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1.6.3.14 Pulse output mode
There are two types of pulse output modes: frequency output and pulse output:
Frequency output mode: The frequency output is a continuous square wave, and the frequency value
corresponds to the flow percentage.
Frequency output value = (flow value measurement value / meter range) * frequency full range value;
Pulse output mode: The pulse output is a rectangular wave pulse train. Each pulse represents a flow
equivalent flowing through the pipeline. The pulse equivalent is selected by the following "pulse
equivalent unit" parameters. Join.
Frequency output and pulse output are generally in the form of 0C gate. Therefore, an external DC
power supply and load should be connected.
With empty tube detection function, no additional electrode is required. If the user chooses to allow the
empty pipe alarm, the meter can detect an empty pipe state when the fluid in the pipe is lower than the
measuring electrode: after detecting the empty pipe state, the meter's analog output and digital output
are set to signal zero, and the meter flow Displayed as zero.
1.6.3.18 Air traffic alarm threshold
The frequency output range of the meter corresponds to the upper limit of flow measurement, that is,
100% of the percentage flow: the upper limit of the frequency output can be arbitrarily set in the range
of 1 ~ 5000Hz.
1.6.3.16 Frequency output range
When the fluid is full of pipes (with or without flow rate), the air pipe alarm settings have been modified.
The user is more convenient to use. The air pipe report threshold parameter displays the measured
conductivity on the uplink, and the air pipe report threshold is set on the downlink. When setting the air
pipe alarm threshold, it can be set according to the measured conductivity. It can be set to 3 to 5 times
the measured conductivity.
1.6.3.19 Upper Limit Alarm Allowed
1.6.3.17 Air traffic alarm allowed
1.6.3.15 Pulse equivalent unit
Pulse unit equivalent refers to the flow value represented by a pulse. The meter pulse equivalent
selection range is:
At the same flow rate, if the pulse equivalent is small, the frequency of the output pulse is high, and the
accumulated flow error is small.
The user chooses to allow or prohibit.
1.6.3.20 h-limit alarm value
The upper limit alarm value is calculated as a percentage of the range. This parameter uses a
numerical setting method. The user sets a value between 0% and 199.9%. When the alarm condition
is met during the operation of the instrument, the instrument will output an alarm signal.
Pulse equivalent
Flow value
Pulse equivalent
Flow value
1
2
3
4
0.00lL/cp
0.01L/cp
0.1L/cp
1.0L/cp
5
6
7
8
3
0.001m /cp
3
0.01m /cp
3
0.1m /cp
3
1.0m /cp
EN
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