Rack Monitor 8800E/8801E
Document: Operation Manual
Date: 16-Jun-2011
Version: A.6
Page 31 of 35 H71343
Troubleshooting.
The following troubleshooting guide will give you first aid hands-on in solving most of the problems you can
encounter.
there are two types of problems.
1. operational issues.
2. hardware problems.
Most commonly are the operational issues. Caused before or during loading a Tank-Truck.
The amount of hardware problems will increase if the 8800E/8801E Rack Monitor is NOT serviced on a regular
base. Especially the cable and plug are subject to wear out. Although a high quality cable is used it cannot
withstand the strength of a Tank-Truck. Also dirt can build up between the spring-loaded pins and the insert of the
plug. If pin 10 is not moving in the insert of the plug an electrostatic discharge via other pin can damage the input
circuits of the 8800E/8801E Rack Monitor.
Therefore check cable and pins/plug on a regular base to avoid traffic block on a loading bay.
The common operational issues are wrong, defect or poor connected sensors. In some cases a not correct
adjusted sensor can cause a premature (or delayed) shutoff of the loading procedure.
If the 8800E Rack Monitor does switch to the permissive state it will show the most probably cause on the LC-
Display
The 8800E findings are based on the measured data and its conclusion might not be the correct conclusion.
In this unlikely case the Red Bypass Key must be used to show the most relevant sensor data on the Diagnostic
screen (on the LC-Display).
If the 8800E/8801E Rack Monitor is set to accept only EN13922 compliant sensors, it will reject ALL sensors and
wiring which is not according this standard. This will be shown on the LC-Display and can easily bypassed with the
Blue Bypass Key. (8800E/8801E Rack Monitor will switch back to ROW sensors)
Since this is a new standard a lot of Tank-Trucks might not be wired according this standard or the sensors are on
the boundary of the EN13922. During this transition period the 8800E/8801E Rack Monitor can be set to ROW
(Rest Of the World) values by means of placing the Brown switch in the ON position.
e.g. previous On Board Monitors (OBM or ROM) can be connected with shorted channels and since the EN13922
will refuse shorts it will NOT go to the permissive state.
Note: Faulted channels, for instance “Open Wire” can not be bypassed with the Blue Bypass key and the Red
Bypass key must be used
