User manual
16
LCD IN MEASUREMENT LIST MODE
Hera stores a record of the equivalent continuous level
(LEQ) and maximum sound pressure level over a user
adjustable period of time into its memory. The memory can
contains up to 1440 items. When the memory is lled, the
newest measurement will replace the oldest. The time interval
between each item of this list is adjustable in the installer
menu. Interval can be from 1 minute to 8 hours. By default,
the interval between each record is of 15 minutes, giving a total
memory of 15 days.
When the LCD display is in ‘measurement list mode’, you
can inspect all records stored in the memory. Turn the ‘Data
Encoder’ knob to view the different measurements.
LCD IN ERROR LIST MODE
Hera can also detect if anyone has disconnected any cables
from it, or even if anyone has opened the lid which prevents
access to the Argos adjustment. Should any of these events
take place it is automatically stored in the list of errors and
events. This list, as the record of sound pressure levels, can be
inspected at any time by the user and can even be transferred
to a computer. It is thus extremely easy to see if anyone has
tried to cheat !
Turning the rotary encoder allows the operator to scroll through
any errors and events taking place in the system, showing the
date and time at which they occurred.
If the system generates an error, the ‘error ‘ LED (see the front
panel) illuminates. This error is instantly recorded in the error
list. The LED extinguishes when the problem disappears.
The list of messages, and their meaning, can be found here:
Message Meaning
Log Started Commencement of recording of errors and events.
Power Switch ON Hera started up.
Power Switch OFF Hera shut down.
Micro Disconnect Microphone disconnected from Hera.
Micro Connected Microphone connected to Hera.
Argos SealRemove The lid giving access to the Argos calibration facilities has been opened.
Argos Seal OK The lid giving access to the Argos calibration is in its proper place.
Argos Disconnect Data cable between the Argos and the Hera disconnected.
Argos Connected The Argos is connected to the Hera.
Argos Mic. Discon The XLR cable between the Argos and the Hera has been disconnected.
Argos Mic. Conn. The XLR cable is connected.
Clip Detection Argos VCA (level reducing device) overloaded.
Installer setting The Hera adjustment has been modied by the installer.
Warning Relay ON The ‘Alert’ output relay has been activated.
Alarm Relay ON The ‘Cut’ output relay has been activated.
Warn. Relay OFF The ‘Warning’ relay output have been deactivated.
Alarm Relay OFF The ‘Alarm’ relay output have been deactivated.
Warn. Relay Disc The ‘Warning’ relay has been disconnected.
Alarm Relay Disc The ‘Alarm’ relay has been disconnected.
In Stand alone Hera has been congured to work in stand-alone mode, but will detect if an Argos has been connected.
Transmis. Start Data transmission to the PC has begun.
Transmis. End Data transmission to the PC has been completed.