The HTx104-F/SI and HTx104-F/DI are EBTRON’s most economical solution for accurate and repeatable airflow measurement in SWSI and DWDI fans. Airflow, temperature and/or airflow alarming are available on all models. Does not affect SWSI or DWDI fan performance.
Advantage III
Hybrid Series
HTx104-F (/SI & /DI)SWSI or DWDI Fan Airflow Measurement with Temperature and Alarm Capability
HTx104-F/SI or DI
Advantage III
Hybrid Series
HTx104-F (/SI & /DI)SWSI or DWDI Fan Airflow Measurement with Temperature and Alarm Capability
- Thermal Dispersion Technology
- Designed for SWSI and DWDI Fans
- NIST‐traceable Calibration
- %‐of‐reading Accuracy
- Airflow and Status Alarm
- 3‐year Warranty
- Temperature Output Capability
- Analog and RS‐485 Output Models
- Throat, Face, and Forward Mounting
- Remote Transmitter with LCD Display
Typical Applications
- Fan Airflow Tracking
- Air Change Verification & Monitoring
- Fan Performance Monitoring
Benefits
- Demonstrate Fan Performance and Operation
- Improve Fan Tracking on VAV Systems
- Comply with ASHRAE Standards
- Save Energy
- Reduce Fan Horsepower
Product Highlights
- Accurate and Repeatable
- Long-term Stability
- Streamline Design
- Adjustable Mounting Brackets
- “Plug and Play” Operation
- Intuitive User Interface
- FEP Plenum Rated Cables
General
Probe and Sensor Node Configurations
SWSI and DWDI fans: 2 probes x 1 sensor node/per probe in each fan inlet
Sensor Node Averaging Method
Airflow: Independent, arithmetic average
Temperature: Independent, velocity weighted or arithmetic average
Listings
UL: UL 873 Listed
CE: European shipments only
BACnet International: BTL Listed (HTN104 transmitter)
Environmental Limits
Probes: -20 to 160 ⁰F [-28.9 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
Temperature sensor: Precision, hermetically sealed, bead-in-glass thermistor
Sensing Node Housing
Material: Glass-filled Polypropylene
Sensor Potting Materials: Waterproof marine epoxy
Airflow Measurement
Accuracy: +2% of reading to NIST-traceable airflow standards (includes transmitter uncertainty)
Calibrated Range: 0 to 10,000 fpm [0 to 50.8 m/s]
Calibration Points: 16
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
Mounting Rods
Material: Zinc plated steel
Mounting Brackets
Material: 304 stainless steel
Mounting Options & Size Limits
Throat: 6 to 66 inches [152.4 to 1676.4mm] (throat diameter)
Forward: 6 to 64 inches [152.4 to 1625.6 mm] (diameter at inlet entrance)
Face: 11 to 77 inches [279.4 to 1955.8] (diameter at inlet entrance)
Probe to Transmitter Cables
Type: FEP jacket, plenum rated CMP/CL2P, UL/cUL listed, -67 to 392 ⁰F [-55 to 200 ⁰C], UV tolerant
Standard Lengths: 10, 25, and 50 ft. [3.1, 7.6 and 15.2 m]
Connecting Plug: 0.60” [15.24 mm] circular DIN
Transmitter
Power Requirement:
24 VAC (22.8 to 26.4 under load) @11V-A
PCB Connections:
Gold-plated PCB interconnects and test points
User Interface:
16-character LCD display and 4 button interface
B.A.S. Connectivity Options
HTA104 Transmitter: Two field selectable (0-5/0-10 VDC or 4-20mA), scalable and isolated analog output signals (AO1=airflow, AO2=temperature or alarm)
HTN104 Transmitter: One field selectable (BACnet MS/TP or Modbus RTU) and isolated RS-485 network connection- Individual sensor node airflow rates and temperatures are available via the network
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 (HTN104 only)
Analog Signal Indication: Yes, on AO2 assignment (HTA104 only)
System Status Alarm
Type: Sensor diagnostic system trouble indication
Visual Indication: Yes, LCD display
Network Indication: Yes (HTN104 only)
Analog Signal Indication: Yes, on AO2 assignment (HTA104 only)
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