Alarms; Operational Indications - Landis+Gyr ZMQ202 User Manual

6.3.2

Alarms

6.3.3

Operational Indications

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Internal meter errors that can prevent the meter from measuring correctly
and can cause the measured data to be incorrect are classified as Alarms.
An FF and error code on the display, constantly lit alarm LED, and possibly
an alarm output (depending on parameter settings) signifies an Alarm.
Normally the alarm output remains until the Alarm is cleared but it may
also be cancelled after a defined period depending on the parameter
settings.
When an Alarm occurs, contact the service engineer. Depending on
parameter settings, it may be possible to clear the Alarm by pressing the
alarm reset button.
Alarms are shown on the display and in the event log (depending on
parameter settings) as follows:
Read/Write Access Errors:
Display Description
FF 00040000 Measuring system
FF 00080000 Time base (CTS)
FF 00100000 Data profile memory (FLASH)
FF 00400000 Communication unit
Checksum Errors:
Display Description
FF 00000400 FLASH parameters
FF 00000800 FLASH data profile
Other Errors:
Display Description
FF 00000001 Invalid start-up sequence
FF 00000010 System error
There are two types of Operational Indications:
• Internal conditions that remain until the condition is rectified, e.g.
battery voltage low. An FF and error code on the display, blinking alarm
LED, an alarm output, and possibly an entry in the event log (depending
on parameter settings) signifies an internally generated Operational
Indication.
Operational Indications are cancelled when the appropriate steps have
been taken to remedy the condition, e.g. the battery is replaced.
Event log number
75
76
77
79
Event log number
83
84
Event log number
89
93
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