Xylem Expert 800-900 - Manual (Page 15)

Manual
GB Manual Expert Log 800-900.doc
15
Configuration functions
Channels to record
Here, the channels to record are selected by checking off the corresponding boxes:
P1-P2 Pressure Sensor 1 – Pressure Sensor 2
P1 Pressure Sensor 1
P2 Pressure Sensor 2
T Optional temperature sensor
TOB1 Temperature Sensor 1 (Top of bridge)
TOB2 Temperature Sensor 2 (Top of bridge)
Start time
Specifies the time at which the device goes into recording mode at the earliest.
- at "write configuration : starts recording mode after Write Configuration
- at time event: starts recording mode at the time set
If the option Synchronize Time with PC-Clock is selected, the current PC time is written into the device
during Write Configuration. Multiple data loggers can simultaneously each be set to the current time
with this function.
Use Fixed Save-Interval
If this option is selected, the selected channels are recorded continuously at the interval specified in
the time field. The maximal settable interval depends on the device version and is either 18 hours, 12
min, 15 sec, or 99 days, 23 hours, 59 min, 59 sec.
Start Record at Event
When this function is activated, the selected channels are recorded only if a definite event has
occurred, for example, pressure exceeds *-or-* drops below a selectable pressure level, change in
pressure greater than a selected value, etc. The following additional functions appear when this option
is selected:
Event Detect Interval
In order to be able to detect an event, the device must read the current value at regular intervals and
compare with the selected event value. These regular intervals are specified in the time field. The
maximum interval is 18 hours 12 minutes 15 seconds
Recording-Interval after Event
After event detection, it is possible for recording of measured values to take place in another interval.
This parameter is set in this function and is independent of the value specified in Fixed Save-Interval.
The maximum interval is 18 hours 12 minutes 15 seconds
Example:
By enabling these functions, a device can be configured, such that every 30 minutes (Event Detect
Interval) the current measured value is compared with the selected event value, every 2 hours (Fixed
Save-Interval) a control recording is made, and as soon as the event has occurred, values are
recorded after an interval of 1 minute. (Recording-Interval after Event).