Siemens QVM62.1 - Installation and Environmental Guidelines; Connections and Protection; Environmental and Storage Conditions; Materials, Colors, and Weight

QVM62.1 Air Velocity Sensor Technical Instructions
Document Number 155-006
October 26, 2006
Siemens Industry, Inc. Page 3
Connections
Mechanical Screw connection
Electric Screw terminal, maximum 2 × 18 AWG
Degree of protection
Degree of protection provided by enclosures
as per EN 60 529
Transducer IP 42
Sensor head IP 20
Degree of protection as per EN 60 730 III
Environmental conditions
Climatic conditions
Temperature 23°F to 113°F (-5°C to 45°C)
Humidity (non-condensing) <95% rh
Mechanical conditions Class 3M2
Chemical conditions Class 3C2
Storage (transducer and immersion stem)
Temperature 23°F to 113°F (-5°C to 45°C)
Humidity (non-condensing) <95% rh
Mechanical conditions Class 1M2
Transportation
Temperature 23°F to 113°F (-5°C to 45°C)
Humidity (non-condensing) <95% rh
Mechanical conditions Class 2M2
Materials and colors
Housing bottom Polycarbonate, RAL 7001 (silver-gray)
Housing cover Polycarbonate, RAL 7035 (light gray)
Sensor pipes Polycarbonate, RAL 7001 (silver-gray)
Sensor head, extension, enc Polycarbonate, RAL 7035 (light gray)
Connecting flange Polycarbonate, RAL 7001 (silver gray)
Sensor Silicone-free
Weight
With packaging 12 oz (0.352 kg)
Engineering Notes
Place the sensor in a location where the airflow is quiet. Do not place it close to
dampers, registers or duct direction changes.
Figure 2. Sensor Placement.
Use a transformer with safety extra-low voltage (SELV) and separate winding for 100%
ON-time.
Observe all local safety rules and regulations pertaining to sizing and protecting
transformers.
Note the permissible line length to the controller.