Pag. 24 of 52
- Configuration
10.2.11 -
How to use the integrated data logger
Use the menu
M50
to activate the data logger and to select items.
Use the menu
M51
to set the start time, interval time and the recordings number.
Use the menu
M52
for sending data. The default setting is sending data via RS485
10.2.12 -
How to use the frequency output
The output frequency signal represents the instantaneous flow rate value and is used for connection with other
instruments. The frequency output is fully configurable by the user.
Enter the minimum flow in the “
M68
” menu, the maximum flow rate in the “
M69
” and the two of the frequency range
values in the
M67
”
For example, assuming that the the instantaneous flow rate varies from 0m3 to 3000m3/h, and the output signal
has 1000Hz maximum frequency and 200Hz minimum frequency, as required by the instrumentation connected to
the
DIMPU
. The user must enter 0 in “
M68
”, 3000 in “
M69
”, 200 and 1000 in “
M67
”.
The user must select the 24 option in the
M78
menu (OCT Output Setup) to direct the output frequency to the OCT
10.2.13 -
How to use the pulse output, totalizer repetition
The totalized volume can be sent as an output pulse. The totalizer will generate one pulse per volume unit.
The pulse totalizer can be generated by the OCT, relays or BUZZER hardware devices.
For example: configure the forward flow pulse output (POS), where each pulse corresponds to 0.1 cubic meters of
flow, the pulse output will be configured with the OCT output so that, for every 0.1 cubic meter of volume, OCT emits a
pulse.
Will need the following steps:
(1) Select “Cubic Meter” in the
M32
menu.
(2) Select “2. X0.1” in the
M33
menu.
(3) Select “9. POS Int Pulse” in the
M78
menu.
10.2.14 -
How to set the alarm signals
There are three different types of hardware available to transmit the alarm signal: sonorous, OCT output
(Open Collector) or relay output.
The sources that generate an alarm are:
(1) No signal
(2) Poor signal
(3) Instrument is not in measurement mode
(4) Reverse flow
(5) Frequency output over-range
(6) Flow out of range.
In addition there are two flow range alarm: the #1 alarm and #2 alarm; the flow range can be configured by the user
via the
M73
,
M74
,
M75
,
M76
.
For example, set the relay to emit an alarm signal when the flow rate is less than 300 m3/h, or is higher than 2000 m3/h.
Will need the following steps:
(1) Set 300 in
M73
for #1 alarm (insufficient flow)
(2) Set 2000 in
M74
for #1 alarm (excessive flow)
(3) Select option “
6
” (ALARM #1) in
M79
.
