ACI A/RH2-1K-2W-D
SKU: CS6286382MPN: A/RH2-1K-2W-DAlternate Part #: 122557
Relative Humidity, RH Outputs: 0-5, 0-10 VDC \& 4-20mA (Default), Duct, ± 2% Accuracy, 1,000 Ohm RTD (Two Wires), Euro Enclosure

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Product Details
Relative Humidity, RH Outputs: 0-5, 0-10 VDC \& 4-20mA (Default), Duct, ± 2% Accuracy, 1,000 Ohm RTD (Two Wires), Euro Enclosure
Product Configuration
| NIST | None |
|---|---|
| Length | 7.75” |
| Accuracy (Humidity) | +/-2% |
| Sensor For Combination | 1K-2W (1,000 Ω, 2 wires) |
Product Family Specifications
| Output Signals | 2-wire: 4 - 20 mA (Factory Default) 3-wire: 0-5 or 0-10 VDC and 4 - 20 mA (Field Selectable) |
|---|---|
| Product Weight | A/RHx-xx-xW-D Series: 1.22 lbs. (0.55 kg) A/RHx-xx-xW-D-4X Series: 0.50 lbs. (0.227 kg) A/RHx-xx-xW-D-BB Series: 0.90 lbs. (0.41 kg) |
| RH Sensor Type | Capacitive with Hydrophobic Filter |
| Supply Current | Voltage Output: 8 mA maximum (0.32 VA) Current Output: 24 mA maximum (0.83 VA) |
| Supply Voltage | 4-20 mA: 250 Ohm Load: 15 - 40 VDC / 18 - 28 VAC | 500 Ohm Load: 18 - 40 VDC / 18 - 28 VAC 0-5 VDC: 12 - 40 VDC / 18 - 28 VAC | 0-10 VDC: 18 - 40 VDC / 18 - 28 VAC |
| Agency Approvals | CE, RoHS2, WEEE |
| NIST Test Points | Default Test Points: 3 Points (20%, 50% \& 80%) 1% NIST Test Points: 5 Points within selected 20% Range (ie. 30%-50% are 30, 35, 40, 45 \& 50) |
| Insulation | Rating | Etched Teflon (PTFE) Colored Leads | Mil Spec 16878/4 Type E |
| RH Measurement Range | 0-100% |
| Output Load Resistance | 4-20 mA: 700 Ohms maximum 0-5 VDC or 0-10 VDC: 4K Ohms Minimum |
| Platinum RTD Stability | +/-0.03% after 1000 Hours @ 572°F (300°C) |
| Connections | Wire Size | Screw Terminal Blocks (Polarity Sensitive) | 16 (1.31 mm²) to 26 AWG (0.129 mm²) |
| Temperature Coefficient | 3850 ppm/ °C |
| Accuracy @ 77°F (25°C) | Model Dependent: +/- 1% over 20% RH Range between 20 to 90% | +/- 2%, or 3% from 10 to 95% |
| Operating Humidity Range | 0 to 95% RH, non-condensing (Conformally Coated PCB’s) |
| Platinum RTD Din Standard | DIN EN 60751 (IEC 751) |
| Storage Temperature Range | -40 to 149°F (-40 to 65°C) |
| Operating Temperature Range | -40 to 140°F (-40 to 60°C) |
| Lead Length | Conductor Size | 14” (35.6 cm) | 22 AWG (0.65 mm) |
| Platinum RTD Tolerance Class | +/-0.06% Class A | Tolerance Formula: +/-°C \= (0.15°C + (0.002 * |t|) |
| Terminal Block Torque Rating | 4.43 to 5.31 lb-in (0.5 to 0.6 Nm) |
| Response Time (63% Step Change) | 20 Seconds Typical |
| RH Transmitter Stabilization Time | 30 Minutes (Recommended time before doing accuracy verification) |
| Platinum RTD Output @ 32°F (0°C) | RHx-100-xW-D Series: 100 Ohms nominal RHx-1K-xW-D Series: 1000 Ohms nominal |
| Sensing Tube Material | Filter Material | “EH” Enclosure: 304 Series Stainless Steel | 304 Series Stainless Steel “-4X” Enclosure: Schedule 40 PVC (White) | Slotted PVC without filter “-BB” Enclosure: Schedule 40 PVC (White) | Slotted PVC without filter |
| RH Stability | Repeatability | Sensitivity | Less than 2% drift / 5 years | 0.5% RH | 0.1% RH |
| Sensing Tube Dimensions (Length x Diameter) | “-EH” Models with Sintered Filters: 7.75” (196.85 mm) x 0.75” (19.05 mm) “-4X” Models: 7.20” (182.88 mm) x 0.840” (21.34 mm) “-BB” Enclosure: 7.20” (182.88 mm) x 0.840” (21.34 mm) |
| Platinum RTD (PTC) | Number Wires (Wire Colors) | RHx-100-2W Series: (Brown/Brown) \& RHx-1K-2W Series: (Black/Black) RHx-100-3W Series: (Brown/Brown/Black) \& RHx-1K-3W Series: (Black/Black/White) |
| Enclosure Specifications (Material, Flammability, Temperature, NEMA/IP Rating) | “-EH” Enclosure: ABS Plastic | UL94-V0 | -40 to 140°F (-40 to 60°C) “-4X” Enclosure: Polystyrene Plastic | UL94-V2 | -40 to 158°F (-40 to 70°C) | NEMA 4X (IP 66) “-BB” Enclosure: Aluminum | -40 to 140°F (-40 to 60°C) |
Specifications
| SKU | CS6286382 |
|---|---|
| MPN | A/RH2-1K-2W-D |
| Alternate Part # | 122557 |


