Omega Products SYS-FTBG-101-FLSC-C3-AL Installation Manual

CONTENTS

1. Introduction --------------------------------------------------------------- 2

2. Specifications (Turbine)------------------------------------------------- 3

3. Specifications (Transmitter)-------------------------------------------- 4

4. Model Number------------------------------------------------------------ 5

5. Principal of Operation--------------------------------------------------- 6

Signal Transmitter ------------------------------------------------------- 7 Material Selection and Construction ---------------------------------- 8 Flowmeter Calibrations ------------------------------------------------- 8

6. Installation----------------------------------------------------------------- 9

7. Transmitter Wiring -----------------------------------------------------11

Flowmeter Input -------------------------------------------------------- 12 Analog Output----------------------------------------------------------- 13 Alarm Output------------------------------------------------------------ 14 RS232 Communications Port------------------------------------------ 16

8. Maintenance and Troubleshooting-----------------------------------17

Pickup Coil Testing----------------------------------------------------- 17 Bearing Testing --------------------------------------------------------- 17 Bearing Replacement--------------------------------------------------- 18

9. Communication Protocols ---------------------------------------------19

Message Format and Timeout----------------------------------------- 19 Messages----------------------------------------------------------------- 21

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1. Introduction

The following information is provided for the proper installation and maintenance of your instrument.

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2. Specifications (Turbine)

Over-range: 150% of maximum flow (intermittently)

Turn Down Range: Dependent on gas density at user’s operating

conditions.

Linearity: ±1% of reading typical

Repeatability: ±0.25% of reading over repeatable range

Temperature Range: -157 to 150 C (-250 to 300 F)

End Fittings: Standard: NPT

Optional: MS flared and flanged styles

Bearing Styles: Self lubricating, ceramic hybrid ball bearings

Materials: 316/316L dual rated stainless steel with

17.4 pH rotor.

Consult OMEGA Flow Engineering

for other available materials.

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3. Specifications (Transmitter)

Input Signal Type: MCP pickup

Input frequency range: 0.2 Hz to 4 KHz

Signal level: 10 mV rms to 30 Vdc

Power supply: 13-30 Vdc, 50mA max, reverse polarity protection 100-240 Vac, (optional)

Analog Output: 4 to 20mA, 1 to 5V, (dip switch selectable) 24mA overflow condition

Load resistance: Max 650 Ω at 24 Vdc

Accuracy: ±0.02% of full scale

Temperature drift: 40 ppm °C

Pulse output: 0 to 5V

Recommended Minimum Load Resistance: 50kΩ

Pulse Scaling: Divide by 1, 10, 100 per flow unit of measure

Hi/Lo Alarm (Optional): Relay (2A, 30 Vdc), 0 to 5V, Open Collector (0.5A, 30 Vdc)

Communications RS232 port for configuration and diagnostics

Linearization: Up to 20 points

Operating temperature: -40 to 85

C (-40 to 185CoF)

Humidity: 0 to 90% non-condensing

Enclosure: Explosion-Proof FM: Class I, Div. 1, Gr. ABCD Class II/III, Div. 1, Gr. EFG CSA: Class I, Div. 1, Gr. ABCD Class II, Div 1, Gr. EFG, Class III Type 4X Ex d IIC, Class I, Zone 1, IP 66 ATEX: Ex II 2GD Ex d IIC IEC: Ex d IIC IP68

Regulatory: CE compliant

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4. Model Number

Press.

Omega

Model Number

SYS/FTBG-101/FLSC-C3 1/4 1/2 30° 0.3-1.6 .13-1.6 0.1 0.5 SYS/FTBG-102/FLSC-C3 1/4 1/2 15° 0.65-3.5 .35-3.5 0.02 0.1 SYS/FTBG-103/FLSC-C3 3/8 1/2 30° 0.6-2.3 .27-2.3 0.1 0.5 SYS/FTBG-104/FLSC-C3 3/8 1/2 15° 1.3-5 .6-5 0.02 0.1 SYS/FTBG-105/FLSC-C3 5/8 3/4 30° 1-4.4 .45-4.4 0.1 0.5 SYS/FTBG-106/FLSC-C3 5/8 3/4 15° 2.17-9.5 1-10 0.025 0.125 SYS/FTBG-107/FLSC-C3 3/4 3/4 30° 1.2-9.2 .54-9.2 0.1 0.5 SYS/FTBG-108/FLSC-C3 3/4 3/4 15° 2.6-20 1.2-20 0.02 0.1 SYS/FTBG-109/FLSC-C3 1 1 30° 1.6-20 .72-20 0.2 1 SYS/FTBG-110/FLSC-C3 1 1 15° 3.5-43 1.6-43 0.04 0.2 SYS/FTBG-111/FLSC-C3 11/2 11/2 30° 3.5-55.5 1.6-55.6 0.15 0.75 SYS/FTBG-112/FLSC-C3 11/2 11/2 15° 7.6-120 3.5-120 0.035 0.175 SYS/FTBG-113/FLSC-C3 2 2 30° 7-93 3.1-93 0.3 1.5 SYS/FTBG-114/FLSC-C3 2 2 15° 15-200 7-200 0.0625 0.3125 SYS/FTBG-115/FLSC-C3 3 3 30° 15-363 6.7-363 0.4 2 SYS/FTBG-116/FLSC-C3 3 3 15° 35-600 15-600 0.1 0.5 SYS/FTBG-101/FLSC-C3-AL 1/4 1/2 30° 0.3-1.6 .13-1.6 0.1 0.5 SYS/FTBG-102/FLSC-C3-AL 1/4 1/2 15° 0.65-3.5 .35-3.5 0.02 0.1 SYS/FTBG-103/FLSC-C3-AL 3/8 1/2 30° 0.6-2.3 .27-2.3 0.1 0.5 SYS/FTBG-104/FLSC-C3-AL 3/8 1/2 15° 1.3-5 .6-5 0.02 0.1 SYS/FTBG-105/FLSC-C3-AL 5/8 3/4 30° 1-4.4 .45-4.4 0.1 0.5 SYS/FTBG-106/FLSC-C3-AL 5/8 3/4 15° 2.17-9.5 1-10 0.025 0.125 SYS/FTBG-107/FLSC-C3-AL 3/4 3/4 30° 1.2-9.2 .54-9.2 0.1 0.5 SYS/FTBG-108/FLSC-C3-AL 3/4 3/4 15° 2.6-20 1.2-20 0.02 0.1 SYS/FTBG-109/FLSC-C3-AL 1 1 30° 1.6-20 .72-20 0.2 1 SYS/FTBG-110/FLSC-C3-AL 1 1 15° 3.5-43 1.6-43 0.04 0.2 SYS/FTBG-111/FLSC-C3-AL 11/2 11/2 30° 3.5-55.5 1.6-55.6 0.15 0.75 SYS/FTBG-112/FLSC-C3-AL 11/2 11/2 15° 7.6-120 3.5-120 0.035 0.175 SYS/FTBG-113/FLSC-C3-AL 2 2 30° 7-93 3.1-93 0.3 1.5 SYS/FTBG-114/FLSC-C3-AL 2 2 15° 15-200 7-200 0.0625 0.3125 SYS/FTBG-115/FLSC-C3-AL 3 3 30° 15-363 6.7-363 0.4 2 SYS/FTBG-116/FLSC-C3-AL 3 3 15° 35-600 15-600 0.1 0.5 FLSC-C1-LIQ FLSC-C3-LIQ FLSC-C3-AL-LIQ

