W2940305    Rev 07    8/2019    Dover Fueling Solutions  5 
1 Introduction 
1.1 Dispensers Covered 
This manual describes the installation and operation of Wayne Select
TM
 S1 Compact 
Electronic Dispensers.  Select S1 Compact Electronic dispensers are designated by the 
3/G7100 model number series.  Model descriptions are shown in Section 1.2. The model 
number suffix designations are defined in Section 1.3.  Technical information can be found in 
Section 1.4. 
 
Select S1 Compact Electronic dispensers use the iGEM
TM
 computer powered by DFS to 
control the iMeter
TM 
fuel meter powered by DFS and Intelligent Pulser (WIP).  There is one 
iGEM computer and one iMeter fuel meter module in each dispenser.  There is one WIP 
pulser for each iMeter fuel meter. 
 
The iGEM computer uses software that is uploaded by a laptop.  Computer function settings 
necessary for dispenser startup are included in this manual. If additional information on 
function settings and statistics is required, refer to the iGEM Computer Service manual, part 
number 920525.  Note:  When making updates to the iGEM computer using a laptop, ensure 
that it is done in an unclassified location. 
 
Select S1 Compact Electronic dispensers may be installed and operated as a stand-alone 
unit, may be controlled through an internal control system, or may be controlled by a third 
party fuel control system. This manual provides installation and operation information for 
these dispensers operating as stand-alone units and with an internal control system. General 
information is provided for connecting to third party fuel control systems. It is also necessary 
to consult the applicable third party fuel control system documentation for installation and 
operation information and any necessary safeguards and warnings. 
 
Trouble with the installation of this product should be referred to your DFS ASO.  An ASO 
with a technician number can receive assistance by calling the DFS Support Center at:  
1-800-926-3737 
 
Customers, Installers or Distributors who are not an ASO, needing help with the operation or 
installation of this product, should contact the DFS Support Center at:  
1-800-289-2963 OR support.austin@doverfs.com 
 
 
NOTE: Terminology Used in This Manual 
  Dispenser(s):  Generic term used to refer to any model in the Select dispenser 
series. 
  Remote Dispenser(s):   Models utilizing a submersible pump in the tank to provide fuel 
to the dispenser.  
  Enhanced Capacity:  Remote dispenser models with one iMeter fuel meter measuring 
chamber per hose. 
Super-High Capacity (SHC):  Remote dispenser models with two iMeter fuel meter measuring 
chambers per hose for increased flow performance.