The Macurco TX-12-ND is a line voltage, dual relay Nitrogen Dioxide (NO2) detector, controller and transducer. The TX-12-ND utilizes an internal switching power supply that is capable of using line voltage between 100 and 240VAC and 50-60Hz. The TX-12-ND has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of Nitrogen Dioxide and provide feedback and automatic exhaust fan control to help reduce Nitrogen Dioxide concentrations in parking garages, maintenance facilities or other commercial applications.
The TX-12-ND is a low level meter capable of detecting from 0-20 ppm of Nitrogen Dioxide. It is factory calibrated and 100% tested for proper operation, but can also be calibrated in the field.
The TX-12-ND meets the Uniform Building Code for enclosed garages and meets OSHA standards for CO exposure.
Power | 100-240VAC (50 to 60Hz) |
Connections | Plugs/Terminals |
Current | 1.0A max |
Fan Relay | 5A, 240VAC, pilot duty, SPDT, latching or non-latching |
Fan Relay Actuation | Selectable at OFF, 0.5, 0.7, 1.0, 1.2, 1.5, 1.7, 2.0, 2.2, 2.5 (default), 2.7, 3.0, 3.2, 3.5, 3.7, 4.0, 4.2, 4.5, 4.7, 5.0 ppm |
Fan Delay Settings | 0, 1, 3 (default), 5 and 10 minutes |
Fan Min. Runtime Settings | OFF (default), 3, 5, 10 or 15 minutes |
Alarm Relay | 0.5A@120VAC, 60VA |
Alarm Relay Actuation | Selectable N.O. (default) or N.C. |
Alarm Relay Settings | OFF, 1, 2, 3, 4, 5 (default), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 ppm |
Current Loop | 4-20 mA for 0-20 ppm NO2, selectable to off (default) or on |
Buzzer | 85dBA at 10 feet, selectable to off (default) or on |
Digital Display | 3 digit LED selectable to off (default) or on |
Operating Environment | 0°F to 125°F (-18°C to 52°C). 10 to 90% RH |
Mounting Box | 4" x 4" electrical box (not included) |
Size | 4½" x 4" x 2¾" (11.4 x 10.2 x 7 cm) |
Shipping Weight | 1 pound (0.45 kg) |
Color | Dark Gray |