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7.3.4
Connection between converter and external instrument
The cable shall be connected to the terminal after crimping the end of the insulated straight
pipe.
7.3.4.1
Flow and heat current output
7.3.4.2
Flow and heat passive pulse output
important
● as it is a transistor node output (isolated type), please pay attention to the voltage and
power polarity when wiring.
● the DC voltage shall not be greater than 30 V and the current shall not be greater than
0.2 a to prevent damage to the instrument.
● when the input filter constant of the electronic counter is larger than the pulse width, it
will cause inaccurate counting, so try to increase the set value of the pulse width.
● if the input impedance of the electronic counter is large, the induced noise of the power
supply will cause counting errors. Use shielded cables or fully reduce the input
impedance of the electronic counter to make it within the specification range of the
pulse output of the electromagnetic heat meter.