About RHP-3D11 DWYER Humidity Temperature Transmitter
RHP-3D11 DWYER Humidity Temperature Transmitter
The Series RHP Temperature and Humidity Transmitter combine the Voltage or current Humidity Transmitter output with a passive temperature thermistor or RTD output. The polymer capacitance humidity sensor is not affected by condensation, fog, high humidity, or contaminants. The humidity sensors are available with 2% or 3% accuracies. Duct mounted transmitters are available with an optional two-line alpha numeric LCD display. Application Note: For duct mount installations, the sintered filter option should be ordered for applications where the Humidity Transmitter is mounted in the supply air duct after the fan and cooling coils.
Availability: Item ships in about Ships in 4-6 weeks
Product Highlights
- Duct mount
- 3% RH/temperature transmitter
- 4-20 mA RH output
- 4-20 mA temperature output
- OTHER CONFIGURATIONS AVAILABLE
- PRODUCT SPECIFICATIONS
- Relative Humidity Range: 0 to 100% RH.
- Temperature Range: -40 to 140F (-40 to 60C).
- Accuracy, RH: RHP-2XXX 2% 10-90% RH @ 25C; RHP-3XXX 3% 20-80% RH @ 25C; RHP-5XXX 5% 20-80% RH @ 25C.
- Accuracy, Thermistor Temp Sensor: 0.2C @ 25C (0.36F @ 77F).
- Accuracy, RTD Temp Sensor: DIN Class B; 0.3C @ 0C (0.54F @ 32F).
- Hysteresis: 1%.
- Repeatability: 0.1% typical.
- Temperature Limits: -40 to 140F (-40 to 60C).
- Storage Temperature: -40 to 176F (-40 to 80C).
- Compensated Temperature Range: -4 to 140F (-20 to 60C).
- 4-20 mA Loop Powered Models: Power Requirements: 10-35 VDC. Output Signal: 4-20 mA.
- 0-5/10V Output Models: Power Requirements: 15-35 VDC or 15-29 VAC. Output Signal: 0-10V @ 5 mA max.
- Response Time: 15 seconds.
- Electrical Connections: Removable screw terminal block.
- Conduit Connection: Duct Mount: 1/2" NPS; OSA: 1/2" (22.3 mm).
- Drift: <1% RH/year.
- RH Sensor: Capacitance polymer.
- Temperature Sensor:
- Types 1, 2, 3: Solid state band gap;
- Curves A,B,C; Thermistor;
- Curves D,E; Platinum RTD DIN 385. (See R-T Lookup Table).
- Enclosure: Duct Mount: PBT; OSA: Polycarbonate.
- Enclosure Rating: NEMA 4X (IP65) for OSA mount only.
- Display: Duct Mount only, Optional 2-line alpha numeric, 8 characters/line.
- Display Resolution: RH: 0.1%; 0.1F (0.1C).
Precision in Duct Humidity and Temperature MonitoringSpecially engineered for duct installations, the RHP-3D11 ensures reliable measurements of humidity and temperature for water, steam, oil, and gas processes. The unit's accuracy and durability, combined with versatile LCD display options, make it a robust solution for monitoring air quality in challenging industrial and commercial environments.
Durable Construction and Versatile FinishesConstructed from high-grade rubber with finishing choices including matte, polished, and antique, the transmitter suits diverse aesthetic and operational needs. Its panel-mount design simplifies installation and maintenance within a variety of duct systems, ensuring both durability and ease of use.
Optimal Applications and UsageDesigned for use after fans and cooling coils in supply air ducts, the transmitter's robust features are further enhanced when paired with the optional sintered filter. This setup is ideal for maintaining precise environmental control in HVAC systems and industrial ventilation, providing accurate data and reliable performance.
FAQ's of RHP-3D11 DWYER Humidity Temperature Transmitter:
Q: How do I install the RHP-3D11 DWYER Humidity Temperature Transmitter in a duct system?
A: The RHP-3D11 is designed for panel mounting within a duct. For best results, install it downstream of fans and cooling coils. For such applications, ordering the transmitter with the optional sintered filter is recommended to protect the sensor from particulate contaminants.
Q: What is the accuracy of the RHP-3D11 transmitter and why is it important?
A: The RHP-3D11 (part of the RHP-3XXX series) provides 3% RH accuracy for the 20-80% relative humidity range at 25C. Accurate humidity measurement is crucial for maintaining the efficiency and comfort of HVAC systems as well as optimizing industrial processes.
Q: When should the optional sintered filter be used with this transmitter?
A: The optional sintered filter is recommended for duct-mount installations, especially when the transmitter is positioned after the fan and cooling coil. This filter helps prevent dust and debris from affecting the sensor's performance and longevity.
Q: Where can I view the humidity and temperature readings on the RHP-3D11?
A: If equipped with the optional two-line alphanumeric LCD, readings can be viewed directly on the panel in real time. The display provides clear, eight-character-per-line output for easy monitoring and quick reference.
Q: What materials are used in the construction of the RHP-3D11?
A: The transmitter features a robust rubber housing, a plastic dial, and a plastic pointer. It comes in a white finish and offers matte, polished, or antique surface options, ensuring durability and a sleek appearance.
Q: How does the RHP-3D11 benefit industrial and commercial applications?
A: This transmitter provides accurate, stable readings for core process conditions such as water, steam, oil, and gas. It supports efficient HVAC management, environmental control, and optimized resource use, contributing to energy savings and process reliability.
Q: What types of environments is the RHP-3D11 best suited for?
A: The RHP-3D11 excels in ducted environments requiring reliable humidity and temperature monitoring, such as HVAC supply air ducts in commercial buildings, industrial plants, or any facility focused on process and air quality control.