Built for large-duct mixed air monitoring, this averaging duct temperature sensor reads 32 to 167°F (0 to 75°C) along 50' (15.2 m) of flexible plenum-rated cable element with a 10 kΩ type III NTC thermistor. In addition, nine sensing points average the full duct cross-section. It includes nylon wire ties and mounts and a galvanized steel NEMA 1 enclosure.
Built for large-duct mixed air monitoring, this averaging duct temperature sensor reads 32 to 167°F (0 to 75°C) along 50' (15.2 m) of flexible plenum-rated cable element with a 10 kΩ type III NTC thermistor. In addition, nine sensing points average the full duct cross-section. It includes nylon wire ties and mounts and a galvanized steel NEMA 1 enclosure.
The ACI Thermistor Flexible Averaging Series features an 18 AWG Plenum Rated cable sensing element with two, 12" 22 AWG Etched Teflon colored lead wires to differentiate the different sensor types. The sensors in this series are multi-point. Averaging sensors provide a better overall average temperature of the actual air inside larger ducts when compared to that of a single point sensor.
All flexible averaging sensors are limited to being used in applications where operating temperatures are limited and high humidity, chemical resistance, and UV light sources aren’t required. Each of the sensing elements is protected using a dual wall adhesive lined heat shrink tubing to provide a basic level of moisture protection. The sensor length should be determined by the size of your duct.
Standard enclosure options include a galvanized junction box “-GD” or plastic duct enclosure with hinged cover “-PB”. Each unit includes nylon wire ties and mounts for mounting. Optional copper capillary or universal plastic mounting clips, NEMA/IP Weather proof enclosures and NIST Certificates are available as referenced in the ordering grid on the back of the product data sheet.
Applications
| Sensor | Type: Thermistor Curve: Non-linear, NTC (Negative Temperature Coefficient) Sensing points: Nine Number of wires: Two (non-polarity sensitive) Output at 77°F (25°C): 10 kΩ nominal (Type III) Lead wire colors: White/white Operating temperature range: 32 to 167°F (0 to 75°C) Accuracy: ±0.36°F (±0.2°C), from 32 to 158°F (0 to 70°C) |
| Configuration | Flexible plenum rated cable averaging |
| Performance | Stability: Sensor dependent; contact ACI for more information on specific sensor Response time (63% step change): 15 seconds nominal Power dissipation constant: 6 mW/°C |
| Sensing Element | Jacket material: Low Smoke PVC Cable ratings: CL2P or CMP Plenum Rated Cable |
| Enclosure | Material: Galvanized steel Rating: NEMA 1 (IP10) |
| Lead Wire | Length: 12" (30.5 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: MIL-W-16878/4 (Type E) Conductor material: Silver plated copper |
| Environmental Conditions | Storage temperature range: -4 to 167°F (-20 to 75°C) Operating humidity range: 10 to 90% RH, non-condensing |
| Agency Approvals | RoHS2, WEEE |
| Dimensions | Sensor length: 50' (15.2 m) Sensing element diameter: 0.170" (4.32 mm) nominal |
| Sensor | Type: Thermistor Curve: Non-linear, NTC (Negative Temperature Coefficient) Sensing points: Nine Number of wires: Two (non-polarity sensitive) Output at 77°F (25°C): 10 kΩ nominal (Type III) Lead wire colors: White/white Operating temperature range: 32 to 167°F (0 to 75°C) Accuracy: ±0.36°F (±0.2°C), from 32 to 158°F (0 to 70°C) |
| Configuration | Flexible plenum rated cable averaging |
| Performance | Stability: Sensor dependent; contact ACI for more information on specific sensor Response time (63% step change): 15 seconds nominal Power dissipation constant: 6 mW/°C |
| Sensing Element | Jacket material: Low Smoke PVC Cable ratings: CL2P or CMP Plenum Rated Cable |
| Enclosure | Material: Galvanized steel Rating: NEMA 1 (IP10) |
| Lead Wire | Length: 12" (30.5 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: MIL-W-16878/4 (Type E) Conductor material: Silver plated copper |
| Environmental Conditions | Storage temperature range: -4 to 167°F (-20 to 75°C) Operating humidity range: 10 to 90% RH, non-condensing |
| Agency Approvals | RoHS2, WEEE |
| Dimensions | Sensor length: 50' (15.2 m) Sensing element diameter: 0.170" (4.32 mm) nominal |
