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RH-Combo-Duct-Platinum-RTD
Umidità relativa condotto con sensore RTD in platino
- Umidificazione
- Deumidificazione
- Aria di mandata / espulsione / ritorno
- Camere bianche
- Data center
- Controllo di processo
- Scuole
- Ospedali
- Edifici per uffici
RH-Combo-Duct-Platinum-RTD
Da
Panoramica del Prodotto
- Applicazioni Aria e HVAC, Edilizia e Manutenzione, Medicina, Automazione e controllo dei processi
- Collegamento elettrico Terminale a vite
- Filtro Filtro idrofobo
- Isolamento Teflon inciso (PTFE) Fili colorati
- Lunghezza cavo 14 in
- Corrente, max 8 mA
- Tipo di misurazione Umidità, temperatura
- Orientamento di montaggio Supporto per condotto
- Temperatura di esercizio, max 60 °C
- Temperatura di esercizio minima -40 °C
- Dettagli sull'uscita 0-5 VCC: 12 - 40 VCC / 18 - 28 VCA
- Diametro della sonda 0.75 in
- Lunghezza della sonda 7.76 in
- Umidità relativa 10 al 95%
- Tipo di sensore di umidità relativa Capacitivo con filtro idrofobico
- Ripetibilit 0,5% UR, ± 0,05°C
- Tempo di risposta 20 secondi tipici
- Sensibilità 0,1% UR
- ID serie RH-Combo-Duct-Platinum-RTD
- Stabilità Stabilità RH: deriva inferiore al 2% / 5 anni, stabilità RTD in platino: +/-0,03% dopo 1000 ore a 572°F (300°C)
- Temperatura di stoccaggio, max 65 °C
- Temperatura di stoccaggio, min. -40 °C
- Tipo di alimentazione CC
- Tensione di alimentazione 24 Vcc
- Coefficiente di temperatura 3850 ppm/ °C
- Coppia di serraggio 4,43 a 5,31 lb-in (0,5 a 0,6 Nm)
- Calibro del cavo Da 26 a 16 AWG
Supported Applications
The ACI Relative Humidity Duct with Platinum RTD Sensor series is a relative humidity transmitter designed for commercial heating and cooling building management systems. The unit features a thermoset polymer capacitive sensing element with a factory-fitted hydrophobic filter, providing resistance in applications where dust, dirt, oils, and common environmental chemicals are present.
Operating Conditions & Performance
The series measures relative humidity from 0 to 100% RH. Accuracy is specified as +/- 1% over a 20% RH range between 20 to 90%, or +/- 2% and +/- 3% from 10 to 95%. The operating temperature range for the process is -40 to 140 °F (-40 to 60 °C), with an ambient storage capability of -40 to 149 °F (-40 to 65 °C). Stability is rated at less than 2% drift over 5 years, and the typical response time (T63) is 20 seconds. The transmitter requires a stabilization time of 30 minutes before accuracy verification.
Configuration Options
The series supports multiple enclosure configurations, sensor elements, output signals, and calibration options to accommodate specific installation requirements.
- Housings: Euro style (-EH) with ABS Plastic (UL94-V0), NEMA 4X (-4X) with Polystyrene Plastic (UL94-V2), or Aluminum Plenum Rated (-BB, NEMA 3R).
- Sensing Tube Materials: -EH enclosures utilize 304 Series Stainless Steel; -4X and -BB enclosures use Schedule 40 PVC (White) with slotted PVC without filter.
- Platinum RTD Options: Available as RHx-100-xW (100 Ohms nominal @ 32°F/0°C) or RHx-1K-xW-D (1000 Ohms nominal). Configurations include Two Wires (2W) and Three Wires (3W).
- Output Signals: Factory default is 4 to 20 mA. Field-selectable options via on-board DIP switches allow for 0-5 VDC or 0-10 VDC.
- Power Supply: Supports AC or DC sources depending on output and load: 4-20 mA (250 Ω Load) requires 15 - 40 VDC / 18 - 28 VAC; 0-5 VDC requires 12 - 40 VDC / 18 - 28 VAC.
- Calibration: Units include on-board DIP switches for field calibration (increment/decrement) and test points at 0%, 50%, and 100%. Three-point NIST Calibration Certificates are available as an option.
Key Product Differences
Variants differ primarily by enclosure type, sensor resistance value, wire count, and accuracy class. The -EH (Euro) configuration features a gasketed cover with 304 Series Stainless Steel sensing tubes and sintered filters for increased moisture resistance in high humidity environments. The -4X (NEMA 4X/IP66) and -BB (Aluminum/NEMA 3R) configurations utilize Schedule 40 PVC sensing tubes without a filter.
Accuracy classes are selectable as RH1 (+/- 1% over specified range), RH2 (+/- 2%), or RH3 (+/- 3%). Platinum RTD tolerance is Class A with +/- 0.06%, adhering to DIN EN 60751 (IEC 751) standards, and includes a temperature coefficient of 3850 ppm/°C.
PDF & Manuali
