ACI Thermistor Duct

Features

  • Designed to be used in smaller duct applications and includes an insulation pad for sealing your duct and dampening vibration.
  • The standard enclosure options are the galvanized enclosure “-GD” or plastic duct enclosure with hinged cover “-PB”.
  • This series can be ordered with optional NEMA/IP rated weather proof enclosures and NIST certificates.
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Automation Components, Inc. (ACI) creates, manufactures, and distributes building automation sensors for the heating, ventilation, and air conditioning (HVAC) Industry. Dpstar is ACI Authorised Distributor in Malaysia. Our product lines include Temperature Sensors, Relative Humidity Sensors, Current Sensors, Pressure Sensors, Gas Sensors, and Wireless Sensors.

The ACI Thermistor Duct Series features a stainless steel probe with two, 22 AWG Etched Teon colored lead wires to differentiate the different sensor types. The sensors in this series are manufactured using ACI’s proved double encapsulation process to eliminate the effects of moisture on the sensors and increased response times from our high quality, thermally conductive epoxy. The duct sensor is designed to be used in smaller duct applications and includes an insulation pad for sealing your duct and dampening vibration. The sensor length should be determined by the width or diameter of your duct such that the tip of the probe reaches the approximate center of the duct. Our standard enclosure options are the galvanized enclosure “-GD” or plastic duct enclosure with hinged cover “-PB”. On larger ducts, you may want to refer to our Rigid or Bendable Copper Averaging sensor for increased sensing points and better temperature control. This series can be ordered with optional NEMA/IP rated weather proof enclosures and NIST certificates as referenced on the back of the product data sheet.

Applications

  • Roof Top Units
  • Air Handlers
  • Supply/Discharge/Return/Mixed Air Temperatures

The ACI Thermistor Bullet Probe Series is covered by ACI’s Five (5) Year Limited Warranty.

Specification

Sensor Type | Sensor Curve Thermistor | Non-Linear, NTC (Negative Temperature Coe cient)
Number Sensing Points | Number Wires One | Two (Non-Polarity Sensitive)
Sensor Output @ 25ºC (77ºF) | (Lead Wire Colors) A/1.8K: 1.8KΩ nominal | (Red/Yellow)
A/3K: 3KΩ nominal | (White/Brown)
A/AN (Type III): 10KΩ nominal | (White/White)
A/AN-BC: 5.238KΩ nominal | (White/Yellow)
A/CP (Type II): 10KΩ nominal | (White/Green)
A/CSI: 10KΩ nominal | (Green/Yellow)
A/10KS: 10KΩ nominal | (White/Blue)
A/10K-E1: 10KΩ nominal | (Gray/Orange)
A/20K: 20KΩ nominal | (Brown/Blue)
A/50K: 50KΩ nominal | (Brown/Yellow)
A/100KS: 100KΩ nominal | (Black/Yellow)
Sensor Accuracy 0-70ºC (32-158ºF) +/-0.2ºC (+/-0.36ºF) except A/10K-E1 Series: +/-0.3ºC (+/-0.54ºF)
A/1.8K Series: +/- 0.5ºC @ 25ºC (77ºF) and (+/-1.0ºC) (+/-1.8ºF)
Power Dissipation Constant 3 mW/ºC except A/1.8K Series: 1 mW/ºC | A/10K-E1 Series: 2 mW/ºC
Stability Sensor Dependent; Contact ACI for more information on speci c sensor
Response Time (63% Step Change) 10 Seconds nominal
Sensor Operating Temperature Range -40ºC (-40ºF) to 150ºC (302ºF)
Enclosure Speci cations (Temperature,
Material, Flammability, NEMA/IP Ratings)
“-GD” Enclosure: Galvanized Steel, -40 to 115ºC (-40 to 239ºF), NEMA 1 (IP10)
“-PB” Enclosure: ABS Plastic, UL94-HB, -30 to 90ºC (-22 to 194ºF), Plenum Rated
“-BB” Enclosure: Aluminum, -40 to 121ºC (-40 to 250ºF), Plenum Rated, NEMA 3R
“-4X” Enclosure: Polystyrene Plastic, UL94-V2, -40 to 70ºC (-40 to 158ºF), NEMA 4X (IP 66)
Storage Temperature Range -40 to 85ºC (-40 to 185ºF)
Operating Humidity Range 10 to 95% RH, non-condensing
Probe Material | Probe Diameter 304 Stainless Steel | 0.250” (6.35mm)
Fitting Material | Flammability Rating Polyamide 66 (High Performance Nylon) | UL94-HB
Foam Pad Material | Flammability Rating Neoprene/EPDM/SBR Polymer | UL94-HBF; FMVSS-302; MIL-R-6130C
Lead Length | Conductor Size 4”, 6” and 8” Probes: 14” (35.6 cm) | 12” and 18” Probes: 24” (61 cm) | 22 AWG (0.65 mm)
Lead Wire Insulation | Wire Rating Etched Te on (PTFE) Colored Leads | Mil Spec 16878/4 Type E)
Conductor Material Silver Plated Copper
Agency Approvals CE, RoHS2, WEEE

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