Aalborg PWE Digital - Manual (Page 6)

1. UNPACKING THE PWE
1.1 Inspect Package for External Damage
Your PWE 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 PWE meter
Open the carton carefully from the top and inspect for any sign of concealed ship-
ping damage. In addition to contacting the shipping carrier please forward a copy
of any damage report to your distributor or Aalborg
® directly. When unpacking the
instrument please make sure that you have all the items indicated on the Packing
List. Please report any shortages promptly.
1.3 Returning Merchandise for Repair
Please contact the customer service representative of your distributor or Aalborg ®
if you purchased your PWE Meter directly, and request a Return Authorization
Number (RAN). Equipment returned without an RAN will not be accepted.
Aalborg
® reserves the right to charge a fee to the customer for equipment returned
under warranty claims if the instruments are tested to be free from warranted
defects. Shipping charges are borne by the customer. Items returned "collect" will
not be accepted! It is mandatory that any equipment returned for servicing be
purged and neutralized of any dangerous contents including but not limited to
toxic, bacterially infectious, corrosive or radioactive substances. No work shall be
performed on a returned product unless the customer submits a fully executed,
signed SAFETY CERTIFICATE. Please request form from the Service Manager.
2. PWE FLOW METERS TECHNICAL DATA
2.1 Principles of Operation
PWE liquid flow meters consist of a meter body that is installed in-line in a con-
duit system. Inside, between the inlet and the outlet connections is a rotary wheel
with permanent magnets embedded at 180 degrees in paddles.
Fluid flowing through the meter causes the paddle to spin. A magnetic sensor
picks up the frequency of pulses, and the readings are proportional to the liquid
flow taking place. The number of pulses per unit time interval and a K-factor (puls-
es/unit of flow) facilitate determining the volumetric rate of flow through the
meter.
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