EBTRON - Model GTX116E-PC/H -Multipoint Airflow and Temperature Monitoring Device
The GTx116e-PC is EBTRON’s top-of-the-line solution for accurate and repeatable measurement in ducts and plenums. Ruggedized RH sensor option (/H), onboard barometric pressure sensor and velocity-weighted temperature results in accurate relative humidity, enthalpy and dew point calculations. Ideal for supply, return and outdoor air intake applications on systems with an airside economizer. Bluetooth® low energy technology interface.
- Thermal Dispersion Technology
- Supports up to 16 Sensor Nodes
- NIST-traceable Calibration
- %-of-reading Accuracy
- Airflow and Status Alarm
- Velocity-weighted Temperature
- Output %RH, Enthalpy or Dew Point (requires /H option)
- Three Mounting Styles
- Remote Transmitter with LCD Display
- 3-year Warranty
- Outdoor Air Delivery Monitoring and Control
- Differential Airflow Tracking for Building Pressurization Control
- Airside Economizer Enthalpy Switchover Detection
- Supply Air Humidity Monitoring and Control
- DOAS Dew Point Monitoring
- Comply with ASHRAE Standards and Building Codes
- Satisfy LEED Prerequisites and Credits
- Provide Acceptable IAQ
- Save Energy
- Reduce Liability
- Improve Economizer Performance
- Best Installed Accuracy
- Low Airflow Capability
- Volumetric or Mass Airflow Measurement
- Long-term Stability
- “Plug and Play” Operation
- Unsurpassed Quality
- Intuitive User Interface
- Waterproof Sensor Assembly
- FEP Plenum Rated Cables
Probe and Sensor Node Configurations (max.)
2 probes x 8 sensor nodes/probe
4 probes x 4 sensor nodes/probe
Installed Airflow Accuracy
Ducts/Plenum: ±3% of reading
Non-ducted OA Intakes: better than or equal to ±5% of reading
PC Sensor Density
Refer to the PC sensor density table.
Sensor Node Averaging Method
Airflow: Independent, arithmetic average
Temperature: Independent, velocity weighted average
Listings and Compliance
UL: UL 60730-1; CAN/CSA-E60730-1-15
CE: Conforms (all shipments)
UKCA: UK shipments only
BACnet International: BTL Listed (GTC116e and GTM116e transmitters)
FCC: This device complies with Part 15 of the FCC rules
RoHS: This device is RoHS2 compliant
Environmental Limits
Temperature:
Probes: -20 to 160 ºF [-28.9 to 71.1 ºC]Transmitter: -20 to 120 ºF [-28.9 to 48.9 ºC]
Humidity: (non-condensing)
Probes: 0 to 100%
Transmitter: 5 to 95%
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 [25.4 m/s]Calibration Points: 16
Temperature Measurement
Type: Velocity-weighted average
Accuracy: ±0.15°F [0.08 °C] to NIST-traceable temperature standards (includes transmitter uncertainty)
Calibrated Range: -20 to 160 °F [-28.9 to 71.1 °C]
Type: Ruggedized capacitive polymer RH sensor
Accuracy: @ 77 °F [25 °C]20 to 80% RH: ±2% RH
0 to 20 and 80 to 100% RH:±3.5%RH
Temperature Coefficient: 0.07%/°F [0.13%/°C]
Long-Term Drift: 0.5% RH/year
Calculated Measurements: Velocity-weighted relative humidity, velocity-weighted enthalpy, and dew point using measured RH, velocity-weighted temperature, and on-board barometric pressure sensor.
Tube
Material: Gold anodized 6063 aluminum (316 stainless steel with /SS option)
Mounting Brackets
Material: 304 stainless steel
Mounting Options & Standard Size Limits²
Insertion: 6 to 191 in. [152.4 to 4851 mm]Stand-off: 6 to 190 in. [152.4 to 4826 mm]Internal: 8 to 194 in. [203.2 to 4928 mm]Note: The /H option is only available on probes >18 in.[457.2 mm]
Probe to Transmitter Cables
Type: FEP jacket, plenum rated CMP/CL2P, UL/cUL listed, -67 to 302 °F [-55 to 150 °C], 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: 13/16” [20.63 mm] nominal diameter with gold-plated connector pins
Power Requirement:
24 VAC (22.8 to 26.4 under load) @20V-A max.
Connector Receptacle Pins and PCB Connections:
Gold-plated receptacle pins, PCB interconnects, PCB edge fingers, and test points
User Interface:
2 line x16-character backlit LCD display and 4 button interface
B.A.S. Connectivity Options
All Transmitter: Three field selectable (0-5/0-10 VDC or 4-20mA), scalable and isolated analog output signals (AO1=airflow, AO2=temperature or alarm, AO3=%RH, enthalpy or dew point). when / H option is provided
GTA116e Transmitter: No additional connectivity to B.A.S.
GTC116e Transmitter: One additional 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
GTM116e Transmitter: One additional isolated Ethernet
(simultaneously supported BACnet Ethernet or BACnet IP, Modbus TCP and TCP/IP) network connection – Individual sensor node airflow rates and temperatures are available via the network
GTF116e Transmitter: One additional isolated Lonworks Free Topology network connection
GTU116e Transmitter: One additional USB connection for thumb drive data-logging of sensor node airflow rates and temperatures
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
Analog Signal Indication: Yes, on AO2 assignment
System Status Alarm
Type: Sensor diagnostic system trouble indication
Visual Indication: Yes, LCD display
Analog Signal Indication: Yes, on AO2 assignment
EB-Link Bluetooth Interface for Android® and iPhone®:
Display real-time airflow, velocity-weighted temperature, humidity, enthalpy, dew point, individual sensor node airflow/temperature data, settings and diagnostics.