Trolex XD One, Руководство пользователя

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11.48 Relay override
If the alarms are enabled, in normal operation the relays will switch over if the assigned alarm
threshold is exceeded. In some applications it may be necessary to override the relays to switch
on a piece of equipment manually even if the alarm threshold has not been exceeded. To allow
this functionality, coil registers (13 and 14) are provided for overriding the relays.
To move a relay to the normally open position, write ‘1’ to the corresponding relay. To place the
relays back under the control of the alarms by writing ‘O’ to the relay.
The relays can also be overridden even when the alarms are disabled.
11.49 Watchdog
The Air XD contains an electronic watchdog to detect and recover from malfunctions without
requiring input from the user. Once a device anomaly or malfunction has been detected, the unit
will automatically implement a restart sequence.
The instrument will take up to 10 seconds to initiate a soft reset. On recovery from a soft reset,
the time based averages are restored and the instrument will continue to log data from the point
recorded before the watchdog reset.
Note: In the event of a hard reset, time based averages are reset to factor default (removal of
power, then re-application).
“Settings” > “Firmware updates” > Select device > Confirm update
Air XD_User manual_P5628.1600_Rev D