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Wall Mount Sensor

GS-N100-W

CO2 Measurement with ABC Logic and
RS-485 BACnet MS/TP and Modbus RTU

The GS-N100-W is a high-performance CO2 sensor housed in an attractive enclosure designed to meet the demands of modern demand control ventilation (DCV) applications. Engineered with Telaire’s proven NDIR sensing technology and GreenTrol’s advanced signal processing circuitry, the GS-N100-W ensures superior accuracy and reliability. With BACnet MS/TP and Modbus RTU firmware, the GS-N100-W outperforms competitive CO2 sensors, making it the only approved network wall-mounted CO2 sensor for GreenTrol outdoor air controllers.

FEATURES

Specifications

FUNCTIONALITY

CO2 Measurement: Provides the CO2 level in ppm via the network connection, System Status Alarm: Yes

USER INTERFACE

Baud Rate, Protocol and Addressing: DIP switch

End of Line Termination: Jumper

Important: Modification of the factory default settings requires that power is cycled to the device. It is recommended that each device is bench configured prior to installation OR settings are provided at the time of order so that the device can be factory configured prior to shipment.

CO₂ SENSOR

Technology: Telaire Non Dispersive Infrared (NDIR)

Range: 0 to 2,000 ppm

Accuracy: 400 to 1,250 ppm ±30 ppm or 3% of reading, whichever is greater
1,250 to 2,000 ppm ±5% of reading + 30 ppm

Temperature Dependence: 0.36% FS/°F [0.2% FS/°C]

Pressure Dependence: 0.33% of reading per 0.1 in. [2.54 mm] Hg

Stability: <2% of FS over life of sensor (15 year typical)

Calibration Interval: Not required when ABC logic in enabled

Response Time: <2 minutes for 90% step change typical

Signal Update: Every 4 seconds

Warmup Time: 2 minutes operational, 10 minutes to achieve maximum accuracy

NETWORK CONNECTIONS

N1

Type: Non-Isolated, field selectable MS/TP BACnet master or Modbus RTU connection

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

ENVIRONMENTAL LIMITS, POWER REQUIREMENTS & DIMENSIONS

Environmental Limits

Temperature: 32 to 122 ⁰F [0 to 50 ⁰C]

Humidity: 5 to 95%

Power Requirement: 24 VAC (22.8 to 26.4 under load) @1.5V-A

Dimensions: 4.56H x 3.25W x 1.09D in. [115.8 x 82.6 x 27.7 mm]

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