The BAPI BA/NO2-D-BB is a Duct Mount Nitrogen Dioxide Sensor
BAPI’s Nitrogen Dioxide Sensor offers enhanced electrochemical sensing with outstanding accuracy at low concentrations. The Duct unit samples duct air using an aspiration tube. The Rough Service unit features a ventilated BAPI-Box and is ideal for parking ramps, equipment rooms and warehouses.
The sensor has field selectable NO2 ranges of 0 to 2.5, 0 to 5, 0 to 7.5 and 0 to 10 ppm. It also has field selectable outputs of 0 to 5, 1 to 5, 0 to 10 and 2 to 10 VDC as well as a 3-wire 4 to 20 mA output. The LCD is backlight for 10 seconds after a button push.
Two independent SPDT alarm contacts switch at field selectable NO2 concentrations of 1.0, 2.5, 5.0, 7.5 and 10.0 ppm. Two independent SPDT alarm contacts switch at 5 field-selectable NO2 concentrations from 1 to 10 ppm. An alarm timer holds the output relays on for a fixed time after the NO2 level has fallen below 80% of setpoint. This allows additional fan run time to be sure that the NO2 has been purged.
Sensor elements last approximately 7 years and the sensor module is field replaceable. The sensor element is self tested daily for proper operation.
The Rough Service unit features a ventilated BAPI-Box and is ideal for parking ramps, equipment rooms and warehouses.
| Power | 18 to 28 VAC, 7.2 VA Max; 18 to 40 VDC, 180 mA Max |
|---|---|
| Alarm Timer | 0, 1, 5 & 10 minutes |
| Accuracy | ±5.0% of full scale |
| Environmental Operation Range | 14 to 122°F (-10 to 50°C) • 5 to 95% RH Noncondensing |
| Alarm Relay Setpoints | 1.0, 2.5, 5.0, 7.5 or 10 ppm |
| Field Selectable Analog Outputs | 3-wire 4 to 20 mA; 0 to 5 VDC, 1 to 5 VDC; 0 to 10 VDC, 2 to 10 VDC |
| Response Time | <80 seconds from 10% to 90% of range |
| Field Wiring Terminals | Pluggable Screw Terminals, 14 to 24 AWG |
| Alarm Relays | 2 Independent, Dry SPDT (Form C); 2 Amps at 24 VAC/DC, Resistive; 140 VA Inrush, 48 VA Holding at 24 VAC |
| Field Selectable Ranges | 0 to 2.5 ppm, 0 to 5.0 ppm, 0 to 7.5 ppm, 0 to 10.0 ppm |
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