Progressive International Electronics RLM 2 User Manual
Page 42
RLM Systems Installation Guide
Version 3.0 © November 2008
36
RLM MECH FOR MECHANICAL DISPENSERS
Diagnostics
Troubleshooting
PROBLEM
ANALYSIS/RECOMMENDATION
RLM does not talk to tank monitor.
Run Tester or WinTester utility.
RLM Mech does not talk to Tester
or WinTester. See Testing the RLM
II Using Tester/WinTester in RLM II
section of manual.
! Check jumper settings on RLM Mech. Refer to Diagram: RLM Mech Connector/ Jumper
Layout
Baud correct?
Parity correct?
Stop bits correct?
Data bits correct?
Device address correct?
! Check power indicator on RLM main board.
! Check PC.
Comm port on PC OK?
RS232 cable plugged into PC?
! Port parameters set correctly on Tester/ WinTester?
RLM Mech does not capture any
data.
! Make sure return switch is wired (operating) correctly.
! Make sure wiring for pulser and return switches is correct.
RLM Mech data does not match
dispenser totals exactly.
! Make sure all dispensers are idle at beginning and end of totals test (snapshot).
! Check for defective pulser
! Make sure return switch is operating correctly.
Does not count on one or more
dispensers.
! Check pulser operation.
! Check MR going active after dispenser reset cycle. (With volt meter set on a 10vdc scale,
place probes on MR line and common. With MR switch inactive — dispenser off —
meter should read approximately 8vdc. With MR switch active — dispenser running —
your meter should read approximately 0VDC.)
One or more dispensers miscount.
! Loose wire connection to pulser.
! Defective pulser.
! Defective mechanical computer.
! Check MR signal operation.