Note:  An alarm function is incorporated into this STP series. Alarm and cautionary messages are 
displayed  on  the  LCD  of  the  STP  control  unit.  Note  that  the  words  "WARNING"  and 
"CAUTION" displayed on the LCD indicate the need for overhaul of the pump or precautions 
during  the  operation.  They  do  not  have  the  same  meaning  as  the  much  more  serious 
symbols for "WARNING" and "CAUTION" used in the instruction manual. 
 
1.2  Electromagnetic compatibility 
 This product is a Class A product according to EN61326-1 (Group 1, Class A product according 
to EN55011) and intended to be used in an industrial electromagnetic environment defined by 
EN61326-1. 
This means that this product does not generate and/or use intentionally radio-frequency energy, 
in the form of electromagnetic radiation, inductive and/or capacitive coupling, for the treatment 
of material or inspection / analysis purpose and that it is suitable for use in all establishments 
other than domestic and those directly connected to a low voltage power supply network which 
supplies buildings used for domestic purposes. 
 This product may have potential difficulties in ensuring electromagnetic compatibility in other 
than industrial environments, due to conducted as well as radiated disturbances. 
 This product must not be used in residential areas because it may cause interference if used in 
residential areas. 
 
1.3  Limited warranty 
This WARRANTY applies to the customer to whom Edwards has delivered this product. 
The warranty period is stated in the Edwards Terms and Condition of Supply of Goods and Services, 
or during the period specified in the agreement made by and between the customer and Edwards. 
 
1.3.1  Item warranted 
1.  This warranty applies only to the product delivered from Edwards to the customer. 
2.  If any defect is found during this period, Edwards will, at its option, repair or recondition the 
product free of charge. The costs for repair or replacement of the product after the warranty 
period has passed will be at your own charge.