Description
FEATURES
- 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
- Two analog outputs and one dry contact relay
- Analog outputs can be assigned to one or two airflow locations, temperature and/or notification alarms
- Contact closure relay can be assigned to notification alarms
- “Plug and play” operation
- Field adjust wizard facilitates airflow adjustment when conditions warrant
- Fully field configurable
OVERVIEW
The GF-A2000 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-A2000 provides a linear analog output signal for the average airflow of one or two probes on analog output AO1. A second analog output, AO2, can be configured to output the airflow of the second probe for applications where two probes are installed in separate locations. Analog output AO2 can also be assigned to temperature or one of the notification alarms. A contact closure relay is provided that can be assigned to the notification alarms. The GF-A2000 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.
FUNCTIONALITY
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
USER INTERFACE
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 sensor node/probe
Dual Probe: 2 probes x 1 sensor node/probe
ANALOG OUTPUTS
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
CONTACT CLOSURE RELAY
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, POWER REQUIREMENTS & DIMENSIONS
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]
