User manual - FLOW METER SPI-638
“CLrtot”
- this option allows zeroing of total flow counter. After selection of this option ask
“CLEAr?”
is displayed. If user press
[ENTER]
total flow counter is cleared, else
action is cancelled
Zeroing of
total flow counter
is possible via RS-485 interface too. It can be done
as write of 0000h to any one of registers referred to
total flow counter
(09h ÷ 0Ch)
using RS 485 interface.
To protect total flow counter of unauthorised zeroing, it is recommended to set
password to menu access (see menu
“SECU”
).
“E Clr”
- this parameter allows selection of active level/edge of total flow zeroing input (see
Figure 4.13). It can be set to one of following:
“oFF”
- input disabled,
“HI”
- zeroing while high level on the input
“LO”
- zeroing while low level on the input
“LO-HI”
- zeroing while rising edge on the input
“HI-LO”
- zeroing while falling edge on the input
For settings “zeroing while high/low level” the selected level must be longer than 5ms.
“m CLr”
- this parameter allows to activate manual zeroing of
total flow counter
using
button:
”oFF”
- manual zeroing disabled,
”on”
- manual zeroing enabled.
7.3.7.
“ bL inP
” parameter
This parameter allows selection of active level/edge of blockade input (see Figure 4.13).
When
active state
is delivered to blockade input, it causes to stop counting by total flow
counter and batcher counter. It can be set to one of following:
“oFF”
- input disabled,
“HI”
- stop counting while high level on the input,
“LO”
- stop counting while low level on the input,
“LO-HI”
- successive rising edges alternatively stops/starts counting,
“HI-LO”
- successive falling edges alternatively stops/starts counting.
For settings “stop counting while high/low level” the selected level must be longer
than 5ms.
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