User Manual
   POS4000 
Document Number: POS4003  139  
Document Title:  POS4000/V2 Operations Manual 
Cause: 
POS Offset value is not set properly. 
Solution: 
Review Uni-CAM upgrade instruction for setting POS Offset value. This value is 
typically set to a value of X - up. Where X is the key for the first group - 1.(i.e. 
group key is key 6 and you enter in 5 up). 
Appendix K. Appendix X - Reconciliation of Sales when 
Connected to an EXTPOS Device 
Preface: 
EXT POS device: (External Point of Sale device) is defined as the computer 
system connecting to the EXT POS connection of the Carwash POS device 
(Enterlink, POS4000). This EXT POS device may be a Site controller (system 
controlling pumps) or Register. 
By connecting your carwash Point of Sale device (POS4000 or Enterlink) to an 
external POS device, you can significantly increase your car wash sales via 
Pump sales. In the implementation of this, nearly all of the devices that may 
connect to the EXT POS connection have not allowed the conveyance of the 
price and discount information to the carwash POS equipment.  Therefore, the 
Net Register and EXT POS Sales on the Carwash POS equipment accounting 
reports will be in discrepancy with the Register totals or Back room reports from 
the EXT POS device. The following is a method of taking the reports and totalize 
the car wash sales. 
Reports from the Register: 
All manufacturers of Register equipment provide reporting of Car wash sales via 
a report system. You should find a report that details both Register Totals and 
Pump totals. The totals on this report should be reset at the same time you reset 
the totals on your Carwash POS. 
Take this value and this is you’re: Correct EXT POS Totals. 
Reports from the Unitec Carwash POS: 
Sample Totals section of report: 
 MANAGER SHIFT 
REGISTER SUMMARY 
 Console Sales $ 200.00 $ 12.00 
 EXT POS Sales $ 6,175.00 $ 220.00 
 Sales Refunds-$ 12.00 $ 3.00 
 Net Register $ 6,363.00 $ 229.00 
COIN BOX SUMMARY 
 Cash Deposited $ 650.00 $ 23.00 










