ACI High Temperature Duct Sensors & Transmitters

Features

  • The ACI High-Temperature Duct Series sensors and transmitters are single-point duct sensors featuring a three-wire RTD sensor assembly and a 316 Series stainless steel probe.
  • The three wire sensors can be used with a two-wire transmitter by connecting the two (White) colored wires to one of the RTD terminal blocks with the third wire (Red) wire going to the second RTD Terminal block.
  • Standard enclosure options include the “-GD” Galvanized or “-BB” Aluminum weatherproof enclosure.
  • NIST Certificates are available.
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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 High-Temperature Duct Series sensors and transmitters are single-point duct sensors featuring a three-wire RTD sensor assembly and a 316 Series stainless steel probe. The three wire sensors can be used with a two-wire transmitter by connecting the two (White) colored wires to one of the RTD terminal blocks with the third wire (Red) wire going to the second RTD Terminal block. The purpose of the third wire is to compensate for external lead wire resistance that will affect the accuracy of your sensor output when using a three-wire temperature transmitter or sensor configuration on your Building Management System or PLC (Programmable Logic Controller. ACI recommends the use of 18 AWG lead wires to reduce the external lead wire resistance when using the A/100/1K-3W-D style Platinum RTD series sensors without temperature transmitter. The operating specifications are for both the sensor and transmitter as designated in the specification table. Standard enclosure options include the “-GD” Galvanized or “-BB” Aluminum weatherproof enclosure. NIST Certificates are available for all of the configurations listed in the ordering grid on the back of the product datasheet. For best accuracy, ACI recommends the use of the TTM100 or TTM1K Series Matched transmitters with a 3 NIST Calibration Certificate since they include a second calibration step in which the RTD and transmitter are calibrated together as a system, which will remove most of the sensor error over the calibrated temperature span of the transmitter.

Dimension

Applications

  • Burners
  • Boilers
  • Stacks
  • Exhaust
  • Incinerators
  • Ovens
  • Conveyor Systems
  • Process Heating
  • Process Control

The ACI High Temperature Duct Sensors & Transmitters Series is covered by ACI’s Five (5) Year Limited Warranty.

Specification

Transmitter Supply Voltage | Supply Current +8.5 to 32 VDC (Reverse Polarity Protected) | 25 mA minimum
250 Ohm Load: +13.5 to 32 VDC | 500 Ohm Load: +18.5 to 32 VDC
Maximum Load Resistance (Terminal Voltage – 8.5 V) | 0.020 A
Output Signal Current: 4-20 mA (2-Wire Loop Powered) | Voltage: 1-5 VDC or 2-10 VDC (3-Wires)
Calibration Transmitter Accuracy | Linearity Temp. Spans < 500ºF (260ºC): +/- 0.2% | Temp. Spans > 500ºF (260ºC): +/- 0.5%
Temperature Drift Temp. Spans < 100ºF (38ºC): +/- 0.04%/ºF | Temp. Spans > 100ºF (38ºC): +/- 0.02%
Warm Up Time | Warm Up Drift 10 Minutes | +/- 0.1%
Operating | Storage Temperature Range -40ºF (-40ºC) to 185ºF (85ºC)
Operating Humidity Range 0 to 90%, non-condensing
Calibration Temperature Spans1 Minimum Temp. Span: 50ºF (28ºC) | Maximum Temp. Span: 800ºF (426ºC)
Matched Callibratede Temperature Spans (A/TTM Models) Ranges -49ºF to 311ºF (-45ºC to 155ºC)
Connections | Wire Size Screw Terminal Blocks (Non-Polarity Sensitive) | 16 AWG (1.31 mm2) to 26 AWG (0.129 mm2)
Terminal Block Torque Rating 0.5 Nm nominal
Sensor Type | Sensor Curve | Sensor Points Platinum RTD | PTC (Positive Temperature Coefficient) | One
Number Wires A/100-3W-HT-D-XX” and A/1K-3W-HT-D-xx”: Three (White / Two Red) Polarity Sensitive)
Sensor Output @ 0°C (32°F) A/100-3W-HT-D-xx”: 100 Ohms nominal | A/1K-3W-HT-D-xx”: 1000 Ohms nominal
Sensor Tolerance | Accuracy2 +/- 0.12% Class B | Class B Tolerance Formula: +/- ºC = (0.30ºC + (0.005 * |t|))
Din Standard | Temperature Coefficient DIN EN 60751 (IEC 751) | 3850 ppm / ºC
Sensor Stability < 0.04 % at 1000 hours at 400ºC
Self-Heating | Maximum Operating Current 100 Ohm RTD: 7 mW/ºC (Still Air) | 5 mA | 1K Ohm RTD: 4 mW/°C (Still Air) | 3 mA
Sensor Operating Temperature Range -40 to 395ºC (-40 to 743ºF)
Enclosure Specificaitons (Operating Temperature Range, Material, Flammability, NEMA/IP Rating) “-GD” Enclosure: -40 to 199ºC (-40 to 390ºF); Galvanized Steel; NEMA 1 (IP10)
“-BB” Enclosure: Aluminum, -40 to 121ºC (-40 to 250ºF), Plenum Rated, NEMA 3R
Storage Temperature Range -40 to 85ºC (-40 to 185ºF)
Operating Humidity Range 10 to 90% RH, non-condensing
Probe Material | Probe Diameter 316 Stainless Steel | 0.250” (6.35mm)
Compression Fitting Material 316 Stainless Steel
Lead Length | Conductor Size 8’ (2.44 m) | 24 AWG (0.20 mm2)
Lead Wire Insulation | Conductor Material Fiberglass Braided Insulation with Mica Tape | 27% Nickel Plated Copper
Product Dimensions | Product Weight See table on back of Product Data sheet
Agency Approvals RoHS2, WEEE

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