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 GTM116E and GTC116E.
High Sensor Density Multipoint Airflow and Temperature Measurement Monitoring Device
The GTx116e-PC is EBTRON’s top-of-the-line solution for accurate and repeatable measurement in ducts and plenums. The GXT116e-PC features advanced airflow and temperature measurement, alarm capabilities, and the option to connect via BACnet or Modbus. With unparalleled functionality, a ruggedized RH sensor option is available on the GXT116e-PC/H model. The onboard barometric pressure sensor and velocity-weighted temperature accurately calculate relative humidity, enthalpy, and dew point. Both units are ideal for supply, return, and outdoor air intake applications on systems with an airside economizer. Bluetooth® low-energy technology interface is also available.
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%
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%
Type: Ruggedized capacitive polymer Relative Humidity 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 GTX116E-PC/H model with relative humidity 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 and 4 button interface
B.A.S. Connectivity Options
All Transmitters: Three fields 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 with model GTX116e-PC/H).
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; %RH, enthalpy, and dew point with model GTU116e-PC/H 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
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.*
*Order with the /NR option when RF devices are not permitted.
