Burkert Type 8035 - Manual (Page 108)

106
Operatingandfunctions
9.8.4 monitoring the flow rate in the pipe
A malfunction in your process or in the flow sensor may be indicated either by too low or too high a flow rate.
The parameter "FLOW-W." makes it possible to monitor the flow rate.
• To disable the flow rate monitoring, set W- = W+ = 0.
• To disable one of the limits, set it to 0.
• When the warning message "WARN. LO" or "WARN. HI" is generated, access to the information menu,
go to the message and confirm the message by simultaneously pressing the keys 0......9 and for 2
seconds.
DEL. = 01
→
Enter the value of the time delay (value between 1 and 99 s) one or
the other threshold can be exceeded before a warning message is
generated by the device.
→
Confirm.
FLOW-W.
VOLUME-W.
W-= 0.000
W+= 0.000
→
Enter a flow rate value (in the unit chosen in the "UNIT" parameter)
such as W+ > W-, above which a "WARN HI" warning message is
generated by the device.
→
Confirm.
→
Enter a flow rate value (in the unit chosen in the "UNIT" parameter),
below which a "WARN LO" warning message is generated by the
device.
→
Confirm.
WARNiNG
Figure 94: Diagram of the "FLOW-W." parameter of the sub-menu "WARNING"
To be warned when the flow rate is too low or too high, enter the flow rate range (in the units that have been
chosen in the "UNIT" parameter of the Parameters menu), outside which the device generates a warning
message, "WARN LO" or "WARN HI", and turns the device status LED to orange.
When a warning message, "WARN LO" or "WARN HI", is generated by the device:
→
check the process.
→
if the process is not faulty, check the flow sensor condition and clean it if necessary.
→
if the flow rate measurement is still faulty, contact the Bürkert retailer.
English
Type 8025 - 8035 BATCH