The Cadillac® CU-E BTU Meter is designed to measure the energy consumed in hot water heating and chilled water cooling systems. The meter is a rate and totalizing device, which is capable of calculating and displaying Volume, Energy, and Temperatures.
The Cadillac® CU-E BTU / Energy Meter measures the temperature in the feed and return lines via two RTD transmitters and from this calculates the density and enthalpy of the water. In addition, by also measuring the volume of water flowing in the system via the Cadillac® flow meter, the CU-E will then compute, display, and output the Energy consumed.
The New Industry Standard
Combining Cadillac®’s CU-T ultrasonic flow meter with advanced electronics and the capability for temperature inputs the CU-E BTU / Energy meter is quickly become acknowledged as the industry standard. Customers choose the Cadillac® CU-E BTU / Energy Meter because of proven: accuracy, dependability, consistency, maintenance and rangeability.Expand All | Collapse All
Cadillac® Energy CU-E Meter – Applications
The Cadillac® Energy CU-E Meter is the meter of choice for energy applications. This meter can be applied effectively for the following purposes:
- Energy consumption data source for energy management system, DCS, district-wide systems.
- Basis for internal cost estimation using campus-wide systems.
- Efficiency measuring and monitoring from central control rooms.
- Direct Energy / BTU measurements at both Boiler and point of use locations.
Cadillac® Energy CU-E Meter – Features
The Cadillac® Energy CU-E Meter is the meter of choice for energy applications. This meter contains the following features:
- Heating Mode: Where Positive ΔT’s only are totalized.
- Cooling Mode: Where Negative ΔT’s only are totalized.
Cadillac® Energy CU-E Meter — Operation Principles
The Cadillac® CU-E BTU / Energy Meter measures the temperature in the feed and return lines via two RTD sensors/transmitters and from this calculates the density and enthalpy of the water. In addition, by also measuring the volume of water flowing in the system via the Cadillac® flow meter, the CU-E will then compute, display, and output the Energy consumed.
- P = V x p x (htv-htr)
- P = Power (watts)
- V = Volumetric flow Rate
- p = Density
- htv = Specific enthalpy at Feed temperature
- htr = Specific enthalpy at Return temperature
Cadillac® CU-E BTU Meter – Dimensions
The Cadillac® CU-E BTU dimensions are outlined below:
Cadillac® CU-E BTU Meter – General Specifications
The Cadillac® CU-E BTU includes the following specifications:
- Meter shall consist of remote electroincs, one pair of matched clamp-on transducers, and pair of matched temp trans.
- Meter available with analog (4-20 mA), digital (pulse or relay) outputs, and RS485 Modbus RTU Communications.
- Four line 16 character backlit LCD providing instantaneous Energy, totalized Energy, velocity, and operational status.
- Meter programmed via integral keypad.
- Flow range: 0 to + 40.0 ft/s (0 to + 12.0 m/s), bi-directional flow.
- Accuracy: Typically ± 2.0% of reading at rates < 1.65 ft/s (accuracy also dependent on flow profile).
- Repeatability: 0.2% of Reading.
- Temperature Range: Transducers 4° to +250°F (- 40 to 121°C), Transmitter 4° to +130°F (- 20 to 60°C)
- Meter housing: NEMA 4X (IP65), ABS plastic (standard).
Cadillac® Energy CU-E Meter – Installation
The Cadillac® CU-E BTU / Energy Meter installation instructions are outlinde in the diagram below. By implementing the CU-T Ultrasonic flow metering capability and strap-on temperature sensors/transmitters as part of the CU-E Energy System, the user eliminates the need to bring the system down for installation. With a completely non-intrusive system it allows quick and easy retrofit into an online system. With a 100:1 turn down and +/- 2.0% of the rate accuracy the CU-T flow meter provides a cost effective means to provides a flow measurement, while providing a maintenance free non-mechanical flow technology.With no moving parts or flow line obstruction the CU-T has no mechanical drift, which require re-calibration, and does no cause system head loss creating an unwanted heat source (for chilled water systems), as do all other mechanical and differential pressure flow technologies typically used.The CU-E Energy system provides a quick, easy to install, cost effective way to measure energy consumption with reasonable accuracy for the end user.
CU-E Ultrasonic Chilled/Hot Water Energy System
CU-E Water Energy System
Cadillac® Ultrasonic Meter – Price List
Our prices are outlines below. In order to estimate the price of your meter, please choose an item from each centralized row within each chart. Should you have any question about the price list, please don’t hesitate to contact us directly for your free quote. Call us (888) 556-3913.
|CU||Cadillac Ultrasonic Flowmeter||Base|
|T||Digital Correlation Transit Time||$2,995.00|
|E||Digital Correlation Transit Time with ENERGY Computation feature/inputs||$3,195.00|
|A||90 to 132 Vac, 50/60 Hz||NC|
|B||190 to 250 Vac, 50/60 Hz||$100.00|
|C||20 to 30 V DC||$100.00|
|A||4-20 mA Output (Optically Isolated)||NC|
|B||4-20 mA & (1) Digital Outputs*||$100.00|
|C||4-20 mA, (1) Digital Output*,.& Modbus RTU||$175.00|
|A||Std – No Options||NC|
|B||Matched Pair 100 Ohm temperature transmitters (Energy Meter Only)||$300.00|
|A||Area Classification: General Purpose||NC|
|B||Area Classification – Intrinsically Safe (Available Soon)||$400.00|
|06||Transducers w/6 meters of cable (Standard)||$0.00|
|10||Transducers w/10 meters of cable||$50.00|
|15||Transducers w/15 meters of cable||$100.00|
|20||Transducers w/20 meters of cable||$150.00|
|30||Transducers w/30 meters of cable||$175.00|
|R1||Mounting Rack Assembly 3 – (1.5″-10″) pipe size||$125.00|
|R2||Mounting Rack Assembly – (0.5″- 2″) pipe size||$195.00|
|R3||Mounting Rack Assembly 2 – (40″-200″) pipe size||$750.00|
|R4||Transducers with Round circular Clamp – (0.5″-2.0″) Must specify pipe size||$150.00|
|R5||Transducer only – No mounting rack assembly||NC|
* Note: Digital output either Pulse or SS Relay – Digital output not available on portable unit.
Example #1: CU-T-A-A-A-D-A-06-R1 = $3,120.00
Description: Cadillac Transit time ultrasonic Flow meter, 120 VAC, 4-20 mADC Output, no Options, dedicated electronics General purpose area classification, transducers with 6 meters of interconnecting cable, mounting rack assm Rack assembly suitable for lines sizes (1.5″-10″) Transducer suitable for line sizes (1.5″- 40″)
Example #2: CU-E-A-C-B-D-A-06-R1 = $3,795.00
Description: Cadillac Transit time ultrasonic Energy meter, 120 VAC, 4-20 mADC, Pulse, and Modbus RTU Outputs, Matched pair 100 Ohm strap-on RTD Transmitters, dedicated electronics, general purpose area classification, Transducers w/6 meters of interconnecting cable, mounting rack assembly – suitable for lines sizes (1.5″-10″), Transducers suitable for line sizes (1.5″ -40″)