Keys Description
Heart Beat: indicates normal operation (3 sec rate when in normal Recorder mode – and 1 sec
rate when in HMI mode).
Lock/Unlock: indicates whether the unit is metrological sealed state or not
Not applicable for Recorders (no metrological aspects)
Battery: indicates a low power supply condition (Bell Icon does not activate for this
condition).
Alarm: indicates any Alarm condition (excluding low power supply conditions).
Also - see Icon ‘D’ below.
IrDA Comm: indicates that the IrDA adapter (magnet) is present.
Escape key function indicator. On indicate key should be functional.
Navigation key function indicator: used to help indicate which keys are active at the moment.
Icon(s) being On indicate key should be functional.
‘OK’ (Enter) key function indicator. Used to accept values or enter a particular screen page of
HMI. On indicate key should be functional.
D Icon indicates Alarm Output hardware signal is turned on.
A-B-C Icons are not used for ERX 350
Smile: indicates the HMI is active. The navigation keys are functional.
Star / Asterisk: indicates a measurement is in process. (e.g. P1 being updated)
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