THE ENERGY MEASUREMENT SYSTEM OF CHOICE
With rising fuel costs the need for improvements in accurate energy measurement has driven the Cadillac® Energy Measurement Systems to be acknowledged as the new industry standard.
The Cadillac® CMASS Mass Flow / Energy Meter is designed to measure the energy consumed in Super Heated Steam and Natural Gas applications. The meter is a rate and totalizing device, which is capable of calculating and displaying Volume, Volume Flowrate, Corrected Volume, Corrected Flowrate, (Heat & Heat Flowrate in Natural Gas), Mass, Mass Flowrate, (Energy in Steam) , Temperature, Pressure, (Compressibility Factor in Natural Gas), and (Specific Volume & Enthalpy in Steam). Combined with Cadillac®'s superior flow meter technologies the CMASS provides the most accurate, repeatable, and maintenance free Mass Flow / Energy system available in the industry.
The Cadillac® HEATX CMASS Mass flow / Energy meter measures the Volumetric flow via a Cadillac CV-P, CV-HS, or CV-U Vortex flow meter along with temperature and pressure inputs via separate loop powered transmitters and in turn calculates the Mass flow and Energy of the compressible media (Gas or Superheated Steam) being measured using internal calculations specific to either Steam (IAPWS industrial formulation) or Natural Gas (SGERG AGA-8 Gross equations).
The New Industry Standard
Combined with Cadillac®'s superior flow meter technologies the CMASS Mass Flow / Energy meter has quickly become
acknowledged as the industry standard. Customers choose the Cadillac® CMASS Mass Flow / Energy Meter because of
proven:
ACCURACY, DEPENDABILITY, CONSISTENCY, LOW MAINTENANCE, RANGEABILITY
APPLICATIONS:
- Energy consumption data source for energy management system, DCS, district-wide systems.
- Energy-Customer Billing from accurately totalized Energy / Mass Flow measurements.
- Basis for internal cost distribution using campus-wide systems.
- Efficiency measuring and monitoring from central control rooms.
- Direct Energy / Mass Flow measurements at both Boiler and point of use locations.
FEATURES:
Natural Gas Flow:
Measures the volume, mass, and gross heat content of natural gas by using analog inputs; volume flow, temperature,
and pressure.
Super Heated Steam Flow:
Measures the volume, mass, and energy content of Super heated steam by using analog inputs; volume flow,
temperature, and pressure.
PRINCIPLES OF OPERATION
 |
CMASS Super Heat Steam
for calculating Mass flow
or Energy according to
the IAPWS industrial formulation
(1997) for the
thermodynamic properties
of steam. The equations
use the pressure and temperature
values to determine
the specific volume
and the specific enthalpy.
Formulas:
1) Mass Flow = Volume
flow/ Specific volume
2) Energy flow = Mass
flow x Specific enthalpy
CMASS Natural Gas
for calculating the gas
density and compressibility
factor based on the
SGERG (AGA-8 Gross)
equations. The equation
uses the pressure and
temperature values to determine
the Mass flow,
Corrected flow, and Heat
flow.
Formulas:
Mass Flow = Volume flow x pflow
Corrected flow = Mass flow x pref
Heat Flow = Mass flow x Hm
Where:
pflow = Density at flow conditions
pref = Density at reference conditions
Hm = Mass gross heating value
FLANGED METER DIMENSIONS
 |
INSTALLATION
GENERAL SPECIFICATIONS
- ENERGY SYSTEM SPECIFICATION:
The entire Energy Measurement System shall be supplied, calibrated, and commissioned (if necessary) by a single manufacture, Central Station Steam Co, and shall consist of a CMASS Mass Flow / Energy meter, a non-mechanical flow meter, a precision matched temperature sensors/transmitter, and a high accuracy gauge pressure transmitter. A certificate of NIST traceable calibration shall be provided with each system.
- ENERGY / BTU METER:
Provide a Cadillac® CMASS Mass flow / Energy Meter. The Mass Flow meter shall provide the following measurements at the local display and as outputs* to an Building Control System. Volume, Volume Flowrate, Corrected Volume, Corrected Flowrate, (Heat & Heat Flowrate in Natural Gas), Mass, Mass Flowrate, (Energy in Steam) , Temperature, Pressure, (Compressibility Factor in Natural Gas), and (Specific Volume & Enthalpy in Steam). Output signals shall be either Serial RS-485 (Modbus RTU), and/or via analog (4-20 mADC) and or pulse (Open Collector). Each meter shall be factory configured for its specific application, and shall be reprogrammable using the front panel keypad (no special tools or computer required). *Output options vary by model code and digital communications.
- TEMPERATURE SENSOR/TRANSMITTER:
Temperature sensor/transmitter shall have a accuracy of +/- 0.1% of temperature span, be 24VDC loop powered, provide a scalable 4-20 mADC output, and field adjustable through a local interface or via digital communications (HART).
- PRESSURE SENSOR/TRANSMITTER:
Pressure sensor/transmitter shall have a accuracy of +/- 0.1% of pressure span, be 24VDC loop powered, provide a scalable 4-20 mADC output, and field adjustable through a local interface or via digital communications (HART).
-
FLOW METER:
Provide a Cadillac® CV Vortex flow meter. The meter will have no moving parts, shall operate per the "Karman" principle. For Superheated steam (CV-P) Piezoelectric crystals mounted external to flow body will by employed to measures torsional effects of vortices on shedder bar. For Natural Gas (CV-U) ultrasonic sensors mounted in sidewall of meter body downstream of shedder bar will be employed to measure vortices. Both meters will have an operational accuracy of +/- 1.0% of rate. A fully developed flow profile must be maintained through piping straight run up and downstream of meter. Meter will have minimum 25:1 turndown at stated accuracy in a "Best Fit" installation. Meter will be provided with integral or remote electronics including a local backlit LCD for parameter viewing and easy interface / configuration. Meter will be preconfigured for application, but may be field adjusted through local display (no special tool or computer required).
