EB-Flow

Series 1000

EF-x1000-T

Airflow Measurement with Temperature Capability

EF-x1000-T

EB-Flow II

Series 1000

EF-x1000-T

Airflow Measurement with Temperature Capability

The EF-x1000-T (ELF) is EBTRON’s economical measurement solution for round ducts between 4 and 16 inches in diameter. Ideal for most small duct airflow measurement and volumetric airflow tracking applications. Low flow performance, temperature capability and connectivity options make this a better choice than traditional differential pressure averaging arrays, rings and crosses.

Thermal Dispersion Technology
Cost Effective Single Probe
NIST-traceable Calibration
%-of-reading Accuracy
Velocity Pressure Output Option

Temperature Output Models Available
Analog and RS-485 Output Models
Duct Insertion Mounting
Integral Transmitter
3-year Warranty

EF-x1000-T Overview PDF

Overview
Specifications

Typical Applications

High Performance CV/VAV Terminal Box Measurement
Small Duct Outdoor Air Delivery Monitoring
Small Duct Airflow Tracking
Hospital Pressurization
Laboratory Pressurization

Benefits

Improve Terminal Box Performance with Turndown
Comply with ASHRAE Standards
Satisfy LEED Prerequisites and Credits
Provide Acceptable IAQ
Save Energy
Reduce Liability
Improve Performance

Product Highlights

Accurate & Repeatable
Low Airflow Capability
Long-term Stability
Unsurpassed Quality
Easy to Install
Very Cost Effective High-performance Solution

General

Probe and Sensor Node Configurations

1 probe x 1 sensor node/probe (4 inch [101.6 mm] probe)

1 probe x 2 sensor nodes/probe (5 to 16 inch [127.0 to 406.4 mm] probes)

Installed Airflow Accuracy¹

±3% of reading

Sensor Node Averaging Method

Airflow: Independent arithmetic average

Temperature: Independent velocity weighted average

Listings and Compliance

UL: 873 and CSA C22.2 No. 24 (EF-A1000-T/ELF-F0x Only)

FCC: This device complies with Part 15 of the FCC rules

RoHS: This device id RoHS2 compliant

Environmental Limits

Temperature:

Probes: 0 to 2,000 fpm [0 to 10.16 m/s]: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Probes: 0 to 3,000 fpm [0 to 15.24 m/s]: 0 to 120 ⁰F [-17.8 to 48.9 ⁰C]

Transmitter: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Humidity: (non-condensing)

Probes: 0 to 100%

Transmitter: 5 to 95%

Individual Sensing Nodes

Sensing Node Sensors

Self-heated sensor: Precision, hermetically sealed, bead-in-glass thermistor probe

Temperature sensor: Precision, hermetically sealed, bead-in-glass thermistor probe

Sensing Node Housing

Material: Glass-filled Polypropylene (Kynar® with /SS option)

Sensor Potting Materials: Waterproof marine epoxy

Sensing Node Internal Wiring

Type: Kynar® coated copper

Airflow Measurement

Accuracy: ±3% of reading to volumetric airflow standards (includes transmitter uncertainty)

Calibrated Range: 0 to 3,000 fpm [0 to 15.24 m/s]

Calibration Points: 7

Temperature Measurement

Accuracy: ±0.15 ⁰F [0.08 ⁰C] to NIST-traceable temperature standards (includes transmitter uncertainty)

Calibrated Range: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Calibration Points: 3

Sensor Probe Assembly

Tube

Material: Mill finish 6063 aluminum (316 stainless steel with /SS option)

Mounting Brackets

Material: 304 stainless steel

Mounting Options & Size Limits

Insertion: 4, 5, 6, 7, 8, 9, 10, 12, 14, & 16 inch round [101.6, 127.0, 152.4, 177.8, 203.2, 228.6, 254.0, 304.8, 355.6 & 406.4 mm]

Integral Transmitter

Power Requirement:

24 VAC (22.8 to 26.4 under load) @5V-A

User Interface:

DIP switch

B.A.S. Connectivity Options

EF-A1000 Transmitter: One field selectable (0-10/2-10 VDC* or 0-5/1-5 VDC* – specify at time of order), scalable and protected analog output signal (AO1=airflow)

EF-A1001 Transmitter: Two field selectable (0-10/2-10 VDC* or 0-5/1-5 VDC* – specify at time of order), scalable and protected analog output signals (AO1=airflow, AO2 = temperature) * The VDC output circuit of the EF-A1000 transmitter can drive the input circuit of devices designed to measure 4-wire current loops with a resistive load ≥250 ohms.

