The GF-N3000 transmitter is functionally the same as the GF-A2000 with the excpetion that the BAS connection is via RS-485 field selectable BACnet MS/TP or Modbus RTU. In addition to airflow, temperature and alarm capability, device status is also available via the network.
Airflow/Temperature Transmitter Module w/Contact Closure Airflow Alarm
Provide continuous verification of airflow rates
Ideal for monitoring applications
Connect to an application controller to maintain airflow rates and/or temperature
Demonstrate compliance with ASHRAE Standards 62.1, 90.1 and 189.1
Satisfy LEED prerequisites and document code compliance
Improve indoor air quality and thermal comfort
Compatible with GreenTrol IAT integrated thermal dispersion airflow/temperature sensors
LCD with push-button user interface standard
Measures airflow and temperature
Airflow and system status notification alarms
RS-485 network connection can be field configured for BACnet MS/TP or Modbus RTU
Airflow can be assigned to one or two airflow locations when more than one probe is provided
Contact closure relay can be assigned to notification alarms
“Plug and play” operation
Fully field configurable
Field adjust wizard facilitates airflow adjustment when conditions warrant.
The GF-N3000 can be provided with a single integrated IAT-DI duct probe or, one or two integrated IAT-UI or IAT-US universal mount probes.
The GF-N3000 provides a network connection for the average airflow of one or two probes. It can also be configured to output the airflow of the second probe for applications where two probes are installed in separate locations. Temperature and notification alarms are available via the network. The airflow and temperature of individual sensor nodes are available via the network, if desired. A contact closure relay is provided that can be assigned to the notification alarms. The GF-N3000 can be configured for I-P or SI units of measure.
Although the transmitter is “plug and play” and operates on power up, it is fully configurable in the field using the pushbutton interface and LCD.
Airflow Measurement: Provides the average airflow rate of one or two probes, or optionally of individual probes, in FPM [m/s] or CFM [LPS] on the LCD and via the network.
Temperature Measurement: Provides the velocity weighted or arithmetic average temperature in ⁰F [ ⁰C] on the LCD and to analog output AO2 when AO2 is assigned to temperature.
High/Low Airflow Alarm
System Trouble Alarm
Note: Alarms can be assigned to the contact closure relay
Display: 16-character alpha-numeric LCD
Navigation: 4-button interface
Integrated Sensor Capability
Type: Accepts GreenTrol IAT-DI, IAT-UI and IAT-US Thermal Dispersion Airflow and Temperature Measurement Probe (required). See appropriate IAT product data sheet for probe information.
Available Configurations: IAT-DI Probes
Single Probe: 1 probe x 1 or 2 sensor nodes/probe
Available Configurations IAT-UI and IAT-US Probes
Single Probe: 1 probe x 1 sensor node/probe
Dual Probe: 2 probes x 1 sensor node/probe
Type: Non-isolated, field selectable MS/TP BACnet master or
Modbus RTU connection (provide separate transformer to each GFN1000-
DI or an RS-485 network isolator if isolation is required)
B.A.S. Object/Register Read/Write Access: Yes
Device Load: 1/8 load
Supported Baud Rates: 9.6, 19.2, 38.4 and 76.8 kbaud
Contact Closure Relay
Type: Dry contact w/ onboard jumper to drive a remote LED
Assignment: Notification alarms
Status: Normally Open (N.O.)
Rating: 30 VDC or 24 VAC @ 3 amp. max
Environmental Limits, Power Requirements & Dimensions
Temperature: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]
Humidity: 5 to 95%
Important: Provide a weather-proof enclosure if the transmitter module is mounted outdoors
Power Requirement: 24 VAC (22.8 to 26.4 under load) @8.5V-A
Dimensions: 3.57H x 6.00W x 1.50D in. [90.7 x 152.4 x 38.1 mm]
156 Holly View Lane Loris, SC 29569 Toll Free 877 446 8765