US Patent Nos.: 12,066,199; 12,066,205
CA Patent Nos.: 3,069,531; 3,169,641
EP Patent No.: 4081741
MX Patent Nos.: 417881; 428776
BACnet is a registered trademark of ASHRAE. ASHRAE does not endorse, approve or test products for compliance with ASHRAE standards. Compliance of listed products to the requirements of ASHRAE Standard 135 is the responsibility of BACnet International. The BTL logo is a registered trademark of BACnet International.
BACnet and Modbus are available only on GTB116e, GTM116e, GTS116e, and GTC116e.
The GTx116e-P series is EBTRON’s premium multipoint thermal dispersion airflow and temperature measurement solution for accurate, repeatable measurements in ducts and plenums. Multiple sensor nodes provide precise measurement of critical airstream parameters. Advanced airflow and temperature measurement, alarm capabilities, and BACnet® or Modbus® connectivity provide a versatile solution for a wide range of HVAC applications. Select models include an integral relative humidity sensor with onboard barometric pressure sensing and velocity-weighted temperature to calculate relative humidity, enthalpy, and dew point accurately. The GTx116e-P series is ideal for supply, return, exhaust, and outdoor air intake applications.
Probe and Sensor Node Configurations (max.)
Type A Transmitter: 2 probes x 8 sensor nodes/probe
Type B Transmitter: 4 probes x 4 sensor nodes/probe
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
Installed Airflow Accuracy
Ducts/Plenums: ±3% of reading
Non-ducted OA Intakes: better than or equal to ±5% of reading
Sensor Node Averaging Method
Airflow: Independent, arithmetic average
Temperature: Independent, velocity weighted average
Sensor Density (Example: GTx116e-PC)
Sensor density is designated by the final letter in the model number (for example, GTx116e-PC, where C indicates the sensor density). C density is recommended for most HVAC airflow measurement applications, while alternate densities are available to optimize performance for laboratory measurements, compromised installation conditions, fan tracking, or airflow monitoring applications. Select a sensor density below to view the corresponding sizing table.
A, B, C, +, D
Listings & Compliance
UL: 60730-1; CAN/CSA-E60730-1
CE: Yes (/NR option only)
UKCA: Yes (/NR option only)
BACnet International: BTL Listed (GTB116e, GTC116e, GTM116e and GTS116e 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 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%
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: ±0.15⁰F [0.08 ⁰C] to NIST-traceable temperature standards (includes transmitter uncertainty)
Calibrated Range: -20 to 160 ⁰F [-28.9 to 71.1 ⁰C]
Type: Ruggedized capacitive polymer RH sensor
Accuracy: @ 77 ⁰F [25 ⁰C]
20 to 80 %RH: ±2% RH
0 to 20 and 80 to 100 %RH: ±3.5% RH
Temperature Coefficient: 0.07%/⁰F [0.13%/⁰C]
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 onboard barometric pressure sensor.
Tube Material: Gold anodized 6063 aluminum (316 stainless steel with /SS option)
Mounting Brackets
Material: 304 stainless steel
Mounting Options & Size Limits
Insertion: 6 to 191in. [152.4 to 4851 mm]
Stand-off: 6 to 190 in. [152.4 to 4826 mm]
Internal: 10 to 194 in. [254.0 to 4928 mm]
Note: The /H option is only available on probes >14 in. [355.6 mm] and availability varies based on sensor density. See sensor density tables for availability.
Probe to Transmitter Cables
Type: FEP jacket, plenum rated CMP/FT6/CL2P, UL/cUL listed, -67 to 302 ⁰F [-55 to 150 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: 13/16” [20.63 mm] nominal diameter
Power Requirement: 24 VAC (22.8 to 26.4 under load) @20V-A max.
PCB Connections: Gold-plated 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 Transmitters: 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 Transmitter1: One additional field selectable (BACnet MS/TP or Modbus RTU) and isolated RS-485 network
GTB116e Transmitter1: One additional isolated RS-485 and one additional isolated Ethernet network connections field configurable as follows:
GTM116e Transmitter1: One additional isolated Ethernet network connection field configurable as follows:
GTS116e Transmitter1: Two additional isolated Ethernet network connections field configurable as follows:
Note: B.A.S. network connections can simultaneously support BACnet IP or BACnet Ethernet, Modbus TCP, and TCP/IP.
GTU116e Transmitter: One additional USB connection for thumb drive data-logging of sensor node airflow rates and temperatures
Alarms
Airflow: Low and/or high user defined setpoint alarm
System Status: Sensor diagnostic system trouble indication
EB-Link Bluetooth® low energy Interface for Android® and iPhone:® Display real-time airflow, velocity-weighted temperature, humidity, enthalpy, dew point, individual sensor node airflow/temperature data, settings and diagnostics2
.
1 Individual sensor node airflow rates and temperatures are available via the network.
2 Order with the /NR option when RF devices are not permitted.
EBTRON Placement Tool (xls) – Download
EBTRON Placement Guide – Download
Rectangular Insertion Installation Guide – Download
Rectangle Internal Installation Guide – Download
Rectangle Standoff Installation Guide – Download
Round Insertion Installation Guide – Download
Oval Type A Insertion Installation Guide – Download
Oval Type B Insertion Installation Guide – Download
Oval Type C Insertion Installation Guide – Download
Start-Up Guide GTA116e-P – Download
Start-Up Guide GTB116e-P – Download
Start-Up Guide GTC116e-P – Download
Start-Up Guide GTF116e-P – Download
Start-Up Guide GTM116e-P – Download
Start-Up Guide GTS116e-P – Download