FLSC-C3 FLSC-C3-AL

Meter

Fitting

Size

For use with FTB liquid turbines 1" riser, to be phased in as replacements for FLSC-18, FLSC-28, FLSC-34, FLSC-35 and FLSC-51 series.

Replacement signal conditioner ONLY for gas turbine system 3/4" riser.

Blade Angle

0.05#/FT3 Range ACFM

0.25#/FT 3 Range

ACFM

Drop

(PSID)

0.05# /FT3

Press.

Drop

(PSID)

0.25# /FT3

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5. Principal of Operation

Omega Engineering Turbine Flowmeter includes integrally mounted microprocessor-based signal transmitter. The transmitter is mounted in an explosion proof enclosure.

Pickup Coil

Riser (Threaded)

Flowmeter Housing

Flow Straightener

Deflector Cones

The turbine flow sensor consists of a rotor assembly which is supported on a shaft held in place by triple tube clusters and secured with locking nuts within the flowmeter housing.

The rotor is free to spin on a self lubricated ceramic ball bearing. A modulated carrier pickup coil (MCP) is attached on the exterior of the flowmeter housing.

A low mass rotor design allows for rapid dynamic response. The deflector cones eliminate downstream thrust on the rotor and allows for dynamic positioning of the rotor between deflector cones.

The dynamic positioning of the low mass rotor provides wider rangeability and longer bearing life than that of conventional turbine flowmeters. Integral flow straightening tubes minimize the effects of upstream flow turbulence.

As the gas flows through the flowmeter the rotor spins at rate proportional to the volumetric gas flowrate.

Each rotor blade passing through the pickup coil generates an electrical pulse. The frequency of the pulses is proportional to flowrate. The summation of pulses represents total amount of gas volume passed through the meter.

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The number of pulses generated per cubic foot is called the calibration factor or K-Factor. This calibration factor is programmed into the electronic transmitter to calculate correct flowrate.

The MCP pickup is a type of coil which eliminates pickup drag and requires a Modulated Carrier Signal Conditioner circuit. The MCP works on a principle where the motion of the rotor modulates a high frequency signal. The conditioner demodulates, filters, amplifies, and shapes the resulting signal prior to sending it to the microcontroller.

Signal Transmitter

The transmitter is a DC or AC powered microprocessor-based unit, which provides a 0 – 5 V, TTL/CMOS pulse output, a 4 to 20 mA analog output and optional High/Low flow alarm output. Optional 20point linearization is available to correct for flowmeter non-linearities, improving overall system accuracy.

An RS232 communications port is located under the top plate of the transmitter. It allows unit to be configured using a Windows based program included with the unit. Configuration and remote monitoring may also be performed using any PC based communications program (e.g., HyperTerminal) or ASCII terminal.

Pickup

Coil

Amplifier Microprocessor

RS232

Port

Signal Transmitter Block Diagram

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Pulse

Output

Analog Output

Material Selection and Construction

The housing is made of 316 stainless steel. The rotor is made of 17.4 pH stainless steel. Bearings are shielded, ceramic hybrid ball bearings and are made of 440C stainless steel. Bearings are self lubricating type and do not require any external lubrication.

Flowmeter Calibrations

The standard calibration provided with an Omega gas turbine flowmeter consists of a 10-point water calibration that is traceable to NIST. Based on this water calibration, we derive an average k-factor for water for the flowmeter. The average k-factor for water is then converted to ACF by using the following equation.

K-Factor / .134 = pulses/ACF

The uncertainty of this calibration methodology is +/-2%

The gas flowmeters are optionally available with actual gas calibrations at an additional charge. The uncertainty of an actual gas calibration is +/-0.5%. Actual gas calibrations are generally recommended for custody transfer (billing) applications.

The k-factor on turbine flowmeters used on gas service is NOT density dependent. The flowmeter “turndown” range is density dependent. The higher the operating density; the better the flow turndown range is on any Omega gas turbine flowmeter.

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