System Maintenance
Device Status Indicators
SKF Wireless Machine Condition Sensor
91
Service Manual
Standardized Status 3
Specified in the HART Common Tables to support WirelessHART
Bit No
HART Definition
Device Manager Implementation
0
Capacity Denied
Set if device is unable to acquire communication
bandwidth required to support the burst messaging
specified or network manager reduces the bandwidth
allocated to the device.
1
Duplicate Master Detected
Not used
2
Bandwidth allocation pending
The device has asked for bandwidth from the Network
Manager and is awaiting Network manager response.
3
Block Transfer Pending
The device has a data set (waveform) awaiting transfer
to the host or gateway. The Gateway should open the
block transfer port and transfer the data.
4-7
Undefined
Reserved
Sensor Battery Status
The lower section of the
Sensor
>
Status
tab contains the
Battery Management
area.
Figure 52
.
Sensor >
Status
Tab, Battery Management.
The green battery charge bar displays the estimated remaining battery capacity in
percentage and mAh. The sensor’s firmware estimates the remaining battery capacity
and life in days based on the type and number of activities that the sensor has executed.
Battery life estimates are based on operation at room temperature (25 °C, 77 °F).
A healthy battery voltage ranges from 3.5 to 3.6 V. When a loaded battery voltage
lower than 3.3 V is measured, a
Critical power failure
message is reported on the
Status
tab’s
Extended Device Status Bit 2
. The battery will need to be replaced within
weeks or even days.
Click
Get historic info
to see the history of the sensor’s activities up to the last five
battery replacements.