-heated by the circuitry
and serves as the Flow Sensor
The other RTD acts as a Reference Sensor.
Essentially it is used for Temperature
Compensation

Click Here to Continue
Click Here to Skip Theory
10
SAGE PROPRIETARY SENSOR DRIVE CIRCUITRY

The Sage Proprietary Sensor Drive Circuitry
maintains a constant overheat between the Flow
Sensor and the Reference Sensor
As Gas Flows by the Heated Sensor (Flow Sensor),
the molecules of flowing gas carry heat away from
this sensor, and the Sensor cools down as it
loses energy
.....Continued

11
SAGE PROPRIETARY SENSOR DRIVE CIRCUITRY -
continued

The circuit equilibrium is disturbed, and
momentarily the temperature difference between
the Heated Sensor and the Reference Sensor has
changed
The circuit will automatically (within 1 second),
replace this lost energy, by heating up the Flow
Sensor so the overheat temperature is restored

12
HOW DO THE RTDs MEASURE MASS FLOW

The current required to maintain this overheat
represents the Mass Flow signal
There is no need for external Temperature or
Pressure devices

13
THE PRODUCT CONFIGURATIONS
Click Here to Go Forward
Click Here to Return to
Theory
14
PRODUCT CONFIGURATIONS

Integral or Remote
Insertion or In-Line
Industrial SIP, SRP (Sage PrimeTM)
Heavy Industrial SIE, SRE
General Purpose SIG, SRG
General Purpose Blind SIL, SRL
(Sage Lite)
Captive Flow Conditioners

15
INSERTION STYLE

½ Probes up to 24 long
Typically for pipes from 1 up to 30
¾ Probes up to 60 Long
Typically for very large pipes and ducts
Or use multiple probes, one in each quadrant and
average in large ducts
Isolation Valve Assemblies available
Flanged Mounting available (High P or T)
Captive Flow Conditioners (2 18 Dia.)

16
INSERTIONS NEED STRAIGHT RUN (Min 10 up, 5 down)
EEEE

If insufficient straight run, consider Sage
inexpensive Captive Flow Conditioners

17
CAPTIVE FLOW CONDITIONERS OPTIONALLY INSTALLED BY
USERS UPSTREAM OF INSERTION METERSIF
INSUFFICIENT STRAIGHT RUN
18
INSERTIONS FOR LARGE DUCTS
19
INSERTION SENSOR ORIENTATION
20
IN-LINE METERS

¼ Flow Bodies up to 4 NPT or Flanged

Built-in Flow Conditioning (gt1/2)

21
INTEGRAL or REMOTE
22
SAGE INTEGRAL MASS FLOW METERS

23
SAGE REMOTE MASS FLOW METERS

24
REMOTE CONFIGURATIONS

Remote Explosion Proof (SRP and
SRE Series)
Remote NEMA 4X Fiberglass Enclosure (SRG Series)
Optional Explosion Proof Enclosure (XP2 Option)
on Sage Lite (SRL Series)
Local Explosion Proof Junction Box
(SRP, SRE, SRG and SRL Series)

25
REMOTE FIBERGLASS ENCLOSURE (SRG) with Touch
Display Screen Keypad
26
ADDITIONAL OPTIONS CONFIGURATIONS

Relays (Trip Hi/Low, or Totalized Pulses)
Two Relays now standard on SIG SRG One Relay
standard on SIE SRE
High Temperature Up To 750F (HTO3) optional on
Remote Insertion Styles
Flanged Insertion Meters or Flanged In-Line
Meters optional
Sage Lite (SIL/SRL) Explosion Proof Enclosures
optional (XP2 option)

27
ANNOUNCING SAGE PRIME!TM
28
SAGE PRIMETM

Powerful State-of-The-Art Microprocessor
Technology
Designed for High Performance Mass Flow
Measurement, at Low Cost-of-Ownership
Proprietary Digital Sensor Drive Circuit Provides
Enhanced Signal Stability
Low Power Dissipation, under 2.5 Watts (lt100 ma
at 24 VDC)

29
SAGE PRIMETM(Continued)

High Contrast Photo-Emissive Organic LEDs (OLEDs)
Displays Calibration Milliwatts (mw) for Ongoing
Diagnostics
Modbus Compliant RS485 RTU Communications
Remote Style has Lead Length Compensation Up to
1000 Ft.

