21
range value.
7.2.3 Pulse output
There are 16 ways of pulse output of electromagnetic flowmeter heat meter: Flow frequency output, Flow
pulse Ltr, Flow pulse m
³
,Heat pulse MJ, Heat pulse GJ, Heat pulse KWh, Heat pulse MWh, Cooling
pulse MWh, Cooling pulse MJ, Cooling pulse GJ, Cooling pulse KWh, Heat and cooling pulse MJ, Heat
and cooling pulse GJ, Heat and cooling pulse KWh, Heat and cooling output MWh.
Frequency output method: The frequency output is a continuous square wave, and the frequency value
corresponds to the flow percentage.
Pulse output method: The pulse output is a rectangular wave pulse train. Each pulse represents a flow
equivalent in the pipeline. The pulse equivalent is set by the two parameters of ‘pulse output type’ and
the following ‘output pulse coefficient’.
The pulse output mode is mostly used for total accumulation, and is generally connected with an
accumulating instrument
;
Cooling and heat state output: When the pulse output indicates the cold and hot state, the heat is at low
level and the cooling capacity is at high level;
When the pulse output indicates the cold and hot state, the heat is at low level and the cooling capacity is
at high level;
When the pulse output indicates the cold and hot state, the heat is low and the cooling capacity is high;
When the pulse output indicates the cold and hot state, the heat is at low level, and the cold is at high
level;
When the pulse output indicates the cold and hot state, the heat is at low level and the cold is at high
level;
Flow direction output: When the pulse output indicates the flow direction, the forward direction is low
level, and the reverse direction is high level.
7.2.4 Frequency output upper limit
The electromagnetic flowmeter heat meter frequency corresponds to the percentage output of the flow
rate
(
Do not correspond to heat and cold
)
, Optional range 1~5000.
Calculated as follows:
Instrument frequency output value =
(
Flow rate measurement value / Flow range
)
* Frequency full scale
value;
7.2.5 Output pulse coefficient
Impulse coefficient is impulse equivalent, The range is 0.001
~
59.999, The unit is the same as the unit of
the selected pulse output type and is used to measure the pulse output.
7.3 Flow meter location
If the heat meter flow sensor is insta
lled at the inlet of the heating pipe, please select ‘flow inlet’; if the
heat meter flow sensor is installed at the outlet of the heating pipe, please select ‘flow outlet’. this
parameter does not correspond to the actual installation, which will cause calculation errors.
7.4 Temperature parameter
7.4.1 Measure water temperature from heat and cooling meters
The temperature limit for the meter to measure heat and cold. When the temperature is lower than the
set temperature, the meter does not calculate the heat and cold.
7.4.2 Working pressure selection
The electromagnetic heat meter complies with the People's Republic of China's urban construction
industry standard CJ128-2007. It has two pressures of 0.6MP and 1.6MP, which are convenient for users
Summary of Contents for MFE600H Series
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