Progressive International Electronics RLM 2 User Manual

Page 42

RLM Systems Installation Guide

Version 3.0 © November 2008

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.