The HTx104‐PE is EBTRON’s most economical solution for larger systems when “out‐of‐ the‐box” installed accuracy is not required and field adjustment is acceptable. Perfect for LEED outdoor air delivery monitoring or other low sensor density airflow measurement applications.
Advantage III
Hybrid Series
HTx104-PEAirflow Measurement with Temperature & Alarm Capability
HTx104-PE
Advantage III
Hybrid Series
HTx104-PEAirflow Measurement with Temperature & Alarm Capability
- Thermal Dispersion Technology
- Supports up to 4 Sensor Nodes
- NIST‐traceable Calibration
- %-of-reading Accuracy
- Airflow and Status Alarm
- Temperature Output Capability
- Analog and RS-485 Output Models
- Three Mounting Styles
- Remote Transmitter with LCD Display
- 3‐year Warranty
Typical Applications
- LEED Outdoor Air Delivery Monitoring
- Small Duct Airflow Tracking
- Hospital Pressurization
- Laboratory Pressurization
- Air Change Verification & Monitoring
- System Performance Monitoring
Benefits
- Comply with ASHRAE Standards
- Demonstrate Code Compliance
- Satisfy LEED Prerequisites and Credits
- Provide Acceptable IAQ
- Save Energy
- Reduce Liability
- Improve Performance
Product Highlights
- Accurate and 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 Cables
General
Probe and Sensor Node Configurations (max.)
1 probe x 4 sensor nodes/probe
2 probes x 2 sensor nodes/probe
Installed Airflow Accuracy¹
Ducts/Plenum ≤ 2 sq.ft. [0.18 sq.m]: ±3% of reading
All other applications and sizes: Unspecified
PE Sensor Density Rules (typical)
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
Temperature:
Probes: -20 to 160 ⁰F [-28.9 to 71.1 ⁰C]
Transmitter: -20 to 120 ⁰F [-28.9 to 48.9 C]
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: ±2% of reading to NIST-traceable airflow standards (includes transmitter uncertainty)
Calibrated Range: 0 to 5,000 fpm [0 to 25.4 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
Tube
Material: Gold anodized 6063 aluminum (316 stainless steel with /SS option)
Mounting Brackets
Material: 304 stainless steel
Options & Standard Size Limits2
Insertion, and Stand-off: 6 to 120 in. [152.4 to 3048 mm]
Internal: 8 to 120 in. [203.2 to 3048 mm]
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, 15, 20, 25, 30, 40 and 50 ft. [3.1, 4.6, 6.1, 7.6, 9.1, 12.2 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)
¹Installed airflow accuracy is the actual system accuracy expected and includes sampling uncertainty of the sensor probes when installation meets or exceeds placement guidelines.
²Custom probes are available up to 192 inches. Contact factory for more information.
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