Raritan EMX2-888, Руководство пользователя

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Chapter 6: Using the Web Interface
254
"normal" State
This state indicates the sensor is in the normal state.
For a contact closure sensor, usually this state is the normal state you
have set.

If the normal state is set to Normally Closed, the
normal
state means
the contact closure switch is closed.

If the normal state is set to Normally Open, the
normal
state means
the contact closure switch is open.
For a Raritan's DPX floor water sensor, the normal state must be set to
Normally Closed, which means no water is detected.
Note: See the Environmental Sensors Guide or Online Help for
information on setting the normal state or dip switch. This guide is
available on Raritan's
Support page
( http://www.raritan.com/support/ ).
For a numeric sensor, this state means the sensor reading is within the
acceptable range as indicated below:
Lower Warning threshold <= Reading < Upper Warning
threshold
Note: The symbol <= means smaller than (<) or equal to (=).
"alarmed" State
This state means a discrete (on/off) sensor is in the "abnormal" state.
Usually for a contact closure sensor, the meaning of this state varies
based on the sensor's normal state setting.

If the normal state is set to Normally Closed, the
alarmed
state
means the contact closure switch is open.

If the normal state is set to Normally Open, the
alarmed
state means
the contact closure switch is closed.
For Raritan's floor water sensor, the normal state must be set to
Normally Closed, which means no water is detected. The
alarmed
state
indicates that the presence of water is detected.
Note: See the Environmental Sensors Guide or Online Help for
information on setting the normal state or dip switch. This guide is
available on Raritan's
Support page
( http://www.raritan.com/support/ ).
Tip: A contact closure sensor's LED is lit after entering the
alarmed
state.
Determine which contact closure switch is in the "abnormal" status
according to the corresponding LED.