FLOW METER SIZING INFORMATION
The Cadillac® magnetic flow meter has a 304 stainless steel body and
is always sold with grounding rings installed. The primary reason for providing
grounding rings is to contain the magnetic field within the meter body and
to assure the liquid potential is grounded properly. As a consequence, the
induced voltage is remarkably free of noise allowing the meter to reliably
measure extremely low fluid velocities. The table below lists minimum as
well as maximum flow ranges for each meter size, in GPM for liquids and lbs/hr
for condensate.
| Magmeter | Liquid Flow Range Table | Condensate Flow Range Table | ||
| Nominal Meter Body Size (inches) |
Minimum Volumetric Range (gal/min) | Maximum Volumetric Range (gal/min) |
Minimum Condensate Range (lbs/hr) |
Maximum Condensate Range (lbs/hr) |
| 0.1" | 0.00 - 0.024 | 0.00 - 0.800 | 0.00 - 12.00 | 0.00 - 400.0 |
| 0.17" | 0.00 - 0.061 | 0.00 - 2.020 | 0.00 - 30.50 | 0.00 - 1010 |
| 0.25" | 0.00 - 0.138 | 0.00 - 4.585 | 0.00 - 69.00 | 0.00 - 2300 |
| 0.5" | 0.00 - 0.281 | 0.00 - 28.00 | 0.00 - 140.0 | 0.00 - 14000 |
| 1" | 0.00 - 0.782 | 0.00 - 78.00 | 0.00 - 391.0 | 0.00 - 39000 |
| 1.5" | 0.00 - 2.000 | 0.00 - 200.0 | 0.00 - 1000 | 0.00 - 100000 |
| 2" | 0.00 - 3.122 | 0.00 - 310.0 | 0.00 - 1556 | 0.00 - 155000 |
| 3" | 0.00 - 8.000 | 0.00 - 800.0 | 0.00 - 4000 | 0.00 - 400000 |
| 4" | 0.00 - 12.50 | 0.00 - 1250 | 0.00 - 6250 | 0.00 - 625000 |
| 6" | 0.00 - 28.00 | 0.00 - 2800 | 0.00 - 14000 | 0.00 - 1400000 |
| 8" | 0.00 - 50.00 | 0.00 - 5000 | 0.00 - 25000 | 0.00 - 2500000 |
| 10" | 0.00 - 78.00 | 0.00 - 7800 | 0.00 - 39000 | 0.00 - 3900000 |
| 12" | 0.00 - 112.0 | 0.00 - 11200 | 0.00 - 56000 | 0.00 - 5600000 |
APPLICATION NOTE
The Cadillac® magnetic flow meter is an excellent choice for gravity flow applications. However for proper flow meter operation the piping and flow tube must be full at all times. This requires the meter to be mounted in such a way to provide a "wet leg" as illustrated below.
PRICE LIST
| Magnetic Flow Meter Model Number Structure | | Magnetic
Remote Converters |
| Condensate Meters Price List | | Vortex Meters Price List | | Ultrasonic
Meters Price List |
| MAGNETIC FLOW METERS | ||||||||||
| CMAG | Cadillac Magnetic Flow Meter | Base | ||||||||
| A | Size 0.5" | $1,145.00 | ||||||||
| B | Size 1" | $1,275.00 | ||||||||
| C | Size 1.5" | $1,360.00 | ||||||||
| D | Size 2 " | $1,475.00 | ||||||||
| E | Size 3 " | $1,495.00 | ||||||||
| F | Size 4 " | $1,635.00 | ||||||||
| G | Size 6 " | $2,095.00 | ||||||||
| H | Size 8 " | $2,400.00 | ||||||||
| I | Size 10" | $3,495.00 | ||||||||
| J | Size 12" | $4,535.00 | ||||||||
| K | Size 14" | $6,205.00 | II | Integral Converter with Indicator/Totalizer | $1,645.00 | |||||
| RC | Remote Converter | See Below | ||||||||
| W | Wafer Body (ceramic liner) - Available only through 4" | Consult Factory | ||||||||
| F | Flanged Body | $0.00 | ||||||||
| 150 | ANSI Class 150 # | $0.00 | ||||||||
| 300 | ANSI Class 300 # | $295.00 | ||||||||
| S | Electrode Material - Stainless Steel | $0.00 | ||||||||
| X | Electrode Material - Other | Consult Factory | ||||||||
| C | Liner Material - PFA (Teflon) Standard 2" and below | Consult Factory | ||||||||
| D | Liner Material - EPDM (Rubber) - Available 3" and above | $0.00 | ||||||||
| S | Ground Ring Material - Stainless Steel | $0.00 | ||||||||
| X | Ground Ring Material - Other | Consult Factory | ||||||||
| FM | FM Approvals | $0.00 | ||||||||
| MAGNETIC REMOTE CONVETERS | |||||||
| CMC |  |
Cadillac Magmeter Remote Converter | Base | ||||
 |
R | |
Remote Mounting | $1,755.00 | |||
|
I | |
Indicator/Totalizer | $265.00 | |||
|
U | |
Universal Mounting Bracket | $0.00 | |||
|
XXFT | |
Interconnecting Cable (lengths start @ 30 ft) | $5.25/ft | |||
|
FM | FM Approvals | $0.00 | ||||
If you have questions, or would like to receive additional information about our products, please contact us
