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Transmitter Module w/Contact Closure Airflow Alarm
The GF-A2000 transmitter accepts one IAT-DI probe or up to two IAT-UI/US probes. The transmitter has two analog output signals. One output signal can be assigned to the average airflow of the connected probes or the airflow of the individual probe connected to “P1” when two IAT-UI/DI probes are used. The second output signal can be assigned to the probe connected to “P2” or the average temperature of the connected probes. A contact closure relay is also provided that can be assigned to one or more of the built-in alarms.
Airflow Measurement: Provides the average airflow rate in FPM [m/s] or CFM [LPS] on the LCD and to analog output AO1 and optionally AO2 when two probes are provided
Configurable Ranges: 0-5V/1-5V or 0-10V/2-10V- specify at time of order
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
Notification Alarms
High/Low Airflow Alarm
System Trouble Alarm
Note: Alarms can be assigned to the contact closure relay or analog output AO2
Display: 16-character alpha-numeric LCD
Navigation: 4-button interface
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 sensor node/probe
Dual Probe: 2 probes x 1 sensor node/probe
AO1
Assignment: Average airflow output signal of connected probes (P1 and/or P2) or P1 if AO2 is assigned to P2
Configurable Ranges: A0-5V, 0-10V or 2-10V
AO2
Assignment: Airflow output signal of P2, average temperature output signal of connected probes or notification alarm
Configurable Ranges: A0-5V, 0-10V or 2-10V
Note: The VDC output circuit can drive the input circuit of devices designed to measure 4-wire, 4-20 mA, current loops with a resistive load ≥250 ohms
R1
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
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]
