ACI A/RH2-D-4X : Duct Relative Humidity Sensor, 2% Accuracy, RH Outputs: 0-5, 0-10 VDC & 4-20mA (Default), NEMA 4X Duct Enclosure, Made in USA
Maintaining optimal humidity levels is crucial for efficient operation, occupant comfort, and equipment protection in various applications. The ACI A/RH2-D-4X Duct Sensor is specifically designed to accurately monitor and control humidity in ductwork systems, offering a reliable and versatile solution for diverse needs.
- Highly accurate and reliable: This sensor boasts ±1% accuracy and utilizes a durable, multi-layer sensing element for resistance to dust, dirt, and common environmental chemicals.
- Flexible and easy to use: The A/RH2-D-4X features selectable output signals, AC/DC power compatibility, and built-in self-test functionality. Its weatherproof enclosure and conformal coated circuit boards ensure reliable operation in harsh environments.
- Wide range of applications: This versatile sensor is suitable for humidification/dehumidification, supply/discharge/return air monitoring, economizers, clean rooms, data centers, process control, and various building types like schools, hospitals, and offices.
Specifications
| RH Supply Voltage (Reverse Polarity Protected): |
4-20 mA: 250 Ohm Load: 15 - 40 VDC / 18 - 28 VAC | 500 Ohm Load: 18 - 40 VDC / 18 - 28 VAC |
| RH Output Signal: | 2-wire: 4 - 20 mA (Factory Default) | 3-wire: 0-5 or 0-10 VDC and 4 - 20 mA (Field Selectable) |
| RH Measurement Range: | 0-100% |
| Operating RH Range: | 0 to 95% RH, non-condensing |
| RH Stability | Repeatability | Sensitivity: | Less than 2% drift / 5 years | 0.5% RH | 0.1% RH |
Datasheets
 |
ACI RH Duct Relative Humidity Data Sheet |
|
ACI Duct Relative Humidity Installation |
- Sensor Type:
- Duct
- Humidity Element:
- 2%
- Output Signal:
- 4-20mA, 0-5 VDC, or 0-10 VDC
- Temperature Element:
- None
- CO2 Element:
- None
- Display:
- No Display
- VOC Element:
- None
- Probe Length:
- 8
- Enclosure:
- NEMA 4X Enclosure
- Supported Protocols:
- None