30
SAGE PRIME ORGANIC LED (OLED) DISPLAY
31
SAGE PRIME DISPLAY (CONTINUED)

High Contrast OLEDs Visible even in Sunlight
Graphical Display Displays Pctg of FS Rate
Flow Rate in any Units (per Sec, Min or Hour)
Totalizes up to 9 digits, then rolls over
Displays Temperature in ºF or ºC
Continuously Displays raw milliwatts (mw) for
ongoing Diagnostics (zero mw on Certificate)
Diagnostic LEDs for Power and Modbus

32
SAGE PRIME INPUT/ OUTPUTS

24 VDC Power (draws less than 100 ma)
115 VAC/ 230VAC or 12 VDC Optional
Outputs 4 20 ma of Flow Rate (Grd Based)
Outputs 24 VDC Pulses of Totalized Flow (Solid
State, sourcing, transistor drive 500ms Pulse)
Modbus compliant RS485 Communications (contact
Sage for Protocol and Register Function Codes)

33
SAGE PRIME REMOTE BRACKET
Also supplied with SRE Enclosures
34
SAGE PRIME DONGLE FOR RECONFIGURABILITY
35
THERMAL VERSUS OTHER FLOW TECHNOLOGIES
36
THERMAL MFM ADVANTAGES (OVER OTHER TYPES OF
TECHNOLOGIES)

Direct Mass Flow
(No External Temp or Pressure Devices)
Low End Sensitivity (resolve 5 SFPM)
Up to 1001 Turn-Down w/ Resolution as much as
10001
Negligible Pressure Drop
No Moving Parts
Ease of Installation
Dirt Insensitive

37
THERMAL MFM ADVANTAGES (OVER OTHER SPECIFIC
TECHNOLOGIES)

Temperature and Pressure Measurement Needed on
Vortex, Turbine, Positive Displacement, Orifice,
etc to obtain Mass Flow
Coriolis expensive and has large Head Loss
All above have limited turn-down (poor low end
sensitivity) and substantial pressure drop
Turbine and Positive Displacement have moving
parts (may need frequent maintenance)
Insertion Style Meters not available on above
technologies (except on some Vortex models)

38
MAJOR TECHNICAL ADVANTAGES (OVER OTHER THERMAL
MFM MANUFACTURERS)

Sensor Functionality/ Zero Self Check (validate
Flow Meter on Site no need to return to
factory)
4 Independent Calibrations or Settings (SIG/SRG
or SIE/SRE Series) Different Calibrations
Overheats (Sensitivities) Menu Configurations
or any combination
These 4 Independent Channels can be Externally
Selectable (via external switch or PLC) as well
as Keypad or via Laptop
CONTINUED (1 of 7)

39
MORE TECHNICAL ADVANTAGES (OVER OTHER THERMAL
MFM MANUFACTURERS)

Back Lit, Large Format Display (SIG/SRG)
Displays Flow, Total and Temperature
Outputs Flow and Temperature (SIG/SRG), Totalized
Flow using Relays w/ Pulses (SIG/SRG SIE/SRE
Series)
Remote Style Meters Have No Local Electronics
(For Harsh Environments), Simply a Convenient
Local Explosion Proof Junction Box with lt1000 Ft
Lead-Length Compensated Cable (Next Slide)
CONTINUED (2 of 7)

40
MAJOR TECHNICAL ADVANTAGES (Remote Style Meter
with XP Junction Box)
CONTINUED (3 of 7)
41
CONVENIENT JUNCTION BOX
CONTINUED (4 of 7)
42
MORE TECHNICAL ADVANTAGES (OVER OTHER THERMAL MFM
MANUFACTURERS)

Very User-Friendly Menuing System (SIG/SRG
SIE/SRE Series)
Touch Display Screen Technology (SIG/SRG) No need
to remove cover to access Keypad Menuing System
Extraordinary Process Temperature Compensation
(due to Digital Bridge) (see temperature
curves on next slide)
CONTINUED (5 of 7)

43
MAJOR TECHNICAL ADVANTAGES (Extraordinary
Temperature Compensation)
44
MORE TECHNICAL ADVANTAGES (OVER OTHER THERMAL MFM
MANUFACTURERS)

Isolated 4-20 ma outputs on most Models
(Flow and Temp on SIG/SRG, Flow or Temp on
SIE/SRE Series)
Totalizer can be Externally Reset or Disabled
(SIG/SRG SIE/SRE Series)
Continuous Tracking of Max, Min Flow w/Time on
SIG/SRG and SIE/SRE Models
Sage Lite (Blind Style) configurable for Pulsed
Output of Totalized Flow or isolated 4-20 ma of
Flow and 0 5 VDC of Temp
New 10 Times more Bridge Sensitivity!

45
APPLICATIONS AND MARKETS
46
MOST COMMON SAGE APPLICATIONS