Technical Data Sheet No. TD-09-117M (temp) Date of Issue: July 2009 OPERATING MANUAL PADDLE WHEEL METER aalborg 20 CORPORATE DRIVE ORANGEBURG, NY 10962 PHONE: 845.770.3000 FAX: 845.770.3010 e-mail: info@aalborg.com toll free in usa or canada: 1.800.866.3837 web site: www.aalborg.
CAUTION: This product is not intended to be used in life support applications!
TABLE OF CONTENTS 1. UNPACKING THE PADDLE WHEEL METER...................................1 1.1 Inspect Package for External Damage.............................................. 1 1.2 Unpack the Paddle Wheel Meter....................................................... 1 1.3 Returning Merchandise for Repair.....................................................1 2. PWM PADDLE WHEEL METERS................................................1 2.1 Principles of Operation.................................................
1. UNPACKING THE PWM 1.1 Inspect Package for External Damage Your Paddle Wheel Meter was carefully packed in a sturdy cardboard carton, with antistatic cushioning materials to withstand shipping shock. Upon receipt, inspect the package for possible external damage. In case of external damage to the package contact the shipping company immediately. 1.2 Unpack the Paddle Wheel Meter Open the carton carefully from the top and inspect for any sign of concealed shipping damage.
3. SPECIFICATIONS WETTED MATERIALS POLYPROPYLENE UNITS PVDF UNITS BODY Polypropylene PVDF LID Acrylic PVDF PADDLE WHEEL PVDF PVDF SHAFT Nickel Tungsten Carbide Zirconia Ceramic BEARINGS Sapphire Jewels Sapphire Jewels O-RINGS EPDM PTFE PLATINUM RTD 316 stainless steel casing 316 stainless steel casing SPECIFICATIONS ACCURACY ±1% FS. MAX TEMPERATURE 60 °C (140 °F). MAX PRESSURE 10 bar (150 psi). POWER 5 to 24 Vdc @ 2 mA. OUTPUT SIGNAL NPN open collector (load 30 mA max).
4. PARTS PARTS LIST PARTS PWMP MATERIALS PWMT MATERIALS 1 LOWER BLOCK POLYPROPYLENE PVDF 2 JEWEL BEARING (2 required) 3 PADDLE WHEEL PVDF & NICKEL TUNGSTEN CARBIDE PVDF & ZIRCONIA CERAMIC 4 LID ACRYLIC PVDF 5 SENSOR NOT WETTED PART 6 SCREW 8-32 (4 required) STAINLESS STEEL 7 O-RING 8 RTD (Not Shown) PVDF SAPPHIRE EPDM PTFE STAINLESS STEEL CASING 5 1 2 3 7 2 4 6 NOTE: Platinum RTD is not shown.
5. INSTALLATION PWM Paddle Wheel Meters are available with or without optional RTD (Resistance Thermometer Device) probes. NPT female inlet and outlet port sizes are shown in the table in the flow rate on the preceding page. It is necessary to include an upstream straight pipe of at least five times the inside diameter of the line. Installation horizontally or vertically is acceptable. The magnetic sensor requires 5-24 VDC power (30 mA max. load).
WARRANTY Aalborg7 Paddle Wheels are warranted against parts and workmanship for a period of one year from the date of purchase. It is assumed that equipment selected by the customer is constructed of materials compatible with gases used. Proper selection is the responsibility of the customer.