EF-N1000 Transmitter: One field selectable (BACnet MS/TP or Modbus RTU) and non-isolated RS-485 network connection – Individual sensor node airflow rates and temperatures are available via the network (provide individual 24 VAC transformers at each EF-N1000 transmitter for applications requiring isolated RS-485)

System Status Alarm

Type: Sensor diagnostic system trouble indication

Visual Indication: Yes, LED on circuit board

Network Indication: Yes (EF-N1000 only)

¹Installed airflow accuracy is the actual system accuracy expected and includes sampling uncertainty of the sensor probes when installation meets or exceeds placement guidelines.

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Data Sheets

EF-x1000-T Overview
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Installation Manual

EF-A1000-T Installation
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Installation Manual

EF-N1000-T Installation
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Sensor Probe Installation

-T Round Insertion Installation Guide
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Guide Specifications

Guide Specs [PDF]
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Guide Specifications

Guide Specs [DOC]
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Test Records

Saltwater and Acid Test Report
Download | Print

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Test Records

FCC Statement of Compliance
Download | Print

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Test Records

UL Certificate of Compliance
Download | Print

EB-Flow

Airflow Measurement with Temperature Capability

EB-Flow II

Airflow Measurement with Temperature Capability

Typical Applications

Benefits

Product Highlights

General

Probe and Sensor Node Configurations

1 probe x 1 sensor node/probe (4 inch [101.6 mm] probe)

1 probe x 2 sensor nodes/probe (5 to 16 inch [127.0 to 406.4 mm] probes)

Installed Airflow Accuracy¹

±3% of reading

Sensor Node Averaging Method

Airflow: Independent arithmetic average

Temperature: Independent velocity weighted average

Listings and Compliance

UL: 873 and CSA C22.2 No. 24 (EF-A1000-T/ELF-F0x Only)

FCC: This device complies with Part 15 of the FCC rules

RoHS: This device id RoHS2 compliant

Environmental Limits

Temperature:

Probes: 0 to 2,000 fpm [0 to 10.16 m/s]: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Probes: 0 to 3,000 fpm [0 to 15.24 m/s]: 0 to 120 ⁰F [-17.8 to 48.9 ⁰C]

Transmitter: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Humidity: (non-condensing)

Probes: 0 to 100%

Transmitter: 5 to 95%

Individual Sensing Nodes

Sensing Node Sensors

Self-heated sensor: Precision, hermetically sealed, bead-in-glass thermistor probe

Temperature sensor: Precision, hermetically sealed, bead-in-glass thermistor probe

Sensing Node Housing

Material: Glass-filled Polypropylene (Kynar® with /SS option)

Sensor Potting Materials: Waterproof marine epoxy

Sensing Node Internal Wiring

Type: Kynar® coated copper

Airflow Measurement

Accuracy: ±3% of reading to volumetric airflow standards (includes transmitter uncertainty)

Calibrated Range: 0 to 3,000 fpm [0 to 15.24 m/s]

Calibration Points: 7

Temperature Measurement

Accuracy: ±0.15 ⁰F [0.08 ⁰C] to NIST-traceable temperature standards (includes transmitter uncertainty)

Calibrated Range: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Calibration Points: 3

Sensor Probe Assembly

Tube

Material: Mill finish 6063 aluminum (316 stainless steel with /SS option)

Mounting Brackets

Material: 304 stainless steel

Mounting Options & Size Limits

Insertion: 4, 5, 6, 7, 8, 9, 10, 12, 14, & 16 inch round [101.6, 127.0, 152.4, 177.8, 203.2, 228.6, 254.0, 304.8, 355.6 & 406.4 mm]

Integral Transmitter

Power Requirement:

24 VAC (22.8 to 26.4 under load) @5V-A

User Interface:

DIP switch

B.A.S. Connectivity Options

EF-A1000 Transmitter: One field selectable (0-10/2-10 VDC* or 0-5/1-5 VDC* – specify at time of order), scalable and protected analog output signal (AO1=airflow)

System Status Alarm

Type: Sensor diagnostic system trouble indication

Visual Indication: Yes, LED on circuit board

Network Indication: Yes (EF-N1000 only)

¹Installed airflow accuracy is the actual system accuracy expected and includes sampling uncertainty of the sensor probes when installation meets or exceeds placement guidelines.

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