NIST Traceable Volumetric Flow Rate, NIST Traceable Volumetric Flow Rate, Temperature and Pressure Temperature and Pressure

Calibration/Audit Devices for FRM Calibration/Audit Devices for FRM and Continuous Ambient Monitorsand Continuous Ambient Monitors

TAMS

Continuous Particulate Training Workshop

October 21 - 24, 2003

BGI Instruments

IntroductionIntroduction

Federal, State and Tribal AQ Agencies Require Flow Calibration and Audits on all Gravimetric Particulate Samplers and Continuous Monitors

Commercial Vendor Claim “Primary Flow” and “NIST Traceability” are Confusing

A NIST Traceable Volumetric Flow Rate, Ambient Temperature and Pressure Field Calibration/Audit Device Has Been Developed and Tested

InvestigationInvestigation

NIST Primary Standard vs. Flow Transfer Standard

Requirements for a Field Calibrator Current Methods Available DeltaCal & TriCal NIST Traceable

Calibrators Meet Requirements

NIST Primary & EPA Flow Transfer NIST Primary & EPA Flow Transfer Standards Standards

–NIST “PrimaryStandard” Flow Calibration FacilityNIST “PrimaryStandard” Flow Calibration Facility–Colorado Engineering Experiment Station (CEESI) Colorado Engineering Experiment Station (CEESI) –Titanium Vessels used for Gravimetric Analysis as Titanium Vessels used for Gravimetric Analysis as the NIST Primary Standardthe NIST Primary Standard–Pressurized, Evacuated and Weighed for Primary Pressurized, Evacuated and Weighed for Primary Volume.Volume.

–NIST “Transfer Standard”NIST “Transfer Standard”– Flow Device Traceable to NIST (CEESI) PrimaryFlow Device Traceable to NIST (CEESI) Primary

CEESI - NIST Primary Calibration LabCEESI - NIST Primary Calibration Lab

Priorities of a Field CalibratorPriorities of a Field Calibrator

– NIST Transfer Standard, Accuracy to <2%to Primary NIST Transfer Standard, Accuracy to <2%to Primary

– Calibrator must be Field Usable to EPA FRM SpecsCalibrator must be Field Usable to EPA FRM Specs

– Insensitive to Atmospheric ConditionsInsensitive to Atmospheric Conditions

– Calibrator should not add artificial pressure to Calibrator should not add artificial pressure to sampler to interfere with electronic flow controllersampler to interfere with electronic flow controller

– Portable & Battery Powered Portable & Battery Powered

– Direct Reading of Flow Rate, Ambient Temperature, Direct Reading of Flow Rate, Ambient Temperature, & Barometric Pressure & Barometric Pressure

– RS232 Calibration Report-Digital Calibration ReportRS232 Calibration Report-Digital Calibration Report

““Flow Transfer Standard” CalibratorsFlow Transfer Standard” Calibrators

– Bubble MeterBubble Meter

– GilibratorGilibrator™ (Wet) - ™ (Wet) - (Excellent for Indoor Use)(Excellent for Indoor Use)

– Frictionless PistonFrictionless Piston - ( - (Not Field Hardened, Dirty Piston)Not Field Hardened, Dirty Piston)

– Bios/DryCal/DC-LiteBios/DryCal/DC-Lite™ (Dry)- 3% low bias ™ (Dry)- 3% low bias

– Orifice- Quartz TubeOrifice- Quartz Tube - - (Sensitive to Wind)(Sensitive to Wind)

– Streamline/ChinookStreamline/Chinook™ (Dry) – adds system ™ (Dry) – adds system pressure, double of a Venturipressure, double of a Venturi

– Venturi- Venturi- - - (Field Hardened with Gust Cap)(Field Hardened with Gust Cap)

– BGI DeltaCalBGI DeltaCal (Dry) – flow, temperature & pressure (Dry) – flow, temperature & pressure

DeltaCal Calibration KitDeltaCal Calibration Kit

DeltaCal

Measurements:• Barometric Pressure• Ambient Temperature• Filter Temperature• Volumetric Flow Rate• Digital Output for

Recording Field Data• Software to Print

Summary report

Schematic Diagram of DeltaCalSchematic Diagram of DeltaCal

DeltaCal NIST Traceable SpecificationsDeltaCal NIST Traceable Specifications

– Operable Range –30 to 40°COperable Range –30 to 40°C

– 2 to 20 aLPM Model DC 12 to 20 aLPM Model DC 1

– 10 to 60 aLPM Model DC 10010 to 60 aLPM Model DC 100

– +/- 1% of NIST+/- 1% of NIST

– Temp Sensor Range – 40 to 50°CTemp Sensor Range – 40 to 50°C

– < +/- 0.5°C Difference to NIST< +/- 0.5°C Difference to NIST

– Pressure Range 400-800mmHgPressure Range 400-800mmHg

– < +/- 2mmHg of NIST< +/- 2mmHg of NIST

Calibrator Software Screen DisplayCalibrator Software Screen Display

Historical Record

User Configurable

All Readings in one Display

Auto Resolution

ASCII File Export

Flow Statistics

Summary Printed ReportSummary Printed Report

TriCal CalibratorTriCal Calibrator

Operable Range -30 to 40°C

Flow Range 0.1 to 30.0Lpm

Venturi #1 0.1 - 1.2Lpm Venturi #2 1.2 -6.0Lpm Venturi #3 6.0 - 30Lpm

Barometric Pressure Ambient Temperature (Option) Filter Temperature

Calibrating a Continuous PM MonitorCalibrating a Continuous PM Monitor

CPM Display

BGI - NIST Certified Flow Calibration BGI - NIST Certified Flow Calibration LaboratoryLaboratory

– < Insert photo of BGI Test Bench >< Insert photo of BGI Test Bench >

ConclusionsConclusions

BGI DeltaCal & TriCal are Flow Transfer Standards Directly Traceable to NIST Primary

Field Hardened Device with Low Pressure Drop and DeltaCal Includes Wind Gust Cap

Cost Includes 4 Measurements, Rather than just One $1695.

Affordable Re-Calibration by a Single Vendor $150.

US EPA Tested – Exclusive PEP PM2.5 Network & PM-Coarse Method Development Program