EB-Flow

Series 2000

EF-x2000-T

Airflow Measurement with Temperature & Alarm Capability

EF-x2000-T

EB-Flow II

Series 2000

EF-x2000-T

Airflow Measurement with Temperature & Alarm Capability

The EF-x2000-T is EBTRON’s top-of-the-line measurement solution for round ducts between 4 and 16 inches in diameter. Ideal for most small duct airflow measurement and volumetric airflow tracking applications. More features than the EF-x1000-T make this the best choice for all small duct measurement applications.

Thermal Dispersion Technology
Cost Effective Single Probe
NIST-traceable Calibration
%‐of‐reading Accuracy
Airflow and Status Alarm

Temperature Output Capability
Analog and RS‐485 Output Models
Dry Contact Relay
Remote Transmitter with LCD Display
3‐year Warranty

EF-x2000-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
Volumetric or Mass Airflow Measurement
Long-term Stability
“Plug-and-Play” Operation
Intuitive User Interface
Waterproof Sensor Assembly
FEP Plenum Rated Cable

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: 60730-1, 60730-2-9; CAN E60730-1, E60730-2-9 (EF-A2000-T
Only)

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

RoHS: This device is RoHS2 compliant

Environmental Limits

Temperature:

Probes: 0 to 2,000 fpm [0 to 10.16 m/s]: -20 to 160 ⁰F [-28.9 to 71.1 ⁰C]

Probes: 0 to 3,000 fpm [0 to 15.24 m/s]: 0 to 160 ⁰F [-17.8 to 71.1 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 160 ⁰F [-28.9 to 71.1 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, and 16 inch round [101.6, 127.0, 152.4, 177.8, 203.2, 228.6, 254.0, 304.8, 355.6 & 406.4 mm]

Probe to Transmitter Cables

Type: FEP jacket, plenum rated CMP/CL2P, UL/cUL listed, -67 to 302 ⁰F [-55 to 150 ⁰C], UV tolerant

Standard Lengths: 3, 10, 25 and 50 ft. [0.9, 3.1, 7.6 and 15.2 m]

Connecting Plug: 0.60” [15.24 mm] nominal diameter

Transmitter

Power Requirement:

24 VAC (22.8 to 26.4 under load) @8V-A

User Interface:

16-character LCD display and 4 button interface

B.A.S. Connectivity Options

EF-A2000 Transmitter: Two field selectable (0-5/1-5/0-10/2-10 VDC*), scalable and protected analog output signals (AO1=airflow, AO2 = temperature or alarm)

* The VDC output circuit of the EF-A2000 transmitter can drive the input circuit of devices designed to measure 4-wire current loops with a resistive load ≥250 ohms.

EF-N2000 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-N2000 transmitter for applications requiring isolated RS-485)

Relay

Type: Dry Contact w/ onboard jumper to drive a remote LED (R1=alarm)

Status: N.O. or N.C. via user setup configuration

Rating: 30 VDC or 24 VAC @ 3 amp. max.

Airflow Alarm

Type: Low and/or high user defined setpoint alarm

Tolerance: User defined % of setpoint

Delay: User defined

Zero Disable: Alarm can be disabled when the airflow rate falls below the low limit cutoff value (unoccupied periods)

Reset Method: Manual or automatic

Visual Indication: Yes, LCD display

Network Indication: Yes (EF-N2000 only)

Analog Signal Indication: Yes, on AO2 assignment (EF-A2000 only)

Contact Closure Relay: Yes, on R1 assignment

System Status Alarm

Type: Sensor diagnostic system trouble indication

Visual Indication: Yes, LCD display

Network Indication: Yes (EF-N2000 only)

Analog Signal Indication: Yes, on AO2 assignment (EF-A2000 only)

Contact Closure Relay: Yes, on R1 assignment

¹ Installed 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-x2000-T Overview
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Tools

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Sensor Probe Installation

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Wiring Guides

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Wiring Guides

EF-N2000-T Wiring Guide
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Startup Guides

EF-A2000-T Startup Guide
Download | Print

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Startup Guides

EF-N2000-T Startup Guide
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Guide Specifications

Guide Specs [PDF]
Download | Print

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Guide Specifications

Guide Specs [DOC]
Download | Print

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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 & Alarm Capability

EB-Flow II

Airflow Measurement with Temperature & Alarm 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: 60730-1, 60730-2-9; CAN E60730-1, E60730-2-9 (EF-A2000-T Only)

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

RoHS: This device is RoHS2 compliant

Environmental Limits

Temperature:

Probes: 0 to 2,000 fpm [0 to 10.16 m/s]: -20 to 160 ⁰F [-28.9 to 71.1 ⁰C]

Probes: 0 to 3,000 fpm [0 to 15.24 m/s]: 0 to 160 ⁰F [-17.8 to 71.1 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 160 ⁰F [-28.9 to 71.1 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, and 16 inch round [101.6, 127.0, 152.4, 177.8, 203.2, 228.6, 254.0, 304.8, 355.6 & 406.4 mm]

Probe to Transmitter Cables

Type: FEP jacket, plenum rated CMP/CL2P, UL/cUL listed, -67 to 302 ⁰F [-55 to 150 ⁰C], UV tolerant

Standard Lengths: 3, 10, 25 and 50 ft. [0.9, 3.1, 7.6 and 15.2 m]

Connecting Plug: 0.60” [15.24 mm] nominal diameter

Transmitter

Power Requirement:

24 VAC (22.8 to 26.4 under load) @8V-A

User Interface:

16-character LCD display and 4 button interface

B.A.S. Connectivity Options

EF-A2000 Transmitter: Two field selectable (0-5/1-5/0-10/2-10 VDC*), scalable and protected analog output signals (AO1=airflow, AO2 = temperature or alarm)

* The VDC output circuit of the EF-A2000 transmitter can drive the input circuit of devices designed to measure 4-wire current loops with a resistive load ≥250 ohms.

Relay

Type: Dry Contact w/ onboard jumper to drive a remote LED (R1=alarm)

Status: N.O. or N.C. via user setup configuration

Rating: 30 VDC or 24 VAC @ 3 amp. max.

Airflow Alarm

Type: Low and/or high user defined setpoint alarm

Tolerance: User defined % of setpoint

Delay: User defined

Zero Disable: Alarm can be disabled when the airflow rate falls below the low limit cutoff value (unoccupied periods)

Reset Method: Manual or automatic

Visual Indication: Yes, LCD display

Network Indication: Yes (EF-N2000 only)

Analog Signal Indication: Yes, on AO2 assignment (EF-A2000 only)

Contact Closure Relay: Yes, on R1 assignment

System Status Alarm

Type: Sensor diagnostic system trouble indication

UL: 60730-1, 60730-2-9; CAN E60730-1, E60730-2-9 (EF-A2000-T
Only)