ACI A/20K-FA-8'-BB : Flexible Cable Averaging Temperature Sensor, 20K Thermistor, 8' Probe, Aluminum NEMA 3R Enclosure
Applications:
- Air Handlers
- Roof Top Units
- Mixed Air / Discharge /Supply Air Temperature Monitoring
- Data Centers
- Hospitals
The ACI Thermistor Flexible Averaging Series features an 18 AWG Plenum Rated cable sensing element with two, 12 inch 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.
Specifications
| Sensor Type | Sensor Curve: | Thermistor | Non-Linear, NTC (Negative Temperature Coefficient) |
| Sensor Series Output @ 25°C (77°F ) (Lead Wire Colors): | A/20K: 20KΩ nominal | (Brown/Blue) |
| Accuracy 0-70°C (32-158°F): | +/-0.20°C (+/-0.36°F) |
| Response Time (63% Step Change) | 15 Seconds nominal |
| Enclosure Specifications: | “-BB” Enclosure: Aluminum, -40 to 115oC (-40 to 239oF), NEMA 3R (IP 14) |
| Storage Temperature Range | 0 to 75°C (32 to 167°F) | -20 to 75°C (-4 to 167°F) |
| Sensor Operation Temperature Range: | 0 to 75°C (32 to 167°F) | -20 to 75°C (-4 to 167°F) |
| Operating Humidity Range: | 10 to 95% RH, non-condensing |
| Sensor Material: | Low Smoke PVC | CL2P | CMP Plenum Rated Cable |
| Sensor Diameter: | 0.170” (4.32mm) nominal |
| Lead Length | Conductor Size: | 12” (30.5cm) | 22 AWG (0.65mm) |
| Lead Wire Insulation | Wire Ratings: | Etched Teflon (PTFE) Colored Leads | MIL-W-16878/4 (Type E) |
| Conductor Material: | Silver Plated Copper |
| Agency Approvals: | RoHS2, WEEE |
Datasheets
 | Flexible Averaging Multipoint Temperature Sensor Data Sheet |
| ACI Averaging Installation & Operation Instructions |
- Sensor Type:
- Averaging
- Averaging Type:
- Flexible Cable
- Temperature Element:
- 20K
- Probe Length:
- 8 Foot
- Enclosure:
- Aluminum NEMA 3R Enclosure
