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Ideal for non-invasive pipe surface monitoring, this strap-on pipe temperature sensor clamps a 1.5" (3.81 cm) square copper plate to the pipe wall. In addition, a 1000 Ω two-wire platinum RTD reads through the plate on 1-1/4 to 4" (32 to 100 mm) pipe, wired out of a plenum-rated ABS plastic enclosure. It suits retrofit chilled water and hydronic line monitoring.
Ideal for non-invasive pipe surface monitoring, this strap-on pipe temperature sensor clamps a 1.5" (3.81 cm) square copper plate to the pipe wall. In addition, a 1000 Ω two-wire platinum RTD reads through the plate on 1-1/4 to 4" (32 to 100 mm) pipe, wired out of a plenum-rated ABS plastic enclosure. It suits retrofit chilled water and hydronic line monitoring.
The ACI Platinum Strap-On Series features a 1.5" square copper plate with the sensor encapsulated to the back side of the copper plate to improve the thermal conductivity between the pipe and sensor. Each sensor has Etched Teflon colored lead wires to differentiate the different sensor types. The three-wire “-3W” option should be ordered when using with a 3-Wire temperature transmitter or sensor configuration on your building management system or PLC (Programmable Logic Controller). The purpose of the 3rd wire is to compensate for external lead wire resistance that will affect the accuracy of your sensor output.
ACI recommends the use of 18 AWG lead wires to reduce the external lead wire resistance when using a Platinum RTD sensor. Sensors in this series are manufactured using ACI’s proven double encapsulation process to eliminate the effects of moisture on the sensor as well as to improve thermal response times with our high quality, thermally conductive epoxy.
Strap-On sensors can be used to monitor pipe sizes from 1-1/4" to 10" in diameter. ACI recommends to clean the pipe before applying thermal grease and installing the sensor before finally insulating the sensor from the effects of the ambient air. Optional Weather Proof enclosures and NIST Certificates are available as referenced on the back of the Product Data Sheet.
Applications
| Sensor | Type: Platinum RTD Curve: PTC (Positive Temperature Coefficient) Sensing points: One Number of wires: Two (non-polarity sensitive) Output at 32°F (0°C): 1000 Ω nominal Accuracy: ±0.06% Class A (Tolerance formula: ±°C = (0.15°C + (0.002 * |t|)) where |t| is the absolute value of Temperature above or below 0°C in°C) -40°F (-40°C): ±0.23°C (±0.41°F) 32°F (0°C): ±0.15°C (±0.27°F) 200°F (93°C): ±0.34°C (±0.61°F) |
| Configuration | Strap-on |
| Performance | DIN standard: DIN EN 60751 (IEC 751) Temperature coefficient: 3850 ppm/°C Stability: ±0.03% after 1000 hours at 572°F (300°C) Response time (63% step change): 30 seconds nominal Self-heating: 4 mW/°C (Still Air) Maximum operating current: 3 mA |
| Foam Pad | Material: Neoprene/EPDM/SBR polymer Flammability rating: UL94-HF1; MIL-R-6130C; FMVSS-302 |
| Enclosure | Material: ABS plastic Operating temperature range: -22 to 185°F (-30 to 85°C) Flammability rating: UL94-HB Rating: Plenum rated |
| Lead Wire | Length: 14" (35.6 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: MIL-W-16878/4 (Type E) Conductor material: Silver plated copper |
| Acceptable Pipe Size | 1-1/4" (32 mm) to 4" (100 mm) |
| Environmental Conditions | Storage temperature range: -40 to 185°F (-40 to 85°C) Operating humidity range: 10 to 95% RH, non-condensing |
| Agency Approvals | CE, RoHS2, WEEE |
| Weight | 0.41 lbs (0.19 kg) |
| Sensor | Type: Platinum RTD Curve: PTC (Positive Temperature Coefficient) Sensing points: One Number of wires: Two (non-polarity sensitive) Output at 32°F (0°C): 1000 Ω nominal Accuracy: ±0.06% Class A (Tolerance formula: ±°C = (0.15°C + (0.002 * |t|)) where |t| is the absolute value of Temperature above or below 0°C in°C) -40°F (-40°C): ±0.23°C (±0.41°F) 32°F (0°C): ±0.15°C (±0.27°F) 200°F (93°C): ±0.34°C (±0.61°F) |
| Configuration | Strap-on |
| Performance | DIN standard: DIN EN 60751 (IEC 751) Temperature coefficient: 3850 ppm/°C Stability: ±0.03% after 1000 hours at 572°F (300°C) Response time (63% step change): 30 seconds nominal Self-heating: 4 mW/°C (Still Air) Maximum operating current: 3 mA |
| Foam Pad | Material: Neoprene/EPDM/SBR polymer Flammability rating: UL94-HF1; MIL-R-6130C; FMVSS-302 |
| Enclosure | Material: ABS plastic Operating temperature range: -22 to 185°F (-30 to 85°C) Flammability rating: UL94-HB Rating: Plenum rated |
| Lead Wire | Length: 14" (35.6 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: MIL-W-16878/4 (Type E) Conductor material: Silver plated copper |
| Acceptable Pipe Size | 1-1/4" (32 mm) to 4" (100 mm) |
| Environmental Conditions | Storage temperature range: -40 to 185°F (-40 to 85°C) Operating humidity range: 10 to 95% RH, non-condensing |
| Agency Approvals | CE, RoHS2, WEEE |
| Weight | 0.41 lbs (0.19 kg) |
