Dwyer GFM - Manual (Page 5)

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1. UNPACKING THE GFM MASS FLOW METER
1.1 Inspect Package for External Damage
Your GFM Mass Flow Meter was carefully packed in a sturdy cardboard carton,
with anti-static 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 Mass Flow 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 Dwyer 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 Dwyer if
you purchased your Mass Flow Meter directly, and request a Return
Authorization Number (RAN). Equipment returned without an RAN will not
be accepted. Dwyer reserves the right to charge a fee to the customer for equip-
ment returned under warranty claims if the instruments are tested to be free from
warrantied defects.
Shipping charges are borne by the customer. Meters returned “collect” will not be
accepted!
It is mandatory that any equipment returned for servicing be purged and neutral-
ized of any dangerous contents including but not limited to toxic, bacterially infec-
tious, 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. INSTALLATION
2.1 Primary Gas Connections
Please note that the GFM Mass Flow Meter will not operate with liquids. Only
clean gases are allowed to be introduced into the instrument. If gases are con-
taminated they must be filtered to prevent the introduction of impediments into the
sensor.