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 series GTM116E and GTC116E.
High Sensor Density Multipoint Airflow and Temperature Measurement Monitoring Device with an Integral Relative Humidity Sensor
The GTx116e-PC/H is EBTRON’s top-of-the-line solution for accurate and repeatable measurement in ducts and plenums. Ruggedized RH sensor, 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.
Probe and Sensor Node Configurations (max.)
2 probes x 8 sensor nodes/probe
4 probes x 4 sensor nodes/probe
Installed Airflow Accuracy
Ducts/Plenums: ±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 & Compliance
UL: UL 60730-1; CAN/CSA-E60730-1-15
CE: Non-UK European shipments only
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 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%
Note: The /H model providing RH is only available on probes >18 in. [457.2 mm]
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 on-board barometric pressure sensor.
*Order with the /NR option when RF devices are not permitted.
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 >18 in [457.2 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: 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 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).
GTA116e Transmitter: No additional connectivity to B.A.S.
GTC116e Transmitter: It has one additional field selectable (BACnet MS/TP or Modbus RTU) and an 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; %RH, enthalpy and dew point when /H option is provided.
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® 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 diagnostics.*
