Troubleshooting - Hach Event Monitor Trigger System Manual Básico Del Usuario

1. Remove power to the monitor.
2. Turn the door latch with a wide flat-blade screwdriver or a coin and pliers. Open the door.
3. Carefully pull out the fuse holder. Refer to
4. Remove the fuse from the fuse holders.
5. Install a new fuse of the same type and rating in the fuse holder.
6. Install the fuse holder.
7. Turn the door latch with a wide flat-blade screwdriver or a coin and pliers.
8. Set the monitor power to on.
Shut down the monitor
Before power is removed, always shut down the Event Monitor software and operating system.
1. From the Main Menu, push MAINTENANCE.
2. Enter the user name and password, then push OK.
3. Push Shutdown, then OK.
4. At the Windows operating system, push Start, then select Shutdown.
5. Remove power to the monitor as necessary.

Troubleshooting

System and sensor alarms
System and sensor alarms occur when an equipment problem occurs. A failure is the highest priority
error. Immediate action is necessary. A warning is an elevated priority error. Corrective action is
necessary.
If multiple errors occur, the highest priority error shows. When multiple errors with the same priority
occur, the most recent shows. Once the error condition is resolved, the warnings are removed from
the system. But errors with a priority failure require the user to manually clear the error. Select the
alert button from the main screen and select SELECT ALL (or select individual errors) and CLEAR
SELECTED. The selected errors are cleared from the screen but kept in the error logs that are
available from the Maintenance menu.
Annunciator button
Communication failure
TOC off line
Annunciator button
SENSOR INVALID
SENSOR MISSING
SENSOR FROZEN
Warning high or warning
low
WARNING SENSORS
Figure 3
Table 8 System errors
Color Priority
Red Failure MODBUS returns a Mod I/O communication error.
Yellow Warning Low carrier gas pressure to the TOC analyzer.
Table 9 Sensor errors
Color Priority
Red Failure A sensor value is not within the maximum and minimum signal
range.
Red Failure A sensor value is not available to the monitor.
Red Failure A sensor value has not changed for a configured time period.
Refer to
Yellow Warning A sensor value is more or less than the sensor alarm high and
low alarm limits.
Yellow Warning More than one sensor value is more or less than the sensor
alarm high and low alarm limits.
on page 8.
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