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Measuring -40 to 250°F (-40 to 121°C), this immersion temperature sensor uses a 1000 Ω nickel RTD element. In addition, its 1/4" (6.35 mm) probe inserts 4" (101.6 mm) through a welded 304 stainless steel thermowell and terminates in a galvanized steel NEMA 1 enclosure. It suits boiler, chiller and pump water temperature monitoring.
Measuring -40 to 250°F (-40 to 121°C), this immersion temperature sensor uses a 1000 Ω nickel RTD element. In addition, its 1/4" (6.35 mm) probe inserts 4" (101.6 mm) through a welded 304 stainless steel thermowell and terminates in a galvanized steel NEMA 1 enclosure. It suits boiler, chiller and pump water temperature monitoring.
The ACI Nickel Immersion Series features a 1/4" diameter stainless steel probe with two, 14" 22 AWG Etched Teflon colored lead wires to differentiate the many different sensor types. The sensors in this series are manufactured using ACI’s proven double encapsulation process to eliminate the effects of moisture upon the sensors and to increase the thermal response times using our high quality, thermally conductive epoxy.
The immersion sensors come standard with a welded thermowell “-I” version but can also be ordered without the thermowell “-INW” version. The “-INW” Version includes a standard 1/2" NPS (National Pipe Straight) process thread to be used with an optional machined thermowell or in an existing thermowell application.
This series can be ordered with optional NEMA rated weather proof enclosures and NIST Certificates as referenced on the back of the product data sheet. Please contact ACI for more information regarding this sensor or if you would like to discuss your application in further detail.
Applications
| Sensor | Type: Nickel RTD Curve: PTC (Positive Temperature Coefficient) Sensing points: One Number of wires: Two (non-polarity sensitive) Output at 70°F (21.1°C): 1000 Ω nominal Lead wire colors: Red/red Operating temperature range: -40 to 250°F (-40 to 121°C) Accuracy: -40°F (-40°C): ±2.73°F (±1.52°C) 32°F (0°C): ±0.72°F (±0.4°C) 70°F (21.1°C): ±0.34°F (±0.17°C) 130°F (54.4°C): ±1°F (±0.56°C) 250°F (121°C): ±2.25°F (±1.25°C) |
| Configuration | Immersion with Welded Thermowell |
| Performance | DIN standard: DIN 43760 Temperature coefficient (0 to 100°C): 6370 ppm/°C Stability: ±0.05% after 1000 hours at 302°F (150°C) Response time (63% step change): 8 seconds nominal Self-heating: 0.3°C/mW (Still Air) Maximum operating current: 5 mA |
| Probe Material | 304 stainless steel |
| Fitting | Material: Polyamide 66 (high performance nylon 66) Flammability rating: UL94-HB Thread size: 1/2" NPS (National Pipe Straight) male thread |
| Foam Pad | Material: Neoprene/EPDM/SBR polymer Flammability rating: UL94-HBF; FMVSS-302; MIL-R-6130C |
| Thermowell | Material: 304 stainless steel Type: Welded (sealed) two-part fabricated Bore diameter: 0.26" (6.6 mm) Instrument thread: 1/2" NPS (National Pipe Straight) female thread Process thread size: 1/2" NPT (National Pipe Tapered) male thread |
| Enclosure | Material: Galvanized steel Operating temperature range: -40 to 250°F (-40 to 121°C) Rating: NEMA 1 (IP10) |
| Lead Wire | Length: 14" (35.6 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: Mil Spec 16878/4 Type E Conductor material: Silver plated copper |
| 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 |
| Dimensions | Probe diameter: 0.25" (6.35 mm) Insertion length: 4" (101.6 mm) |
| Weight | 1 lbs (0.454 kg) |
| Sensor | Type: Nickel RTD Curve: PTC (Positive Temperature Coefficient) Sensing points: One Number of wires: Two (non-polarity sensitive) Output at 70°F (21.1°C): 1000 Ω nominal Lead wire colors: Red/red Operating temperature range: -40 to 250°F (-40 to 121°C) Accuracy: -40°F (-40°C): ±2.73°F (±1.52°C) 32°F (0°C): ±0.72°F (±0.4°C) 70°F (21.1°C): ±0.34°F (±0.17°C) 130°F (54.4°C): ±1°F (±0.56°C) 250°F (121°C): ±2.25°F (±1.25°C) |
| Configuration | Immersion with Welded Thermowell |
| Performance | DIN standard: DIN 43760 Temperature coefficient (0 to 100°C): 6370 ppm/°C Stability: ±0.05% after 1000 hours at 302°F (150°C) Response time (63% step change): 8 seconds nominal Self-heating: 0.3°C/mW (Still Air) Maximum operating current: 5 mA |
| Probe Material | 304 stainless steel |
| Fitting | Material: Polyamide 66 (high performance nylon 66) Flammability rating: UL94-HB Thread size: 1/2" NPS (National Pipe Straight) male thread |
| Foam Pad | Material: Neoprene/EPDM/SBR polymer Flammability rating: UL94-HBF; FMVSS-302; MIL-R-6130C |
| Thermowell | Material: 304 stainless steel Type: Welded (sealed) two-part fabricated Bore diameter: 0.26" (6.6 mm) Instrument thread: 1/2" NPS (National Pipe Straight) female thread Process thread size: 1/2" NPT (National Pipe Tapered) male thread |
| Enclosure | Material: Galvanized steel Operating temperature range: -40 to 250°F (-40 to 121°C) Rating: NEMA 1 (IP10) |
| Lead Wire | Length: 14" (35.6 cm) Conductor size: 22 AWG (0.65 mm) Insulation: Etched Teflon (PTFE) colored leads Wire rating: Mil Spec 16878/4 Type E Conductor material: Silver plated copper |
| 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 |
| Dimensions | Probe diameter: 0.25" (6.35 mm) Insertion length: 4" (101.6 mm) |
| Weight | 1 lbs (0.454 kg) |
