Description:
JFA2300 series counter adopts auto patch packaging process, it has strong anti-interference, multipoint output and control function, and multiple count mode. 6-bits LED digital display, wide display range, display brightness can be adjusted. A, B count output and can also take two external inputs.It is widely used in power, petrochemical, metallurgy, light industry, pharmaceutical, aviation and other fields.
Features:
Counting frequency can reach 20KHz;
Upper and lower limit alarm, delayed alarm and alarm delayed reset function, with LED alarm light indicator;
RS232 and RS485 serial interface supported by standard MODBUS
RTU communication protocol;
Equipped with the button reset function;
Adopts photoelectric isolation technology between the output, power
and communication;
Multiple size and model can be chosen;
Light touch button setting of panel, Keep parameter forever if the electricity is down.
Technical parameters:
Input and OutputInput signal0~20KHzMeasurement range0~999999Accuracy±1 pulseOutput signal4-20mA,0-10mA,0-20mA,1-5V,0-5VOutput loadCurrent type≤500Ω, voltage type≥250KΩAlarm outputrelay,capacity : AC220V/2A,DC24V/2ACommunicationMODBUS-RTU protocol,RS485 transmission distance≤1000m;RS232 transmission distance≤10m;
signal transmission rate ≤9.6kbpsPowerPowerDC20-29V,AC/DC100-240V 50/60HzPower consumption≤5WOther parametersInsulation resistance
output/input/power≥100MΩ(500VDC)Dielectric strength
output/input/power1500Vrms(1 min,no spark)Working temperature0~50ºC(No condensation and icing)Relative humidity25%~85%RHStorage temperature-10~60ºC(No condensation and icing)
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