ACI A/20K-A-50'-4X : Bendable Copper Averaging Temperature Sensor, 20K Thermistor, 50' Probe, NEMA 4X Enclosure
Applications:
- Air Handlers
- Roof Top Units
- Mixed Air / Discharge /Supply Air Temperature Monitoring
- Data Centers
- Hospitals
The ACI Thermistor Copper Averaging Series features a copper sensing element with AWG Etched Teflon colored lead wires to differentiate the different sensor types. The averaging sensors provide a better average temperature of the air inside the duct when compared to a single point duct sensor. Each of the elements is sealed to prevent moisture intrusion and includes a foam pad to seal the duct and dampen vibrations. The benefits of using a copper sensing element are that it has improved thermal conductivity and higher corrosion resistance than similar aluminum style averaging sensors. Additionally, copper has been proven to have an antibacterial effect to many of the airborne contaminants, mold and bacteria found in duct systems.
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: | “-4X” Enclosure: Polystyrene Plastic, -40 to 70oC (-40 to 158oF), UL94-V2, NEMA 4X (IP 66) |
| Storage Temperature Range | -40 to 85°C (-40 to 185°F) |
| Sensor Operation Temperature Range: | -40 to 302°F (-40 to 150°C) |
| Operating Humidity Range: | 10 to 95% RH, non-condensing |
| Sensor Material | Sensor Diameter: | Copper | 0.210” (5.34 mm) nominal |
| Fitting Material | Flammability Rating: | Polyamide 66 (High Performance Nylon) | UL94-HB |
| Foam Pad Material/Flammability Ratings | Neoprene/EPDM/SBR Polymer | UL94-HBF; FMVSS-302; MIL-R-6130C |
| Lead Length | Conductor Size: | 12” (30.5 cm) | 26 AWG (0.40 mm) |
| 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
 | Bendable Copper Averaging Temperature Sensor Data Sheet |
| ACI Averaging Installation & Operation Instructions |
- Sensor Type:
- Averaging
- Averaging Type:
- Bendable Copper
- Temperature Element:
- 20K
- Probe Length:
- 50 Foot
- Enclosure:
- NEMA 4X Enclosure
