ACI A/1K-2W-I-2.5"-EXPL
SKU: CS6288814MPN: A/1K-2W-I-2.5"-EXPLAlternate Part #: 142774
1,000 Ohm (Two Wires) RTD, Hazardous, Immersion, Welded Well, 2.5”

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Product Details
1,000 Ohm (Two Wires) RTD, Hazardous, Immersion, Welded Well, 2.5”
Product Configuration
| Length | 2.5” |
|---|---|
| Sensor | 1K-2W (1,000 Ω, 2 wires) |
| Configuration | Immersion |
Product Family Specifications
| Stability | +/- 0.03% after 1000 Hours @ 300ºC (572ºF) |
|---|---|
| Sensor Type | Platinum RTD |
| Number Wires | A/100-2W-EXPL and A/1K-2W-EXPL: Two (Non-Polarity Sensitive) A/100-3W-EXPL and A/1K-3W-EXPL: Three (Polarity Sensitive) |
| Sensor Curve | PTC (Positive Temperature Coefficient) |
| Probe Diameter | 0.250” (6.35mm) |
| Probe Material | 304 Stainless Steel |
| Product Weight | Room: 1.8 lbs Duct: 4.4 lbs Immersion: 4.75 lbs |
| Sensor Threads | ½” NPT (National Pipe Tapered) Thread |
| Sensor Accuracy | +/- 0.06% Class A | (Tolerance Formula: +/- ºC \= (0.15ºC + (0.002 * |t|)) where |t| is the absolute value of Temperature above or below 0ºC in ºC) -40ºC (-40ºF): +/- 0.23ºC (+/- 0.414ºF) 0ºC (32ºF): +/- 0.15ºC (+/- 0.27ºF) 200ºC (392ºF) \= +/- 0.55ºC (+/- 1.00ºF) |
| Agency Approvals | CE, RoHS2, WEEE |
| Conductor Material | Silver Plated Copper |
| Number Sensing Points | One |
| Operating Humidity Range | 10 to 95% RH, non-condensing |
| Enclosure Hubs | Hub Size | Two | ½” NPT Female Hubs |
| Storage Temperature Range | -40 to 85ºC (-40 to 185ºF) |
| Operating Temperature Range | -40 to 200ºC (-40 to 392ºF) |
| Enclosure UL | CSA Standards | UL 1203 | CSA C22.2 No. 30 |
| Lead Length | Conductor Size | 14” (35.6 cm) or 24” (61 cm) | 22 AWG (0.65mm) |
| Sensor Output @ 0ºC (32ºF) | A/100-xW-EXPL Series: 100 Ohms nominal A/1K-xW-EXPL Series: 1000 Ohms nominal |
| Response Time (63% Step Change) | 8 Seconds nominal |
| Enclosure Explosion Proof Rating | CL. I, Div. 1 \& 2, Groups A, B, C, D |
| Lead Wire Insulation | Wire Rating | Etched Teflon (PTFE) Colored Leads | Mil Spec 16878/4 Type E) |
| Thermowell Material | Bore Diameter | 304 Stainless Steel | 0.260” |
| Enclosure Dust-Ignition Proof Rating | CL. II, Div. 1, Groups E, F, G |
| Din Standard | Temperature Coeffcient | DIN EN 60751 (IEC 751) | 3850 ppm / ºC |
| Self-Heating | Maximum Operating Current | 100 Ohm RTD: 7 mW/ºC (Still Air) | 5 mA 1K Ohm RTD: 4 mW/ºC (Still Air) | 3 mA |
| Enclosure Raintight | Wet Locations Ratings | CL. II, Div. 2, Groups F, G | CL. III |
| Thermowell Instrument Thread | Process Thread | ½” NPS (National Pipe Straight) Female Thread | ½” NPT (National Pipe Tapered) Male Thread |
| Enclosure Specifications (Material, Operating Temperature, NEMA Ratings) | “-D” Enclosure: Feraloy® Iron Alloy, -50 to 60ºC (-58 to 140ºF), NEMA 3, 4, 7ABCD, 9EFG “-I or -INW” Enclosure: Feraloy® Iron Alloy, -50 to 60ºC (-58 to 140ºF), NEMA 3, 4, 7ABCD, 9EFG “-R” Enclosure: Copper-Free Aluminum, -50 to 60ºC (-58 to 140ºF), NEMA 3, 4, 7ABCD, 9EFG |
Specifications
| SKU | CS6288814 |
|---|---|
| MPN | A/1K-2W-I-2.5"-EXPL |
| Alternate Part # | 142774 |



