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721 Double-preset Electronic Counter |
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Product description:
Product Name: 721 Double-preset Electronic Counter
Working principle & Introduction: It adopts the international up-to-date single-chip machine technology and surface mounting technology (SMT). Through years of mating verification, the model 721 has been extensively applied in automatic packaging machinery, textile machinery, dying machinery, batching devices, elevators, mine probe cars, cable cutting machines, and punching machines. In addition, it adopts 5-digit LED display, screw connection, ratio display, double-preset output, multiple programming methods, and Germany industrial standard dimensions.
Product Series and Relevant Technical Parameters:
Model
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0 721 107
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0 721 105
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0 721 106
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0 721 125
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0 721 126
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Display
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5-digit red LED display Text height 7mm
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Voltage (Fluctuation range: ±10%)
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DC: 12 V~24V
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DC: 12 V~24V
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AC: 165V~265V
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DC: 12 V~24V
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AC: 165V~265V
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Power
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2W
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Data retention
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10 years
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Input impedance
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22kΩ
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Threshold voltage
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High level≥8 V, low level≤2 V
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Limit voltage
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±40V
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frequency
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30Hz or 5kHz, can be set by the programmable switch
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Counting (reset) signal trigger mode
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Positive or negative edge, can be set by the programmable switch
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Minimum pulse width
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17ms or 100μs
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Ratio set range
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0.001-9.999
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Signal output mode
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Transistor output
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Relay input
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Signal output time
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Min. 50ms, the middle about 1s, can be set in steady state
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Load capacity
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max. voltage AC:250V; DC:30V, max. current: 1A
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Duty cycle
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1:1
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Capacity of resisting disturbance
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Level 3 (IEC801)
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Front protection
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IP54, DIN40050
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Back panel protection
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IP00, DIN40050
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Operating temperature
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-10℃~+50℃
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Storage temperature
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-20℃~+70℃
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The counters can be modified as the single preset type according to customer needs, or be customized into 85 ~ 265VAC for power supply.
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Product installation & dimension diagram:

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