ACI A/3K-A-24'-GD : Bendable Copper Averaging Temperature Sensor, 3K Thermistor, 24' Probe, Galvanized Steel Enclosure

ACI A/3K-A-24'-GD : Bendable Copper Averaging Temperature Sensor, 3K Thermistor, 24' Probe, Galvanized Steel 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. Each sensor is manufactured with 4 or 9 sensing points determined by the length of the sensing element. 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. Our standard enclosures include the galvanized “-GD” or plastic duct enclosure with hinged cover “-PB”. Each unit includes nylon wire ties and mounts with optional copper capillary and universal plastic mounting clips, NEMA/IP Rated Weatherproof enclosures and NIST certificates as referenced on the back of the product data sheet.

• Sensor Type | Sensor Curve: Thermistor | Non-Linear, NTC (Negative Temperature Coefficient)
• Number Sensing Points | Number Wires: 8’ and 12’ Lengths: Four | 24’ and 50’ Lengths: Nine | Two (Non-Polarity Sensitive)
• Sensor Series Output @ 25oC (77oF ) (Lead Wire Colors):
  • A/AN (Type III): 10KΩ nominal | (White/White)
  • A/CP (Type II): 10KΩ nominal | (White/Green)
  • A/20K: 20KΩ nominal | (Brown/Blue)
• Accuracy 0-70°C (32-158°F):
  • 8’ & 12’ Lengths: +/-0.20°C (+/-0.36°F); A/1.8K: +/-1.00°C (+/-1.80°F); A/10KS: +/-0.60°C (+/-1.10°F)
  • 24’ & 50’ Lengths: +/-0.20°C (+/-0.36°F); A/1.8K: +/-1.00°C (+/-1.80°F); A/10KS: +/-0.60°C (+/-1.10°F)
• Stability: Sensor Dependent; Contact ACI for more information on specific sensor
• Response Time (63% Step Change): 15 Seconds nominal
• Power Dissipation Constant:
  • 8’ and 12’ Lengths: 4 mW/°C except A/1.8K Series = 2 mW/°C | A/100KS Series: 6 mW/°C
  • 24’ & 50’ Lengths: 6 mW/°C except A/1.8K Series = 3 mW/°C | A/100KS Series: 9 mW/°C
• Enclosure Specifications (Temperature, Flammability, NEMA/IP Ratings):
  • “-GD” Enclosure: Galvanized Steel, -40 to 115°C (-40 to 239°F), NEMA 1 (IP10)
  • “-PB” Enclosure: ABS Plastic, -30 to 90°C (-22 to 194°F), UL94-HB, Plenum Rated
  • “-BB” Enclosure: Aluminum, -40 to 115°C (-40 to 239°F), NEMA 3R (IP 14)
  • “-4X” Enclosure: Polystyrene Plastic, -40 to 70°C (-40 to 158°F), 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
• Product Dimensions | Product Weight: See table on back of Product Data sheet
• Agency Approvals: RoHS2, WEEE