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19
energized again. The hold time is 500ms, after it will
be disconnecting.
On and off point
value of relay No.2
(Correspond to
instantaneous flow
rate)
Same with on and off point value of No.1. Correspond
to instantaneous flow rate.
But when the relay No.2 is set as Accumulated Flow
Pulse , then this value is invalid, no need to set this
parameter.
Status of relay No.3
(Correspond to
level in the weir)
This parameter determines the status of relay No.3, its
setting form is same with previous Relay No.1.
On and off point
value of relay No.3
(Correspond to
level in the weir)
Same with on and off point value of No.1. Correspond
to level in the weir.
Status of relay No.4
(Correspond to
level in the weir or
Accumulated Flow
Pulse )
This parameter determines the status of relay No.4, its
setting form is same with previous Relay No.1.
But when it is set at “EC20”, the relay No.4 is used to
output the Accumulated Flow Pulse. Accumulated
flow for each additional 1m
3
, relay 4 will be
energized again. The hold time is 500ms, after it will
be disconnecting.
On and off point
value of relay No.4
(Correspond to
level in the weir)
Same with on and off point value of No.1. Correspond
to level in the weir.
But when the relay No.4 is set as Accumulated Flow
Pulse , then this value is invalid, no need to set this
parameter.
Status of relay No.5
(Correspond to
level in the weir or
fault alarm)
This parameter determines the status of relay No.4, its
setting form is same with previous Relay No.1.
But when it is set at “EC20”, the relay No.5 is used as
fault alarm, if there is fault with sensor or no signal
detected, the relay No.5 will be closed , if not, it will
keep opening.
On and off point
value of relay No.5
Same with on and off point value of No.1. Correspond
to level in the weir.
But when the relay No.5 is set as fault alarm, then this
value is invalid, no need to set this parameter.
The delay time of
relays action
This parameter displays in form of “F-ab”, the last two
digits “ab” determines the delay time of relays action.
The unit is seconds. Such as it is set as “F-05”, it means
the delay time of relays action is 5 seconds. This
parameter is designed to prevent repeatedly open and
close of the relays caused by the liquid surface
fluctuation, also to avoid frequent opening of pump and
alarms.
Summary of Contents for BUFM660 Series
Page 1: ...MANUAL Ultrasonic Open Channel Flow Meter...
Page 9: ...8 Parshall flume triangular weir rectangular weir...
Page 10: ...9 2 2 Mounting dimensions The host...
Page 11: ...10...
Page 12: ...11 The probe The remote control...
Page 29: ...28...