Herunterladen Diese Seite drucken

Werbung

Verfügbare Sprachen

Verfügbare Sprachen

SCD-P1xxx | -P2xxx Duct sensor for air quality
Product Bulletin
EN
DE
Carbon dioxide gas (CO2) is a component of the earth's
atmosphere. Although carbon dioxide is invisible and odorless, an
increased CO2 content in the indoor air leads to fatigue and
reduced concentration for humans.
In rooms with high occupancy, such as conference rooms and
theatres, the negative effects on humans becomes all the more
evident.
The SCD-P series duct mount transmitters are designed for the
measurement of Carbon Dioxide (CO2) in Heating Ventilating and
Air Conditioning applications where Demand Control Ventilation
(DCV), fresh air and indoor Air Quality (IAQ), and rooftop air
handling economizer control systems are often required.
The SCD-Pxxxx sensors incorporate the a dual wavelength NDIR
CO2 sensor, which compensates for ageing effects, is highly
insensitive to pollution and offers outstanding long term stability.
The SCD-Pxxxx Transmitter is available with CO2 output 0-10 V
or 2x 0..10 V (CO2 + temperature), optional with passive
temperature sensor.
Features
Support demand control ventilation
Offer potential for 10 to 70% energy savings
Single beam dual wavelength NDIR CO2 sensor
Highly insensitive to pollution and outstanding long term stability
Easy mounting and service
No expertise required, the hinged lid housing, the removable cable entry and the removable plug-in terminal
reduce installation time and costs
High protection grade
The IP65 enclosure make it suitable for several environments
Product overview
This transmitter uses NDIR CO2 sensing technology operates in accordance with the single-beam,
dualwavelength method. The temperature calibrated sensor has unique reference measurement capabilities,
offering excellent stability over both time and temperature.
It requires a 15..35 VDC or 19..29 VAC power source and generates an output signal proportional to the CO2
level detected. SCD-Pxxxx can operate in support of Demand Control Ventilation (DCV), with fresh air and Indoor
Air Quality (IAQ) systems, with rooftop air handling Economizer controls systems, in Standalone applications or
as part of any integrated Building Automation strategy. Using the CO2 transmitter results in considerable savings
in installation, operation, and maintenance costs with no recalibration expenses. Johnson Controls CO2
transmitters, when used with BAS/Economizer controllers (featuring DCV strategies), can generate energy
savings ranging up to:
• 20 to 40% in office buildings
• 20 to 60% in restaurants/light retail facilities
• 10 to 70% in educational/business settings
SCD-P1xxx | -P2xxx Differential Pressure Transmitter
1
Issued 05.10.2020 | Rev.1

Werbung

loading

Inhaltszusammenfassung für Johnson Controls SCD-P1 Serie

  • Seite 1 Building Automation strategy. Using the CO2 transmitter results in considerable savings in installation, operation, and maintenance costs with no recalibration expenses. Johnson Controls CO2 transmitters, when used with BAS/Economizer controllers (featuring DCV strategies), can generate energy savings ranging up to: •...
  • Seite 2 -30..+70 °C, max. 85% rH, short term condensation EU conformity Johnson Controls, Inc., declares that these products are in compliance with the essential requirements and other relevant provisions of the EMC Directive and Rohs Directive. SCD-P1xxx | -P2xxx Differential Pressure Transmitter...
  • Seite 3 Installation R-T Table: nominal values for passive sensors The installation of electrical wiring must conform to local codes and should be carried out by authorized personnel only. Users should ensure that all Johnson °C PT1000 (Ω) °C NTC10 kΩ Controls products are used safely and without risk to health or property. 240799.17 The SCD-Px000 CO2 sensors are intended to provide input to equipment 175846.19...
  • Seite 4 Wiring Before connecting or disconnecting any wires, ensure that all power supplies have been switched off and all wires are potential-free to prevent equipment damage and avoid electrical shock. Terminations are made on the dismountable terminal blocks in the base of the module, which accept up to 2.5 mm² wires. Follow the wiring diagrams shown in the figure below.
  • Seite 5 Gebäudeautomatisierungsstrategie eingesetzt werden. Die Verwendung des CO2-Messumformers führt zu erheblichen Einsparungen bei Installations-, Betriebs- und Wartungskosten, ohne dass Kosten für eine Neukalibrierung anfallen. Die CO2-Messumformer von Johnson Controls können in Verbindung mit BAS/Economizer-Reglern (mit DCV-Strategien) Energieeinsparungen von bis zu 70% erreichen.
  • Seite 6 0..+50 °C, max. 85% rH, nicht dauerhaft kondensierend Lagerbedingung -30..+70 °C, max. 85% rH, nicht dauerhaft kondensierend EU Konformität Johnson Controls, Inc. erklärt, dass diese Produkte mit den wesentlichen Anforderungen und anderen relevanten Bestimmungen der EMV-Richtlinie und der Rohs-Richtlinie übereinstimmen. SCD-P1xxx | -P2xxx Differenzdruck-Messumformer...
  • Seite 7 Personal durchgeführt werden. °C PT1000 (Ω) °C NTC10 kΩ Benutzer sollten sicherstellen, dass alle Produkte von Johnson Controls sicher 240799.17 und ohne Gefahr für Gesundheit und Eigentum verwendet werden. 175846.19 Die SCD-P CO2 Sensoren sind dafür vorgesehen, unter normalen 129735.04...
  • Seite 8 Anschluss Zum Schutz vor elektrischen Schlag und um Schäden am Gerät zu vermeiden, Stellen Sie sicher, dass alle Stromzweige (Netz) und Niederspannungs-(Steuer)-Stromkreise spannungslos und gesperrt sind, bevor der elektrische Anschluss zum Gerät hergestellt wird. Die Anschlüsse werden an der abnehmbaren Steckklemme vorgenommen, die bis zu 2,5 mm2 Drähte aufnehmen kann.
  • Seite 9 European Single Point of Contact: JOHNSON CONTROLS WESTENDHOF 3 45143 ESSEN GERMANY www.johnsoncontrols.com www.johnsoncontrols.com/locations Metasys® and Johnson Controls® are registered trademarks of Johnson Controls. All other marks herein are the marks of their respective owners. © 2020 Johnson Controls. SCD-P1xxx | -P2xxx Differenzdruck-Messumformer...